SN 2017dzs
RA/DEC ()
23:32:28.880 +23:56:10.93
353.120333 +23.936369
Type
SN Ia-91bg-like
Redshift
0.0173
Source Group
None
Discovery Date
2017-05-11 18:51:35
TNS AT
Y
Public
Y
Host Name
UGC 12655
Discovery Mag
16.4
Filter
Clear-
Discoverer/s
Koichi Itagaki

Spectra

 SN_2017dzs - 2017-05-13 19:12:00 Kanata / HOWPol (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
10162017-05-13 19:12:00Kanata / HOWPolT. Nakaoka, M. KawabataT. NakaokaNone tns_2017dzs_2017-05-13.8_Kanata_HOWPol.asciiObjectThe spectrum was consistent with a subluminous Type Ia supernova at a few weeks after the maximum date, showing remarkable absorption lines of SiII 5972 and 6355, whose line velocities reached about 9,500 km/s. The ratio of the absorption depths of SiII 5972 to SiII 6355 was roughly 0.5, indicating that this SN could be a SN 1991bg-like SN. The CaII IR triplet was also seen.
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2017-05-11 18:51:35 - 2017-05-11 18:51:351
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
169102017-05-11 18:51:3516.4VegaMagClear-Other_OtherK.Itagaki0.5-m/f6.8
G-GaiaGaia_Gaia-photometric2017-01-15 15:54:43 - 2017-05-20 23:22:332
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
172172017-05-20 23:22:3316.990.2ABMagG-GaiaGaia_Gaia-photometric60Robot
172162017-01-15 15:54:4321.5ABMagG-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
116342017-05-22 10:47:07Gaia_Bot1A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts teamGaiaAlerts23:32:28.880+23:56:10.932017-05-20 23:22:3316.99G-GaiaPSNGaia17bieGaiaAlertscandidate SN in outskirts of galaxy UGC 12655, GS-TEC predicts SN Ia at t=32
114762017-05-11 21:36:06K.ItagakiKoichi ItagakiNone23:32:28.900+23:56:11.202017-05-11 18:51:3516.4Clear-PSN
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
10072017-05-25 10:33:43kabatamihoMiho KawabataNoneSN Ia-91bg-like0.0173

Comments

Object coordinates updated according to AT-report 11634 of Group GaiaAlerts
Previous RA, DEC: 23:32:28.900, +23:56:11.20 (353.120417, +23.936444)
Updated RA, DEC: 23:32:28.880, +23:56:10.93 (353.120333, 23.936369)