2015MNRAS.451.2835D

Query : 2015MNRAS.451.2835D

2015MNRAS.451.2835D - Mon. Not. R. Astron. Soc., 451, 2835-2839 (2015/August-2)

Spectral and timing characterization of the X-ray source 1RXS J194211.9+255552.

D'AI A., CUSUMANO G., LA PAROLA V. and SEGRETO A.

Abstract (from CDS):

We report on the first spectral and timing characterization of the transient X-ray source 1RXS J194211.9+255552 using all available data from the Swift X-ray satellite. We used 10 years of hard X-ray data from the Burst Alert Telescope (BAT) to characterize its long-term behaviour and to search for long periodicities, finding evidence for a periodic modulation at 166.5±0.5 d, that we interpret as the orbital period of the source. The folded light curve reveals that the X-ray emission is mostly concentrated in a restricted phase-interval and we propose to associate 1RXS J194211.9+255552 to the class of the Be X-ray binaries. This is also supported by the results of the spectral analysis, where we used the BAT data and three pointed Swift/XRT observations to characterize the X-ray broad-band spectral shape. We found mild spectral variability in soft X-rays that can be accounted for by a varying local neutral absorber, while the intrinsic emission is consistent with a hard power law multiplied by a high-energy exponential cut-off as typically observed in this class of systems.

Journal keyword(s): X-rays: binaries - X-rays: individual: 1RXS J194211.9+255552

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	1RXS J194211.9+255552	HXB	19 42 11.1676842792	+25 56 05.669055384		19.9		17.1		OB	8	0

Query : 2015MNRAS.451.2835D

Basic data :

1RXS J194211.9+255552 -- High Mass X-ray Binary

HXB (2012ATel), * (USNO,Gaia), X (1RXS,2SXPS), MIR (WISEA,WISE), LP? (2022yCat), NIR (2MASS)

19 42 11.1676842792 +25 56 05.669055384 (Optical) [ 0.0321 0.0477 90 ] A 2020yCat.1350....0G

19 40 06.6953439624 +25 48 57.775683095 [ 0.0321 0.0477 90 ]

061.5801314172400 +01.3548859124155 [ 0.0321 0.0477 90 ]

-1.953 -3.987 [0.043 0.059 90] A 2020yCat.1350....0G

0.0193 [0.0603] A 2020yCat.1350....0G

OB E 2012ATel.4209....1M

B 19.9 [~] E 2003AJ....125..984M

R 17.1 [~] E 2003AJ....125..984M

G 17.054539 [0.003963] C 2020yCat.1350....0G

K 12.79 [0.04] C 2003yCat.2246....0C

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`2MASS J19421116+2556056`	`TIC 216753934`	`WISE J194211.17+255605.2`
`1RXS J194211.9+255552`	`USNO-B1.0 1159-00412038`	`Gaia DR3 2021785421455305344`
`2SXPS J194211.1+255604`	`WISEA J194211.18+255605.3`	`Gaia DR2 2021785421455305344`

References (8 between 1850 and 2026) (Total 8)
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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`2MASS J19421116+2556056`	`1RXS J194211.9+255552`	`USNO-B1.0 1159-00412038`	`WISEA J194211.18+255605.3`	`WISE J194211.17+255605.2`
`Gaia DR3 2021785421455305344`	`Gaia DR2 2021785421455305344`

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