SN 2021oyx
RA/DEC (2000)
23:55:27.618 -34:52:29.94
358.865075 -34.8749825
Type
SN Ia-91bg-like
Redshift
0.049921
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2021-06-06 03:36:00.000
TNS AT
Y
Public
Y
Host Name
WISEA J235527.67-345230.5
Host Redshift
0.049921
Discovery Mag
17.7
Filter
g-Sloan
Reporter/s
K. Z. Stanek, C. S. Kochanek, for the ASAS-SN team

Spectra

 SN_2021oyx - 2021-07-02 14:47:38 FTS / FLOYDS-S (Global SN Project)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
100272021-07-02 14:47:38FTS / FLOYDS-S2700Las Cumbres ObservatoryDaichi HiramatsuGlobal SN Project tns_2021oyx_2021-07-02_14-47-38_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2021oyx_2021-07-02_14-47-38_FTS_FLOYDS-S_Global_SN_Project.fitsObjectGlobal SN Project
Light Curves
FilterTel / InstObs-date rangePhotometry
g-SloanASASSN-2_Cassius2021-06-01 09:36:00 - 2021-06-01 09:36:001
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
2192162021-06-01 09:36:0017.6ABMagg-SloanASASSN-2_Cassius[Last non detection]
cyan-ATLASATLAS-HKO_ATLAS-022021-01-07 05:25:26 - 2021-01-07 05:25:261
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
2214662021-01-07 05:25:2619.39ABMagcyan-ATLASATLAS-HKO_ATLAS-0230Robot[Last non detection]
orange-ATLASATLAS-HKO_ATLAS-022021-06-12 14:05:17 - 2021-06-12 14:05:171
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
2214672021-06-12 14:05:1718.0840.10419.25ABMagorange-ATLASATLAS-HKO_ATLAS-0230Robot
g-SloanASASSN-5_Payne-Gaposchkin2021-06-06 03:36:00 - 2021-06-06 03:36:001
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
2192172021-06-06 03:36:0017.7ABMagg-SloanASASSN-5_Payne-Gaposchkin
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
1136612021-06-13 21:30:24ATLAS_Bot1J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)ATLASATLAS23:55:27.618-34:52:29.942021-06-12 14:05:16.80018.084orange-ATLASPSNATLAS21tfcATLAS
1125302021-06-06 20:28:37KZStanekK. Z. Stanek, C. S. Kochanek, for the ASAS-SN teamASAS-SNASAS-SN23:55:27.626-34:52:32.232021-06-06 03:36:00.00017.7g-SloanPSNASASSN-21juASAS-SNPresent in several epochs
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
100102021-07-04 04:02:52dhiramatsuDaichi Hiramatsu, Yael Dgany, Iair Arcavi, Jamison Burke, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Craig PellegrinoGlobal SN ProjectSN Ia-91bg-like0.049921Global SN ProjectUsing Superfit (Howell et al. 2005, ApJ, 634, 1190), we find marginal fits to SN 1991bg around 15 days after maximum at the host redshift of 0.049820 (2017A&A...599A..81M, via NED). However, this classification remains inconclusive due to the strong host contamination. Further follow-up is encouraged for a more firm classification.2021TNSCR2316....1H

Comments

Object coordinates updated according to AT-report 113661 of Group ATLAS
Previous RA, DEC: 23:55:27.626, -34:52:32.23 (358.86511, -34.87562)
Updated RA, DEC: 23:55:27.618, -34:52:29.94 (358.865075, -34.8749825)