The double pulsar J0737-3039: testing the neutron star equation of state

The double pulsar J0737-3039: testing the neutron star equation of state

The double pulsar J0737-3039 has become an important astrophysical laboratory for testing fundamental physics. Here we demonstrate that the low measured mass of Pulsar B can be used to constrain the equation of state of neutron star matter under the assumption that it formed in an electron-capture s...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2005-08, Vol.361 (4), p.1243-1249
Hauptverfasser: Podsiadlowski, Ph, Dewi, J. D. M., Lesaffre, P., Miller, J. C., Newton, W. G., Stone, J. R.
Format: Artikel
Sprache:eng
Schlagworte:
binaries: close
Double stars
Evolution
Neutrons
Pulsars
pulsars: general
pulsars: individual: J0737-3039
Star & galaxy formation
stars: evolution
stars: neutron
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Beschreibung
Zusammenfassung:The double pulsar J0737-3039 has become an important astrophysical laboratory for testing fundamental physics. Here we demonstrate that the low measured mass of Pulsar B can be used to constrain the equation of state of neutron star matter under the assumption that it formed in an electron-capture supernova. We show that the observed orbital parameters as well as the likely evolutionary history of the system support such a hypothesis, and discuss future refinements that will improve the constraints this test may provide.
ISSN:0035-8711
1365-2966
DOI:10.1111/j.1365-2966.2005.09253.x