SN 2017gav
RA/DEC (2000)
17:03:21.130 +45:24:48.74
255.838042 +45.413539
Type
SN Ia
Redshift
0.033
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2017-08-12 07:53:45
TNS AT
Y
Public
Y
Host Name
SDSS J170321.30+452447.5
Discovery Mag
16.9
Filter
V-Johnson
Reporter/s
K. Z. Stanek, for the ASAS-SN team

Spectra

 SN_2017gav - 2017-08-16 06:00:00 Plaskett / Plaskett (DAO_OTS)z=
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   Binning factor: (rounded to nearest integer >1)
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Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
11122017-08-16 06:00:00Plaskett / Plaskett3600BalamBalam, HsiaoDAO_OTS tns_2017gav_2017-08-16.25_Plaskett_Telescope_Plaskett_DAO_OTS.dat tns_2017gav_2017-08-16.25_Plaskett_Telescope_Plaskett_DAO_OTS.fitsObjectDAO_OTS
Light Curves
FilterTel / InstObs-date rangePhotometry
V-JohnsonASASSN-1_Brutus2017-08-09 08:09:36 - 2017-08-12 07:53:452
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
194322017-08-12 07:53:4516.9VegaMagV-JohnsonASASSN-1_Brutus
194312017-08-09 08:09:3617.5STMagV-JohnsonASASSN-1_Brutus[Last non detection]
G-GaiaGaia_Gaia-photometric2017-08-07 15:11:31 - 2017-08-07 16:58:042
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
201222017-08-07 16:58:0417.470.2ABMagG-GaiaGaia_Gaia-photometric60Robot
201212017-08-07 15:11:3121.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
134912017-09-07 09:45:11Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlertsGaiaAlerts17:03:21.130+45:24:48.742017-08-07 16:58:0417.47G-GaiaPSNGaia17cfzGaiaAlertsConfirmed SN Ia near galaxy SDSS J170321.30+452447.5, aka ASASSN-17kt, SN2017gav. Declining.
130572017-08-13 17:28:20KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SNASAS-SN17:03:21.091+45:24:48.642017-08-12 07:53:4516.9V-JohnsonPSNASASSN-17ktASAS-SNFaint SDSS galaxy present at the SN candidate position
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
11082017-08-17 00:47:27DAO_OTSDave BalamDAO_OTSSN Ia0.033DAO_OTSD. D. Balam, Dominion Astrophysical Observatory, National Research Council of Canada, K. Thanjavur (University of Victoria) and E. Hsiao, Florida State University report that a spectrogram (range 390-710 nm, resolution 0.3 nm) of SN 2017gav obtained on Aug. 16.25 UT with the 1.82-m Plaskett Telescope of the National Research Council of Canada, shows it to be a normal type Ia supernova near maximum light. Cross- correlation with a library of supernova spectra using the "Supernova Identification" code (Blondin and Tonry 2007, Ap.J. 666,1024) suggests that SN 2017gav is most similar to the normal type-Ia supernova at maximum light. Our solution yields a red shift of 0.033.

Comments

Object coordinates updated according to AT-report 13491 of Group GaiaAlerts
Previous RA, DEC: 17:03:21.091, +45:24:48.64 (255.83788, +45.41351)
Updated RA, DEC: 17:03:21.130, +45:24:48.74 (255.838042, 45.413539)