SIMBAD references

1997A&A...323..158M - Astronomy and Astrophysics, volume 323, 158-162 (1997/7-1)

A candidate optical and infrared counterpart for GRS 1739-278.


Abstract (from CDS):

The accurate radio position of the hard X-ray transient GRS 1739-278 has been observed with different ESO telescopes in a search for optical and near infrared counterpart. A candidate counterpart has been detected in all filters observed within less than 1" of the radio position. No significant optical nor near infrared photometric variability is observed within ∼0.2mag in a time scale of several weeks. Our spectral type and reddening analysis appears to be consistent with either a normal massive X-ray binary or a low mass X-ray binary with a giant companion, both at roughly the galactic center distance. The a priori probability of a chance superposition in a field as crowded as that of GRS 1739-278 is estimated to be 14%. However, this decreases to less than 1% if the source belongs to any of the spectral types and luminosity classes proposed.

Abstract Copyright:

Journal keyword(s): X-rays: stars - infrared: stars - radio continuum: stars - stars: individual: GRS 1739-278 (Granat 1739-278)

CDS comments: p. 159, comparison and check stars not in SIMBAD (coordinates only are given, no identificators).

Simbad objects: 7

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