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dc.date.accessioned | 2021-09-24T16:53:51Z | |
dc.date.available | 2021-09-24T16:53:51Z | |
dc.date.issued | 2020-08-06 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/125586 | |
dc.description.abstract | We find soft X-ray emission lines from the X-ray binary Swift J1858.6–0814 in data from XMM–NewtonReflection Grating Spectrometer (RGS): N VII, O VII, and O VIII, as well as notable residuals short of a detection at Ne IX and other higher ionization transitions. These could be associated with the disc atmosphere, as in accretion disc corona sources, or with a wind, as has been detected in Swift J1858.6–0814 in emission lines at optical wavelengths. Indeed, the N VII line is redshifted, consistent with being the emitting component of a P-Cygni profile. We find that the emitting plasma has an ionization parameter log (ξ) = 1.35 ± 0.2 and a density n > 1.5 × 10¹¹ cm⁻³. From this, we infer that the emitting plasma must be within 1013 cm of the ionizing source, ∼5 × 10⁷ rg for a 1.4 M⊙ neutron star, and from the line width that it is at least 10⁴ rg away [2 × 10⁹(M/1.4 M⊙) cm]. We compare this with known classes of emission-line regions in other X-ray binaries and active galactic nuclei. | en |
dc.format.extent | 68-76 | es |
dc.language | en | es |
dc.subject | Accretion | es |
dc.subject | Accretion discs | es |
dc.subject | Black hole physics | es |
dc.subject | Stars: neutron | es |
dc.subject | X-rays: binaries | es |
dc.title | Soft X-ray emission lines in the X-ray binary Swift J1858.6-0814 observed with XMM-Newton-RGS: Disc atmosphere or wind? | en |
dc.type | Articulo | es |
sedici.identifier.other | arXiv:2007.14407 | es |
sedici.identifier.other | doi:10.1093/mnras/staa2258 | es |
sedici.identifier.issn | 0035-8711 | es |
sedici.identifier.issn | 1365-2966 | es |
sedici.creator.person | Buisson, D. J. K. | es |
sedici.creator.person | Altamirano, Diego | es |
sedici.creator.person | Diaz Trigo, M. | es |
sedici.creator.person | Mendez, Mariano | es |
sedici.creator.person | Padilla, M. Armas | es |
sedici.creator.person | Castro Segura, N. | es |
sedici.creator.person | Degenaar, Nathalie | es |
sedici.creator.person | van den Eijnden, J. | es |
sedici.creator.person | Fogantini, Federico Adrián | es |
sedici.creator.person | Gandhi, Poshak | es |
sedici.creator.person | Knigge, Christian | es |
sedici.creator.person | Muñoz-Darias, T. | es |
sedici.creator.person | Arabaci, M. Ozbey | es |
sedici.creator.person | Vincentelli, F. M. | es |
sedici.subject.materias | Ciencias Astronómicas | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Astronómicas y Geofísicas | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | Monthly Notices of the Royal Astronomical Society | es |
sedici.relation.journalVolumeAndIssue | vol. 498, no. 1 | es |