2006A&A...456..287S


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST16:19:13

2006A&A...456..287S - Astronomy and Astrophysics, volume 456, 287-293 (2006/9-2)

Unveiling the nature of the highly absorbed X-ray source SAX J1748.2-2808 with XMM-Newton.

SIDOLI L., MEREGHETTI S., FAVATA F., OOSTERBROEK T. and PARMAR A.N.

Abstract (from CDS):

We report on the results of an EPIC XMM-Newton observation of the faint source SAX J1748.2-2808 and the surrounding field. This source was discovered during the BeppoSAX Galactic center survey performed in 1997-1998. A spatial analysis resulted in the detection of 31 sources within the EPIC field of view. SAX J1748.2-2808 is clearly resolved into 2 sources in EPIC images with the brighter contributing almost 80% of the 2-10keV flux. Spectral fits to this main source are consistent with an absorbed power-law with a photon index of 1.4±0.5 and absorption equivalent to 14 +6 –4x1022/cm2 together with an iron line at 6.6 +0.2 –0.2 keV with an equivalent width of 780 +620–380 eV. The significantly better statistics of the XMM-Newton observation, compared with BeppoSAX, allows to exclude a thermal nature for the X-ray emission. A comparison with other observations of SAXJ1748.2-2808 does not reveal any evidence for spectral or intensity long-term variability. Based on these properties we propose that the source is a low-luminosity high-mass X-ray binary located in the Galactic center region.

Abstract Copyright:

Journal keyword(s): Galaxy: center - X-rays: stars - X-rays: individual: SAX J1748.2-2808

Nomenclature: Table 4: [SMF2006] NN (Nos 1-31).

CDS comments: Table 3 star Tyc2 929 not identified.

Simbad objects: 36

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Number of rows : 36

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 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11760 0
2 2XMM J174716.1-281047 LXB 17 47 16.17 -28 10 48.2           ~ 46 0
3 SNR G000.9+00.1 SNR 17 47.3 -28 09           ~ 169 1
4 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 1943 1
5 2MASS J17473086-2813480 * 17 47 30.8551504105 -28 13 47.224825947           M5V 4 0
6 CXOGCS J174732.3-280856 X 17 47 32.311 -28 08 55.01           ~ 2 0
7 [SMF2006] 17 X 17 47 46.548 -28 09 02.48           ~ 1 0
8 [SMF2006] 23 X 17 47 48.290 -28 03 56.56           ~ 1 0
9 [SMF2006] 25 X 17 47 55.9212109364 -28 03 07.341792289           ~ 1 0
10 [SMF2006] 8 X 17 48 04.224 -28 27 34.85           ~ 1 0
11 [SMF2006] 22 X 17 48 05.051 -28 07 04.37           ~ 1 0
12 TYC 6840-929-1 * 17 48 10.8069637855 -28 18 31.200438709   12.20 10.52     ~ 3 0
13 [SMF2006] 29 X 17 48 13.565 -28 02 44.83           ~ 1 0
14 [SMF2006] 30 X 17 48 13.8692316156 -28 17 47.297122431           ~ 1 0
15 CXOGCS J174814.0-281620 X 17 48 14.050 -28 16 20.97           ~ 2 0
16 SAX J1748.2-2808 X 17 48 16 -28 08.2           ~ 9 0
17 2XMM J174816.9-280750 CV* 17 48 16.907 -28 07 50.36           ~ 3 0
18 [SMF2006] 13 X 17 48 17.0039294048 -28 15 45.840985645           ~ 1 0
19 [RHI84] 10-672 * 17 48 19.7272472631 -28 07 27.006431344   18.1 15.8     M6V 4 0
20 [SMF2006] 26 X 17 48 24.765 -28 13 19.46           ~ 1 0
21 [SMF2006] 14 X 17 48 28.394 -28 09 30.48           ~ 1 0
22 [SMF2006] 24 X 17 48 31.122 -28 11 50.41           ~ 1 0
23 [SMF2006] 21 X 17 48 34.653 -27 55 34.85           ~ 1 0
24 [SMF2006] 7 X 17 48 35.799 -27 56 18.45           ~ 2 0
25 [SMF2006] 16 X 17 48 38.911 -28 10 34.00           ~ 1 0
26 [SMF2006] 27 X 17 48 40.769 -28 18 25.06           ~ 1 0
27 [SMF2006] 20 X 17 48 41.01 -28 01 34.9           ~ 2 0
28 NAME Sgr D MoC 17 48 41.75 -28 01 45.0           ~ 119 1
29 [SMF2006] 1 X 17 48 48.01 -28 12 39.7           ~ 1 0
30 HD 316290 * 17 48 48.7229202971 -28 01 01.023488932   10.40 9.81     F8 4 0
31 HD 161824 * 17 48 50.9338084727 -28 14 46.097099281   9.58 8.31 8.73   K1/2III+A 7 0
32 [SMF2006] 19 X 17 48 51.713 -28 10 49.43           ~ 1 0
33 [SMF2006] 5 X 17 48 58.314 -28 14 21.21           ~ 1 0
34 [SMF2006] 10 X 17 48 58.874 -28 11 20.10           ~ 2 0
35 [SMF2006] 31 X 17 49 12.859 -28 04 38.12           ~ 1 0
36 BD+53 2790 HXB 22 07 56.2368407539 +54 31 06.405811141 9.4 10.11 9.84 9.64 9.43 O9.5Vep 174 0

    Equat.    Gal    SGal    Ecl

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2020.10.24-16:19:13

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