Observation of small flares and a long-lasting pre-flare dip. on V 1054 Ophiuchi

Details Observation of small flares and a long-lasting pre-flare dip. on V 1054 Ophiuchi Observation of small flares and a long-lasting pre-flare dip. on V 1054 Ophiuchi

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...303..509v&link_type=abstract

Astronomy and Astrophysics, v.303, p.509

Astronomy and Astrophysics

Astrophysics

7

Stars: Flare, Stars: Individual: V 1054 Oph, Stars: Variable

Scientific paper

We report on the observations and analysis of two small flares and of an exceptionally long pre-flare dip observed on V 1054 Oph by a twin-beam UBV photometer that permit to reach high photometric precision. The monitoring of V 1054 Oph has been carried out as part of a project mainly devoted to the detection of low amplitude optical variability and microflares in very active red dwarf flare stars. We discuss our results in the framework of present theories on stellar flares and pre-flare dips, including the particularly severe constraints that the present results - and previous observations of pre-flare dips on FF And - pose on the most relevant flare models.

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