Millimeter-Wave Signature of Strange Matter Stars

Autor:	Marc Sher, David L. Morgan, Doris C. Rosenbaum, Vigdor L. Teplitz, Timothy P. Krisher, Eugene Herrin, J. J. Broderick
Rok vydání:	1998
Předmět:	Physics Strange quark Oscillation Stellar rotation Astrophysics (astro-ph) FOS: Physical sciences Astronomy and Astrophysics Astrophysics High Energy Physics - Phenomenology Strange matter Stars High Energy Physics - Phenomenology (hep-ph) Pulsar Quark star Space and Planetary Science Neutron
Zdroj:	The Astrophysical Journal. 492:L71-L74
ISSN:	0004-637X
DOI:	10.1086/311078
Popis:	One of the most important questions in the study of compact objects is the nature of pulsars, including whether they consist of neutron matter or strange quark matter (SQM). However, few mechanisms for distinguishing between these two possibilities have been proposed. The purpose of this paper is to show that a strange star (one made of SQM) will have a vibratory mode with an oscillation frequency of approximately 250 GHz (millimeter wave). This mode corresponds to motion of the center of the expected crust of normal matter relative to the center of the strange quark core, without distortion of either. Radiation from currents generated in the crust at the mode frequency would be a SQM signature. We also consider effects of stellar rotation, estimate power emission and signal-to-noise ratio, and discuss briefly possible mechanisms for exciting the mode. 13 pages, Latex, one figure
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7030779d81488226564dbbcb4ded6578 https://doi.org/10.1086/311078 Zobrazit plný text záznamu