AstroNote 2020-200

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DRAFT
2020-10-21 23:12:12
Type: Object/s-Discovery/Classification
ZTF + ATLAS discovery of young transient ZTF20aclwclm / AT 2020xtz
Authors: A. Munoz-Arancibia (MAS), L. Hernandez-Garcia (MAS), F. Forster (CMM/MAS), F.E. Bauer (UC/MAS), G. Pignata (UNAB/MAS), A. Mourao (CENTRA, U.Lisboa), A. Clocchiatti (UC/MAS), E. Camacho (UC/MAS), J. Silva (UCH), A. Reguitti (UNAB), on behalf of the ALeRCE broker; L. Denneau, A. Heinze, J. Tonry (IfA, University of Hawaii), K. W. Smith, S. J. Smartt (Queen's University Belfast), J. Anderson (ESO), A. Rest (STScI), on behalf of the ATLAS collaboration.
Source Group: ZTF
Keywords: Transient
Abstract:
We report the discovery of ZTF20aclwclm / AT 2020xtz, a young transient in galaxy NGC 6574 reported by the ALeRCE broker (TNS #86978) using the ZTF public alert stream. The object was detected at 18.28 mag on a ZTF g-band image obtained on October 21, 2020 at 3:57 UT, ~1:22 hours after a reported non-detection, and it was confirmed by ATLAS 1:11 hours later at 17.39 mag o-band. We encourage additional follow-up observations of this transient.

We report the discovery of ZTF20aclwclm / AT 2020xtz, a young transient reported by the ALeRCE broker (TNS #86978) using the ZTF public alert stream. The object was detected on a ZTF g-band image obtained on October 21, 2020 at 3:57 UT with 18.28+-0.09 mag, ~1:22 hours after a reported non-detection in ZTF r-band (21.17 mag). Its ZTF light curve can be explored in https://alerce.online/object/ZTF20aclwclm. The sigma-clipped average magnitude for ATLAS o-band detections in the same night is 17.39+-0.06 mag at 5:08 UT. ZTF20aclwclm is located in the galaxy NGC 6574, which has a redshift of 0.0076. We encourage additional follow-up observations of this transient.

 

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020xtz [ZTF20aclwclm]18:11:51.096+14:58:56.890.0076NGC 65740.00761218:11:51.098+14:58:56.80SN Ia0.007612