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dc.date.accessioned 2019-11-12T14:03:54Z
dc.date.available 2019-11-12T14:03:54Z
dc.date.issued 2013
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/85382
dc.description.abstract The INTEGRAL and Swift hard X-ray surveys have identified a large number of new sources, among which many are proposed as Cataclysmic Variables (CVs). Here, we present the first detailed study of three X-ray-selected CVs, Swift J1907.3-2050, IGR J12123-5802 and IGR J19552+0044 based on XMM-Newton, Suzaku, Swift observations and groundbased optical and archival (near-IR) nIR/IR data. Swift J1907.3-2050 is highly variable from hours to months-years at all wavelengths. No coherent X-ray pulses are detected but rather transient features. The X-ray spectrum reveals a multitemperature optically thin plasma absorbed by complex neutral material and a soft blackbody component arising from a small area. These characteristics are remarkably similar to those observed inmagnetic CVs. A suprasolar abundance of nitrogen could arise from nuclear processed material from the donor star. Swift J1907.3-2050 could be a peculiar magnetic CV with the second longest (20.82 h) binary period. IGR J12123-5802 is variable in the X-rays on a time-scale of ≳ 7.6 h. No coherent pulsations are detected, but its spectral characteristics suggest that it could be a magnetic CV of the Intermediate Polar (IP) type. IGR J19552+0044 shows two X-ray periods, ~1.38 h and ~1.69 h and an X-ray spectrum characterized by a multitemperature plasma with little absorption. We derive a low accretion rate, consistent with a CV below the orbital period gap. Its peculiar nIR/IR spectrum suggests a contribution from cyclotron emission. It could either be a pre-polar or an IP with the lowest degree of asynchronism. en
dc.format.extent 2822-2834 es
dc.language en es
dc.subject X-rays: individual: IGR J19552+0044 es
dc.subject X-rays: individual: Swift J1212.3-5806 (also known as: IGR J12123-5802 and 1RXS J121222.7-580118) es
dc.subject X-rays: individual: Swift J1907.3-2050 (also known as: V1082 Sgr) es
dc.subject X-rays: individual: WISE J195512.47+004536.6 es
dc.title On the nature of the hard X-ray sources SWIFT J1907.3-2050, IGR J12123-5802 and IGR J19552+0044 en
dc.type Articulo es
sedici.identifier.other doi:10.1093/mnras/stt1434 es
sedici.identifier.other eid:2-s2.0-84885804485 es
sedici.identifier.issn 0035-8711 es
sedici.creator.person Bernardini, Federico es
sedici.creator.person Martino, D. de es
sedici.creator.person Mukai, K. es
sedici.creator.person Falanga, Maurizio es
sedici.creator.person Andruchow, Ileana es
sedici.creator.person Bonnet Bidaud, J. M. es
sedici.creator.person Masetti, N. es
sedici.creator.person Gonzalez Buitrago, D. H. es
sedici.creator.person Mouchet, M. es
sedici.creator.person Tovmassian, Gagik es
sedici.subject.materias Ciencias Astronómicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
mods.originInfo.place Instituto de Astrofísica de La Plata 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. 435, no. 4 es
sedici.rights.sherpa * Color: green * Pre-print del autor: si * Post-print del autor: si * Versión de editor/PDF:si * Condiciones: >>Pre-print si only be posted prior to acceptance >>Pre-print on author's personal website, employer website, free public server or pre-prints in subject area >>Pre-print must be accompanied by set statement (see link) >>Pre-print set statement must be amended upon publication (see policy) >>Publisher's version/PDF may be used >>Author's Post-print on Institutional repositories or Central repositories >>Publisher's version/PDF on Institutional repositories or Central repositories, with all rights reserved (see policy) >>Published source must be acknowledged >>Must link to publisher version >>Set phrase to accompany archived copy (see policy) * Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0035-8711/es/

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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)