X-ray Timing Observations of NGC 5408 X-1: Pinning Down the Mass

Details X-ray Timing Observations of NGC 5408 X-1: Pinning Down the Mass X-ray Timing Observations of NGC 5408 X-1: Pinning Down the Mass

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop...21s&link_type=abstract

XMM-Newton Proposal ID #05007501

Computer Science

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Ngc 5408 X-1, Xmm-Newton Proposal 05007501

Scientific paper

We propose EPIC observations of the ultraluminous X-ray source (ULX) in NGC 5408. Our AO4 pointing has revealed a wealth of new timing properties in this object. We have found the first quasiperiodic oscillation (QPO) (at 20 mHz) and power spectral break in this source. The power spectrum in the hard X-ray band (> 2 keV) shows a classic ``flat-topped noise with a break in the power law very close to the 20 mHz QPO. These timing signatures allow the first estimates of the mass of the ULX based on comparisons with similar features observed ubiquitously in Galactic black hole systems accreting at high rates. The energy spectrum reveals a ``cool (kT = 0.14 keV) disk component and a steep power law with index 2.56. Based on the correlation of power law index and QPO frequency

Affiliated with

Also associated with

No associations

Rating

X-ray Timing Observations of NGC 5408 X-1: Pinning Down the Mass 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 X-ray Timing Observations of NGC 5408 X-1: Pinning Down the Mass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray Timing Observations of NGC 5408 X-1: Pinning Down the Mass will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1022323