SN 2018dfh
RA/DEC (2000)
05:11:33.459 -21:16:10.27
77.8894118182 -21.2695190909
Type
SN II
Redshift
0.013836
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-07-10 10:19:12.000
TNS AT
Y
Public
Y
Host Name
ESO 553- G 019
Host Redshift
0.013836
Discovery Mag
16.3
Filter
V-Johnson
Reporter/s
Subo Dong, K. Z. Stanek, for the ASAS-SN team

Spectra

 SN_2018dfh - 2018-07-15 10:14:26 LCO-duPont / WFCCD (ASAS-SN)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
22842018-07-15 10:14:26LCO-duPont / WFCCDL. Khlat (ENS-Lyon), J. L. Prieto (UDP)ASAS-SN tns_2018dfh_2458314.92669_LCO-duPont_WFCCD_ASAS-SN.txt tns_2018dfh_2458314.92669_LCO-duPont_WFCCD_ASAS-SN.fitsObjectASAS-SN
Light Curves
FilterTel / InstObs-date rangePhotometry
V-JohnsonASASSN-2_Cassius2018-07-10 10:19:12 - 2018-07-10 10:19:121
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
313172018-07-10 10:19:1216.3VegaMagV-JohnsonASASSN-2_Cassius
cyan-ATLASATLAS-HKO_ATLAS-022018-08-15 15:15:50 - 2018-08-15 15:15:501
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
340272018-08-15 15:15:5017.19ABMagcyan-ATLASATLAS-HKO_ATLAS-0230Robot[Last non detection]
orange-ATLASATLAS-MLO_ATLAS-012018-08-17 14:42:43 - 2018-08-17 14:42:431
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
340282018-08-17 14:42:4317.4940.03619.3ABMagorange-ATLASATLAS-MLO_ATLAS-0130Robot
g-SloanASASSN-5_Payne-Gaposchkin2018-04-20 16:47:59 - 2018-04-20 16:47:591
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
313162018-04-20 16:47:5917ABMagg-SloanASASSN-5_Payne-Gaposchkin[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
217232018-08-18 11:58:15ATLAS_Bot1J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), A. Rest (STScI), K. W. Smith, S. J. Smartt, D. R. Young, M. Fulton, O. McBrien, D. O'Neill, P. Clark (Queen's University Belfast)ATLASATLAS05:11:33.459-21:16:10.272018-08-17 14:42:43.00017.494orange-ATLASPSNATLAS18twlATLAS
200632018-07-10 13:23:25KZStanekSubo Dong, K. Z. Stanek, for the ASAS-SN teamASAS-SNASAS-SN05:11:33.444-21:16:09.662018-07-10 10:19:12.00016.3V-JohnsonPSNASASSN-18ouASAS-SNIn several epochs, field has emerged from the seasonal break
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
22772018-07-15 19:27:52jlprietoL. Khlat (ENS-Lyon), J. L. Prieto (UDP), S. Dong (KIAA-PKU)ASAS-SNSN II0.013836ASAS-SNWe obtained an optical low-resolution spectrum of supernovae candidates on UT 2018 July 15 with WFCCD mounted on the du Pont 2.5m telescope at Las Campanas Observatory. The spectrum of ASASSN-18ou/AT2018dfh is that of a Type II after maximum light. SNID (Blondin & Tonry 2007) gives a best fit age of +8 days after maximum light. The spectrum shows characteristics of normal Type IIP in the plateau phase and Type IIn supernovae (including a narrow P-Cygni profile with v ~ -500 km/s on top of broad FWHM ~ 8000 km/s H-alpha line), with similarities to SN1996L (Benetti et al. 1999, MNRAS, 305, 811). 2018TNSCR.988....1K

Comments

Object coordinates updated according to AT-report 21723 of Group ATLAS
Previous RA, DEC: 05:11:33.444, -21:16:09.66 (77.88935, -21.26935)
Updated RA, DEC: 05:11:33.459, -21:16:10.27 (77.8894118182, -21.2695190909)