The ASAS-SN Bright Supernova Catalog -- V. 2018-2020

Abstract

We catalog the 443 bright supernovae discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) in $2018-2020$ along with the 519 supernovae recovered by ASAS-SN and 516 additional $m_{peak}\le 18$ mag supernovae missed by ASAS-SN. Our statistical analysis focuses primarily on the 984 supernovae discovered or recovered in ASAS-SN $g$-band observations. The complete sample of 2427 ASAS-SN supernovae includes earlier $V$-band samples and unrecovered supernovae. For each supernova, we identify the host galaxy, its UV to mid-IR photometry, and the offset of the supernova from the center of the host. Updated light curves, redshifts, classifications, and host galaxy identifications supersede earlier results. With the increase of the limiting magnitude to $g\le 18$ mag, the ASAS-SN sample is roughly complete up to $m_{peak}=16.7$ mag and is $90\%$ complete for $m_{peak}\le 17.0$ mag. This is an increase from the $V$-band sample where it was roughly complete up to $m_{peak}=16.2$ mag and $70\%$ complete for $m_{peak}\le 17.0$ mag.

14 pages, 7 figures, 4 tables. Updated to reflect changes made in the published version. Tables containing the catalog data presented in this submission are included in machine-readable format as ancillary files

References in corpus (11)

• Array Programming with NumPy
• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The All-Sky Automated Survey for Supernovae (ASAS-SN) Light Curve Server v1.0
• Determining the Type, Redshift, and Age of a Supernova Spectrum
• The Zwicky Transient Facility Catalog of Periodic Variable Stars
• ESC Supernova spectroscopy of non-ESC targets
• The volumetric rate of normal type Ia supernovae in the local universe discovered by the Palomar Transient Factory
• The ASAS-SN Bright Supernova Catalog $-$ II. 2015
• Classical Novae Masquerading as Dwarf Novae? Outburst Properties of Cataclysmic Variables with ASAS-SN
• The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys

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• A characterization of ASAS-SN core-collapse supernova environments with VLT+MUSE: I. Sample selection, analysis of local environments, and correlations with light curve properties
• The Large Array Survey Telescope -- Science Goals
• A metallicity dependence on the occurrence of core-collapse supernovae
• Timing coincidence search for supernova neutrinos with optical transient surveys
• Electromagnetic Waves in Cosmological Space-Time II. Luminosity Distance
• A study on late time UV-emission in core collapse supernovae and the implications for the peculiar transient AT2018cow
• Science with a large field-of-view polarization survey: The Large Array Survey Telescope Polarization Node (LAST-P)