Search for optical millisecond pulsars in globular clusters

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166963· OSTI ID:6495047

Middleditch, J H; Imamura, J N; Steiman-Cameron, T Y

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.

• Research Organization: Los Alamos National Lab., NM (USA); Oregon Univ., Eugene (USA); NASA, Ames Research Center, Moffett Field, CA (USA)
• OSTI ID: 6495047
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 335; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
LUMINOSITY
MAGNETIC FIELDS
MASS
NEUTRON STARS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PULSARS
PULSES
RADIATIONS
RADIOWAVE RADIATION
STAR CLUSTERS
STARS
VISIBLE RADIATION