Computer Science
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410..628s&link_type=abstract
The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 628-632 (1997).
Computer Science
4
Pulsars, X-Ray, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification, Gamma-Ray Sources, Gamma-Ray Bursts
Scientific paper
We observed 8 pulsars with high spin down flux and searched for pulsation in the X-ray band (0.6-10 keV) with ASCA. We detected X-ray emission from all pulsars, including new detection in the 2-10 keV band for 3 pulsars. We also found pulsed emission from 3 pulsars including the first detection of millisecond pulsar PSR B1821-24 [1]. The pulse of PSR B1821-24 has sharp double peaks similar to that of the Crab pulsar and power-law spectrum which strongly suggest the magnetospheric origin. We found an empirical relation between the pulsed luminosity LX(pulse) and the rotation energy loss Ėrot in the X-ray band among all X-ray pulsars observed with ASCA. The pulsed luminosity is consistent with the relation LX(pulse)~Ėrot3/2, while those for the pulsed emission in γ-ray band Lγ(pulse) is Lγ(pulse)~Ėrot1/2. It should be noted that the empirical relation in the X-ray band holds also for the millisecond pulsar PSR B1821-24, which suggests same pulse emission mechanism works for millisecond pulsars.
Kamae Teturo
Kawai Nobuyuki
Saito Yukio
Shibata Shinpei
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