NICER observation list: Target ID 364801

Abstract

Determining the equation of state of dense matter is a key question of modern nuclear physics and astrophysics. To achieve this goal, several methods involving observations of neutron stars (NSs) exist. One consists in the X-ray spectral analyses of NSs in qLMXBs. When located inside globular clusters, the distances to these sources is known well enough (~5-10%) that the NS radius can be measured precisely. One source of systematic error, however, may stem from the presence of (unmodeled) hot spots at the surface of the NS. These would create period pulsations in the X-ray flux. We propose here NICER observation of the qLMXB in the GC M30 because it shows significant evidence for surface hot spots, and because it is the most promising GC qLMXB target for soft X-ray pulsations searches.
Obsid RA DEC l b Start End Exposure Number of
Modules
Number of
Processing
Status of
Processing
Date of
Processing
Public
date
3648010101 325.092 -23.180 27.179 -46.835 58992.0821 58992.8875 23152.0 52 3 VALIDATED 58996.6 59186
3648010102 325.092 -23.180 27.179 -46.835 58992.9851 58993.7844 20816.0 52 3 VALIDATED 58997.8 59187
3648010103 325.092 -23.180 27.179 -46.836 58994.0178 58994.9528 21885.0 52 3 VALIDATED 58998.9 59188
3648010104 325.092 -23.180 27.178 -46.835 58995.0504 58995.7213 14040.0 52 3 VALIDATED 58999.7 59189
3648010105 325.092 -23.180 27.178 -46.835 58996.0266 58996.9537 12730.0 52 3 VALIDATED 59000.7 59190
3648010106 325.092 -23.180 27.178 -46.835 58997.0016 58997.9220 21677.0 52 3 VALIDATED 59001.7 59191
3648010107 325.092 -23.181 27.178 -46.835 58998.0199 58998.9546 24328.0 52 3 VALIDATED 59002.6 59192
3648010108 325.092 -23.180 27.178 -46.835 58998.9961 58999.9870 25010.0 52 4 VALIDATED 59004.6 59193
3648010109 325.092 -23.180 27.179 -46.836 59000.0211 59000.9408 18629.0 52 3 VALIDATED 59004.7 59194
3648010110 325.092 -23.180 27.178 -46.836 59000.9896 59001.7299 9739.0 52 3 VALIDATED 59008.9 59195