NICER observation list: Target ID 855520
- Proposal Number = 8555
- Target ID = 855520
- Target Name = A3-DOY92-09:18
- Proposal Title = EXPLORING SOLAR-WIND DYNAMICS THROUGH COMETARY INTERACTIONS DURING SOLAR MAXIMUM: A COMPARATIVE STUDY OF C/2023 A3 (TSUC
- PI = DENNIS BODEWITS
- Proposal Category = SOLAR SYSTEM OBJECTS
- Cycle number = 8
- Observation Type = NOR
Abstract
We request 200 ks of NICER observing time to study the interaction between the solar wind and two bright comets, C/2023 A3 (Tsuchinshan-ATLAS) and P/2010 H2 (Vales). Utilizing NICER's agility and sensitivity, we aim to compare charge-exchange spectra arising from the comets interaction with varied solar-wind states. Simultaneous observations of both comets at distinct solar latitudes allow us to compare spectra from differing solar-wind conditions. This offers a unique opportunity to map the solar wind during solar maximum and explore charge-exchange reactions in astrophysical plasmas spanning a 0.1 10 MK temperature range. By comparing the cometary spectra we will investigate the source of unexplained emission features between 1-2 keV.
| Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of
Modules |
Number of
Processing |
Status of
Processing |
Date of
Processing |
Public
date |
| 8555200101 |
150.573 |
9.148 |
229.017 |
46.264 |
60765.3972 |
60765.4007 |
231.0 |
50 |
5 |
VALIDATED |
60776.8 |
60959 |
| 8555200301 |
150.573 |
9.148 |
229.017 |
46.263 |
60769.3935 |
60769.4023 |
702.0 |
50 |
4 |
VALIDATED |
60779.9 |
60963 |