SN 2018gl
RA/DEC (2000)
09:58:06.25 +10:21:33.84
149.52603 +10.3594
Type
SN Ia
Redshift
0.018
Source Group
ASAS-SN
Discovery Date
2018-01-13 13:40:47
TNS AT
Y
Public
Y
Host Name
NGC 3070
Host Redshift
0.017906
Discovery Mag
16.9
Filter
V-Johnson
Discoverer/s
J. Brimacombe, G. Stone, K. Z. Stanek, for the ASAS-SN team
 2018-01-15 09:46:04 Keck1 / LRIS
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
16462018-01-15 09:46:04Keck1 / LRIS300G. Dimitriadis, M. R. Siebert, R. J. Foley (UCSC)G. Dimitriadis tns_2018gl_2018-01-15_09-46-04_Keck1_LRIS.datObject
Light Curves
FilterTel / InstObs-date rangePhotometry
V-JohnsonASASSN-1_Brutus2018-01-09 14:09:36 - 2018-01-13 13:40:472
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
247252018-01-13 13:40:4716.9VegaMagV-JohnsonASASSN-1_Brutus
247242018-01-09 14:09:3618VegaMagV-JohnsonASASSN-1_Brutus[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
164862018-01-14 14:16:03KZStanekJ. Brimacombe, G. Stone, K. Z. Stanek, for the ASAS-SN teamASAS-SN09:58:06.25+10:21:33.842018-01-13 13:40:4716.9V-JohnsonPSNASASSN-18anASAS-SNIn several epochs, confirmed by J. Brimacombe and G. Stone
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
16412018-01-16 02:08:56msiebertG. Dimitriadis, M. R. Siebert, R. J. Foley (UCSC)SN Ia0.018Similar to SN 1986G and other "transitional" SNe Ia. We measure an Si II 6355 velocity of -11,500 km/s. We detect a subtle absorption feature at ~6350 A, which may be caused by C II 6580 at -10,600 km/s. The cool photosphere and possible carbon detection are both notable features of the peculiar SN 2006bt (Foley et al., 2010, ApJ, 708, 1748).

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