Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2009-03-27
Astrophys.J.699:1418-1422,2009
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
Accepted for publication in ApJ. 6 pages, 1 figure
Scientific paper
10.1088/0004-637X/699/2/1418
This paper presents the analysis of candidate quiescent low mass xray binarie (qLMXBs) observed during a short Chandra/ACIS observation of the globular cluster (GC) NGC 6304. Two out of the three candidate qLMXBs of this cluster, XMMU 171433-292747 and XMMU 171421-292917, lie within the field of view. This permits comparison with the discovery observation of these sources. The one in the GC core -- XMMU 171433-292747 -- is spatially resolved into two separate X-ray sources, one of which is consistent with a pure H-atmosphere qLMXB, and the other is an X-ray power-law spectrum source. These two spectral components separately account for those observed from XMMU 171433-292747 in its discovery observation. We find that the observed flux and spectral parameters of the H-atmosphere spectral components are consistent with the previous observation, as expected from a qLMXB powered by deep crustal heating. XMMU 171421-292917 also has neutron star atmosphere spectral parameters consistent with those in the XMM-Newton observation and the observed flux has decreased by a factor 0.54^{+0.30}_{-0.24}.
Brown Edward F.
Guillot Sebastien
Pavlov George G.
Rutledge Robert E.
Zavlin Vyacheslav E.
No associations
LandOfFree
Chandra Observation of Quiescent Low-Mass X-ray Binaries in the Globular Cluster NGC 6304 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Chandra Observation of Quiescent Low-Mass X-ray Binaries in the Globular Cluster NGC 6304, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chandra Observation of Quiescent Low-Mass X-ray Binaries in the Globular Cluster NGC 6304 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-21916