102 citations · 386 across the 12 of their papers we have counts for
5 papers · 1 filter
Long-term stellar activity variations and their effect on radial-velocity measurements
Jean C. Costes, Christopher A. Watson, Ernst de Mooij +8
Long-term stellar activity variations can affect the detectability of long-period and Earth-analogue extrasolar planets. We have, for 54 stars, analysed the long-term trend of five…
The spectral impact of magnetic activity on disk-integrated HARPS-N solar observations: exploring new activity indicators
A. P. G. Thompson, C. A. Watson, R. D. Haywood +21
Stellar activity is the major roadblock on the path to finding true Earth-analogue planets with the Doppler technique. Thus, identifying new indicators that better trace magnetic a…
A low-mass eclipsing binary within the fully convective zone from the NGTS
S. L. Casewell, L. Raynard, C. A. Watson +22
We have discovered a new, near-equal mass, eclipsing M dwarf binary from the Next Generation Transit Survey. This system is only one of 3 field age ( 1 Gyr), late M dwarf eclips…
Ground-based detection of G star superflares with NGTS
James A. G. Jackman, Peter J. Wheatley, Chloe E. Pugh +19
We present high cadence detections of two superflares from a bright G8 star (V = 11.56) with the Next Generation Transit Survey (NGTS). We improve upon previous superflare detectio…
The Changing Face of Centauri B: Probing plage and stellar activity in K-dwarfs
A. P. G. Thompson, C. A. Watson, E. J. W. de Mooij +1
A detailed knowledge of stellar activity is crucial for understanding stellar dynamos, as well as pushing exoplanet radial-velocity detection limits towards Earth analogue confirma…