155 citations · 886 across the 49 of their papers we have counts for
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Highly bipolar planetary nebula Hen 2-57 and its possible symbiotic core
J. Merc, J. Mikołajewska, K. Iłkiewicz +1
We present a multi-wavelength analysis of the highly bipolar object Hen 2-57 based on new optical spectroscopy from the Southern African Large Telescope (SALT), complemented by arc…
X-ray properties of RR Lyrae and Cepheid variables from eROSITA
Krystian Ilkiewicz, Henryka Netzel
We present a search for X-ray counterparts to RR Lyrae and Cepheid variables using data from the first eROSITA all-sky survey. We identify seven RR Lyrae and eight Cepheid variable…
Identification of new Galactic symbiotic stars with SALT -- II. New discoveries and characterization of the sample
J. Merc, J. Mikołajewska, K. Iłkiewicz +2
We present the continuation of a systematic search for new southern Galactic symbiotic stars, selecting candidates from the SuperCOSMOS H Survey and 2MASS. Follow-up spectroscop…
Blending-induced beating and emission in the symbiotic star Terz V 2513
J. Merc, J. Mikołajewska, C. Gałan +4
We present a detailed analysis of Terz V 2513 (=2MASS J17334728-2719266), a poorly studied symbiotic star. Our motivation was a peculiar beating pattern in its light curves from al…
Circumbinary disc interactions and stochastic dust obscuration in the post-asymptotic-giant-branch binary HD 213985
Krystian Ilkiewicz, Lea Planquart, Tomek Kaminski +1
HD 213985 is an eccentric binary system with a post-AGB primary and a jet-launching secondary star. We confirm that the system photometric variability is likely due to obscuration…
Ancient nova shells of RX Pup indicate evolution of mass transfer rate
Krystian Ilkiewicz, Joanna Mikolajewska, Michael M. Shara +1
RX Pup is a symbiotic binary which experienced a nova outburst in the 1970's. Here we report a discovery of a ~1300 year old nova shell around the system and a possible detection o…