SN 2020zyy
RA/DEC (2000)
06:16:39.250 -21:29:59.28
94.163542 -21.4998
Type
SN Ia-91T-like
Redshift
0.059
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2020-11-16 11:15:21.600
TNS AT
Y
Public
Y
Discovery Mag
18.977
Filter
cyan-ATLAS
Reporter/s
J. 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 (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)

Spectra

 SN_2020zyy - 2020-11-19 10:50:13 FTN / FLOYDS-N (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
80492020-11-19 10:50:13FTN / FLOYDS-N3600Las Cumbres ObservatoryDaichi HiramatsuGlobal SN Project tns_2020zyy_2020-11-19_10-50-13_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2020zyy_2020-11-19_10-50-13_FTN_FLOYDS-N_Global_SN_Project.fitsObjectGlobal SN Project
Light Curves
FilterTel / InstObs-date rangePhotometry
i-SloanPS1_GPC12020-11-19 12:24:29 - 2020-11-19 12:24:291
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1739432020-11-19 12:24:2918.620.0720.7ABMagi-SloanPS1_GPC127Robot
cyan-ATLASATLAS1_ACAM12020-11-16 11:15:22 - 2020-11-16 11:15:221
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1721802020-11-16 11:15:2218.9770.11619.62ABMagcyan-ATLASATLAS1_ACAM130Robot
orange-ATLASATLAS1_ACAM12020-11-14 11:49:55 - 2020-11-14 11:49:551
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1721792020-11-14 11:49:5519.5ABMagorange-ATLASATLAS1_ACAM130Robot[Last non detection]
G-GaiaGaia_Gaia-photometric2020-10-16 02:05:17 - 2020-11-27 05:57:072
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1750162020-11-27 05:57:0718.140.2ABMagG-GaiaGaia_Gaia-photometric60Robot
1750152020-10-16 02:05:1721.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
g-ZTFP48_ZTF-Cam2020-11-06 12:06:33 - 2020-11-17 10:04:216
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1731692020-11-17 10:04:2118.610.0820.23ABMagg-ZTFP48_ZTF-Cam30
1723592020-11-16 11:06:4318.88ABMagg-ZTFP48_ZTF-Cam30ZTF
1731682020-11-16 11:06:1818.880.1319.99ABMagg-ZTFP48_ZTF-Cam30
1755052020-11-12 10:34:0020.13410.31096420.2313ABMagg-ZTFP48_ZTF-Cam30RobotData provided by ZTF, classified by Fink
1723582020-11-12 10:33:3620.13ABMagg-ZTFP48_ZTF-Cam30ZTF
1755042020-11-06 12:06:3319.6572ABMagg-ZTFP48_ZTF-Cam30Robot[Last non detection] Data provided by ZTF, classified by Fink
r-ZTFP48_ZTF-Cam2020-11-12 10:01:55 - 2020-11-16 09:47:212
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1731672020-11-16 09:47:2119.7976ABMagr-ZTFP48_ZTF-Cam30[Last non detection]
1723572020-11-12 10:01:5520.16ABMagr-ZTFP48_ZTF-Cam30ZTF[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
911602020-11-30 06:20:21FinkJulien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink brokerFinkZTF06:16:39.243-21:29:59.282020-11-12 10:34:00.00220.1341g-ZTFPSNZTF20acqfssiZTFEarly SN candidate classified by Fink using the public ZTF stream. Object data at http://134.158.75.151:24000/ZTF20acqfssi
909742020-11-29 12:28:05Gaia_Bot1S.T. Hodgkin, E. Breedt, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, T. Wevers, A. Yoldas (IoA Cambridge), N. Ihanec, K. Kruszyńska, K.A. Rybicki, Ł. Wyrzykowski (Warsaw University Astronomical Observatory), Z. Kostrzewa-Rutkowska (Leiden Observatory), D. Eappachen (SRON/RU), G. Marton (Konkoly Observatory), on behalf of the Gaia Alerts teamGaiaAlertsGaiaAlerts06:16:39.250-21:29:59.282020-11-27 05:57:07.20018.14G-GaiaPSNGaia20flvGaiaAlertsconfirmed SN Ia-91T-like
905112020-11-23 09:35:03YSE_Bot1D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello, C. R. Angus, Z. Ansari, N. Arendse, C. Gall, C. Grillo, S. H. Bruun, C. Hede, J. Hjorth, L. Izzo, H. Korhonen, S. Raimundo, D. Kodi Ramanah, A. Sarangi, R. Wojtak, H. Pfister (DARK, U Copenhagen), K. Auchettl (DARK, UC Santa Cruz, U Melbourne), K. C. Chambers, M. E. Huber, E. A. Magnier, T. J. L. de Boer, J. R. Fairlamb, C. C. Lin, R. J. Wainscoat, T. Lowe, M. Willman, J. Bulger, A. S. B. Schultz (IfA, Hawaii), A. Engel, A. Gagliano, G. Narayan, M. Soraisam (Illinois), Q. Wang (JHU), A. Rest (JHU, STScI), S. J. Smartt, K. W. Smith (Queen's University Belfast), K. Alexander, A. Baldeschi, P. Blanchard, D. Coppejans, L. DeMarchi, A. Hajela, W. Jacobson-Galan, R. Margutti, D. Matthews, C. Stauffer, M. Stroh, G. Terreran (Northwestern), M. Drout (U Toronto), D. A. Coulter, G. Dimitriadis, R. J. Foley, T. Hung, C. D. Kilpatrick, C. Rojas-Bravo, M. R. Siebert (UC Santa Cruz), E. Ramirez-Ruiz (UC Santa Cruz, DARK)YSEPan-STARRS106:16:39.244-21:29:59.242020-11-19 12:24:28.80018.62i-SloanPSNPS20lrhPan-STARRS1
900622020-11-18 11:16:26ZTF_AMPEL_COMPLETEJ. Nordin, V. Brinnel, M. Giomi, J. van Santen (HU Berlin), A. Gal-Yam, O. Yaron, S. Schulze (Weizmann) on behalf of ZTFZTFZTF06:16:39.244-21:29:59.282020-11-16 11:06:18.14418.88g-ZTFPSNZTF20acqfssiZTFSee arXiv:1904.05922 for selection criteria.
896912020-11-17 06:18:10ZTF_Bot1C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaborationZTFZTF06:16:39.249-21:29:59.202020-11-12 10:33:36.00020.13g-ZTFPSNZTF20acqfssiZTF
895772020-11-16 21:11:43ATLAS_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 (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)ATLASATLAS06:16:39.256-21:29:59.372020-11-16 11:15:21.60018.977cyan-ATLASPSNATLAS20bfnaATLAS
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
80372020-11-20 00:08:13jburkeJamison Burke, Daichi Hiramatsu, D. Andrew Howell, Curtis McCully, Estefania Padilla Gonzalez, Craig PellegrinoGlobal SN ProjectSN Ia-91T-like0.059Global SN ProjectUsing Superfit (Howell et al. 2005, ApJ, 634, 1190) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find best fits to 91T-like SNe Ia a few days to a week before maximum light, including SN 1998es 2 days before peak. The supernova is closest to WISEA J061639.41-212948.9, and we infer a redshift of approximately 0.059 based on the SNID fits. Adopting this redshift we measure a Si II 6355 velocity of approximately 11,000 km/s. Adopting the distance modulus computed from this redshift (37.1), the g-band absolute magnitude of the object roughly coeval with the spectrum is -18.9 (apparent magnitude 18.5 and rising, from ZTF). The absolute magnitude and Si II velocity are consistent with a 91T-like SN Ia before maximum light.2020TNSCR3514....1B

Comments

Object coordinates updated according to AT-report 90974 of Group GaiaAlerts
Previous RA, DEC: 06:16:39.244, -21:29:59.24 (94.1635168356, -21.4997884092)
Updated RA, DEC: 06:16:39.250, -21:29:59.28 (94.163542, -21.4998)

Object coordinates updated according to AT-report 90511 of Group Pan-STARRS1
Previous RA, DEC: 06:16:39.244, -21:29:59.28 (94.1635156, -21.499799375)
Updated RA, DEC: 06:16:39.244, -21:29:59.24 (94.1635168356, -21.4997884092)

Object coordinates updated according to AT-report 90062 of Group ZTF
Previous RA, DEC: 06:16:39.249, -21:29:59.20 (94.1635387, -21.4997766)
Updated RA, DEC: 06:16:39.244, -21:29:59.28 (94.1635156, -21.499799375)

Object coordinates updated according to AT-report 89691 of Group ZTF
Previous RA, DEC: 06:16:39.256, -21:29:59.37 (94.163568, -21.499826)
Updated RA, DEC: 06:16:39.249, -21:29:59.20 (94.1635387, -21.4997766)