SN 2016gkm
RA/DEC (2000)
08:42:53.060 +25:04:15.31
130.721083 +25.070919
Type
SN Ib/c
Redshift
0.017
Source Group
GaiaAlerts
Discovery Date
2016-09-21 07:33:36
TNS AT
Y
Public
Y
Discovery Mag
17.21
Filter
G-Gaia
Discoverer/s
A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts team

Spectra

 SN_2016gkm - 2017-01-07 00:00:00 Other / Other (None)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
34582017-01-07 00:00:00Other / Other10801MaNGA teamMaNGA teamNone tns_2016gkm_2017-01-07_Other_Other.dat tns_2016gkm_2017-01-07_Other_Other.fitsObjectSpectrum from the BOSS spectrograph at APO used in the SDSS-IV MaNGA survey.
Light Curves
FilterTel / InstObs-date rangePhotometry
R-PTFP48_CFH12k2009-01-01 00:00:00 - 2016-11-07 13:01:552
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
94112016-11-07 13:01:5518.627ABMagR-PTFP48_CFH12k60iPTF
94102009-01-01 00:00:0021.5ABMagR-PTFP48_CFH12k60iPTF[Last non detection]
w-PS1PS1_GPC12016-12-28 13:33:35 - 2016-12-28 13:33:351
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
257342016-12-28 13:33:3519.480.0622ABMagw-PS1PS1_GPC145Robot
G-GaiaGaia_Gaia-photometric2016-05-05 20:35:31 - 2016-09-21 07:33:362
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
74372016-09-21 07:33:3617.210.2ABMagG-GaiaGaia_Gaia-photometric60Robot
74362016-05-05 20:35:3121.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
170712018-02-27 18:41:05PS1_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), A. Rest (STScI), B. E. Tucker (Mt Stromlo Observatory, ANU), G. Narayan (STScI), P. M. Garnavich (Notre Dame), S. Margheim (Gemini Observatory), D. Kasen (UCB/LBL), R. Olling, E. Shaya (University of Maryland)Pan-STARRS108:42:53.067+25:04:15.422016-12-28 13:33:3519.48w-PS1PSNPS18jqPan-STARRS1
65602016-11-07 13:56:01iPTF_Bot1M. Kasliwal, Y. Cao (Caltech), on behalf of iPTFiPTF08:42:53.062+25:04:15.172016-11-07 13:01:5518.627R-PTFPSNiPTF16gkmiPTF2018-11-07
53872016-09-22 10:06:45Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlerts08:42:53.060+25:04:15.312016-09-21 07:33:3617.21G-GaiaPSNGaia16bjfGaiaAlertscandidate SN in galaxy UGC 4542
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
34512019-01-30 03:44:13lgalbanyLluís Galbany (Pitt), Carles Badenes (Pitt), David Law (STScI), Joseph D Gelfand (NYU)NoneSN Ib/c0.017We report the classification of AT2016gkm as a type Ib/c supernova. The spectrum was found serendipitously in an integral field spectroscopy observation of the galaxy within the SDSS-IV MaNGA survey. We extracted a 2-arcsec aperture spectrum at that location and used GELATO (Harutyunyan et al., 2008, A&A, 488, 383) to compare it to a set of spectra of several SN types. The best fit was to SN Ic 2004gk at +134 days past max, although fits of similar quality arre found to SN Ib 2009jf at +83 days past max. The main nebular lines of stripped envelope SNe are found in the spectrum: Mg I] λ4571, [O I] λλ6300,6364, [Ca II] λλ7291,7323, [O II] λλ7320,7330, and Ca II NIR. Considering that the object was discovered on Sep 21st 2016 and the last non-detection was four months before the discovery (May 5th 2016), the spectrum is from 108 days after discovery, which puts a lower limit for the actual epoch.