Limits on the quiescent radio emission from the black hole binaries GRO J1655-40 and XTE J1550-564

D. E. Calvelo, R. P. Fender, Dave Russell, E. Gallo, S. Corbel, A. K. Tzioumis, M. E. Bell, F. Lewis, T. J. Maccarone

Research output: Contribution to journalArticle

Abstract

We present the results of radio observations of the black hole binaries GRO J1655-40 and XTE J1550-564 in quiescence, with the upgraded Australia Telescope Compact Array. Neither system was detected. Radio flux density upper limits (3σ) of 26 μJy (at 5.5 GHz), 47 μJy (at 9 GHz) for GRO J1655-40 and 1.4 mJy (at 1.75 GHz), 27 μJy (at 5.5 GHz), 47 μJy (at 9 GHz) for XTE J1550-564 were measured. In conjunction with quasi-simultaneous Chandra X-ray observations (in the case of GRO J1655-40) and Faulkes Telescope optical observations (XTE J1550-564) we find that these systems provide the first evidence of relatively 'radio-quiet' black hole binaries at low luminosities, indicating that the scatter observed in the hard state X-ray-radio correlation at higher luminosities may also extend towards quiescent levels.

Original languageEnglish (US)
Pages (from-to)839-845
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume409
Issue number2
DOIs
StatePublished - Dec 1 2010

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radio emission
luminosity
telescopes
radio
radio observation
x rays
flux density

Keywords

  • Binaries: close
  • Black hole physics
  • ISM: jets and outflows
  • Stars: individual: GRO J1655-40
  • Stars: individual: XTE J1550-564
  • X-rays: binaries

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Limits on the quiescent radio emission from the black hole binaries GRO J1655-40 and XTE J1550-564. / Calvelo, D. E.; Fender, R. P.; Russell, Dave; Gallo, E.; Corbel, S.; Tzioumis, A. K.; Bell, M. E.; Lewis, F.; Maccarone, T. J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 409, No. 2, 01.12.2010, p. 839-845.

Research output: Contribution to journalArticle

Calvelo, D. E. ; Fender, R. P. ; Russell, Dave ; Gallo, E. ; Corbel, S. ; Tzioumis, A. K. ; Bell, M. E. ; Lewis, F. ; Maccarone, T. J. / Limits on the quiescent radio emission from the black hole binaries GRO J1655-40 and XTE J1550-564. In: Monthly Notices of the Royal Astronomical Society. 2010 ; Vol. 409, No. 2. pp. 839-845.
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AU - Corbel, S.

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