Spin-down rate of 1E 2259+586 from RXTE observation

1998-08-01
Baykal, Altan
Strohmayer, T
Stark, MJ
We present new X-ray observations of the X-ray pulsar 1E 2259+586, obtained during March 1997, with the Rossi X-Ray Timing Explorer (RXTE). We have measured the pulse frequency derivative (nu) over dot = (-1.08 +/- 0.04) x 10(-14) Hz s(-1) from pulse arrival times obtained in a sequence of 5 observations spread over one month. This (nu) over dot is consistent with the long term spin-down trend. We also found that the observed X-ray luminosity is consistent with that measured at quiescent X-ray flux levels by previous missions. Our observations imply that 1E 2259 +/- 586 was spinning down steadily without exhibiting any stochastic torque noise fluctuations during the month covered by our observations.
ASTRONOMY & ASTROPHYSICS

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Citation Formats
A. Baykal, T. Strohmayer, and M. Stark, “Spin-down rate of 1E 2259+586 from RXTE observation,” ASTRONOMY & ASTROPHYSICS, pp. 173–176, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53029.