Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000basi...28..293m&link_type=abstract
Bulletin of the Astronomical Society of India, Vol. 28, p. 293-294 (2000)
Astronomy and Astrophysics
Astronomy
X-Ray Pulsar, Ixae, Profile
Scientific paper
The X-ray pulsars Cep X-4 and 4U 1907+09 were observed with the Indian X-ray Astronomy Experiment (IXAE). Observations of Cep-X4 were made during the declining phase of its latest 30 days outburst in 1997, July-August. The X-ray pulse profiles obtained during IXAE observations show inter-pulse dominated double-peak pulse. The second X-ray pulsar 4U 1907+09 with a period of 440s was observed in August 1996 and again in June 1998. The X-ray profile shows a double-peak pulse shape. The P obtained from these two observations indicate that the pulsar is in monotonically spin-down phase, at the rate of 0.23 s yr-1.
Agrawal Prahlad C.
Kasturirangan K.
Mukerjee Kallol
Paul Biswajit
Rao Ravi A.
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