2003ApJ...583L..99M


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.16CEST11:24:09

2003ApJ...583L..99M - Astrophys. J., 583, L99-L102 (2003/February-1)

XMM-Newton spectroscopy of the accretion-driven millisecond X-ray pulsar XTE J1751-305 in outburst.

MILLER J.M., WIJNANDS R., MENDEZ M., KENDZIORRA E., TIENGO A., VAN DER KLIS M., CHAKRABARTY D., GAENSLER B.M. and LEWIN W.H.G.

Abstract (from CDS):

We present an analysis of the first high-resolution spectra measured from an accretion-driven millisecond X-ray pulsar in outburst. We observed XTE J1751-305 with XMM-Newton on 2002 April 7 for approximately 35 ks. Using a simple absorbed blackbody plus power-law model, we measure an unabsorbed flux of (6.6±0.1)x10–10 ergs.cm–2.s–1 (0.5-10.0 keV). A hard power-law component (Γ=1.44±0.01) contributes 83% of the unabsorbed flux in the 0.5-10.0 keV band, but a blackbody component (kT=1.05±0.01 keV) is required. We find no clear evidence for narrow or broad emission or absorption lines in the time-averaged spectra, and the sensitivity of this observation has allowed us to set constraining upper limits on the strength of important features. The lack of line features is at odds with spectra measured from some other X-ray binaries that share some similarities with XTE J1751-305. We discuss the implications of these findings on the accretion flow geometry in XTE J1751-305.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Close - Stars: Pulsars: General - Stars: Pulsars: Individual: Alphanumeric: XTE J1751-305 - Stars: Neutron - Stars: White Dwarfs - X-Rays: Binaries

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* BW Ant LXB 09 29 20.19 -31 23 03.2   18.50 18.63     ~ 177 0
2 [GHJ2008] 3 HXB 16 50 00.980 -49 57 43.60     11.89     K4V 358 0
3 [KRL2007b] 291 LXB 17 51 13.49 -30 37 23.4           ~ 234 0
4 V* V4580 Sgr LXB 18 08 27.54 -36 58 44.3   16.81 16.51     ~ 895 0
5 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 921 1

    Equat.    Gal    SGal    Ecl

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2021.04.16-11:24:09

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