RA/DEC (2000)
06:31:55.004 +35:33:23.77
97.9791843379 +35.5566019315
Type
SN Ia-91bg-like
Redshift
0.027
Related AstroNotes: 2021-320
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2021-12-23 14:05:16.800
TNS AT
Y
Public
Y
Discovery Mag
17.7
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), A. Heinze, B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, M. Fulton, J. Gillanders, T. Moore, C. Richman, L. Cai (Queen's University Belfast), T.-W. Chen (Stockholm), D. E. Wright (University of Minnesota), J. Anderson (ESO)
Spectra
▌SN_2021agnf - 2021-12-24 18:57:36 Lijiang-2.4m / YFOSC (None)z=
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▌Show Tellurics
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Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
Comments
TNS System (WIS)
Wed, 01/12/2022 - 11:08
Object coordinates updated
Object coordinates updated according to AT-report 133788 of Group Pan-STARRS1
Previous RA, DEC: 06:31:55.014, +35:33:23.69 (97.9792255556, +35.55658)
Updated RA, DEC: 06:31:55.004, +35:33:23.77 (97.9791843379, 35.5566019315)
Dr. Jujia Zhang (Yunnan Observatories,CAS)
Sat, 12/25/2021 - 02:46
The phase of the classification spectrum is around the peak
Cross-correlation with the library of supernova spectra using the comparison tool SNID (Blondin and Tonry 2007, ApJ, 666, 1024) shows that it matches SN 1991bg at t = +3 days at the given redshift = 0.023 of the host galaxy CGCG 175-003.