NICER observation list: Target ID 751201
- Proposal Number = 7512
- Target ID = 751201
- Target Name = IGR_J17511-3057
- Proposal Title = MONITORING ACCRETING MILLISECOND X-RAY PULSARS IN OUTBURST
- PI = TOD STROHMAYER
- Proposal Category = X-RAY BINARIES
- Cycle number = 7
- Observation Type = NOR
Abstract
Accreting millisecond X-ray pulsars (AMXPs) are tremendously useful laboratories for the study of neutron stars and accretion physics. These low-mass X-ray binaries (LMXBs) are typically transient systems, showing outbursts of X-ray emission that last from between a few days to a few weeks, while often remaining dormant for years to decades in between. We propose a 60 ks monitoring campaign of the next AMXP outburst, from either a known or new system. These data will enable precise measurements of the neutron star spin frequency and binary orbit ephemeris, and, for known systems, also probe the evolution in these quantities. This program takes advantage of NICER's unique capabilities for fast timing and flexible monitoring of these transient systems.
| Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of Modules |
Number of Processing |
Status of Processing |
Date of Processing |
Public date |
| 7512010101 |
267.787 |
-30.957 |
358.886 |
-2.068 |
60718.0254 |
60718.9981 |
4578.0 |
50 |
7 |
VALIDATED |
60746.0 |
60732 |
| 7512010102 |
267.785 |
-30.962 |
358.882 |
-2.069 |
60719.0592 |
60719.9683 |
1194.0 |
50 |
4 |
VALIDATED |
60729.9 |
60733 |
| 7512010103 |
267.786 |
-30.961 |
358.882 |
-2.069 |
60720.1571 |
60720.5484 |
493.0 |
50 |
4 |
VALIDATED |
60731.2 |
60734 |
| 7512010104 |
267.786 |
-30.962 |
358.882 |
-2.070 |
60748.4461 |
60748.7773 |
0.0 |
49 |
5 |
VALIDATED |
60758.7 |
60762 |
| 7512010105 |
267.785 |
-30.962 |
358.881 |
-2.069 |
60749.7177 |
60749.8762 |
1951.0 |
50 |
5 |
VALIDATED |
60759.7 |
60763 |
| 7512010106 |
267.786 |
-30.962 |
358.882 |
-2.070 |
60750.3160 |
60750.9083 |
0.0 |
50 |
6 |
VALIDATED |
60760.5 |
60764 |
| 7512010107 |
267.786 |
-30.962 |
358.882 |
-2.070 |
60751.0898 |
60751.8116 |
0.0 |
50 |
7 |
VALIDATED |
60761.5 |
60765 |
| 7512010108 |
267.785 |
-30.962 |
358.881 |
-2.069 |
60752.0583 |
60752.0694 |
0.0 |
50 |
6 |
VALIDATED |
60761.6 |
60766 |