The M4.5V flare star AF Psc as seen in K2 engineering data

Abstract

We present the light curve of the little studied flare star AF Psc (M4.5V) obtained using engineering data from the K2 mission. Data were obtained in Long Cadence mode giving an effective exposure of 29 min and nearly 9 d of coverage. A clear modulation on a period of 1.08 d was seen which is the signature of the stellar rotation period. We identify 14 flares in the light curve, with the most luminous flares apparently coming from the same active region. We compare the flare characteristics of AF Psc to two M4V flare stars studied using kepler data. The K2 mission, if given approval, will present a unique opportunity to study the rotation and flare properties of late type dwarf stars with different ages and mass.

arXiv commentAccepted by MNRAS

References in corpus (8)

• The K2 Mission: Characterization and Early results
• Kepler Mission Design, Realized Photometric Performance, and Early Science
• Constraining the Age-Activity Relation for Cool Stars: The SDSS DR5 Low-Mass Star Spectroscopic Sample
• Superflares on Solar Type Stars Observed with Kepler I. Statistical Properties of Superflares
• White-light flares on cool stars in the Kepler Quarter 1 Data
• Kepler Monitoring of an L Dwarf I. The Photometric Period and White Light Flares
• GALEX high time-resolution ultraviolet observations of dMe flare events
• Short duration high amplitude flares detected on the M dwarf star KIC 5474065

Cited by in corpus (4)

• Stellar flares observed in long cadence data from the Kepler mission
• Reaching the boundary between stellar kinematic groups and very wide binaries. III. Sixteen new stars and eight new wide systems in the beta Pictoris moving group
• Do long-cadence data of {\it Kepler} satellite capture the basic properties of flares ?
• The view from K2: Questioning the traditional view of flaring on early dM stars