Classification certificate for object 2020vw
TNS Classification Report No. 6136 [ 2020TNSCR.498....1M ]

Date Received (UTC): 2020-02-14 23:47:48
Sender: Daichi Hiramatsu
Group: None

Curtis McCully (LCO), Daichi Hiramatsu (LCO/UCSB), Jamison Burke (LCO/UCSB), Jennifer Andrews (UA), Craig Peligrino (LCO/UCSB), D. Andrew Howell (LCO/UCSB), Iair Arcavi (Tel Aviv University), Reinaldo de Carvalho: (Unicid/Unicsul), Francisco Förster (Universidad de Chile), Ryan Foley (UCSC), David Coulter (UCSC), Charles Kilpatrick (UCSC), David Sand (UA), Stefano Valenti (UC Davis), Marcelle Soares-Santos (Brandeis), Sandro Rembold (UFSM), Armin Rest (STSci), Daniel Kasen (UC Berkeley), Brian Metzger (Columbia), Anthony Piro (Carnegie Obs.), Eliot Quataert (UC Berkeley), Enrico Ramirez-Ruiz (UCSC), J. Craig Wheeler (UT Austin), Franz Bauer (Pontificia Universidad Catolica de Chile), Joshua Bloom (UC Berkeley), Thomas Brink (UC Berkeley), Jeff Cooke (Swinburne University of Technology), Alejandro Clocchiatti (Pontificia Universidad Catolica de Chile), Alexei V. Filippenko (UC Berkeley), Wendy Freedman (University of Chicago), Peter Garnavich (Notre Dame), Jorge Ernesto Horvath (Universidade de Sao Paulo), Saurabh Jha (Rutgers), Robert Kirshner (Gordon and Betty Moore Foundation), Kevin Krisciunas (Texas A&M), Huan Lin (FNAL), Barry Madore (Carnegie Obs.), Martin Makler (Centro Brasileiro de Pesquisas Físicas), Gautham Narayan (UIUC), Xavier Prochaska (UCSC), Adam Riess (STSci), Riccardo Sturani (UFRN), Nicholas Suntzeff (Texas A&M), Masaomi Tanaka (Tohoku University), Douglas Tucker (FNAL), Jozsef Vinko (Konkoly Observatory), Lifan Wang (Texas A&M), Carlos Contreras (STSci), Chris D'Andrea (UPenn), Georgios Dimitriadis (UCSC), David Jones (UCSC), Michael Lundquist (UA), Felipe Olivares (INCT/UDA), Antonella Palmese (FNAL), Yen-Chen Pan: (NAOJ), Daniel Scolnic (University of Chicago), WeiKang Zheng (UC Berkeley), Antonio Bernardo (Universidade de Sao Paulo), K. Azalee Bostroem (UC Davis), Ariadna Murguia Berthier (UCSC), Ósmar Rodríguez (Universidad Nacional Andres Bello), César Rojas-Bravo (UCSC), Matthew Siebert (UCSC), and Iruatã Souza (Centro Brasileiro de Pesquisas) report/s a classification of object: SN 2020vw

Type: SN Ia
Redshift: 0.23

Remarks: The best fits from SNID (Blondin & Tonry 2007, ApJ, 666, 1024) and Superfit (Howell et al. 2005, ApJ, 634, 1190) are normal SN Ia SNe near peak brightness at z = 0.23, consistent with the absolute magnitude estimate of -19.0 at that distance.

The following Classification spectrum was provided:

Obsdate: 2020-01-16 06:42:16
Instrument: GMOS-S
Telescope: Gemini South

Details of the object and its spectra can be viewed here: https://wis-tns.weizmann.ac.il/object/2020vw