activity
20202026
most citedThe nature of the symbiotic candidate 2MASS J07363415+6538548 in the field of NGC 2403

10 citations · 12 across the 5 of their papers we have counts for

collaborators

7 papers

astro-ph.SR2026

A Distinct Type of Standstill in Ultra-Compact White Dwarf Binaries

Jan Kára, Liliana Rivera Sandoval, Iwona Kotko +3

AM CVn stars are ultra-compact, semi-detached binaries consisting of a white dwarf primary and a hydrogen-poor secondary. In this work, we analyse the AM CVn-type systems MGAB-V270…

astro-ph.SR2026

COPAS: Compact Objects and the Physics of Accretion Survey I. Accreting Binaries with P < 83 Minutes

Wendy Mendoza, Liliana Rivera Sandoval, Jan Kára +9

We present the first results from the Compact Objects and the Physics of Accretion Survey (COPAS), a high-cadence photometric survey focused on the detection of accreting white dwa…

astro-ph.SR2026

K 1-6 is a photoionised ISM nebula shaped by a fast-moving hot white dwarf in a triple system

Jaroslav Merc, David Jones, Ana Escorza +22

K 1-6 has long been classified as a planetary nebula (PN) hosting a binary central star, yet it has remained poorly studied due to its faintness. The central star exhibits pronounc…

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.SR2023★ 2 cited

Structure of the accretion flow of IX Velorum as revealed by high-resolution spectroscopy

Jan Kára, Linda Schmidtobreick, Anna Francesca Pala +1

Context: Several high-mass transfer cataclysmic variables show evidence for outflow from the system, which could play an important role in their evolution. We investigate the syste…

astro-ph.SR2020★ 10 cited

The nature of the symbiotic candidate 2MASS J07363415+6538548 in the field of NGC 2403

Jaroslav Merc, Rudolf Gális, Jan Kára +2

New Online Database of Symbiotic Variables includes several poorly characterised objects and candidate symbiotic stars, not only in the Milky Way but also in other galaxies. The go…