The nature of quiescent emission in the neutron star Cen X-4

Details The nature of quiescent emission in the neutron star Cen X-4 The nature of quiescent emission in the neutron star Cen X-4

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop..157c&link_type=abstract

XMM-Newton Proposal ID #06544701

Computer Science

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Cen X-4

Scientific paper

The neutron star LMXB, Cen X-4, has been in quiescence since 1979. Its quiescent X-ray emission consists of both a thermal and power-law component, with variability observed on timescales as short as hundreds of seconds and as long as years. Yet, this variability is not understood. We recently found Cen X- 4 in a historically low-state, over 5 times fainter than before. Such a difference requires the thermal component to vary. This poses a big problem for using thermal emission to measure neutron star radii and constrain the dense matter equation of state. To investigate the nature of this variability and the emission mechanisms from X-rays through to the optical, we propose four, 12 ks observations of Cen X-4 to obtain good X-ray spectra and accurate photometry in 5 optical/UV filters.

Affiliated with

Also associated with

No associations

Rating

The nature of quiescent emission in the neutron star Cen X-4 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 The nature of quiescent emission in the neutron star Cen X-4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The nature of quiescent emission in the neutron star Cen X-4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1429368