AstroNote 2020-193

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2020-10-14 17:47:13
Type: Object/s-Discovery/Classification
ZTF Bright Transient Survey classification of SN 2020ttu
Authors: A. A. Miller (Northwestern), X. Hall (Caltech), on behalf of the Zwicky Transient Facility collaboration
Source Group: ZTF
Keywords: Supernova
We report the spectral classification of SN 2020ttu as a Type II supernova with the Low Resolution Imaging Spectrometer (range 320-1020nm, spectral resolution R~1100) mounted on the 10m Keck-I telescope, and reduced with lpipe (Perley, D. A. 2019, PASP, 131, 084503). The classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024).

The best SNID match for SN 2020ttu (ZTF20acaiztt) is SN 2004fx at a phase of 31 days after maximum light. Many other normal SNe II provide good matches as well.

ZTF is a project led by PI S. R. Kulkarni at Caltech, and includes IPAC; WIS, Israel; OKC, Sweden; JSI/UMd, USA; UW,USA; DESY, Germany; NRC, Taiwan; UW Milwaukee, USA and LANL USA. ZTF acknowledges the generous support of the NSF under AST MSIP Grant No 1440341. Alert distribution service provided by the DiRAC Institute at the University of Washington. Alert filtering is being undertaken by the GROWTH marshal system, supported by NSF PIRE grant 1545949. W. M. Keck Observatory access was supported by Northwestern University and the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA).

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020ttu [ZTF20acaiztt]02:47:12.110+41:24:35.70SN II0.0602:47:12.111+41:24:35.67SN II0.05