SN 2018ebx
RA/DEC (2000)
00:55:26.42 -74:18:42.19
13.86009 -74.31172
Type
SN Ia
Redshift
0.034
Source Group
ASAS-SN
Discovery Date
2018-07-22 23:45:36
TNS AT
Y
Public
Y
Host Name
2MASX J00552674-7418379
Discovery Mag
17.3
Filter
g-Sloan
Discoverer/s
K. Z. Stanek, for the ASAS-SN team
 2018-07-26 10:16:58 SOAR / Goodman
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
23492018-07-26 10:16:58SOAR / Goodman580R. CartierR. Cartier tns_2018ebx_2018-07-26_10-16-58_SOAR_Goodman.asci tns_2018ebx_2018-07-26_10-16-58_SOAR_Goodman.fitsObject
Light Curves
FilterTel / InstObs-date rangePhotometry
g-SloanASASSN-5_Payne-Gaposchkin2018-07-09 00:43:12 - 2018-07-22 23:45:362
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
323302018-07-22 23:45:3617.3ABMagg-SloanASASSN-5_Payne-Gaposchkin
323292018-07-09 00:43:1218.3ABMagg-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
207972018-07-23 01:12:52KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SN00:55:26.42-74:18:42.192018-07-22 23:45:3617.3g-SloanPSNASASSN-18pxASAS-SNIn several epochs, unknown redshift host, close to the SMC, so could also be a transient in that galaxy
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
23422018-07-28 22:41:08rcartierR. Cartier, J. Espinoza (CTIO), C. Contreras (STScI), A. Boltom (NOAO), C. Inserra (Southampton), E. Kankare (QUB), K. Maguire (SN Ia0.034From the host galaxy narrow emission lines we measured a redshift of 0.034, but the best fit templates are of SNe Ia at z~0.027 at one week past maximum. The SN seems to be peculiar, because ASAS-SN reported V = 16.50 mag on 2018-07-21 and g=17.3 mag on 2018-07-22, suggesting an intrinsic red colour or a fast decline in the SN brightness. The classification spectrum does not look peculiarly red, suggesting a fast photometric evolution rather than red colours. We encourage photometric follow-up.

Comments

We Observed PSN AT 2018ebx on 2018-07-25.032

C = 17.42 +/- 0.20

Cheers,
Malhar R. Kendurkar