NICER observation list: Target ID 662402
- Proposal Number = 6624
- Target ID = 662402
- Target Name = AT2019teq
- Proposal Title = A NICER TDE SNAPSHOT SURVEY: ACCRETION DISKS, ULTRA-FAST OUTFLOWS, AND THE NATURE OF THE UV/OPTICAL EMISSION
- PI = THOMAS WEVERS
- Proposal Category = OTHER
- Cycle number = 6
- Observation Type = NOR
Abstract
Tidal disruption events (TDEs) provide a dynamic view of supermassive black hole (SMBH) accretion. We propose a 3-epoch, 144 kilosecond snapshot survey of all newly discovered X-ray bright TDEs with NICER, in order to i) provide the first quantitative constraints on the ubiquity of ultra-fast outflows (UFOs), associated to near or super-Eddington accretion, and ii) study in detail the evolution of the accretion disk, enabled by state of the art relativistic thin accretion disk modeling. The proposed observations will constrain the temperatures and radii, as well as Eddington ratios and bolometric corrections of newly formed TDE disks. Combined with constraints on the presence of UFOs, this will help to elucidate the hotly contested nature of the poorly understood UV/optical emission.
| Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of Modules |
Number of Processing |
Status of Processing |
Date of Processing |
Public date |
| 6624020101 |
284.773 |
47.518 |
77.576 |
18.434 |
60254.0368 |
60254.8207 |
6224.0 |
51 |
4 |
VALIDATED |
60265.1 |
60268 |
| 6624020102 |
284.773 |
47.518 |
77.576 |
18.434 |
60255.2630 |
60255.2775 |
994.0 |
51 |
3 |
VALIDATED |
60265.2 |
60269 |
| 6624020103 |
284.773 |
47.519 |
77.576 |
18.434 |
60259.0090 |
60259.8569 |
6697.0 |
51 |
5 |
VALIDATED |
60271.9 |
60273 |
| 6624020104 |
284.772 |
47.522 |
77.579 |
18.436 |
60260.1088 |
60260.2440 |
1095.0 |
51 |
3 |
VALIDATED |
60272.0 |
60274 |
| 6624020105 |
284.774 |
47.518 |
77.576 |
18.434 |
60287.0569 |
60287.9697 |
1.0 |
36 |
4 |
VALIDATED |
60298.1 |
60301 |
| 6624020106 |
284.773 |
47.518 |
77.576 |
18.434 |
60288.0243 |
60288.2275 |
0.0 |
35 |
6 |
VALIDATED |
60310.6 |
60302 |
| 6624020107 |
284.772 |
47.517 |
77.575 |
18.435 |
60301.1750 |
60301.9572 |
5336.0 |
50 |
2 |
VALIDATED |
60313.6 |
60315 |
| 6624020108 |
284.771 |
47.517 |
77.574 |
18.435 |
60302.0137 |
60302.3444 |
2212.2 |
50 |
2 |
VALIDATED |
60313.6 |
60316 |