Neutron star corequakes and crustquakes

H. Heintzmann; W. Hillebrandt; E. Krotscheck; W. Kundt

doi:10.1016/0003-4916(73)90170-X

Neutron star corequakes and crustquakes

H. Heintzmann
, W. Hillebrandt
, E. Krotscheck
, W. Kundt

Physics

Institut für theoretische Physik
Bielefeld University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A simple model for corequakes and crustquakes of neutron stars is developed which allows one to compute the (maximal possible) changes in the moments of inertia. Applied to recent semirealistic neutron star models, our results show that the large speed-ups observed twice in the Vela pulsar can (on inertial grounds) be related to both corequakes and crustquakes. The gravitational energy stored in the deformed core would be larger than the energy stored in the rotation of a young (10³ to 10⁴ years old) pulsar.

Original language	English
Pages (from-to)	625-641
Number of pages	17
Journal	Annals of Physics
Volume	81
Issue number	2
DOIs	https://doi.org/10.1016/0003-4916(73)90170-X
State	Published - Dec 1973

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abstract = "A simple model for corequakes and crustquakes of neutron stars is developed which allows one to compute the (maximal possible) changes in the moments of inertia. Applied to recent semirealistic neutron star models, our results show that the large speed-ups observed twice in the Vela pulsar can (on inertial grounds) be related to both corequakes and crustquakes. The gravitational energy stored in the deformed core would be larger than the energy stored in the rotation of a young (103 to 104 years old) pulsar.",

author = "H. Heintzmann and W. Hillebrandt and E. Krotscheck and W. Kundt",

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T1 - Neutron star corequakes and crustquakes

AU - Heintzmann, H.

AU - Hillebrandt, W.

AU - Krotscheck, E.

AU - Kundt, W.

PY - 1973/12

Y1 - 1973/12

N2 - A simple model for corequakes and crustquakes of neutron stars is developed which allows one to compute the (maximal possible) changes in the moments of inertia. Applied to recent semirealistic neutron star models, our results show that the large speed-ups observed twice in the Vela pulsar can (on inertial grounds) be related to both corequakes and crustquakes. The gravitational energy stored in the deformed core would be larger than the energy stored in the rotation of a young (103 to 104 years old) pulsar.

AB - A simple model for corequakes and crustquakes of neutron stars is developed which allows one to compute the (maximal possible) changes in the moments of inertia. Applied to recent semirealistic neutron star models, our results show that the large speed-ups observed twice in the Vela pulsar can (on inertial grounds) be related to both corequakes and crustquakes. The gravitational energy stored in the deformed core would be larger than the energy stored in the rotation of a young (103 to 104 years old) pulsar.

UR - https://www.scopus.com/pages/publications/3943101156

U2 - 10.1016/0003-4916(73)90170-X

DO - 10.1016/0003-4916(73)90170-X

M3 - Article

AN - SCOPUS:3943101156

SN - 0003-4916

VL - 81

SP - 625

EP - 641

JO - Annals of Physics

JF - Annals of Physics

IS - 2

ER -

Neutron star corequakes and crustquakes

Abstract

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