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The first tidal disruption flare in ZTF: from photometric selection to multi-wavelength characterization
Sjoert van Velzen, Suvi Gezari, S. Bradley Cenko +37
We present Zwicky Transient Facility (ZTF) observations of the tidal disruption flare AT2018zr/PS18kh reported by Holoien et al. and detected during ZTF commissioning. The ZTF ligh…
A multi-wavelength approach to classifying transient events in the direction of M31
Monika D. Soraisam, Marat Gilfanov, Thomas Kupfer +4
(abridged) In the hunt for rare time-domain events, confusing exotic extragalactic phenomena with more common Galactic foreground events is an important consideration. We show how…
Variability of Red Supergiants in M31 from the Palomar Transient Factory
Monika D. Soraisam, Lars Bildsten, Maria R. Drout +9
Most massive stars end their lives as Red Supergiants (RSGs), a short-lived evolution phase when they are known to pulsate with varying amplitudes. The RSG period-luminosity (PL) r…
The Binary Dwarf Carbon Star SDSS J125017.90+252427.6
Bruce Margon, Thomas Kupfer, Kevin Burdge +3
Although dwarf carbon (dC) stars are thought universally to be binaries to explain the presence of in their spectra while still near main sequence luminosity, direct observat…