Discovery of young rising transient ZTF20abpgnos / AT2020qna
Abstract
We report the discovery ZTF20abpgnos / AT2020qna, a young rising transient reported by the ALeRCE broker (TNS #78910) using the ZTF public alert stream. The object was detected on ZTF r-band images obtained on July 29, 2020 at 07:47 UT, ~2 days after its last non-detection. It was also detected on ZTF g-band images obtained on July 29, 2020 at 09:29 UT, ~3 days after its last non-detection. Since then, the object has been rising at 2.1 mag/day in r-band and 1.6 mag/day in g-band, reaching 17.3 mag in r-band on July, 30 2020 at 06:30 UT and 17.2 mag in g-band on July, 30 2020 at 08:36 UT. The Galactic extinction for this source is 0.925 mag in the r-band and 1.276 mag in the g-band. We found no reliable counterparts in public multi-wavelength catalogs closer than 10 arcseconds. The light curve can be explored in https://alerce.online/object/ZTF20abpgnos. Swift observations have been requested, and we encourage additional follow-up observations of this transient.
- Publication:
-
Transient Name Server AstroNote
- Pub Date:
- July 2020
- Bibcode:
- 2020TNSAN.148....1M
- Keywords:
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- Transient;
- ZTF20abpgnos;
- 2020qna;
- AT2020qna;
- AT 2020qna