the apollo years webb, a human, a vision his legacy...
TRANSCRIPT
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James Webb Webinar I
● Introduction● Childhood● Early career● The Apollo years● Webb, a human, a vision● His legacy
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James Webb Webinar I
● JWST - a HST/Spitzer mutant on steroids
● Call for proposals● Instruments and Jdox● Live demo APT/ETC● Last word
This presentation is available here: jwst.astro.umontreal.ca, click on the Webinars tab
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Who is James Webb?
● James Edwin Webb (1906-1992).● 2nd NASA Administrator from '61 to '68.● Ensured NASA had a focus on science.
○ Mariner missions to Mars and Venus.○ Orbiting Solar Observatory program.○ Explorers program science satellites.○ More than 75 space science missions.
● Envisioned a space telescope as a major NASA effort in 1965.
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NIRSpec
MIRI
NIRCam
FGS/NIRISS
NIRISS Instrument:P.I. René DoyonCo-P.I. Chris Willott (NRC-HAA)
Presenters today: ● Loïc Albert● Neil Cook (APT demo)● Geert Jan Talens (ETC demo)
Four Science Instruments
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The Telescope
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United with the Spacecraft
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25 m2
4.5 m2
0.6 m2
JWST compared with HST and Spitzer
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Four instruments in the focal plane
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JWST offers 17 observing modes (0.6-28 microns)
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Science themes of JWST
● Guaranteed Time Observations (GTO) ~4000 h over Cycles 1-3 - >100 science programs
● Early Release Science (ERS) ~450 h - 13 science programs● http://www.stsci.edu/jwst/observing-programs
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JWST Deep Fields
Hubble XDFWFC3 - F160W - 65 h
Expected JWSTNIRCam - F356M - 2 h
Expected JWSTNIRCam - GrismR + F356M - 2 h
©E. Egami
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Exoplanet atmosphere spectroscopy
©N. CrouzetWASP-79, 4 transits, one for each instrument mode
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Spectroscopy of Europa Plumes
©S. Milam/G. Villanueva
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GTO and ERS programs of particular interest
● Ferruit. 83 h. NIRSpec IFU on 15 high redshift galaxies and QSO.
● Lafreniere. 200 h. NIRISS exoplanet atmosphere spectroscopy.● Eisenstein. 500 h. Combined on GOODS-N and GOODS-S with
3 instruments.● Henning. 112h. Survey of ~50 young stars. MIRI spectro to study
chemistry of disks.● And so many more...
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Call for Proposals
● Deadline May 1● 6 months of Commissioning● The deadline will hold in the event of a Launch delay
https://jwst-docs.stsci.edu/jwst-opportunities-and-policies/jwst-call-for-proposals-for-cycle-1
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Call for Proposals
● Deadline May 1● ~35% of time is used by GTO/ERS in Cycle 1
(http://www.stsci.edu/jwst/observing-programs/)● 4+4 pages long, submitted through the Astronomer Proposal Tool (APT)● Streamline proposal (phase 1 + 2 at submission)● We recommend to start at least 6 weeks before deadline● CSA funding at about the same level as NASA (to be announced)● Double-blind review
https://jwst-docs.stsci.edu/jwst-opportunities-and-policies/jwst-call-for-proposals-for-cycle-1
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Begin by mid-March
LATEST!!!!!!
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Worked example● Target visibility tools:
○ General target visibility tool (GTVT)○ Coronagraphic visibility tool (CVT)○ JWST Background tool (JBT)
● Our example:○ G 139-21 (A star)○ flux calibration○ Want a spectrum (1 - 5 ㎛) with
SNR=100 at 5㎛ ○ Fake magnitude: Johnson J = 15 (Vega) ○ To be observed in September 2021
● Setup:○ Instrument: NIRSpec ○ Mode: Fixed Slit Spectroscopy○ Target Acquisition: None○ Slit: S200A1○ Subarray: SUBS200A1○ Dithers: None○ Grating: PRISM/CLEAR○ Readout Pattern: NRS RAPID○ Special Requirements:
■ Observe September 2021
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Astronomer Proposal Tool (APT)
http://www.stsci.edu/scientific-community/software/astronomers-proposal-tool-apt
Current version: 2020.1.1
Submission version: 2020.2 (release March 5th)
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Back toAstronomer Proposal Tool
(APT)http://www.stsci.edu/scientific-community/software/astronomers-proposal-tool-apt
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Upcoming Workshops/Webinars in Canada● This webinar will be posted on Youtube (NIRISSInstrumentTeam user)● January 30-31, University of British Columbia● March 12th, University of Western Ontario● March 18th, Université de Montréal● April 14th, Q/A webinar● April 22nd, Q/A webinar
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Take-home messages● Begin by mid-March LATEST!!!!!!● JDox is your friend● APT has the final say● Use JWST Help Desk or email us!● Come to one of our workshops● Begin by mid-March LATEST!!!!!!
[email protected] presentation is available here: jwst.astro.umontreal.ca, click on the Webinars tab