2006A&A...451..835H


Query : 2006A&A...451..835H

2006A&A...451..835H - Astronomy and Astrophysics, volume 451, 835-843 (2006/6-1)

Spectroscopy of the brightest optical counterparts of X-ray sources in the direction of M 31 and M 33.

HATZIDIMITRIOU D., PIETSCH W., MISANOVIC Z., REIG P. and HABERL F.

Abstract (from CDS):

Recent surveys of the Local Group spiral Galaxies M 31 and M 33 with XMM-Newton yielded a large number of X-ray sources. As part of the effort to identify and classify the objects responsible for this X-ray emission, we have obtained optical spectra of the brightest optical counterparts of the identified X-ray sources, using the 1.3m Skinakas Telescope. Most of these objects are foreground star candidates. The purpose of the present study is to confirm this identification and to explore the compatibility between the optical spectral classification and the observed X-ray properties of the sources. We have obtained optical spectra for the 14 brightest optical counterparts of X-ray sources identified by XMM-Newton in the direction of M 31 and for 21 optical counterparts in the direction of M 33, using the 1.3m Skinakas telescope in Crete, Greece. All of the M 31 sources and all but one of the M 33 sources were confirmed to be foreground stars, of spectral types between A and M. One of the stars is a late M dwarf with Hα emission, a flare star, also displaying strong X-ray variability. One of the M 33 sources (lying within the D25 ellipse) corresponds to a previously known background galaxy, LEDA 5899.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M 31 - galaxies: individual: M 33 - X-rays: galaxies - X-rays: stars - Local Group

VizieR on-line data: <Available at CDS (J/A+A/451/835): table1.dat table2.dat notes.dat>

Nomenclature: Table 1: [PMH2004] NNNa (No. 3b) added.

Simbad objects: 43

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Number of rows : 43
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 GPM 9.931229+40.661821 * 00 39 43.5134841600 +40 39 42.594816672   13.64 12.918   12.28 G0 10 0
2 TYC 2788-2214-1 * 00 39 56.5245862272 +40 41 00.366195804   10.95 10.55     F0 9 0
3 TYC 2801-2080-1 * 00 40 13.8229197816 +40 35 32.264155572   11.86 11.61     F5 6 0
4 TYC 2801-1998-1 * 00 40 23.8060351680 +40 53 06.913381200   11.11 10.55     F5 8 0
5 TYC 2801-2058-1 * 00 40 57.0302318640 +40 56 38.460660504   12.29 11.822 13.2 11.357 F5 10 0
6 GPM 10.350362+40.925996 * 00 41 24.1072476840 +40 55 33.321096192   14.370 13.61 13.18 12.927 G8 8 0
7 TYC 2801-2062-1 * 00 41 43.4634186768 +41 05 04.760791476   11.974 11.54 11.190 10.974 G0 13 0
8 BD+40 144 * 00 42 09.0037162656 +41 23 30.612437376   11.49 10.35     G8 9 0
9 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2098 2
10 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11935 1
11 2E 158 X 00 43 29.21 +41 07 48.6           ~ 14 0
12 RX J0043.5+4110 X 00 43 32.460 +41 10 41.66           ~ 12 0
13 TYC 2801-2037-1 * 00 43 32.6124061272 +41 09 09.208075644   12.15 10.92 10.54   K0 9 0
14 TYC 2805-2155-1 HB* 00 43 41.5232085576 +41 42 24.408660204   11.64 10.79     G8 9 0
15 TYC 2805-2128-1 * 00 43 50.1695653248 +41 24 11.658076956   11.72 11.22     F7 9 0
16 TYC 2805-248-1 * 00 44 23.9229797976 +42 00 09.621420480   11.85 11.14     G0 9 0
17 TYC 2805-2123-1 * 00 45 07.5409236576 +41 53 58.171238052   12.92 12.32     G9 7 0
18 TYC 2805-866-1 * 00 46 19.0398 +42 21 31.003   12.21 12.18     G0 3 0
19 USNO-B1.0 1204-00019500 * 01 31 52.6230408720 +30 29 25.964750940   17.5 16.1     M3 1 0
20 TYC 2293-1131-1 * 01 31 55.0011710040 +30 29 52.263271248   12.804 11.707 11.438   G9 4 0
21 [MPH2006] 27 * 01 32 23.37 +30 47 48.8   14.2 12.9     G9 4 0
22 RX J0132.4+3036 * 01 32 30.43 +30 36 18.6   14.2 12.9     K3 7 0
23 [MPH2006] 50 * 01 32 38.7886226328 +30 12 16.851017700   13.4 12.2     G4 4 0
24 GPM 23.213678+30.137274 * 01 32 51.2891539968 +30 08 14.183996784   12.8 12.1     ~ 4 0
25 TYC 2293-1324-1 * 01 32 56.8509933864 +30 15 43.052835852   11.42 10.23     G7 5 0
26 XMMU J013313.1+310252 ** 01 33 13.12 +31 02 52.1   15.6 14.7     ~ 2 1
27 HD 9444 V* 01 33 23.2566423024 +30 56 53.437578216   9.62 9.25 9.38   A5 12 0
28 HD 9483 ** 01 33 37.0722274560 +30 23 21.138481428 8.390 8.280 8.090     A3 37 0
29 [SB95] 14 PM* 01 33 41.8780494024 +30 38 49.068710268           M5 14 1
30 TYC 2293-637-1 * 01 33 43.3884898344 +30 46 30.790826112   11.77 11.37     G5 15 0
31 TYC 2293-810-1 * 01 33 46.5783558384 +30 54 30.829615308   11.34 10.79 12.2   F4 10 0
32 2MASS J01334671+3054550 * 01 33 46.71 +30 54 55.0   15.51 14.43     K0 9 0
33 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5538 1
34 TYC 2293-894-1 PM* 01 34 26.6567687208 +30 58 02.774231904   11.43 10.84     F8 4 0
35 [TFP88] X-9c * 01 34 33.0974427384 +30 57 53.818345728   14.3 13.3     G8 9 1
36 [MPH2006] 258 X 01 34 35.1635874552 +30 56 46.823287092           ~ 7 0
37 2MASX J01343835+3054495 AGN 01 34 38.3677118976 +30 54 49.320405576   17.92 16.76     ~ 10 1
38 2E 0132.0+3014 X 01 34 51.84 +30 29 09.3           ~ 20 0
39 GPM 23.719812+30.470085 * 01 34 52.7431113768 +30 28 12.079597296   13.70 13.23     F5 9 0
40 Z 502-114 G 01 35 08.8128813264 +31 02 19.020255504   15.5       ~ 17 1
41 TYC 2293-875-1 * 01 35 15.6459844440 +30 55 08.318419716   12.10 11.41     F8 4 0
42 TYC 2293-706-1 * 01 35 51.6579539952 +30 44 53.018194488   10.32 9.74     F5 13 0
43 NAME Local Group GrG ~ ~           ~ 7768 0

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2022.09.27-15:55:22

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