Abstract We present the Spectroscopic Classification of Astronomical Transients (SCAT)
survey, which is dedicated to spectrophotometric observations of transient objects such as …

Massive stars play a major role in the evolution of their host galaxies and serve as important
probes of the distant Universe. It has been established that the majority of massive stars …

We present a public catalog of transients from the Zwicky Transient Facility (ZTF) Bright
Transient Survey, a magnitude-limited (m< 19 mag in either the g or r filter) survey for …

We present the Stage II results from the ongoing Satellites Around Galactic Analogs (SAGA)
Survey. Upon completion, the SAGA Survey will spectroscopically identify satellite galaxies …

The Dark Energy Spectroscopic Instrument (DESI) completed its 5 month Survey Validation
in 2021 May. Spectra of stellar and extragalactic targets from Survey Validation constitute …

While tidal disruption events (TDEs) have long been heralded as laboratories for the study of
quiescent black holes, the small number of known TDEs and uncertainties in their emission …

Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when
supermassive black holes at the centres of galaxies violently disrupt a star that passes too …

The final fate of massive stars, and the nature of the compact remnants they leave behind
(black holes and neutron stars), are open questions in astrophysics. Many massive stars are …

The accretion disks of active galactic nuclei (AGNs) are promising locations for the merger of
compact objects detected by gravitational wave (GW) observatories. Embedded within a …

We present observations of SN 2021csp, the second example of a newly identified type of
supernova (SN) hallmarked by strong, narrow, P Cygni carbon features at early times (Type …