About: Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries

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About: Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this paper, we address the general applicability of the method pioneered by Zhang, Liao & Yao in which the motion of the compact object can be tracked using wind X-ray absorption lines. We present the velocity measurements of the thermal wind lines observed in the X-ray spectrum of a few low-mass X-ray binaries: GX 13+1, H 1743-322, GRO J1655-40 and GRS 1915+105. We find that the variability in the velocity of the wind lines in about all of the sources is larger than conceivable radial velocity variations of the compact object. GX 13+1 provides a potential exception, although it would require the red giant star to be massive with a mass of approximate to 5-6 M-circle dot. We conclude that the variability of the source luminosity occurring on a time-scale of days/months can affect the outflow properties making it difficult to track the orbital motion of the compact object using current observations. Given the intrinsic variability of the outflows we suggest that low-mass X-ray binaries showing stable coronae instead of an outflow (e. g. 4U 1254-69, MXB 1659-29, 4U 1624-49) could be more suitable targets for tracking the orbital motion of the compact object. In this paper, we address the general applicability of the method pioneered by Zhang, Liao & Yao in which the motion of the compact object can be tracked using wind X-ray absorption lines. We present the velocity measurements of the thermal wind lines observed in the X-ray spectrum of a few low-mass X-ray binaries: GX 13+1, H 1743-322, GRO J1655-40 and GRS 1915+105. We find that the variability in the velocity of the wind lines in about all of the sources is larger than conceivable radial velocity variations of the compact object. GX 13+1 provides a potential exception, although it would require the red giant star to be massive with a mass of approximate to 5-6 M-circle dot. We conclude that the variability of the source luminosity occurring on a time-scale of days/months can affect the outflow properties making it difficult to track the orbital motion of the compact object using current observations. Given the intrinsic variability of the outflows we suggest that low-mass X-ray binaries showing stable coronae instead of an outflow (e. g. 4U 1254-69, MXB 1659-29, 4U 1624-49) could be more suitable targets for tracking the orbital motion of the compact object. (en)
Title	Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries (en)
skos:prefLabel	Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries (en)
skos:notation	RIV/68407700:21230/14:00225525!RIV15-GA0-21230___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA13-33324S), P(GC13-39464J)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Miškovičová, Ivica
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	52992
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/14:00225525
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	accretion; accretion discs; X-rays: binaries; X-rays: individual: GX 13+1 (en)
http://linked.open.../riv/klicoveSlovo	X-rays: binaries accretion accretion discs X-rays: individual: GX 13+1
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[FB6B47D32C41]
http://linked.open...i/riv/nazevZdroje	Monthly Notices of the Royal Astronomical Society
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Lobster Eye X-Ray Monitor Digitizing Astronomical Plate Archives and Investigation of Celestial Sources in Digitized Plate Archives
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	438
http://linked.open...iv/tvurceVysledku	Jonker, P. G. Madej, O.K. Miškovičová, Ivica Trigo, M. D.
http://linked.open...ain/vavai/riv/wos	000330457100031
issn	0035-8711
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1093/mnras/stt2119
http://localhost/t...ganizacniJednotka	21230

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