Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24441
Title: | NuSTAR and XMM-Newton Observations of the Neutron Star X-Ray Binary 1RXS J180408.9-34205 | Authors: | Ludlam, R. M. Miller, J. M. Cackett, E. M. Fabian, A. C. BACHETTI, Matteo Parker, M. L. Tomsick, J. A. Barret, D. NATALUCCI, LORENZO Rana, V. Harrison, F. A. |
Issue Date: | 2016 | Journal: | THE ASTROPHYSICAL JOURNAL | Number: | 824 | Issue: | 1 | First Page: | 37 | Abstract: | We report on observations of the neutron star (NS) residing in the low-mass X-ray binary 1RXS J180408.9-34205 taken 2015 March by NuSTAR and XMM-Newton while the source was in the hard spectral state. We find multiple reflection features (Fe {{{K}}}<SUB>α </SUB> detected with NuSTAR; N vii, O vii, and O viii detected in the RGS) from different ionization zones. Through joint fits using the self-consistent relativistic reflection model relxill, we determine the inner radius to be ≤11.1 R <SUB> g </SUB>. For a 1.4 {M}<SUB>☉ </SUB> NS with a spin of {a}<SUB>\ast </SUB>=0, this is an inner disk radius of ≤slant 22.2 km. We find the inclination of the system to be between 18° and 29°. If the disk is truncated at a radius greater than the NS radius, it could be truncated by a boundary layer on the NS surface. It is also possible that the disk is truncated at the magnetospheric radius; conservative estimates would then imply B≤slant (0.3{--}1.0)× {10}<SUP>9</SUP> G at the magnetic poles, though coherent pulsations have not been detected and the source is not identified as a pulsar. | URI: | http://hdl.handle.net/20.500.12386/24441 | URL: | https://iopscience.iop.org/article/10.3847/0004-637X/824/1/37/meta | ISSN: | 0004-637X | DOI: | 10.3847/0004-637X/824/1/37 | Bibcode ADS: | 2016ApJ...824...37L | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Ludlam_2016_ApJ_824_37.pdf | PDF editoriale | 635.84 kB | Adobe PDF | View/Open |
Page view(s)
56
checked on Apr 19, 2024
Download(s)
12
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.