2020MNRAS.497.2893W

Query : 2020MNRAS.497.2893W

2020MNRAS.497.2893W - Mon. Not. R. Astron. Soc., 497, 2893-2898 (2020/September-3)

The parallel tracks of kHz QPOs in low-mass X-ray binary 4U 1728-34: explorer of the bimodal accretion modes.

WANG D.-H. and ZHANG C.-M.

Abstract (from CDS):

Parallel tracks in the relation between the lower kilohertz quasi-periodic oscillation (kHz QPO) frequency ν1 and the X-ray intensity I have been observed in the neutron star low-mass X-ray binary (NS-LMXB) 4U 1728-34, and we try to ascribe these phenomena to the bimodal accretion modes, i.e. the disc accretion and radial accretion. For the source with one constant radial accretion rate {dot}M_ r_, as the increase of the disc accretion rate {dot}M_ d_, the NS magnetosphere-disc radius can shrink from ∼18 to ∼16 km, while ν1 increases from ∼670 to ∼870 Hz. Then, due to the increase of the kHz QPO frequency and total X-ray intensity Itot, the source will trace out an oblique track in ν1-I relation. While, if the source enters another constant radial accretion rate due to the variation of the accretion environment, the increase of the disc accretion rate can arise another parallel track in ν1-I relation. Finally, the reliability of the theoretical assumptions, the variability of the accretion radius and accretion rate, as well as the dependence of the two accretion modes, are also investigated and discussed.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - stars: individual: 4U 1728-34 - stars: neutron - X-rays: binaries

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Slow Burster LXB 17 31 58.0 -33 49 58     15.50     ~ 865 1

Query : 2020MNRAS.497.2893W

Basic data :
NAME Slow Burster -- Low Mass X-ray Binary
Other object types: otypes_help 		X (2022MNRAS,4U,...), LXB (2013ApJS), gam (INTEGRAL1,INTREF), N*? (2007ApJS), V* (2012A&A)
ICRS coord. (ep=J2000) : 		17 31 58.0 -33 49 58 (X-ray) [ 5000 5000 90 ] D 2022A&A...661A..38P
FK4 coord. (ep=B1950 eq=1950) : 		17 28 39.8 -33 47 49 [ 5000 5000 90 ]
Gal coord. (ep=J2000) : 		354.3049 -00.1509 [ 5000 5000 90 ]
Fluxes (1) :
V 15.50 [0.3] D 2012A&A...548A..79A
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Identifiers (28) :
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4U 1728-337 1H 1728-334 PBC J1731.9-3349 3U 1727-33
3A 1728-337 H 1728-337 1RXS J173157.7-335007 4U 1728-34
2E 3916 INTEGRAL1 58 2S 1728-337 4U 1728-33
2E 1728.6-3347 INTREF 786 SRGA J173158.0-334958 XB 1728-337
GPS 1728-336 1M 1727-337 SWIFT J1732.1-3349 XB 1728-34
GX 354-00 MXB 1728-34 SWIFT J1731.9-3349 [BM83] X1728-337
GX 354+00 NAME Slow Burster 2U 1726-33 [KRL2007b] 244

References (865 between 1850 and 2026) (Total 865)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Distance : 1   

   

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External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : NAME Slow Burster

Link by name to the catalogue in VizieR :

2E 3916 1RXS J173157.7-335007

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