Very bright supernova

Hi, :slightly_smiling_face:

I while ago I discovered a very bright, unreported supernova. Not in NED, Simbad Search, the TNS or the RBS pages. Visible in DECaLS DR9 and DES DR1. Not visible in the other layers. This galaxy is outside the SDSSS and PanSTARRS footprint. No asteroid.
First appearance in DR9 on 2013-12-22 06:47:02.736369 in z-band. Visible in three ‘single image exposures’ with two different dates. Have to find out if there is an earlier date of appearance in DES DR1 but it is difficult to retrieve data from DES DR1. It has a given, apparent magnitude of 15.89 in z-band. But I think I am going to calculate one.

Ine :stars::dizzy:

DR9
Screenshot_20230324-083407_Chrome

DR10
Screenshot_20230324-083445_Chrome

https://www.legacysurvey.org/viewer?ra=99.3711&dec=-59.6535&layer=ls-dr9&zoom=15

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Nice spot! Doesn’t seem to be known anywhere, nothing unusual in exposures or data quality that would suggest artefact and only visible for a (relatively) short period of time. Can’t see why it wouldn’t be one!

Hi Ine,

The LS-DR9 should include all the exposures that are in DES DR1. (The DES-DR1 data were public when we ran DR9.)

cheers,
dustin

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Reported as: AT2013lq

Ine :stars::dizzy:

https://www.wis-tns.org/object/2013lq

https://www.wis-tns.org/object/2013lq/discovery-cert

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