2018MNRAS.475.4911S

Query : 2018MNRAS.475.4911S

2018MNRAS.475.4911S - Mon. Not. R. Astron. Soc., 475, 4911-4923 (2018/April-3)

NuSTAR view of the central region of M31.

STIELE H. and KONG A.K.H.

Abstract (from CDS):

Our neighbouring large spiral galaxy, the Andromeda galaxy (M31 or NGC 224), is an ideal target to study the X-ray source population of a nearby galaxy. NuSTAR observed the central region of M31 in 2015 and allows studying the population of X-ray point sources at energies higher than 10 keV. Based on the source catalogue of the large XMM-Newton survey of M31, we identified counterparts to the XMM-Newton sources in the NuSTAR data. The NuSTAR data only contain sources of a brightness comparable (or even brighter) than the selected sources that have been detected in XMM-Newton data. We investigate hardness ratios, spectra, and long-term light curves of individual sources obtained from NuSTAR data. Based on our spectral studies, we suggest four sources as possible X-ray binary candidates. The long-term light curves of seven sources that have been observed more than once show low (but significant) variability.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

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

Simbad objects: 51

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Number of rows : 51
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 [M93b] 140 GlC 00 42 09.49 +41 17 45.6 20.017 18.621 17.069 16.064   ~ 25 0
2 CXOM31 J004212.0+411757 LXB 00 42 12.1 +41 17 58           ~ 6 0
3 Bol 78 GlC 00 42 12.1550530152 +41 17 58.812456840 20.138 19.220 17.817 16.911 16.174 ~ 44 0
4 RX J004212.3+411819 XB? 00 42 13.10 +41 18 35.5           ~ 16 0
5 CXOM31 J004215.2+411801 X 00 42 15.216 +41 18 02.25           ~ 7 0
6 RX J0042.3+4113 LXB 00 42 18.6 +41 14 02           ~ 6 0
7 Bol 86 GlC 00 42 18.6515838696 +41 14 01.999584816 15.985 15.899 15.131 14.661 13.920 ~ 78 0
8 C84 23 X 00 42 21.460 +41 16 01.32           ~ 10 0
9 2MASS J00422155+4114197 s?r 00 42 21.5572037424 +41 14 19.721183064 20.615 19.819 18.688 18.109 17.715 ~ 11 0
10 C84 25 X 00 42 22.394 +41 13 33.99           ~ 12 0
11 RX J004222.8+411536 XB* 00 42 22.919 +41 15 35.14           ~ 24 0
12 C84 27 XB? 00 42 23.152 +41 14 07.49           ~ 11 0
13 CXOM31 J004228.2+411000 XB? 00 42 28.167 +41 09 59.84           ~ 12 0
14 RX J004228.5+411219 X 00 42 28.268 +41 12 22.76           ~ 16 0
15 RX J004231.4+411618 X 00 42 31.123 +41 16 21.74           ~ 17 0
16 2MASS J00423224+4113124 s?r 00 42 32.241 +41 13 12.42 23.082 22.117 21.266 20.522 19.644 ~ 6 1
17 CXOM31 J004233.8+411620 XB? 00 42 33.865 +41 16 19.28           ~ 10 0
18 SWIFT J0042.6+4112 X 00 42 37.4 +41 11 42           ~ 8 0
19 RX J004241+41155 LXB 00 42 38.59 +41 16 03.2           ~ 22 1
20 CXOM31 J004239.9+411547 PN 00 42 39.74 +41 15 49.2     20.76     ~ 17 0
21 CXOM31 J004240.2+411845 XB? 00 42 40.199 +41 18 45.38           ~ 9 0
22 Bol 124 GlC 00 42 41.43 +41 15 23.9 16.153 15.589 14.73 14.060 13.74 ~ 68 0
23 C84 51 LXB 00 42 41.5 +41 15 24           ~ 4 0
24 2XMM J004241.6+411635 XB* 00 42 41.85 +41 16 35.8           ~ 9 0
25 2XMM J004242.1+411607 XB* 00 42 42.17 +41 16 08.3           ~ 17 0
26 CXOM31 J004242.4+411553 PN 00 42 42.464 +41 15 53.82           ~ 10 0
27 RX J0042.7+4115 X 00 42 42.985 +41 15 43.26           ~ 13 1
28 CXOM31 J004243.7+411632 XB? 00 42 43.739 +41 16 32.60           ~ 8 0
29 XMMM31 J004244.1+411607 XB? 00 42 44.19 +41 16 07.9           ~ 4 0
30 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
31 CXOM31 J004244.6+411618 X 00 42 44.667 +41 16 18.28           ~ 8 0
32 2MASS J00424699+4116280 PN 00 42 47.00 +41 16 28.1     21.18     ~ 19 0
33 CXOM31 J004248.5+411521 X 00 42 48.528 +41 15 21.31           ~ 13 0
34 CXOM31 J004249.2+411816 XB? 00 42 49.233 +41 18 16.26           ~ 11 0
35 3XMM J004252.4+411648 XB? 00 42 52.44 +41 16 49.1           ~ 5 0
36 RX J0042.8+4118 XB? 00 42 52.528 +41 18 54.75           ~ 14 0
37 RX J004253.9+411553 X 00 42 54.937 +41 16 03.46           ~ 15 0
38 Bol 138 GlC 00 42 55.6094085216 +41 18 35.071533612 18.668 17.917 16.917 16.321 15.782 ~ 43 0
39 CXOM31 J004256.9+411844 XB? 00 42 56.914 +41 18 44.37           ~ 10 0
40 2E 152 X 00 42 57.932 +41 11 04.59           ~ 16 0
41 CXOM31 J004258.3+411529 XB? 00 42 58.335 +41 15 29.46           ~ 11 0
42 Bol 143 GlC 00 42 59.6426520720 +41 19 19.253372304 17.800 17.075 16.087 15.486 14.94 ~ 84 0
43 Bol 144 GlC 00 42 59.8584082992 +41 16 05.750106096 18.47 17.691 16.727 16.153 15.74 ~ 62 0
44 Bol 146 GlC 00 43 02.921 +41 15 22.51 18.34 17.851 16.930 16.348 15.870 ~ 58 1
45 Bol 148 GlC 00 43 03.8563107048 +41 18 04.761860328 16.80 16.623 15.799 15.284 14.869 ~ 84 0
46 CXOM31 J004304.2+411601 XB? 00 43 04.24 +41 16 01.6   19.1       ~ 11 0
47 CXOM31 J004306.9+411810 No* 00 43 06.96 +41 18 09.9           ~ 17 1
48 Bol 153 GlC 00 43 10.6182973728 +41 14 51.289897920 17.726 17.117 16.148 15.553 14.98 ~ 73 0
49 RX J0043.5+4110 X 00 43 32.460 +41 10 41.66           ~ 12 0
50 XMMM31 J004333.7+411407 X 00 43 33.78 +41 14 07.5           ~ 4 0
51 Bol 185 GlC 00 43 37.2819255864 +41 14 43.514072700 16.910 16.475 15.543 14.982 14.47 ~ 75 0

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