Open AccessMillimeter-Wave Signature of Strange Matter Stars
Author(s) -
J. J. Broderick,
Eugene Herrin,
Timothy P. Krisher,
David L. Morgan,
Doris C. Rosenbaum,
Marc Sher,
Vigdor L. Teplitz
Publication year - 1998
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/311078
Subject(s) - physics , neutron star , strange matter , pulsar , astrophysics , quark star , stars , signature (topology) , compact star , oscillation (cell signaling) , extremely high frequency , mode (computer interface) , millimeter , astronomy , computer science , geometry , mathematics , biology , genetics , operating system
One of the most important questions in the study of compact objects is thenature of pulsars, including whether they consist of neutron matter or strangequark matter (SQM). However, few mechanisms for distinguishing between thesetwo possibilities have been proposed. The purpose of this paper is to show thata strange star (one made of SQM) will have a vibratory mode with an oscillationfrequency of approximately 250 GHz (millimeter wave). This mode corresponds tomotion of the center of the expected crust of normal matter relative to thecenter of the strange quark core, without distortion of either. Radiation fromcurrents generated in the crust at the mode frequency would be a SQM signature.We also consider effects of stellar rotation, estimate power emission andsignal-to-noise ratio, and discuss briefly possible mechanisms for exciting themode.Comment: 13 pages, Latex, one figur
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