SIMBAD references

1999ApJ...523..197K - Astrophys. J., 523, 197-202 (1999/September-3)

Discovery of a hard X-ray source, SAX J0635+0533, in the error box of the gamma-ray source 2EG 0635+0521.


Abstract (from CDS):

We have discovered an X-ray source, SAX J0635+0533, with a hard spectrum within the error box of the GeV gamma-ray source in Monoceros, 2EG J0635+0521. The unabsorbed flux from the source is 1.2x10–11–2.s–1 in the 2-10 keV band. The X-ray spectrum is consistent with a simple power-law model with absorption. The photon index is 1.50±0.08, and we detect emission out to 40 keV. Optical observations identify a counterpart with a V magnitude of 12.8. The counterpart has broad emission lines and the colors of an early B-type star. If the identification of the X-ray/optical source with the gamma-ray source is correct, then the source would be a gamma-ray-emitting X-ray binary.

Abstract Copyright:

Journal keyword(s): Gamma Rays: Observations - Stars: Pulsars: General - stars: individual (2CG 135+01, 2EG J0635+0521, LS I +61 303, PSR J1259-63 (read: PSR B1259-63), SAX J0635+0533 (read: SAX J0635.2+0533)) - Stars: Neutron

Simbad objects: 8

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:1999ApJ...523..197K and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact