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Hα Emission Variability in Active M Dwarfs
Keaton J. Bell, Eric J. Hilton, James R. A. Davenport +3
We use ~12,000 spectra of ~3,500 magnetically active M0-M9 dwarfs from the Sloan Digital Sky Survey taken at 10-15 minute intervals, together with ~300 spectra of ~60 M0-M8 stars o…
Probing the Flare Atmospheres of M dwarfs Using Infrared Emission Lines
Sarah J. Schmidt, Adam F. Kowalski, Suzanne L. Hawley +3
We present the results of a campaign to monitor active M dwarfs using infrared spectroscopy, supplemented with optical photometry and spectroscopy. We detected 16 flares during nea…
The Implications of M Dwarf Flares on the Detection and Characterization of Exoplanets at Infrared Wavelengths
Benjamin M. Tofflemire, John P. Wisniewski, Adam F. Kowalski +5
We present the results of an observational campaign which obtained high time cadence, high precision, simultaneous optical and IR photometric observations of three M dwarf flare st…
The Multiple Continuum Components in the White Light Flare of 16 January 2009 on the dM4.5e Star YZ CMi
Adam F. Kowalski, Suzanne L. Hawley, Jon A. Holtzman +2
The white light during M dwarf flares has long been known to exhibit the broadband shape of a T~10,000 K blackbody, and the white light in solar flares is thought to arise primaril…
White Light Flare Continuum Observations with ULTRACAM
Adam F. Kowalski, Mihalis Mathioudakis, Suzanne L. Hawley +4
We present sub-second, continuous-coverage photometry of three flares on the dM3.5e star, EQ Peg A, using custom continuum filters with WHT/ULTRACAM. These data provide a new view…
The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III
III collaboration, Hiroaki Aihara, Carlos Allende Prieto +178
The Sloan Digital Sky Survey (SDSS) started a new phase in August 2008, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements…