Publications (6)
Normal or transitional? The evolution and properties of two type Ia supernovae in the Virgo cluster
L. Izzo, C. Gall, N. Khetan +47
Type Ia supernovae (SNe Ia) are among the most precise cosmological distance indicators used to study the expansion history of the Universe. The vast increase of SN Ia data due to…
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631
Y. -Z. Cai, A. Pastorello, M. Fraser +73
We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive st…
SN 2020kyg and the rates of faint Iax Supernovae from ATLAS
Shubham Srivastav, S. J. Smartt, M. E. Huber +17
We present multi-wavelength follow-up observations of the ATLAS discovered faint Iax supernova SN 2020kyg that peaked at an absolute magnitude of , makin…
Late-time H/He-poor circumstellar interaction in the type-Ic supernova SN 2021ocs: an exposed oxygen-magnesium layer and extreme stripping of the progenitor
H. Kuncarayakti, K. Maeda, L. Dessart +14
Supernova (SN) 2021ocs was discovered in the galaxy NGC 7828 () within the interacting system Arp 144, and subsequently classified as a normal type-Ic SN around peak b…
The Cow: discovery of a luminous, hot and rapidly evolving transient
S. J. Prentice, K. Maguire, S. J. Smartt +27
We present the ATLAS discovery and initial analysis of the first 18 days of the unusual transient event, ATLAS18qqn/AT2018cow. It is characterized by a high peak luminosity (…
Design and operation of the ATLAS Transient Science Server
K. W. Smith, S. J. Smartt, D. R. Young +19
The Asteroid Terrestrial impact Last Alert System (ATLAS) system consists of two 0.5m Schmidt telescopes with cameras covering 29 square degrees at plate scale of 1.86 arcsec per p…