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Simultaneous radio and X-ray observations of MXB1837 + 05 (Ser X−1)

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Abstract

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.

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Authors and Affiliations

  1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois, 60201

    M. P. ULMER

  2. National Radio Astronomy Observatory, Socorro, New Mexico, 87801

    R. M. HJELLMING

  3. Department of Physics and Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139

    W. H. G. LEWIN, J. A. HOFFMAN, J. G. JERNIGAN, W. WHEATON, F. PRIMIMI, J. DOTY & H. MARSHALL

Authors
  1. M. P. ULMER
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  2. R. M. HJELLMING
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  3. W. H. G. LEWIN
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  4. J. A. HOFFMAN
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  5. J. G. JERNIGAN
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  6. W. WHEATON
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  7. F. PRIMIMI
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  8. J. DOTY
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  9. H. MARSHALL
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ULMER, M., HJELLMING, R., LEWIN, W. et al. Simultaneous radio and X-ray observations of MXB1837 + 05 (Ser X−1). Nature 276, 799–800 (1978). https://doi.org/10.1038/276799b0

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  • DOI: https://doi.org/10.1038/276799b0

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