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Preliminary Results on Intermittent Behaviour of Millisecond Pulsar SAX J1808.4-3658

Published online by Cambridge University Press:  22 February 2018

M. T. Menna ,
A. Papitto ,
L. Burderi ,
T. Di Salvo ,
L. Stella  and
N. R. Robba
M. T. Menna
Affiliation:
Osservatorio Astronomico di Roma, Monteporzio Сatone (Roma), via di Frascati 33, 00040, Italy ([email protected])
A. Papitto
Affiliation:
Osservatorio Astronomico di Roma, Monteporzio Сatone (Roma), via di Frascati 33, 00040, Italy ([email protected])
L. Burderi
Affiliation:
Osservatorio Astronomico di Roma, Monteporzio Сatone (Roma), via di Frascati 33, 00040, Italy ([email protected])
T. Di Salvo
Affiliation:
Astronomical Institute University of Amsterdam
L. Stella
Affiliation:
Osservatorio Astronomico di Roma, Monteporzio Сatone (Roma), via di Frascati 33, 00040, Italy ([email protected])
N. R. Robba
Affiliation:
Dipartimento di Astronomia, Universitá di Palermo

Extract

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We analyzed RXTE data from the burst of the year 2000 of the X-ray millisecond binary pulsar SAX J 1808.4-3658 with the intent of determining the new orbital parameters.

We used the observations of SAX J1808.4-3658 performed by the Rossi X-Ray Timing Explorer (RXTE) when the source was again detected in outburst during the period January-March 2000 (Wijnands et al. 2001). In particular we examined the data from the Proportional Counter Array (РСA) (Jahoda et al. 1996). We first applied barycentric correction to the data using the optical coordinates of the source (Roche et al. 98).

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 220
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

References

Roche, P. et al. 1998, IAUC, 6885 Google Scholar
Jahoda, K. et al. 1996, Proc. SPIE, 2808, 59 Google Scholar
Wijnands, R. et al. 2001, ApJ, 560, 892 Google Scholar
Menna, M.T. et al. 2004, in preparationGoogle Scholar