SN 2017daf
RA/DEC (2000)
14:34:52.70 +40:44:52.87
218.71959 40.74802
Type
SN Ia
Redshift
---
Source Group
ASAS-SN
Discoverer
K. Z. Stanek, for the ASAS-SN team
Discovery Date
2017-04-15 12:28:48
TNS AT
Y
Public
Y
Host Name
UGC 09386
Host Redshift
0.019001
Discovery Mag
16
Discovery Mag Filter
B-Johnson
 2017-04-16 05:30:36 MDM-2.4 / OSMOS (ASAS-SN)
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
9102017-04-16 05:30:36MDM-2.4 / OSMOSJ. KlusmeyerASAS-SN tns_2017daf_2457859.72959061_MDM-2.4_OSMOS_ASAS-SN.txtObjectASAS-SN
Light Curves
FilterTel / InstObs-date rangePhotometry
B-JohnsonASASSN-1_Brutus2017-04-15 12:28:48 - 2017-04-15 12:28:481
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
159602017-04-15 12:28:4816VegaMagB-JohnsonASASSN-1_Brutus
V-JohnsonASASSN-1_Brutus2017-03-31 11:31:12 - 2017-04-04 08:09:362
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
159612017-04-04 08:09:3617.5VegaMagV-JohnsonASASSN-1_Brutus
159592017-03-31 11:31:1217.6VegaMagV-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
107242017-04-15 16:25:45KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SN14:34:52.70+40:44:52.872017-04-15 12:28:4816B-JohnsonPSNASASSN-17ezASAS-SNIn several epochs, on the rise, nuclear source, so might also be a TDE
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
9002017-04-16 16:51:26jlprietoJ. L. Prieto, J. Klusmeyer, S. DongASAS-SNSN IaASAS-SNWe obtained a spectrum of ASASSN-17ez on UT 2017 Apr. 16.2 with OSMOS mounted on the MDM 2.4m telescope at KPNO. The spectrum is characteristic of a normal SN Ia around peak. Using SNID to fit the spectrum, the best fitting template is the normal SN Ia 2006cf at +2 days. After correcting the spectrum for the redshift of the host, we measure a Si II 6355 Angs. velocity of 11600 km/s.

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