Periodic variability of spotted M dwarfs in WTS

N. T. Goulding, J.R. Barnes, D.J. Pinfield, C. del Burgo, G. Kovacs, J. Birkby, S. Hodgkin, S. Catalan, B. Sipocz, H.R.A. Jones, S.V. Jeffers, S. Nefs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

We present an analysis of the photometric variability of M dwarfs in the WFCAM Transit Survey, selected from spectral types inferred by their WTS and SDSS colours, with periods detected using a Lomb-Scargle Periodogram Analisys. We estimate population membership of these objects from their tangential velocities and photometric parralaxes. Examples of M dwarfs with variable light curve morphologuies are found. We discuss possible causes for this and make use of models of spotted stars in our interpretation of the results.

Original languageEnglish
Title of host publicationHot Planets and Cool Stars
EditorsR. Saglia
PublisherEDP Sciences
Number of pages5
DOIs
Publication statusPublished - 2013
EventConference on Hot Planets and Cool Stars - Garching, Germany
Duration: 12 Nov 201216 Nov 2012

Publication series

NameEPJ Web of Conferences
Volume47
ISSN (Print)2100-014X

Conference

ConferenceConference on Hot Planets and Cool Stars
Country/TerritoryGermany
Period12/11/1216/11/12

Keywords

  • SKY SURVEY DATA
  • FIELD M-DWARFS
  • SPACED DATA
  • ROTATION
  • STARS
  • FLARES
  • SAMPLE
  • 2MASS
  • SDSS

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