SN 2016bas
RA/DEC (2000)
07:38:05.53 -55:11:47.00
114.523042 -55.196389
Type
SN IIb
Redshift
0.009
Source Group
BOSS
Discovery Date
2016-03-12 12:16:29
TNS AT
Y
Public
Y
Host Name
ESO-163-G011
Discovery Mag
16.8
Filter
Clear-
Discoverer/s
Stuart Parker
 2016-03-14 14:25:59 FTS / FLOYDS-S (LCOGT SN-KP)
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
1632016-03-14 14:25:59FTS / FLOYDS-S2700LCOGTGriffin HosseinzadehLCOGT SN-KP tns_2016bas_2016-03-14_14-25-59_FTS_FLOYDS-S_LCOGT_SN-KP.ascii tns_2016bas_2016-03-14_14-25-59_FTS_FLOYDS-S_LCOGT_SN-KP.fitsObjectLCOGT SN-KP
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2016-02-02 15:29:00 - 2016-03-12 12:16:292
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
16692016-03-12 12:16:2916.819OtherClear-Other_Other30Parker
16682016-02-02 15:29:0018OtherClear-Other_Other30Parker[Last non detection] Nothing visible at this date
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
14852016-03-13 10:59:49Stuart ParkerStuart ParkerBOSS07:38:05.53-55:11:47.002016-03-12 12:16:2916.8Clear-PSNBOSSDiscovery image taken with a 30-cm Astro-Tech AT12RC Ritchey-Chretien astrograph (+ ST10 camera) at Parkdale Observatory New Zealand in the course of the Backyard Observatory Supernova Search. The new object is measured from reference stars from USNO-B and UCAC4 catalogues), which is 1E"and 20S" from the nucleus of the galaxy.
Related files
FileFile TypeCommentsLast Modified (UT)Modified By
tns_2016bas_atrep_1485_BOSS.jpgGraphics2016-03-13 10:59:49Stuart Parker
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
1572016-03-14 19:24:29griffinGriffin Hosseinzadeh, Iair Arcavi, D. Andrew Howell, Curtis McCully, Stefano ValentiLCOGT SN-KPSN IIb0.009LCOGT SN-KPUsing Superfit (Howell et al. 2005, ApJ, 634, 119) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find a good fit to the Type IIb SN 1997dd at maximum light at the redshift of the proposed host galaxy (z=0.009; Mathewson, Ford, & Buchhorn 1992, ApJS, 81, 413, via NED). The helium lines at 588 and 707 nm are clearly observed, with P Cygni minima corresponding to a velocity of ~7000 km/s. The helium line at 668 nm may also be present at the same velocity but blended with narrow H-alpha emission from the host.

Comments

From ATel #8836:

The nearby Type IIb supernova SN 2016bas (ATel #8814) in ESO 163-G011 has been observed with the Australia Telescope Compact Array (ATCA) on 2016 March 17.4 UT. We detected a radio source at a position consistent with that measured optically, and fluxes of 0.56+/-0.03 mJy and 0.21+/-0.02 mJy at 9.0 and 5.5 GHz, respectively. Although the date of explosion of SN 2016bas is not well-constrained, comparison with other Type IIb events such as SN 2001ig (Ryder et al. 2004, MNRAS, 349, 1093) suggests the source has yet to peak at these frequencies. Monitoring at these and other frequencies is continuing, and further multi-wavelength follow-up is encouraged.