2003A&A...406..299P


Query : 2003A&A...406..299P

2003A&A...406..299P - Astronomy and Astrophysics, volume 406, 299-304 (2003/7-4)

XMM-Newton study of the persistent X-ray source 1E 1743.1-2843 located in the Galactic Center direction.

PORQUET D., RODRIGUEZ J., CORBEL S., GOLDONI P., WARWICK R.S., GOLDWURM A. and DECOURCHELLE A.

Abstract (from CDS):

We report the results of an XMM-Newton observation of the persistent X-ray source 1E 1743.1-2843, located in the Galactic Center (GC) direction. We determine the position of the source at αJ2000=17h46m21.0s, δJ2000=-28°43'44'' (with an uncertainty of 1.5''), which is the most accurate to date, and will enable cross-identifications at other wavelengths. The source was bright during this observation (L2–10keV∼2.7x1036 d210kpcerg/s for a power-law continuum), with no significant variability. We propose that 1E 1743.1-2843 may be explained in terms of a black hole candidate in a low/hard state. There is an indication that the source exhibits different states from a comparison of our results with previous observations (e.g., ART-P, BeppoSAX). However, the present spectral analysis does not rule out the hypothesis of a neutron star low-mass X-ray binary as suggested previously. If 1E 1743.1-2843 is actually located in the GC region, we might expect to observe significant 6.4keV fluorescent iron line emission from nearby molecular clouds (e.g., GCM+0.25+0.01).

Abstract Copyright:

Journal keyword(s): X-rays: general - X-rays individual: 1E 1743.1-2843 - stars: neutron - black hole physics - stars: binaries: general

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 V* UY Vol LXB 07 48 33.71 -67 45 07.7 16.10 17.00 16.9 16.7 17.05 ~ 605 0
2 V* GP Vel HXB 09 02 06.8608812864 -40 33 16.899168060 6.85 7.37 6.87 6.31 6.05 B0.5Ia 1453 0
3 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.70 10.66     B1.5Iaeq 657 0
4 4U 1624-49 LXB 16 28 05.5318788600 -49 12 40.011095160           ~ 216 0
5 MXB 1658-298 LXB 17 02 06.54 -29 56 44.1 18.35 18.75 18.3     ~ 347 0
6 V* V821 Ara HXB 17 02 49.3876391280 -48 47 23.087954544 16.20 16.30 15.5     ~ 1974 0
7 NAME Great Annihilator LXB 17 43 54.83 -29 44 42.6           ~ 664 1
8 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13429 0
9 HD 316297 PM* 17 46 00.9806148360 -28 29 12.468223140   11.10 9.87     K7 4 0
10 NAME the Brick MoC 17 46 09 -28 43.8           ~ 180 0
11 SNR G000.3+00.0 Rad 17 46 15 -28 38.0           ~ 39 1
12 2E 3944 LXB 17 46 21.09 -28 43 42.3     12.50     ~ 119 0
13 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2147 1
14 V* V5512 Sgr LXB 18 14 31.55 -17 09 26.7     12.73     K5III 376 0

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2023.01.27-12:35:55

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