2016ApJ...821...54S

Query : 2016ApJ...821...54S

2016ApJ...821...54S - Astrophys. J., 821, 54-54 (2016/April-2)

X-ray sources in the dwarf spheroidal galaxy Draco.

SONBAS E., RANGELOV B., KARGALTSEV O., DHUGA K.S., HARE J. and VOLKOV I.

Abstract (from CDS):

We present the spectral analysis of an 87 ks XMM-Newton observation of Draco, a nearby dwarf spheroidal galaxy. Of the approximately 35 robust X-ray source detections, we focus our attention on the brightest of these sources, for which we report X-ray and multiwavelength parameters. While most of the sources exhibit properties consistent with active galactic nuclei, few of them possess the characteristics of low-mass X-ray binaries (LMXBs) and cataclysmic variable (CVs). Our analysis places constraints on the population of X-ray sources with LX > 3 x 1033 erg s-1 in Draco, suggesting that there are no actively accreting black hole and neutron star binaries. However, we find four sources that could be quiescent state LMXBs/CVs associated with Draco. We also place constraints on the central black hole luminosity and on a dark matter decay signal around 3.5 keV.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): dark matter - galaxies: dwarf - galaxies: individual: Draco dwarf - novae, cataclysmic variables - stars: carbon - X-rays: binaries

VizieR on-line data: <Available at CDS (J/ApJ/821/54): table3.dat>

Simbad objects: 40

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Number of rows : 40
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 CRTS J135716.8-093238 HXB 13 57 16.8357790008 -09 32 38.796487512           M4.5V 187 0
4 3XMM J171844.7+575103 X 17 18 44.79 +57 51 03.3           ~ 1 0
5 3XMM J171900.8+575145 X 17 19 00.82 +57 51 45.8           ~ 1 0
6 [VV2006] J171901.7+580028 QSO 17 19 01.7003916720 +58 00 28.750424724   18.7 19.008 19.3 18.400 ~ 35 0
7 3XMM J171904.3+580329 X 17 19 04.30 +58 03 29.5           ~ 1 0
8 3XMM J171904.6+574727 X 17 19 04.67 +57 47 27.3           ~ 1 0
9 3XMM J171910.3+574948 X 17 19 10.38 +57 49 48.0           ~ 1 0
10 2MASS J17191999+5759430 * 17 19 19.9943172120 +57 59 43.111532364   19.042 18.412 17.731 17.148 ~ 10 0
11 3XMM J171921.7+574943 X 17 19 21.74 +57 49 43.8           ~ 1 0
12 3XMM J171924.8+574452 X 17 19 24.85 +57 44 52.1           ~ 1 0
13 BASV 203 QSO 17 19 34.4250040464 +57 58 49.422491580   18.6 19.515 19.2 18.735 ~ 15 0
14 3XMM J171936.5+574900 X 17 19 36.51 +57 49 00.6           ~ 1 0
15 3XMM J171936.8+574658 X 17 19 36.89 +57 46 58.4           ~ 1 0
16 3XMM J171945.4+575256 X 17 19 45.42 +57 52 56.9           ~ 1 0
17 3XMM J171953.9+575950 X 17 19 53.99 +57 59 50.7           ~ 1 0
18 3XMM J171957.0+574617 X 17 19 57.05 +57 46 17.6           ~ 1 0
19 [ALS82] C1 Sy* 17 19 57.6571766280 +57 50 05.483985972     17.15   15.66 C,1e 68 0
20 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
21 [BS61] 526 * 17 20 18.0233579664 +57 51 05.289183936     18.672   16.219 ~ 6 0
22 V* GM Dra SB* 17 20 21.8832019536 +57 58 27.057071532   9.30 8.77     F8 70 0
23 3XMM J172025.7+575304 X 17 20 25.70 +57 53 04.6           ~ 1 0
24 3XMM J172028.3+575623 X 17 20 28.37 +57 56 23.1           ~ 1 0
25 3XMM J172033.1+580615 X 17 20 33.11 +58 06 15.2           ~ 1 0
26 3XMM J172033.6+580829 X 17 20 33.67 +58 08 29.9           ~ 2 0
27 3XMM J172037.1+574855 Sy1 17 20 37.1529033192 +57 48 56.188018152   19.49 18.93     ~ 9 0
28 TYC 3896-604-1 SB* 17 20 37.6823155584 +58 02 11.764176108   11.84 10.54     ~ 10 0
29 3XMM J172043.1+575442 X 17 20 43.10 +57 54 43.0           ~ 1 0
30 3XMM J172047.3+575320 X 17 20 47.32 +57 53 20.6           ~ 1 0
31 3XMM J172051.9+574159 X 17 20 51.95 +57 41 59.2           ~ 1 0
32 3XMM J172052.2+575513 X 17 20 52.30 +57 55 13.0           ~ 1 0
33 3XMM J172100.4+575153 X 17 21 00.49 +57 51 53.2           ~ 1 0
34 3XMM J172104.8+575333 X 17 21 04.83 +57 53 33.3           ~ 2 0
35 3XMM J172112.1+575001 X 17 21 12.11 +57 50 01.8           ~ 1 0
36 [VV2006] J172122.8+575029 QSO 17 21 22.8274038312 +57 50 29.397366204   18.35 18.146   17.448 ~ 37 0
37 3XMM J172141.3+575235 X 17 21 41.39 +57 52 35.1           ~ 1 0
38 [VV2006] J172148.2+575805 QSO 17 21 48.2735395752 +57 58 05.331653148   20.46 20.70   19.75 ~ 27 0
39 RX J1721.9+5749 BY* 17 21 58.3080145056 +57 49 22.129673628   11.73 11.12 10.78   ~ 11 0
40 NAME Local Group GrG ~ ~           ~ 9325 0

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