We perform a study of stellar flares for the 24,809 stars observed with 2 minute cadence
during the first two months of the TESS mission. Flares may erode exoplanets' atmospheres …

The detection of transiting exoplanets in time-series photometry requires the removal or
modeling of instrumental and stellar noise. While instrumental systematics can be reduced …

Context. Several planetary formation models have been proposed to explain the observed
abundance and variety of compositions of super-Earths and mini-Neptunes. In this context …

One of the primary goals of exoplanetary science is to detect small, temperate planets
passing (transiting) in front of bright and quiet host stars. This enables the characterization of …

We present allesfitter, a public and open-source Python software for flexible and robust
inference of stars and exoplanets given photometric and radial velocity data. Allesfitter offers …

We analyze light curves of 284,834 unique K2 targets using a Gaussian process model with
a quasi-periodic kernel function. By cross-matching K2 stars to observations from Gaia Data …

To date, thousands of planets have been discovered, but there are regions of the orbital
parameter space that are still bare. An example is the short period and intermediate …

GJ 9827 is a bright, nearby K7V star orbited by two super-Earths and one mini-Neptune on
close-in orbits. The system was first discovered using K2 data and then further characterized …

Fulfilling the rich promise of rapid advances in time-domain astronomy is only possible
through confronting our observations with physical models and extracting the parameters …

We present the discovery of two exoplanets transiting TOI-836 (TIC 440887364) using data
from TESS Sector 11 and Sector 38. TOI-836 is a bright (T= 8.5 mag), high proper motion (∼ …