JEM-X observations of the Be/X-ray binary EXO 2030+375

S.M. Nunez, P. Reig, P. Blay, P. Kretschmar, Niels Lund, V. Reglero

    Research output: Contribution to journalJournal articleResearchpeer-review


    We have used data from the Joint European Monitor (JEM-X) to perform an X-ray spectral and timing analysis of the 42-s transient pulsar EXO 2030+375 during an X-ray outburst. X-ray pulsations are clearly detected with an average pulse period of 41.66+/-0.05 s and an average pulse fraction of 60%. The profile of the energy spectrum did not change appreciably throughout the X-ray outburst, although the source shows a slightly softer spectrum during periastron passage in the energy range 9-25 keV. The 5-25 keV X-ray luminosity changed by a factor of 2 throughout the observations, reaching a maximum value of 3x10(36) erg s(-1). These observations allowed us to verify the in-flight instrumental properties of the JEM-X Monitor.
    Original languageEnglish
    JournalAstronomy and Astrophysics
    Issue number1
    Pages (from-to)L411-L414
    Publication statusPublished - 2003


    • EXO 2030+375
    • BeX stars
    • HMXRBs
    • JEM-X


    Dive into the research topics of 'JEM-X observations of the Be/X-ray binary EXO 2030+375'. Together they form a unique fingerprint.

    Cite this