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The main-sequence rotation-colour relation in the Coma Berenices open cluster
We present the results of a photometric survey of rotation rates in the Coma Berenices (Melotte 111) open cluster, using data obtained as part of the SuperWASP exoplanetary transit-search programme.Expand
An Empirical Correction for Activity Effects on the Temperatures, Radii, and Estimated Masses of Low-mass Stars and Brown Dwarfs
We present empirical relations for determining the amount by which the effective temperatures and radii—and therefore the estimated masses—of low-mass stars and brown dwarfs are altered due toExpand
LAMP: the long-term accretion monitoring programme of T Tauri stars in Chamaeleon I
We present the results of a variability study of accreting yo ung stellar objects in the Chameleon I star-forming region which is based on � 300 high resolution optical spectra from the multiobjectExpand
PROTOPLANETARY DISK MASSES FROM STARS TO BROWN DWARFS
Part of the work by A.S. was funded by the Science Foundation Ireland through grant 10/RFP/AST2780.
A systematic survey for eruptive young stellar objects using mid-infrared photometry
Accretion in young stellar objects (YSOs) is at least partially episodic, i.e. periods with high accretion rates ('bursts') are interspersed by quiescent phases. These bursts manifest themselves asExpand
The frequency of large variations in the near-infrared fluxes of T Tauri stars
Variability is a characteristic feature of young stellar objects (YSOs) and could contribute to the large scatter observed in Hertzsprung–Russell (HR) diagrams for star-forming regions. For typicalExpand
Temperaments of young stars: rapid mass accretion rate changes in T Tauri and Herbig Ae stars
Variability in emission lines is a characteristic feature in young stars and can be used as a tool to study the physics of the accretion process. Here, we present a study of Hα variability in 15 TExpand
Rotation and Activity of Pre-Main-Sequence Stars
We present a study of rotation (v sin i) and chromospheric activity (H? equivalent width) based on an extensive set of high-resolution optical spectra obtained with the MIKE instrument on the 6.5 mExpand
SUBSTELLAR OBJECTS IN NEARBY YOUNG CLUSTERS (SONYC). IV. A CENSUS OF VERY LOW MASS OBJECTS IN NGC 1333
SONYC—Substellar Objects in Nearby Young Clusters—is a program to investigate the frequency and properties of young substellar objects with masses down to a few times that of Jupiter. Here we presentExpand
Rotation periods for very low mass stars in Praesepe
We investigate the rotation periods of fully convective very low mass stars (VLM, M < 0:3M� ), with the aim to derive empirical constraints for the spindown due to magnetically driven stellar winds.Expand
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