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Unveiling the period-bounce population of cataclysmic variables: Spectroscopic and time-domain follow-up of eROSITA-selected candidates
S. Hernández-Díaz, B. Stelzer, A. Schwope +9
During their secular evolution, cataclysmic variable stars (CVs) evolve toward shorter orbital periods () until reaching a minimum near min, after…
The Volans-Carina association An X-ray Bridge Between Younger and Older Stellar Populations
Daniela Muñoz-Giraldo, Beate Stelzer, Alex Binks +3
Nearby young moving groups (NYMGs) provide benchmarks for studying the evolution of magnetic activity and planetary environments at early ages. The Volans-Carina association (VCA),…
Balmer decrements as a new diagnostic for period-bounce Cataclysmic Variable stars
Santiago Hernández-Díaz, Beate Stelzer, Daniela Muñoz-Giraldo
Cataclysmic variable stars (CVs) evolve toward shorter orbital periods () until they reach a minimum near min. Beyond this point, the…
A systematic search for orbital periods of polars with TESS. Methods, detection limits, and results
Santiago Hernández-Díaz, Beate Stelzer, Axel Schwope +1
Context. Determining the orbital periods of cataclysmic variable stars (CVs) is essential for confirming candidates and for the understanding of their evolutionary state. The Trans…
eROSITA-selection of new period-bounce Cataclysmic Variables: First follow-up confirmation using TESS and SDSS
Daniela Muñoz-Giraldo, Beate Stelzer, Axel Schwope +3
Between 40 and 80 of cataclysmic variables (CVs) are expected to have evolved past the period-minimum and contain a degenerate donor. However, observational surveys for CVs…
The Sydney Radio Star Catalogue: properties of radio stars at megahertz to gigahertz frequencies
Laura N. Driessen, Joshua Pritchard, Tara Murphy +12
We present the Sydney Radio Star Catalogue, a new catalogue of stars detected at megahertz to gigahertz radio frequencies. It consists of 839 unique stars with 3,405 radio detectio…