[ Previous | Next | ADS ]

ASAS-SN Discovery of A Probable Supernova in GALEXASC J184443.33-524819.2

ATel #6683; S. Kiyota (Variable Star Observers League in Japan), J. Brimacombe (Coral Towers Observatory), T. W.-S. Holoien, K. Z. Stanek, C. S. Kochanek, A. B. Davis, G. Simonian, U. Basu, J. F. Beacom (Ohio State), B. J. Shappee (Hubble Fellow, Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), D. Bersier (LJMU), D. Szczygiel, G. Pojmanski (Warsaw University Observatory), E. Conseil (Association Francaise des Observateurs d'Etoiles Variables), L. A.G. Monard (Klein Karoo Observatory)
on 10 Nov 2014; 16:58 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Thomas Holoien (tholoien@astronomy.ohio-state.edu)

Subjects: Optical, Supernovae, Transient

During the ongoing All Sky Automated Survey for SuperNovae (ASAS-SN or "Assassin"), using data from the double 14-cm "Cassius" telescope in Cerro Tololo, Chile, we discovered a new transient source, most likely a supernova, in the galaxy GALEXASC J184443.33-524819.2:

 
Object       RA (J2000)     DEC (J2000)      Disc. UT Date   Disc. V mag 
ASASSN-14jz  18:44:44.34   -52:48:05.48      2014-11-10.03    15.8 

ASASSN-14jz was discovered in images obtained on UT 2014-11-10.03 at V~15.8 mag. We do not detect (V>16.1) the object in images taken on UT 2014-11-05.04 and before. Images obtained by S. Kiyota on UT 2014-11-10.40 using a 0.5m CDK + FLI PL-9000 at the ITelescope.NET site at Siding Springs Observatory and by J. Brimacombe on UT 2014-11-10.42 with the CDK 43-cm telescope at Savannah Skies Observatory confirm the discovery of the transient. This figure shows the archival DSS image of the host (left) and the S. Kiyota confirmation image (right). The red circle has a radius of 5" and is centered on the position of the transient in the S. Kiyota image.

The position of ASASSN-14jz is approximately 13.8" North and 9.0" East from the center of the galaxy GALEXASC J184443.33-524819.2 which, while clearly a galaxy, has no redshift available in NED. Follow-up observations, especially spectroscopy, are encouraged.

We thank LCOGT and its staff for their continued support of ASAS-SN. For more information about the ASAS-SN project, see the ASAS-SN Homepage and the list of all ASAS-SN transients.