2001A&A...371.1018I


C.D.S. - SIMBAD4 rel 1.7 - 2019.09.21CEST09:39:54

2001A&A...371.1018I - Astronomy and Astrophysics, volume 371, 1018-1023 (2001/6-1)

The identification of the optical/IR counterpart of the 29.5-s transient X-ray pulsar GS 1843+009.

ISRAEL G.L., NEGUERUELA I., CAMPANA S., COVINO S., DI PAOLA A., MAXWELL D.H., NORTON A.J., SPEZIALI R., VERRECCHIA F. and STELLA L.

Abstract (from CDS):

We report on the identification of the optical/IR counterpart of the 29.5-s transient X-ray pulsar GS 1843+009. We re-analysed an archival ROSAT HRI observation of GS 1843+009 obtaining a new refined position. The optical and IR follow-up observations carried out for the new error circle allowed us to find a relatively faint (V=20.9) and variable early type reddened star (V-R=2.1). The optical spectra show the Balmer and Paschen series in emission, while the IR observations confirm the presence of a flux excess (H=13.2, J-H=0.54), suggesting that the star is surrounded by a circumstellar envelope. Spectroscopic and photometric data together indicate a B0-B2IV-Ve spectral-type star located at a distance of ≥10kpc confirming the Be-star/X-ray binary nature of GS 1843+009.

Abstract Copyright:

Journal keyword(s): stars: individual: - GS 1843+009 - 1BMWJ184536.8+005148 - binaries: general - stars: pulsars: general - stars: emission-line, Be - X-rays: stars

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 Ginga 0834-430 HXB 08 35 55 -43 11.1     20.4     B0-2III-Ve 88 0
2 [KRL2007b] 314 HXB 18 20 29.5 -14 34 24           O9.5-B0Ve 55 1
3 2MASS J18453684+0051474 HXB 18 45 36.8356137141 +00 51 47.438374606     20.6     B0-2IV-Ve 103 0
4 XTE J1946+274 HXB 19 45 39.3569004855 +27 21 55.502556930   18.76 16.92 15.62 14.38 B0-1IV-Ve 98 0

    Equat.    Gal    SGal    Ecl

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2019.09.21-09:39:54

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