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VLT search for the infrared counterpart of IE 1740.7-2942

  • J. Martí
  • , I. F. Mirabel
  • , S. Chaty
  • , L. F. Rodríguez
  • Departamento de Física
  • University of Jaen
  • Université Paris-Diderot
  • Instituto de Astronomía y Física del Espacio
  • The Open University
  • Instituto de Astronomía
  • UNAM Campus Morelia

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

We report the results of our search for the near infrared counterpart of the microquasar IE 1740.7-2942 using the VLT1. For the first time, several counterpart candidates have been found in our Ks-band images that may be consistent with the best radio and X-ray positions available for IE 1740.7-2942. However, the non-detection of variability between two observing epochs and the positional uncertainty still remaining at the ≲ 1″ level prevent us from identifying an unambiguous counterpart. Alternatively, the VLT images set new upper limits significantly deeper than previously reported that constrain the binary companion to be later than B8 V or earlier than G5 III.

Original languageEnglish
Pages (from-to)184-187
Number of pages4
JournalAstronomy and Astrophysics
Volume363
Issue number1
Publication statusPublished - 1 Dec 2000
Externally publishedYes

Keywords

  • Galaxy: center
  • Infrared: stars
  • Radio continuum: stars
  • Stars: individual: IE 1740.7-2942
  • X-rays: stars

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