SN 2017isj
RA/DEC (2000)
11:10:44.56 +04:50:51.11
167.685667 +4.847531
Type
SN Ia
Redshift
0.019
Source Group
ASAS-SN
Discovery Date
2017-12-02 08:17:47
TNS AT
Y
Public
Y
Host Name
UGC 06216
Host Redshift
0.01933
Discovery Mag
15.43
Filter
g-Sloan
Discoverer/s
Ping Chen
 2017-12-04 12:50:31 FTN / FLOYDS-N (Global SN Project)
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
15042017-12-04 12:50:31FTN / FLOYDS-N1800Las Cumbres ObservatoryGriffin HosseinzadehGlobal SN Project tns_2017isj_2017-12-04_12-50-31_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2017isj_2017-12-04_12-50-31_FTN_FLOYDS-N_Global_SN_Project.fitsObjectGlobal SN Project
Light Curves
FilterTel / InstObs-date rangePhotometry
w-PS1PS1_GPC12018-01-11 15:00:00 - 2018-01-11 15:00:001
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
315862018-01-11 15:00:0017.250.0122ABMagw-PS1PS1_GPC145Robot
g-SloanASASSN-4_Leavitt2017-11-29 10:54:53 - 2017-12-02 08:17:472
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
229052017-12-02 08:17:4715.430.0916.46ABMagg-SloanASASSN-4_Leavitt
229042017-11-29 10:54:5318.7ABMagg-SloanASASSN-4_Leavitt[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
202732018-07-13 18:25:38PS1_Bot1K. C. Chambers, M. E. Huber, H. Flewelling, E. A. Magnier, A. Schultz, T. Lowe, J. Bulger (IfA, University of Hawaii), S. J. Smartt, K. W. Smith (Queen's University Belfast), J. Tonry, C. Waters, (IfA, University of Hawaii) D. E. Wright (University of Minnesota), D. R. Young (Queen's University Belfast)Pan-STARRS111:10:44.52+04:50:50.802018-01-11 15:00:0017.25w-PS1PSNPS18ajtPan-STARRS1
151792017-12-03 03:38:21ChenPingPing ChenASAS-SN11:10:44.56+04:50:51.112017-12-02 08:17:4715.43g-SloanPSNASASSN-17qgASAS-SNconfirmed in LCOGT-1m follow-up image
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
15002017-12-04 19:36:57griffinGriffin Hosseinzadeh, Iair Arcavi, D. Andrew Howell, Curtis McCully, Stefano ValentiGlobal SN ProjectSN Ia0.019Global SN ProjectUsing Superfit (Howell et al. 2005, ApJ, 634, 1190), we find good fits to several Type Ia supernovae 0-2 weeks before maximum light at a redshift of the proposed host galaxy (z=0.019; Falco et al. 1999, PASP, 111, 438 via NED). We measure a Si II velocity of about 16,000 km/s, implying the supernova was discovered soon after explosion, but the absolute magnitude at discovery was about -19, implying it was discovered near maximum light. Together, these could either indicate a young overluminous supernova or a high-velocity supernova at peak.

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