SN 2018dfh
RA/DEC (2000)
05:11:33.44 -21:16:09.66
77.88935 -21.26935
Type
SN II
Redshift
0.013836
Source Group
ASAS-SN
Discovery Date
2018-07-10 10:19:12
TNS AT
Y
Public
Y
Host Name
ESO 553- G 019
Host Redshift
0.013836
Discovery Mag
16.3
Filter
V-Johnson
Discoverer/s
Subo Dong, K. Z. Stanek, for the ASAS-SN team
 2018-07-15 10:14:26 LCO-duPont / WFCCD (ASAS-SN)
Show H at z=vexp= km/s
Show He at z=vexp= km/s
Show He ii at z=vexp= km/s
Show O at z=vexp= km/s
Show O ii at z=vexp= km/s
Show O iii at z=vexp= km/s
Show Na at z=vexp= km/s
Show Mg at z=vexp= km/s
Show Mg ii at z=vexp= km/s
Show Si ii at z=vexp= km/s
Show S ii at z=vexp= km/s
Show Ca ii at z=vexp= km/s
Show Fe ii at z=vexp= km/s
Show Fe iii at z=vexp= km/s
Show Å at z=vexp= km/s
Show Å at z=vexp= km/s
Show Tellurics 
Show Galaxy lines at z=
Show WR-WN at z=vexp= km/s
Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (observed),0 (rest)
See separate spectra
Spectra
IDObs-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
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 Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
200632018-07-10 13:23:25KZStanekSubo Dong, K. Z. Stanek, for the ASAS-SN teamASAS-SN05:11:33.44-21:16:09.662018-07-10 10:19:1216.3V-JohnsonPSNASASSN-18ouASAS-SNIn several epochs, field has emerged from the seasonal break
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
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).

Comments