Issue |
A&A
Volume 375, Number 2, August IV 2001
|
|
---|---|---|
Page(s) | 405 - 410 | |
Section | Interstellar and circumstellar matter | |
DOI | https://doi.org/10.1051/0004-6361:20010891 | |
Published online | 15 August 2001 |
Are radio pulsars strange stars ?
1
Indian Institute of Astrophysics, Koramangala, Bangalore 560 034, India
2
Raman Research Institute, C.V. Raman Avenue, Sadashivanagar, Bangalore 560 080, India
Corresponding author: R. C. Kapoor, rck@iiap.ernet.in
Received:
11
April
2001
Accepted:
5
June
2001
A remarkably precise observational relation for pulse core component
widths of radio pulsars is used to derive stringent limits on pulsar radii, strongly indicating
that pulsars are strange stars rather than neutron stars. This is achieved
by inclusion of general relativistic effects due to the pulsar mass on the
size of the emission region needed to explain the observed pulse widths, which
constrain the pulsar masses to be ≤2.5 and radii ≤10.5 km.
Key words: pulsars: general / dense matter / equation of state / stars: neutron
© ESO, 2001
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