21cm tomography
DESCRIPTION
The scale frontier. 21cm tomography. MT & Zaldarriaga, arXiv:0805.4414. 21 cm tomography experiments:. GMRT = Giant Metrewave Radio Telescope. Experiment GMRTPAST/21CMA LOFAR MWAPAPERSKA. # of Antennas(Total) 30 dishes 10,000 8,19216 (4). - PowerPoint PPT PresentationTRANSCRIPT
Max TegmarkDept. of Physics, MIT
June 21, 2010
The scale frontier
MT & Zaldarriaga, arXiv:0805.4414
21 cm tomography experiments:
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
GMRT = Giant Metrewave Radio Telescope
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
21CMA/PaST = Primeval Structure Telescope
21 cm tomography experiments:
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
21CMA/PaST = Primeval Structure Telescope
Figures from Jy Wang
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
LOFAR = Low Frequency ARray
2 Km
100 Km
32 sta.
77 sta. vv
vv
vv
vv
21 cm tomography experiments:
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
MWA = Murchison Widefield Array
21 cm tomography experiments: Pictor A
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
Cas A
3C 392
Cygnus A
PAPER = Precision Array to Probe Epoch of Reionization
21 cm tomography experiments:
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
PAPER = Precision Array to Probe Epoch of Reionization
21 cm tomography experiments:
Physics of the 21 cm Line:
Cylinder Telescope Consortium (Pittsburgh -> Morocco)
Physics of the 21 cm Line:
# of Antennas(Total) 30 dishes 10,000 8,192 16 (4)
# of Antennas(Installed) 30 dishes 2,000 (4 Tiles) 512 (32 Tiles) 8 (0)
# of Tiles NA 20 (1 Tile=500 ant) 96(1 Tile=16 ant) 512 (1 Tile=16 ant) NA
Effective Area (m2) 5.104 7.0.104 1.0.105 ~ 104 1.0.104 1.0.106
Imaging Field of View 2o 3o - 7.5o ~ 5o 30o - 1o
Angular Resolution 3.8o - 0.4o 3’ 25” - 3.5” ~ 15’ < 0.1’
Frequency Range (MHz) 50 - 1420 50 - 200 10 - 240 80 - 300 110 - 200
Mapping Sensitivity 15mK/(day)1/2
Site India China Netherlands Australia USA/AUS AUS(?)
Year 2007 2007 2007 2008 2008 2015(?)
Experiment GMRT PAST/21CMA LOFAR MWA PAPER SKA
96 V crossed Dipoles
SKA = Square Kilometer Array
Max TegmarkDept. of Physics, MIT
June 21, 2010
Image: FORTE satellite
MWA
PAST/21CMALOFAR GMRTPAPER
SKA ?
21 cm tomography experiments:
CYLINDER
Participants: MIT, Harvard, Washington, Berkeley, JPL, NRAO
PI: Jacqueline Hewitt, MIT
LARC: Lunar Array for Radio Cosmology