2003A&A...411L.363P

Query : 2003A&A...411L.363P

2003A&A...411L.363P - Astronomy and Astrophysics, volume 411L363-367 (2003/11-3)

First INTEGRAL observations of eight persistent neutron star low mass X-ray binaries.

PAIZIS A., BECKMANN V., COURVOISIER T.J.-L., VILHU O., LUTOVINOV A., EBISAWA K., HANNIKAINEN D., CHERNYAKOVA M., ZURITA HERAS J.A., RODRIGUEZ J., ZDZIARSKI A.A., BAZZANO A., KUULKERS E., OOSTERBROEK T., FRONTERA F., GIMENEZ A., GOLDONI P., SANTANGELO A. and PALUMBO G.G.C.

Abstract (from CDS):

Early results from the INTEGRAL Core Program, for a sample of eight persistently bright neutron star low mass X-ray binaries in the energy range from 5keV to 200keV, are presented. It is shown that INTEGRAL efficiently detects sources and that spectra may be obtained up to several hundreds of keV by combining data from three of the four INTEGRAL instruments: JEM-X, IBIS and SPI. For the source GX 17+2 it is shown that the spectrum extends well above 100keV with a flattening above 30 keV. This might suggest a non-thermal comptonisation emission, but uncertainties in the current data reduction and background determination do not allow firm conclusions to be drawn yet.

Abstract Copyright: ∼

Journal keyword(s): stars: neutron - binaries: close - X-rays: binaries - INTEGRAL sources

CDS comments: SAX J1747.0-2858 is a misprint for SAX J1747.0-2853.

Simbad objects: 16

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Number of rows : 16
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 V* V818 Sco LXB 16 19 55.0692669024 -15 38 25.017666540 11.60 12.40 11.1     Oev 1730 0
2 V* V2216 Oph LXB 17 31 44.17 -16 57 40.9 16.40 17.10 16.8     ~ 329 1
3 1ES 1735-26.9 LXB 17 38 17.6 -26 59 39           ~ 177 0
4 [KRL2007b] 275 LXB 17 47 02.60 -28 52 58.9     14.20     ~ 182 0
5 X Sgr X-1 LXB 17 47 56.3 -26 33 47           ~ 402 0
6 4U 1758-25 LXB 18 01 09.7308060816 -25 04 44.120221284     11.08     ~ 705 1
7 2CXO J180112.3-254436 HXB 18 01 12.4783119670 -25 44 35.694663099           AV 417 1
8 X Sgr X-3 LXB 18 01 32.6 -20 31 45           ~ 254 1
9 SAX J1805.5-2031 X 18 05 34 -20 30.8           ~ 15 0
10 V* V5512 Sgr LXB 18 14 31.3 -17 09 23     12.73     K5III 449 0
11 4U 1812-12 LXB 18 15 06.4 -12 05 48           ~ 124 2
12 V* NP Ser LXB 18 16 01.7 -14 02 09   18.8       K 683 2
13 2MASS J18203009-1434228 HXB 18 20 30.09648 -14 34 22.8828           B0-2IV-Ve 71 1
14 V* V691 CrA LXB 18 25 46.8185061768 -37 06 18.529336656 14.30 15.20 15.1     ~ 461 0
15 V* V4634 Sgr LXB 18 29 28.8 -23 47 48 18.90 19.40 19     ~ 399 0
16 V* V1341 Cyg LXB 21 44 41.1544345272 +38 19 17.066570988 15.00 15.13 14.68 15.00   A9III 1229 1

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