0
Assigned ID: 4923
----- Attempting Submission 1 (Wed Nov 15 21:48:39 GMT 2023) -----
HST Phase I Proposal 4923 successfully submitted.
Receipt: # 4923-1
----- Attempting Submission 2 (Thu Nov 16 00:17:38 GMT 2023) -----
0
----- Attempting Submission 1 (Thu Jan 25 17:23:25 GMT 2024) -----
HST Phase II Proposal 17605 successfully submitted.
Receipt: # 17605-1
----- Attempting Submission 2 (Thu Jan 25 19:08:34 GMT 2024) -----
Search for C, N, O in a long-period transiting warm Saturn
The recently discovered long-period warm Saturn around a bright host star offers a rare opportunity for atmosphere characterization. It has a low equilibrium temperature of ~350K and a 104-day orbital period. Those properties make it more analogous to solar system giants than to typical Hot Jupiters. We propose to measure its transmission spectrum with WFC3/G141 aiming to detect CH4, NH3, and H2O which are the main C, N, and O-bearing molecules for hydrogen-dominated atmospheres at this temperature.
We request that two 5-orbit segments be performed consecutively. Due to problems encountered with APT when trying to specify a single 10-orbit visit, for the purpose of Phase 2 we have split the 10-orbit visit into two 5-orbit "segment1, segment2". We request that these visits be performed back-to-back, to achieve a single 10-orbit visit:
i.e. visit1 = "visit1_segment1" + "visit1_segment2"
Guangwei Fu has extensive experience with JWST and HST observations of exoplanet atmospheres.
Michael Line is an expert in atmospheric modeling and retrieval analyses as well as observations of transiting planet atmospheres with high resolution ground-based spectroscopy.
David Sing has extensive experience with JWST and HST observations of exoplanet atmospheres.
Exoplanets and Exoplanet Formation
3
false
false
false
false
false
true
false
false
AVAILABLE
EXT-STAR
EXTRA-SOLAR PLANET
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
J2000
WFC3/IR
Spectroscopic
No
No
G141
The scheduling data was generated by CASM 32.0.
CASM was run in Phase II mode.
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