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0
Assigned ID: 2562
----- Attempting Submission 1 (Wed Sep 15 12:18:26 GMT 2021) -----
Joint Chandra/HST
FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser
TRIGGERING VISIT 06
-1703038639
----- Attempting Submission 1 (Tue Oct 12 18:02:35 GMT 2021) -----
HST Phase II Proposal 16846 successfully submitted.
Receipt: # 16846-1
----- Attempting Submission 2 (Thu Oct 14 16:23:33 GMT 2021) -----
HST Phase II Proposal 16846 successfully submitted.
Receipt: # 16846-2
----- Attempting Submission 3 (Sat Jan 01 09:37:32 GMT 2022) -----
----- Attempting Submission 4 (Sat Jan 01 16:19:53 GMT 2022) -----
----- Attempting Submission 5 (Mon Mar 28 22:24:29 GMT 2022) -----
----- Attempting Submission 6 (Wed Apr 13 14:07:46 GMT 2022) -----
The warning refers to a visit already completed.
Identifying the fingerprints of r-process heavy metals in a short GRB
The afterglow of some short GRBs displays a late-time rebrightening, visible in the near-infrared a few days after the burst. This late-time bump could be explained as kilonova emission, providing a direct link to neutron star mergers, and a compelling proof for the synthesis of heavy nuclei through the rapid neutron capture process (r-process). We propose a multi-wavelength follow-up campaign of a nearby (z<0.4) short GRB in order to detect the expected kilonova bump and constrain its properties. Multi-band observations, and in particular X-rays, are critical to pin down the nature of the observed rebrightening, and to distinguish it from the standard afterglow emission.
The main goal of this proposal is to identify a nearby kilonova and map its color evolution.
We will image the field using the WFC3/UVIS and IR cameras. The choice of filters is preliminary and will be adjusted at the time of the trigger. The Phase2 file contains a few configurations which we consider more likely to be used, based on our previous experience.
In the case of a nearby event, we will perform IR spectroscopic observations with both grisms G102 and G141.
n/a
Stellar Physics and Stellar Types
3
false
false
false
false
false
false
false
SUPPORTED
STAR
GAMMA RAY BURSTER
NO
J2000
STAR
EJECTA
NEUTRON STAR
Redshift z<0.4
WFC3/UVIS
Imaging
No
No
F606W
WFC3/IR
Spectroscopic
No
No
G102
WFC3/IR
Spectroscopic
No
No
G141
WFC3/IR
Imaging
No
No
F110W
WFC3/IR
Imaging
No
No
F160W
WFC3/UVIS
Imaging
No
No
F606W
WFC3/IR
Spectroscopic
No
No
G102
WFC3/IR
Spectroscopic
No
No
G141
WFC3/IR
Imaging
No
No
F110W
WFC3/IR
Imaging
No
No
F160W
WFC3/UVIS
Imaging
No
No
F606W
WFC3/IR
Spectroscopic
No
No
G102
WFC3/IR
Spectroscopic
No
No
G141
WFC3/IR
Imaging
No
No
F110W
WFC3/IR
Imaging
No
No
F160W
POS-TARG
DITHER
0.173
LINE
0.112
false
false
81.785
4
23.884
WFC3-UVIS-DITHER-BOX
1
false
POS-TARG
DITHER
0.572
LINE
0.365
false
false
74.653
4
18.528
WFC3-IR-DITHER-BOX-MIN
2
false
POS-TARG
DITHER
1.56
LINE
false
false
3
41.788
WFC3-IR-DITHER-LINE-3PT
3
false
POS-TARG
DITHER
0.605
LINE
false
false
2
41.788
LINE
4
false
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