NICER observation list: Target ID 256001
- Proposal Number = 2560
- Target ID = 256001
- Target Name = 4U_1812-12
- Proposal Title = SEARCHING FOR ABSORPTION EDGES IN THE SPECTRUM OF A BRIGHT EDDINGTON-LIMITED X-RAY BURST
- PI = JEAN IN 'T ZAND
- Proposal Category = X-RAY PULSARS AND NEUTRON STARS
- Cycle number = 2
- Observation Type = NOR
Abstract
Our plan is to detect for the first time with a high-sensitive instrument a thermonuclear X-ray burst from the nearby ultracompact X-ray binary 4U 1812-12, from which it is known that all bursts are Eddington-limited and have a high level of convection to dredge up heavy ashes, and search for absorption edges in the burst spectrum. As a bonus, we can search for burst oscillations for the first time in this persistent burster.
| Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of modules |
Status of Processing |
Date of Processing |
Public date |
| 2560010101 |
273.776 |
-12.096 |
18.03314 |
2.39773 |
58548.8215 |
58548.9755 |
4269.00000 |
52 |
VALIDATED |
58559.0 |
58682 |
| 2560010102 |
273.776 |
-12.096 |
18.03309 |
2.39770 |
58549.0186 |
58549.9419 |
16126.00000 |
52 |
VALIDATED |
58559.0 |
58683 |
| 2560010103 |
273.776 |
-12.096 |
18.03324 |
2.39778 |
58549.9837 |
58550.9727 |
18307.00000 |
52 |
VALIDATED |
58559.0 |
58684 |
| 2560010104 |
273.776 |
-12.096 |
18.03358 |
2.39764 |
58551.0138 |
58551.9229 |
18863.00000 |
52 |
VALIDATED |
58559.0 |
58685 |
| 2560010201 |
273.776 |
-12.097 |
18.03259 |
2.39743 |
58658.9606 |
58658.9706 |
761.00000 |
52 |
VALIDATED |
58662.9 |
58792 |
| 2560010202 |
273.776 |
-12.097 |
18.03251 |
2.39750 |
58659.0130 |
58659.9216 |
6171.00000 |
52 |
VALIDATED |
58664.8 |
58793 |
| 2560010203 |
273.776 |
-12.097 |
18.03245 |
2.39758 |
58660.1178 |
58660.9692 |
17011.00000 |
52 |
VALIDATED |
58664.8 |
58794 |
| 2560010204 |
273.776 |
-12.097 |
18.03254 |
2.39752 |
58661.0778 |
58661.9363 |
17050.00000 |
52 |
VALIDATED |
58665.6 |
58795 |
| 2560010205 |
273.776 |
-12.097 |
18.03254 |
2.39752 |
58661.9717 |
58662.2396 |
5206.00000 |
52 |
VALIDATED |
58666.6 |
58796 |