238 citations · 5.4k across the 176 of their papers we have counts for
10 papers · 1 filter
Lower-than-expected flare temperatures for TRAPPIST-1
A. J. Maas, E. Ilin, M. Oshagh +12
Although high energetic radiation from flares is a potential threat to exoplanet atmospheres and may lead to surface sterilization, it might also provide the extra energy for low-m…
TOI-2119: A transiting brown dwarf orbiting an active M-dwarf from NASA's TESS mission
Theron W. Carmichael, Jonathan M. Irwin, Felipe Murgas +27
We report the discovery of TOI-2119b, a transiting brown dwarf (BD) that orbits and is completely eclipsed by an active M-dwarf star. Using light curve data from the Transiting Exo…
Simultaneous photometric and CARMENES spectroscopic monitoring of fast-rotating M dwarf GJ 3270. Discovery of a post-flare corotating feature
E. N. Johnson, S. Czesla, B. Fuhrmeister +33
Context: Active M dwarfs frequently exhibit large flares, which can pose an existential threat to the habitability of any planet in orbit in addition to making said planets more di…
The BRITE-SONG of Aldebaran -- Stellar Music in three voices
P. G. Beck, R. Kuschnig, G. Houdek +20
Solar-like oscillations in red-giant stars are now commonly detected in thousands of stars with space telescopes such as the NASA Kepler mission. Parallel radial velocity and photo…
Stellar activity and rotation of the planet host Kepler-17 from long-term space-borne photometry
A. F. Lanza, Y. Netto, A. S. Bonomo +3
The study of young Sun-like stars is of fundamental importance to understand the magnetic activity and rotational evolution of the Sun. Space-borne photometry by the Kepler telesco…
The K2 M67 Study: A Curiously Young Star in an Eclipsing Binary in an Old Open Cluster
Eric L. Sandquist, Robert D. Mathieu, Samuel N. Quinn +16
We present an analysis of a slightly eccentric (), partially eclipsing long-period ( d) main sequence binary system (WOCS 12009, Sanders 1247) in the benchmark o…
K2SC: Flexible systematics correction and detrending of K2 light curves using Gaussian Process regression
Suzanne Aigrain, Hannu Parviainen, Benjamin Pope
We present K2SC (K2 Systematics Correction), a Python pipeline to model instrumental systematics and astrophysical variability in light curves from the K2 mission. K2SC uses Gaussi…
Monitoring young associations and open clusters with Kepler in two-wheel mode
S. Aigrain, S. Alencar, R. Angus +14
We outline a proposal to use the Kepler spacecraft in two-wheel mode to monitor a handful of young associations and open clusters, for a few weeks each. Judging from the experience…
From CoRoT 102899501 to the Sun. A time evolution model of chromospheric activity on the main sequence
P. Gondoin, D. Gandolfi, M. Fridlund +7
Using a model based on the rotational modulation of the visibility of active regions, we analyse the high-accuracy CoRoT lightcurve of the active young star CoRoT102899501. Spectro…
Detection of transit timing variations in excess of one hour in the Kepler multi-planet candidate system KOI 806 with the GTC
Brandon Tingley, Enric Palle, Hannu Parviainen +7
We report the detection of transit timing variations (TTVs) well in excess of one hour in the Kepler multi-planet candidate system KOI 806. This system exhibits transits consistent…