Simultaneous radio and x-ray observations of MXB1837 + 05 (Ser X-1) [2]

M. P. Ulmer*, R. M. Hjellming, W. H.G. Lewin, J. A. Hoffman, J. G. Jernigan, W. Wheaton, F. Primimi, J. Doty, H. Marshall

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

3 Scopus citations


DURING a continuing program of radio observations of x-ray sources carried out with the NRAO very large array (VLA), we have made high sensitivity searches for radio emission from MXB1837 + 05 = Ser X - 1 (ref. 1), particularly during the SAS 3 MIT world-wide x-ray burster watch in June 19772. Observations of MXB1837 + 05 were carried out on 26 April, 12 and 13 June 1977, with six 25-m antennas of the VLA operated at 4,884 MHz with system temperatures of ∼60 K and bandwidths of 50 MHz. Upper limits of 1 mJy were obtained for the time-averaged radio emission from Ser X - 1 during the three periods of observation, and no short time scale radio emission was detected during or after the times x-ray bursts were observed on 12 and 13 June 1977.

Original languageEnglish (US)
Pages (from-to)799-800
Number of pages2
Issue number5690
StatePublished - 1978

ASJC Scopus subject areas

  • General


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