looking at the universe through infrared spectacles
TRANSCRIPT
![Page 1: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/1.jpg)
Dr. Tigran Khanzadyan (NUIG)
Looking at the Universe through Infrared
Spectacles
![Page 2: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/2.jpg)
Overview• Discovery of Infrared
• Waves and frequencies
• Infrared in our life
• Infrared Astronomy and it’s limitations
• Hidden Universe revealed
• Types of Infrared and the actual discoveries
• Future of Infrared Astronomy
![Page 3: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/3.jpg)
Infrared?
• What do you associate with this name?
![Page 4: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/4.jpg)
Infrared?
• What do you associate with this name?
Night Vision?
![Page 5: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/5.jpg)
Infrared?
• What do you associate with this name?
Night Vision?
Missile guidance system?
![Page 6: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/6.jpg)
Infrared?
• What do you associate with this name?
Night Vision?
Missile guidance system?
How about the weather?
![Page 7: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/7.jpg)
Discovery of Infrared
![Page 8: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/8.jpg)
Discovery of Infrared
• In 1800 Herschel made the discovery of “calorific rays" during his famous experiment.
Sir Frederick William Herschel(1738-1822)
![Page 9: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/9.jpg)
Discovery of Infrared
• In 1800 Herschel made the discovery of “calorific rays" during his famous experiment.
• “Calorific rays” were later renamed infrared rays - which means below red (from the Latin infra, "below")
Sir Frederick William Herschel(1738-1822)
![Page 10: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/10.jpg)
Herschel’s Experiment
![Page 11: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/11.jpg)
Herschel’s Experiment
![Page 12: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/12.jpg)
Herschel’s Experiment
![Page 13: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/13.jpg)
Herschel’s Experiment
![Page 14: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/14.jpg)
Herschel’s Experiment
![Page 15: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/15.jpg)
Herschel’s Experiment
in 1 min
![Page 16: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/16.jpg)
Herschel’s Experiment
in 1 min
in 2 min
![Page 17: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/17.jpg)
Herschel’s Experiment
in 1 min
in 2 min in 3 min
![Page 18: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/18.jpg)
Herschel’s Experiment
in 1 min
in 2 min in 3 min
In the beginning all 3 thermometers show 76 F
Final readings are: thermometer 1 = 80Fthermometer 2 = 83Fthermometer 3 = 86F ?!
![Page 19: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/19.jpg)
Herschel’s measurements
![Page 20: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/20.jpg)
Herschel’s measurements
• He measured the temperatures of the violet, blue, green, yellow, orange and red light and noticed that all of the colours had temperatures higher than in the beginning.
![Page 21: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/21.jpg)
Herschel’s measurements
• He measured the temperatures of the violet, blue, green, yellow, orange and red light and noticed that all of the colours had temperatures higher than in the beginning.
• But the temperature of the colours increased from the violet to the red part of the rainbow - interesting!
![Page 22: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/22.jpg)
Herschel’s measurements
• He measured the temperatures of the violet, blue, green, yellow, orange and red light and noticed that all of the colours had temperatures higher than in the beginning.
• But the temperature of the colours increased from the violet to the red part of the rainbow - interesting!
• He then measured the temperature just beyond the red portion of the rainbow in a region apparently devoid of sunlight - highest of all!
![Page 23: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/23.jpg)
Right, but why?
![Page 24: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/24.jpg)
Right, but why?• It was strange that temperature in the shade
was higher than that of under the direct sun light.
![Page 25: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/25.jpg)
Right, but why?• It was strange that temperature in the shade
was higher than that of under the direct sun light.
• Herschel then concluded that some other sort of light which can-not be seen is causing this temperature rise.
![Page 26: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/26.jpg)
Right, but why?• It was strange that temperature in the shade
was higher than that of under the direct sun light.
• Herschel then concluded that some other sort of light which can-not be seen is causing this temperature rise.
• He then discovered that this “invisible” light or radiation can be reflected, refracted, absorbed and transmitted just like the visible light.
![Page 27: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/27.jpg)
Right, but why?• It was strange that temperature in the shade
was higher than that of under the direct sun light.
• Herschel then concluded that some other sort of light which can-not be seen is causing this temperature rise.
• He then discovered that this “invisible” light or radiation can be reflected, refracted, absorbed and transmitted just like the visible light.
• So there is an invisible light beyond the red!
![Page 28: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/28.jpg)
Waves ...
![Page 29: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/29.jpg)
• Waves can be slow or fast and therefore can be more or less frequent - we call it frequency of the waves.
Waves ...
![Page 30: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/30.jpg)
• Waves can be slow or fast and therefore can be more or less frequent - we call it frequency of the waves.
• When the waves are small they are more frequent and when the waves are big they are less frequent.
Waves ...
![Page 31: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/31.jpg)
• Waves can be slow or fast and therefore can be more or less frequent - we call it frequency of the waves.
• When the waves are small they are more frequent and when the waves are big they are less frequent.
• We say that the frequency of waves is inversely proportional to the size of waves.
Waves ...
![Page 32: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/32.jpg)
• Waves can be slow or fast and therefore can be more or less frequent - we call it frequency of the waves.
• When the waves are small they are more frequent and when the waves are big they are less frequent.
• We say that the frequency of waves is inversely proportional to the size of waves.
• We know that the light is also a wave, and every wave has it’s height and length.
Waves ...
![Page 33: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/33.jpg)
Wavelength and Frequency
![Page 34: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/34.jpg)
Wavelength and Frequency
• Wavelength is the distance between individual waves (e.g. from one peak to another). Visible light - 400 to 700 billionths of a meter - or 400 to 700 nanometers (nm).
![Page 35: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/35.jpg)
Wavelength and Frequency
• Wavelength is the distance between individual waves (e.g. from one peak to another). Visible light - 400 to 700 billionths of a meter - or 400 to 700 nanometers (nm).
• The frequency is the number of waves which pass a point in space each second. Visible light - 430 trillion waves per second (red) to 750 trillion waves per second (violet).
![Page 36: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/36.jpg)
Wavelength and Frequency
• Wavelength is the distance between individual waves (e.g. from one peak to another). Visible light - 400 to 700 billionths of a meter - or 400 to 700 nanometers (nm).
• The frequency is the number of waves which pass a point in space each second. Visible light - 430 trillion waves per second (red) to 750 trillion waves per second (violet).
• Light waves are waves of energy and the amount of energy in a wave is proportional to its frequency.
![Page 37: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/37.jpg)
Electromagnetic spectra
![Page 38: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/38.jpg)
Electromagnetic spectra
• We see only tiny portion of the spectra - the visible part.
![Page 39: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/39.jpg)
Electromagnetic spectra
• We see only tiny portion of the spectra - the visible part.
• InfraRed is below the Red since it’s waves are less frequent that of the Red light.
![Page 40: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/40.jpg)
Electromagnetic spectra
• We see only tiny portion of the spectra - the visible part.
• InfraRed is below the Red since it’s waves are less frequent that of the Red light.
• Infrared spans from 0.7 micrometers to about 350 micrometers (μm)
![Page 41: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/41.jpg)
Present Day Infrared
![Page 42: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/42.jpg)
Present Day Infrared• Archeology, Animal Studies, Geology, Vegetation
and Soil, Meteorology, Oceanography … Astronomy!
![Page 43: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/43.jpg)
Present Day Infrared• Archeology, Animal Studies, Geology, Vegetation
and Soil, Meteorology, Oceanography … Astronomy!
• In Arts and History - reconstruction works
![Page 44: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/44.jpg)
Present Day Infrared• Archeology, Animal Studies, Geology, Vegetation
and Soil, Meteorology, Oceanography … Astronomy!
• In Arts and History - reconstruction works
• Health & Safety - environmental monitoring, Medicine, Fire Fighting, Search and Rescue, Military, Law Enforcement
![Page 45: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/45.jpg)
Present Day Infrared• Archeology, Animal Studies, Geology, Vegetation
and Soil, Meteorology, Oceanography … Astronomy!
• In Arts and History - reconstruction works
• Health & Safety - environmental monitoring, Medicine, Fire Fighting, Search and Rescue, Military, Law Enforcement
• Commercial applications - Maintenance of Mechanical Systems, Electrical Systems, Heat Loss in Structures, Navigation, Food Industry
![Page 46: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/46.jpg)
![Page 47: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/47.jpg)
![Page 48: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/48.jpg)
![Page 49: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/49.jpg)
![Page 50: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/50.jpg)
![Page 51: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/51.jpg)
![Page 52: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/52.jpg)
Infrared Astronomy?
![Page 53: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/53.jpg)
Infrared Astronomy?• All objects emit infrared radiation.
![Page 54: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/54.jpg)
Infrared Astronomy?• All objects emit infrared radiation.
• Infrared Astronomy is the detection and study of the infrared radiation (heat energy) emitted from objects in the Universe.
![Page 55: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/55.jpg)
Infrared Astronomy?• All objects emit infrared radiation.
• Infrared Astronomy is the detection and study of the infrared radiation (heat energy) emitted from objects in the Universe.
• So, Infrared Astronomy involves the study of just about everything in the Universe.
![Page 56: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/56.jpg)
Infrared Astronomy?• All objects emit infrared radiation.
• Infrared Astronomy is the detection and study of the infrared radiation (heat energy) emitted from objects in the Universe.
• So, Infrared Astronomy involves the study of just about everything in the Universe.
• We need powerful infrared detectors, but there is a dilemma - everything around us radiates in infrared how we are going to “see” what’s out there?
![Page 57: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/57.jpg)
Cryogenics
![Page 58: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/58.jpg)
Cryogenics• So we need to keep our detectors
somewhere cold to prevent the surrounding heat.
![Page 59: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/59.jpg)
Cryogenics• So we need to keep our detectors
somewhere cold to prevent the surrounding heat.
• Here comes the Cryogenics - means "the production of freezing cold".
![Page 60: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/60.jpg)
Cryogenics• So we need to keep our detectors
somewhere cold to prevent the surrounding heat.
• Here comes the Cryogenics - means "the production of freezing cold".
• All infrared detectors are placed in the cryostats and cooled down.
![Page 61: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/61.jpg)
Cryogenics• So we need to keep our detectors
somewhere cold to prevent the surrounding heat.
• Here comes the Cryogenics - means "the production of freezing cold".
• All infrared detectors are placed in the cryostats and cooled down.
• Now-days we cool down the detectors up-to 10 Kelvin (-442 F)!
![Page 62: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/62.jpg)
Cryogenics• So we need to keep our detectors
somewhere cold to prevent the surrounding heat.
• Here comes the Cryogenics - means "the production of freezing cold".
• All infrared detectors are placed in the cryostats and cooled down.
• Now-days we cool down the detectors up-to 10 Kelvin (-442 F)!
![Page 63: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/63.jpg)
Our Atmosphere
![Page 64: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/64.jpg)
Our Atmosphere
• Water vapours prevent us from detecting the radiation coming from the space in most of the infrared bands.
![Page 65: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/65.jpg)
Solution?
![Page 66: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/66.jpg)
Solution?We could build the
observatories in dry and high places like Muna Kea
and many others.
![Page 67: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/67.jpg)
Solution?We could build the
observatories in dry and high places like Muna Kea
and many others.
We could use balloons, rockets
and aircrafts to go even higher
![Page 68: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/68.jpg)
Solution?We could build the
observatories in dry and high places like Muna Kea
and many others.
We could use balloons, rockets
and aircrafts to go even higher
Or we could rise above
the atmosphere IRAS MSXISO SPITZER
![Page 69: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/69.jpg)
Constellation of Orion
![Page 70: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/70.jpg)
Constellation of Orion
![Page 71: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/71.jpg)
![Page 72: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/72.jpg)
![Page 73: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/73.jpg)
![Page 74: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/74.jpg)
![Page 75: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/75.jpg)
![Page 76: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/76.jpg)
Jupiter
![Page 77: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/77.jpg)
Jupiter
![Page 78: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/78.jpg)
Hubble Space Telescope
Orion NebulaOMC-1
![Page 79: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/79.jpg)
Hubble Space Telescope
Orion NebulaOMC-1
![Page 80: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/80.jpg)
![Page 81: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/81.jpg)
![Page 82: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/82.jpg)
![Page 83: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/83.jpg)
Sombrero Galaxy - M104
![Page 84: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/84.jpg)
Sombrero Galaxy - M104
![Page 85: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/85.jpg)
![Page 86: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/86.jpg)
Why we need Infrared in Astronomy?
![Page 87: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/87.jpg)
Why we need Infrared in Astronomy?
• By observing Infrared radiation the hidden Universe can be revealed (as we observed a minute ago).
![Page 88: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/88.jpg)
Why we need Infrared in Astronomy?
• By observing Infrared radiation the hidden Universe can be revealed (as we observed a minute ago).
• Infrared range is quite wide compared to the visible light therefore we can potentially find more objects of interest.
![Page 89: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/89.jpg)
Why we need Infrared in Astronomy?
• By observing Infrared radiation the hidden Universe can be revealed (as we observed a minute ago).
• Infrared range is quite wide compared to the visible light therefore we can potentially find more objects of interest.
• There are many objects in Universe which can only be seen through the infrared “spectacles”.
![Page 90: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/90.jpg)
Types of Infrared
![Page 91: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/91.jpg)
Solar System Objectsand extraterrestrial
system
![Page 92: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/92.jpg)
![Page 93: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/93.jpg)
![Page 94: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/94.jpg)
![Page 95: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/95.jpg)
![Page 96: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/96.jpg)
![Page 97: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/97.jpg)
![Page 98: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/98.jpg)
Stellar Nurseriesand related objects
![Page 99: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/99.jpg)
![Page 100: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/100.jpg)
![Page 101: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/101.jpg)
![Page 102: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/102.jpg)
![Page 103: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/103.jpg)
![Page 104: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/104.jpg)
![Page 105: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/105.jpg)
![Page 106: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/106.jpg)
![Page 107: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/107.jpg)
![Page 108: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/108.jpg)
Other galaxies
![Page 109: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/109.jpg)
![Page 110: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/110.jpg)
![Page 111: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/111.jpg)
![Page 112: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/112.jpg)
![Page 113: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/113.jpg)
Future of Infrared Astronomy
![Page 114: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/114.jpg)
Future of Infrared Astronomy
• Even though we have an enormous success with the past and current Infrared telescopes on the ground and in the space we still have many unanswered questions and problems.
![Page 115: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/115.jpg)
Future of Infrared Astronomy
• Even though we have an enormous success with the past and current Infrared telescopes on the ground and in the space we still have many unanswered questions and problems.
• At the moment there are several planned space missions which we will use to fill the gaps in our knowledge of universe, but surely future will present us with the new challenges and mysteries and we will plan more future missions.
![Page 116: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/116.jpg)
![Page 117: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/117.jpg)
• Herschel discovered the Infrared Light.
• Presently Infrared technology is widely used in every-day life.
• Infrared Astronomy reveals the hidden universe.
• Different types of objects can be studied using the Infrared Technology advancing our knowledge of the universe.
• Future of Infrared Astronomy is promising!
![Page 118: Looking at the Universe through Infrared Spectacles](https://reader030.vdocuments.site/reader030/viewer/2022032502/55bac7a5bb61eb11118b4756/html5/thumbnails/118.jpg)
Thank you!Questions?