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Spin-up of a rapidly rotating star by angular momentum loss

Shapiro, Stuart L. and Teukolsky, Saul A. and Nakamura, Takashi (1990) Spin-up of a rapidly rotating star by angular momentum loss. Astrophysical Journal, 357 (1). L17-L20. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20180606-162410693

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Abstract

Can a rotating star spin up by radiating away its angular momentum? And if so, what can we infer about the properties of such a star? We show that the spin of a rapidly rotating star like a pulsar can indeed increase as it radiates away energy and angular momentum. For this to happen the adiabatic index governing the equation of state must be very close to 4/3 if the star is rotating uniformly. Otherwise the star must be rotating differentially.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu/abs/1990ApJ...357L..17SADSArticle
https://doi.org/10.1086/185756DOIArticle
ORCID:
AuthorORCID
Teukolsky, Saul A.0000-0001-9765-4526
Additional Information:© 1990. The American Astronomical Society. Received 1990 March 16; accepted 1990 April 11. It is a pleasure to thank R. H. Durisen and L. S. Finn for several helpful discussions. This work has been supported in part by National Science Foundation grants AST 87-14475, PHY 86-03284 and INT 88-15793 at Cornell University. This cooperative research project has been supported jointly by the NSF and JSPS under the US-Japan Cooperative Science Program. Fellowship support from the John Simon Guggenheim Memorial Foundation is gratefully acknowledged by S. L. S.
Funders:
Funding AgencyGrant Number
NSFAST 87-14475
NSFPHY 86-03284
NSFINT 88-15793
Japan Society for the Promotion of Science (JSPS)UNSPECIFIED
John Simon Guggenheim FoundationUNSPECIFIED
Subject Keywords:pulsars — stars: neutron — stars: rotation — stars: white dwarfs
Issue or Number:1
Record Number:CaltechAUTHORS:20180606-162410693
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180606-162410693
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86867
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Jun 2018 21:58
Last Modified:22 Nov 2019 09:58

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