A Test of the Nature of the Fe K Line in the Neutron Star Low-mass X-ray Binary Serpens X-1

@article{Chiang2015ATO,
  title={A Test of the Nature of the Fe K Line in the Neutron Star Low-mass X-ray Binary Serpens X-1},
  author={C-Y. Chiang and Edward M. Cackett and Jon M. Miller and Didier Barret and Andrew C. Fabian and A. D’A{\`i} and Michael L. Parker and Sudip Bhattacharyya and L. Burderi and Tiziana di Salvo and Elise Egron and Jeroen Homan and R. Iaria and Dacheng Lin and M. Coleman Miller},
  journal={The Astrophysical Journal},
  year={2015},
  volume={821},
  pages={105}
}
Broad Fe K emission lines have been widely observed in the X-ray spectra of black hole systems, and in neutron star systems as well. The intrinsically narrow Fe K fluorescent line is generally believed to be part of the reflection spectrum originating in an illuminated accretion disk, and broadened by strong relativistic effects. However, the nature of the lines in neutron star LMXBs has been under debate. We therefore obtained the longest, high-resolution X-ray spectrum of a neutron star LMXB… Expand

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References

SHOWING 1-10 OF 75 REFERENCES
A SEARCH FOR IRON EMISSION LINES IN THE CHANDRA X-RAY SPECTRA OF NEUTRON STAR LOW-MASS X-RAY BINARIES
While iron emission lines are well studied in black hole systems, both in X-ray binaries and active galactic nuclei, there has been less of a focus on these lines in neutron star low-mass X-rayExpand
A relativistic iron emission line from the neutron star low-mass X-ray binary GX 3+1
We present the results of a spectroscopic study of the Fe Kα emission of the persistent neutron-star atoll low-mass X-ray binary and type I X-ray burster GX 3+1 with the EPIC-PN on board XMM-Newton.Expand
Evidence of a Broad Relativistic Iron Line from the Neutron Star Low-Mass X-Ray Binary Serpens X-1
We report on an analysis of XMM-Newton data from the neutron star low-mass X-ray binary (LMXB) Serpens X-1 (Ser X-1). Spectral analysis of EPIC PN data indicates that the previously known broad ironExpand
A COMPARISON OF BROAD IRON EMISSION LINES IN ARCHIVAL DATA OF NEUTRON STAR LOW-MASS X-RAY BINARIES
Relativistic X-ray disklines have been found in multiple neutron star low-mass X-ray binaries, in close analogy with black holes across the mass scale. These lines have tremendous diagnostic powerExpand
Broad line emission from iron K- and L-shell transitions in the active galaxy 1H 0707-495
TLDR
The combination of spectral and timing data on 1H 0707-495 provides strong evidence that the authors are witnessing emission from matter within a gravitational radius, or a fraction of a light minute, from the event horizon of a rapidly spinning, massive black hole. Expand
RELATIVISTIC LINES AND REFLECTION FROM THE INNER ACCRETION DISKS AROUND NEUTRON STARS
A number of neutron star low-mass X-ray binaries (LMXBs) have recently been discovered to show broad, asymmetric Fe K emission lines in their X-ray spectra. These lines are generally thought to beExpand
Broad iron line in the fast spinning neutron-star system 4U 1636-53
We analysed the X-ray spectra of six observations, simultaneously taken with XMM-Newton and Rossi X-ray Timing Explorer (RXTE), of the neutron-star low-mass X-ray binary 4U 1636-53. The observationsExpand
Reflection spectra from an accretion disc illuminated by a neutron star X-ray burst
Recent time-resolved X-ray spectra of a neutron star undergoing a superburst revealed an Fe Ka line and edge consistent with reprocessing from the surrounding accretion disc. Here, we present modelsExpand
Relativistic Iron Emission Lines in Neutron Star Low-Mass X-Ray Binaries as Probes of Neutron Star Radii
Using Suzaku observations of three neutron star low-mass X-ray binaries ( Ser X-1, 4U 1820-30, and GX 349+2) we have found broad, asymmetric, relativistic Fe K emission lines in all three objects.Expand
Constraints on the Neutron Star and Inner Accretion Flow in Serpens X-1 Using NuSTAR
We report on an observation of the neutron star low-mass X-ray binary Serpens X-1, made with NuSTAR. The extraordinary sensitivity afforded by NuSTAR facilitated the detection of a clear, robust,Expand
...
1
2
3
4
5
...