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Title: Search for optical millisecond pulsars in globular clusters

Abstract

A search for millisecond optical pulsars in several bright, compact globular clusters was conducted. The sample included M28, and the X-ray clusters 47 Tuc, NGC 6441, NGC 6624, M22, and M15. The globular cluster M28 contains the recently discovered 327 Hz radio pulsar. Upper limits of 4 sigma to pulsed emission of (1-20) solar luminosities were found for the globular clusters tested, and 0.3 solar luminosity for the M28 pulsar for frequencies up to 500 Hz. 8 references.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (USA); Oregon Univ., Eugene (USA); NASA, Ames Research Center, Moffett Field, CA (USA)
OSTI Identifier:
6495047
Resource Type:
Journal Article
Journal Name:
Astrophys. J.; (United States)
Additional Journal Information:
Journal Volume: 335
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; PULSARS; VISIBLE RADIATION; STAR CLUSTERS; COSMIC X-RAY SOURCES; LUMINOSITY; MAGNETIC FIELDS; MASS; NEUTRON STARS; PULSES; RADIOWAVE RADIATION; COSMIC RADIO SOURCES; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; STARS; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources

Citation Formats

Middleditch, J H, Imamura, J N, and Steiman-Cameron, T Y. Search for optical millisecond pulsars in globular clusters. United States: N. p., 1988. Web. doi:10.1086/166963.
Middleditch, J H, Imamura, J N, & Steiman-Cameron, T Y. Search for optical millisecond pulsars in globular clusters. United States. doi:10.1086/166963.
Middleditch, J H, Imamura, J N, and Steiman-Cameron, T Y. Thu . "Search for optical millisecond pulsars in globular clusters". United States. doi:10.1086/166963.
@article{osti_6495047,
title = {Search for optical millisecond pulsars in globular clusters},
author = {Middleditch, J H and Imamura, J N and Steiman-Cameron, T Y},
abstractNote = {A search for millisecond optical pulsars in several bright, compact globular clusters was conducted. The sample included M28, and the X-ray clusters 47 Tuc, NGC 6441, NGC 6624, M22, and M15. The globular cluster M28 contains the recently discovered 327 Hz radio pulsar. Upper limits of 4 sigma to pulsed emission of (1-20) solar luminosities were found for the globular clusters tested, and 0.3 solar luminosity for the M28 pulsar for frequencies up to 500 Hz. 8 references.},
doi = {10.1086/166963},
journal = {Astrophys. J.; (United States)},
number = ,
volume = 335,
place = {United States},
year = {1988},
month = {12}
}