Periodic variability of spotted M dwarfs in WTS

Goulding, N. T., Barnes, J.R., Pinfield, D.J., del Burgo, C., Kovacs, G., Birkby, J., Hodgkin, S., Catalan, S., Sipocz, B., Jones, H.R.A., Jeffers, S.V. and Nefs, S. (2013) Periodic variability of spotted M dwarfs in WTS. In: Conference on Hot Planets and Cool Stars, 2012-11-12 - 2012-11-16, Garching.
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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.
Item Type Conference or Workshop Item (Other)
Additional information This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords sky survey data, field m-dwarfs, spaced data, rotation, stars, flares, sample, 2mass, sdss
Date Deposited 15 May 2025 16:34
Last Modified 10 Jul 2025 23:32

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