PSST discovery of a faint transient in NGC4442 in the Virgo cluster
ATel #8958; K. W. Smith, D. Wright, S. J. Smartt (Queen's University Belfast), M. Huber, K. C. Chambers, H. Flewelling, M. Willman, N. Primak, A. Schultz, B. Gibson, E. Magnier, C. Waters, J. Tonry, R. J. Wainscoat (IfA, Hawaii), R. J. Foley (Illinois), S. W. Jha (Rutgers), A. Rest (STScI), D. Scolnic (Chicago/KICP)
on 15 Apr 2016; 21:21 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ken Smith (k.w.smith@qub.ac.uk)
Subjects: Supernovae, Transient
A transient object has been discovered near NGC4442 as part of the Pan-STARRS Survey for Transients (PSST). Information on all objects discovered by the Pan-STARRS Survey for Transients is available at http://star.pst.qub.ac.uk/ps1threepi/ (see Huber et al. ATel #7153).
Name | PS Name | RA (J2000) | Dec (J2000) | Disc. Date | Disc Mag | Notes
AT2016bqr | PS16bqu | 12 28 00.06 | +09 48 03.6 | 20160409 | 21.42 w | (1)
(1) The object is 57.1" from the core of NGC4442 (z=0.001825), an early type SB0 galaxy in the Virgo cluster. At an assumed distance of 17Mpc, this means an absolute magnitude of M_r = -9.8 (with MW foreground extinction of A_r = 0.05). This is either a very young supernova, a nova in NGC4442, or a chance coincidence (foreground/background transient).
The object is not present in w-band PS1 exposures 40 days before the reported discovery date. Spectroscopic classification is encouraged.