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

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

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...411l.411m&link_type=abstract

Astronomy and Astrophysics, v.411, p.L411-L414 (2003)

Astronomy and Astrophysics

Astrophysics

3

Integral, Jem-X, Bex Stars, Hmxrbs, Exo 2030+375

Scientific paper

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 3 x 1036 erg s-1. These observations allowed us to verify the in-flight instrumental properties of the JEM-X Monitor.
Based on observations with INTEGRAL, an ESA project with instruments and science data centre funded by ESA member states (especially the PI countries: Denmark, France, Germany, Italy, Switzerland, Spain), Czec Republic and Poland, and with the participation of Russia and the USA.

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