2009A&A...507..705B


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.06CEST17:03:12

2009A&A...507..705B - Astronomy and Astrophysics, volume 507, 705-711 (2009/11-4)

Spectroscopy of the bright optical counterparts of X-ray sources in the direction of M 31.

BONFINI P., HATZIDIMITRIOU D., PIETSCH W. and REIG P.

Abstract (from CDS):

A recent survey of the Local Group spiral galaxy M 31 with XMM-Newton yielded a large number of X-ray sources. This is the second in a series of papers with the aim of identifying the optical counterparts of these X-ray sources. We have obtained optical spectra for 21 bright optical counterparts of 20 X-ray sources in the direction of M 31, using the 1.3-m Skinakas telescope in Crete, Greece. For 17 of the 20 X-ray sources, we have identified the optical counterpart as a normal late type star (of type F or later) in the foreground (i.e. in the Milky Way). For two more sources, there were two possible optical counterparts, in each case, while two more objects have X-ray properties that are not compatible with the spectral characteristics of late type non-flaring stars.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M 31 - X-rays: galaxies - X-rays: stars

Status at CDS:  

Simbad objects: 27

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Number of rows : 27

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LGGS J004007.76+404140.0 * 00 40 07.0 +40 41 40           ~ 1 0
2 2MASS J00400722+4041428 * 00 40 07.2097489783 +40 41 42.942629084   15.37 14.65     G2 4 0
3 2MASS J00400757+4031134 * 00 40 07.5643390493 +40 31 13.543741274   13.02 12.54     F8 5 0
4 LGGS J004040.03+402549.1 * 00 40 40.0 +40 25 49           ~ 1 0
5 [PFH2005] 78 * 00 40 40.0712239806 +40 25 53.358150627           G0 3 0
6 2MASS J00405458+4031303 * 00 40 54.5865782213 +40 31 30.419624054   14.549 14.286   13.670 F7 5 0
7 2MASS J00411865+4051592 * 00 41 18.6547388454 +40 51 59.250926040   13.72 13.151 12.76 12.494 G6 11 0
8 2MASS J00411911+4051017 * 00 41 19.1088044596 +40 51 01.811383719   14.70 13.90     KO 5 0
9 [HPH2013] 68 * 00 42 29.4386734783 +41 29 03.520537922   13.0 12.044 11.495 11.065 KO 10 0
10 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10859 1
11 2MASS J00433260+4109092 * 00 43 32.61 +41 09 09.3   11.58 10.8     K0 5 0
12 2MASS J00433861+4137386 * 00 43 38.6147515378 +41 37 38.772056939   14.48 13.44     K3 4 0
13 2MASS J00434293+4138078 * 00 43 42.9233541552 +41 38 07.960798485   15.1 12.8     F5 5 0
14 2MASS J00434663+4138360 * 00 43 46.6383485952 +41 38 36.178824192   14.28 13.24     K2 6 0
15 2MASS J00445336+4202145 * 00 44 53.3649124140 +42 02 14.607840180           K1 4 0
16 [BHG88] 41 3607 * 00 45 05.5163854762 +42 03 17.820697100   13.4 12.87     G2 3 0
17 2MASS J00453897+4156163 * 00 45 38.9733660999 +41 56 16.355490854   14.04 13.56     K0 5 0
18 2E 168 HXB 00 45 40.54 +42 08 06.6           K4 12 0
19 2MASS J00454112+4219440 * 00 45 41.1265406589 +42 19 43.972631047           G0 2 0
20 [SK98] 375 * 00 46 03.0905137189 +42 24 33.857678710           F6 4 0
21 2MASS J00462372+4121172 * 00 46 23.7207967011 +41 21 17.320080707   14.1 13.5     G0 3 0
22 UCAC3 263-6628 * 00 46 37.491 +41 29 05.34           G2 1 0
23 2MASS J00463781+4129037 * 00 46 37.81 +41 29 03.7   14.1   12.6   K1 3 0
24 UCAC2 46495150 * 00 46 46.2766857094 +42 30 47.882957251   13.500 13.025   12.267 G2 4 0
25 TYC 2805-1617-1 * 00 47 26.1219676500 +42 21 58.317916725   13.05 12.313 12.33   G2 6 1
26 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5123 1
27 NAME Local Group GrG ~ ~           ~ 6932 0

    Equat.    Gal    SGal    Ecl

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2020.06.06-17:03:12

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