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Issue A&A
Volume 407, Number 1, August III 2003
Page(s) 259 - 263
Section Stellar atmospheres
DOI http://dx.doi.org/10.1051/0004-6361:20030829



A&A 407, 259-263 (2003)
DOI: 10.1051/0004-6361:20030829

What we can learn from observations of cooling neutron stars

D. G. Yakovlev1 and P. Haensel2

1  Ioffe Physical Technical Institute, Politekhnicheskaya 26, 194021 St.-Petersburg, Russia
2  Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw, Poland
    e-mail: haensel@camk.edu.pl

(Received 3 September 2002 / Accepted 17 April 2003 )

Abstract
A generic toy model of a cooling neutron star (NS) is used to analyze cooling of NSs with nucleon and exotic compositions of the cores. The model contains the parameters which specify the levels of slow and fast neutrino emission as well as the lower and upper densities of the layer where the slow emission transforms into the fast one. The prospects to constrain these parameters from the present and future observations of isolated middle-aged NSs are discussed.


Key words: stars: neutron -- dense matter

Offprint request: D. G. Yakovlev, yak@astro.ioffe.ru

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© ESO 2003


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