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Radio Properties of RS Canum Venaticorum Variables in VLASS and RACS
Suhasini S. Rao, Gregory R. Sivakoff, Craig O. Heinke +6
We performed a systematic search for radio emission from RS Canum Venaticorum (RS CVn) binaries, selected from the International Variable Star Index (VSX) catalog, in the Very Larg…
An extremely fast fading population II dwarf nova candidate: caught spectroscopically on the rise
Natasha Van Bemmel, Jielai Zhang, Jeff Cooke +14
We present AT2022kak, a rapidly evolving optical transient discovered by the KiloNova and Transients Program (KNTraP). This interesting burst exhibited extremely fast evolution, wi…
A two-minute burst of highly polarised radio emission originating from low Galactic latitude
Dougal Dobie, Andrew Zic, Lucy S. Oswald +19
Several sources of repeating coherent bursts of radio emission with periods of many minutes have now been reported in the literature. These "ultra-long period" (ULP) sources have n…
Periodic Radio Emission from the T8 Dwarf WISE J062309.94-045624.6
Kovi Rose, Joshua Pritchard, Tara Murphy +7
We present the detection of rotationally modulated, circularly polarized radio emission from the T8 brown dwarf WISE J062309.94-045624.6 between 0.9 and 2.0 GHz. We detected this h…
The period-luminosity relation of red supergiants with Gaia DR2
Filip W. Chatys, Timothy R. Bedding, Simon J. Murphy +3
We revisit the K -band period-luminosity (P-L) relations of Galactic red supergiants using Gaia Data Release 2 parallaxes and up to 70 yr of photometry from AAVSO and ASAS campaign…