6 papers
RX Gru: a short-period pre-main-sequence eclipsing binary with a distant circumbinary companion
F. Marcadon, A. Moharana, T. B. Pawar +4
We report the discovery of a new short-period pre-main-sequence eclipsing binary, RX Gru, orbited by a distant circumbinary companion. We characterized the system by analysing the…
V446 Cephei: a Cep pulsator in a multiple system
A. Moharana, J. Southworth, K. Pavlovski +7
Cep stars in eclipsing binary (EB) systems give us an opportunity to put observational constraints on their structure and stellar parameters. We present a comprehensive analys…
Finding the elusive RR Lyrae companions via speckle imaging
R. Salinas, V. Kalari, G. Hajdu +25
Despite their key role in astrophysics, the binary properties of RR Lyrae stars (RRL) remain almost completely unknown since only a single RRL is confirmed as belonging to a binary…
An in-depth study of brown dwarfs with TESS
F. Marcadon, A. Prša
The existence of a deficit of brown dwarfs (BDs) in close orbit around main-sequence stars is one of the most intriguing questions in stellar physics. This so-called BD desert may…
A comprehensive study of Scuti-type pulsators in eclipsing binaries: oscillating eclipsing Algols
T. B. Pawar, A. Miszuda, K. G. HeÅminiak +4
Eclipsing double-lined spectroscopic binaries hosting Scuti-type pulsators offer a unique laboratory for simultaneously constraining stellar geometry and interior structure. I…
Precision timing of eclipsing binaries from TESS full frame images. Method and performance
Frédéric Marcadon, Andrej Prša
Several hundreds of thousands of eclipsing binaries (EBs) are expected to be detected in the Transiting Exoplanet Survey Satellite (TESS) full frame images (FFIs). This represents…