activity
20152026
most citedPeriodic variable A-F spectral type stars in the northern TESS continuous viewing zone

35 citations · 72 across the 8 of their papers we have counts for

collaborators

10 papers

astro-ph.SR2026

TIC 366240660 - A Dynamically Active Triple With a Very Short Outer Period of 30.5 Days

S. A. Rappaport, T. Borkovits, G. Torres +17

Methods: We analyze TESS photometric data, radial velocity measurements, and eclipse timing variation curves for the triple star system, TIC 366240660, with a photodynamical code t…

astro-ph.SR2026

Six new doubly eclipsing quadruples in a 2+2 architecture

P. Zasche, H. Kucakova, J. Kara +5

The study presents a confirmation of six quadruples with two sets of eclipses that have the 2+2 architecture. These so-called doubly eclipsing systems still present a quite rare gr…

astro-ph.SR2026

TIC 433545934: The first 2+2 type doubly eclipsing binary with extra, mutual eclipses

Tamás Borkovits, Saul A. Rappaport, Petr Zasche +5

In this work we identify and photodynamically analyze TIC 433545934, the very first doubly eclipsing 2+2-type quadruple stellar system, which shows outer eclipses, too. One such ou…

astro-ph.SR2025

Three new 2+2 quadruple systems with changing inclination

P. Zasche, Z. Henzl, M. Mašek +4

We present a unique discovery of three new detected systems showing two different phenomena together. These are 2+2 quadruple stellar systems showing two eclipsing binaries as the…

astro-ph.SR2025

TESS light curves and period changes in low-mass eclipsing binary BB Persei

Marek Wolf, Petr Zasche, Miloslav Zejda +7

We present a detailed analysis of the low-mass detached eclipsing binary system BB Persei, which contains two K-type stars in a circular orbit with a short period of 0.4856 d. We u…

astro-ph.SR2024

Apsidal motion and TESS light curves of three southern close eccentric eclipsing binaries: GM Nor, V397 Pup, and PT Vel

M. Wolf, P. Zasche, J. Kára +10

New ground-based and space-based photometric data have been obtained and archival spectroscopic measurements were used in this study of three detached early-type and southern-hemis…

astro-ph.SR2022★ 35 cited

Periodic variable A-F spectral type stars in the northern TESS continuous viewing zone

M. Skarka, J. Žák, M. Fedurco +11

The goal of our study is to provide a reliable classification of variability of A-F stars brighter than 11 mag located in the northern TESS continuous viewing zone. We also aim at…

astro-ph.SR2020★ 7 cited

Light-time effect detected in fourteen eclipsing binaries

P. Zasche, R. Uhlar, P. Svoboda +2

The available minima timings of 14 selected eclipsing binaries (V1297 Cas, HD 24105, KU Aur, GU CMa, GH Mon, AZ Vel, DI Lyn, DK Her, GQ Dra, V624 Her, V1134 Her, KIC 6187893, V1928…

astro-ph.SR2019★ 29 cited

Doubly eclipsing systems

P. Zasche, D. Vokrouhlicky, M. Wolf +6

Aims: Our goal was to increase number of known doubly eclipsing systems such that the resulting dataset would allow to study them via statistical means, as well as prove that they…

astro-ph.SR2015★ 1 cited

The study of triple systems V949 Cen, V358 Pup, and V1055 Sco

P. Zasche, K. Honkova, J. Jurysek +1

The systems V949 Cen, V358 Pup, and V1055 Sco are triples comprised of an eclipsing binary orbiting with a distant visual component on a much longer orbit. The first detailed photo…