Very low luminosity stars with very large amplitude flares

Journal Article · Sun Apr 01 00:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185699· OSTI ID:6865583

Schaefer, B E ^[1]

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1. NASA, Goddard Space Flight Center, Greenbelt, MD (USA)

CCD frames of CZ Cnc, KY Cep, the gamma-ray burster optical transient, and NSV 12006 are analyzed. Also studied are 549 archival photographic plates of the CZ Cnc field. These observations are compared with the data of Lovas (1976). Flare events on CZ Cnc are examined. Based on the data it is noted that CZ Cnc is a main-sequence star, has a magnitude of 16.1, a distance of 100 pc, occasional large-amplitude flares, and frequent flares with amplitudes greater than 4 mag. 36 refs.

• OSTI ID: 6865583
• Journal Information: Astrophysical Journal; (USA), Vol. 353; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
STARS
LUMINOSITY
STELLAR FLARES
CHARGE-COUPLED DEVICES
COLOR
COMPARATIVE EVALUATIONS
COSMIC GAMMA BURSTS
COSMIC RADIATION
IONIZING RADIATIONS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
PRIMARY COSMIC RADIATION
RADIATIONS
SEMICONDUCTOR DEVICES
STELLAR ACTIVITY
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources