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Possible supernova in ESO 154-G010 discovered by PESSTO

ATel #6711; T. Kangas, S. Mattila (Univ. of Turku), E. Kankare (QUB), G. Dimitriadis, M. Smith, R. Firth (Southampton), L. Galbany (DAS, MAS), C. Inserra (QUB), K. Maguire (ESO), S. J. Smartt (QUB), K. W. Smith (QUB), M. Sullivan (Southampton), S. Valenti (LCOGT), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann)
on 17 Nov 2014; 16:30 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Seppo Mattila (seppo.mattila@utu.fi)

Subjects: Optical, Supernovae, Transient

PESSTO, the Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al., arXiv:1411.0299 http://www.pessto.org ) reports the discovery of a possible supernova (mag U = 18.4 +- 0.1; B = 17.9 +- 0.1; V = 17.5 +- 0.1; R = 17.3 +- 0.1; i = 17.2 +- 0.1) in the galaxy ESO 154-G010. All observations were performed on the ESO New Technology Telescope at La Silla on 2014-11-16.3, using EFOSC2 UBVRi band filters. The position of the transient is 02:45:09.27 -55:44:16.9, which is 5.0" east and 9.0" north of the R band nucleus of the galaxy. This probable new supernova was discovered in the course of observing SN 2013fc (Pignata et al., CBET 3644, Kankare et al. ATel #5538) in ESO 154-G010. This host is a (borderline) luminous infra-red galaxy, with a high star formation rate and an implied supernova rate of order 0.3 SN/yr. Our last non-detection is from a NTT/SOFI Ks-band image taken on 2014-10-14.3. We used the Minor Planet Checker to confirm the absence of known minor planets, and the object is stationary between all images. A finding chart can be found at http://www.pessto.org/assets/images/ESO-154-G010-SN.pdf