[vsnet-alert 23288] ASASSN-19oa: new transient (15.6 mag) in Crux - dwarf nova or nova?

Tue Jun 4 18:13:53 JST 2019

ASASSN-19oa  (UG/N)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=689840

"Possible Galactic Nova, on the rise, could also be a CV,
very close to the Galactic plane l/b=301.384/-0.076"
https://wis-tns.weizmann.ac.il/object/2019gvk

ASASSN-19oa 20190601.165 <184g ASN
ASASSN-19oa 20190603.177  156g ASN

Complete ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) data and light curve:
https://asas-sn.osu.edu/light_curves/120009f5-4d67-425b-b606-77255177367d

Spectroscopy, precise astrometry (or at least a snapshot),
and multiband (and possibly time-resolved) photometry are
urgently required.

Clear skies,
Patrick