2024MNRAS.529.2234V

Query : 2024MNRAS.529.2234V

2024MNRAS.529.2234V - Mon. Not. R. Astron. Soc., 529, 2234-2241 (2024/April-2)

Spectral and type I X-ray burst studies of 4U 1702-429 using AstroSat observations.

VARUN M., THOMAS N.T., GUDENNAVAR S.B. and BUBBLY S.G.

Abstract (from CDS):

4U 1702-429, an atoll-type neutron star low-mass X-ray binary, was observed twice by the AstroSat/Soft X-ray Telescope (SXT) and Large Area X-ray Proportional Counters (LAXPC-20) on 2018 April 27 and 2019 August 8. Persistent emission spectra of the source were well fitted with the model combination - constant × tbabs (thcomp × diskbb+powerlaw). The parameters obtained from the spectral analysis revealed the source to be in a hard spectral state during the observations. Time-resolved spectral analyses were performed on the three type I X-ray bursts detected from the source. Burst analysis showed that the source underwent a photospheric radius expansion. Consequently, the radius of the neutron star and distance to the source (with isotropic and anisotropic burst emission) were obtained as 12.65$\substack{+0.90\\-0.86}$ km and 6.92$\substack{+0.16\\-0.09}$ and 8.43$\substack{+0.20\\-0.10}$ kpc, respectively.

Abstract Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): accretion, accretion discs - stars: neutron - X-rays: binaries - X-rays: bursts - X-rays: individual: 4U 1702-429

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 X Ara X-1 LXB 17 06 15.2 -43 02 11           ~ 296 1

Query : 2024MNRAS.529.2234V

Basic data :
X Ara X-1 -- Low Mass X-ray Binary
Other object types: otypes_help 		X (2022MNRAS,X,...), LXB (2013ApJS), gam (INTEGRAL1,INTREF), N*? (2007ApJS)
ICRS coord. (ep=J2000) : 		17 06 15.2 -43 02 11 (X-ray) [ 5000 5000 90 ] D 2022A&A...661A..38P
FK4 coord. (ep=B1950 eq=1950) : 		17 02 40.9 -42 58 10 [ 5000 5000 90 ]
Gal coord. (ep=J2000) : 		343.8861 -01.3184 [ 5000 5000 90 ]
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Identifiers (24) :
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X Ara X-1 INTEGRAL1 41 SRGA J170615.2-430211 4U 1702-429
EXO 1703-431 INTREF 745 SWIFT J1706.2-4303 4U 1702-42
GPS 1703-429 1M 1702-429 SWIFT J1706.2-4302 XB 1702-429
GX -14.1 PBC J1706.2-4302 2U 1704-42 [BM83] X1702-429
GX 340-00 1RXS J170618.4-430253 3U 1702-42 [KRL2007b] 218
H 1702-429 2S 1702-429 4U 1702-43 [OKM2018] SWIFT J1706.2-4303

References (296 between 1850 and 2026) (Total 296)
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   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : X Ara X-1

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1RXS J170618.4-430253

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