Gaia21cpb: new transient (reddened nova?) in Aquila

Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
Mon, 05/31/2021 - 15:34

Gaia21cpb = AT 2021nwn  (N:)

Gaia Photometric Science Alerts ("bright red transient near Galactic plane"):
Gaia21cpb 20210512.4040 15.69G Gaia
Gaia21cpb 20210528.4086 15.74G Gaia
Gaia21cpb 20210528.5848 15.81G Gaia

Transient Name Server:

First detected by ATLAS on 2021 May 9.5298 UT (cyan magnitude 18.1) and May 11.5562 UT (orange magnitude 15.6).
At mag. 16.28 (orange) on May 29.6138 UT.

Complete ASAS-SN Sky Patrol light curve and data:

Spectroscopy and multiband photometry are urgently required.

Clear skies,
All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
- Shappee et al., 2014ApJ...788...48S
- Kochanek et al., 2017PASP..129j4502K
Asteroid Terrestrial-impact Last Alert System (ATLAS):
- Tonry et al., 2018PASP..130f4505T