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

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 si...

Full description

Saved in:
Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2014-08, Vol.442 (4), p.2926-2928
Main Authors: Ramsay, Gavin, Doyle, J. Gerry
Format: Article
Language:English
Subjects:
Astrophysics
Comparative studies
Dwarf stars
Flare stars
Flares
Kepler mission (NASA)
Light curve
Luminosity
Modulation
Orbits
Signatures
Star & galaxy formation
Stellar rotation
Citations: Items that this one cites
Items that cite this one
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 will present a unique opportunity to study the rotation and flare properties of late-type dwarf stars with different ages and mass.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stu1063