ATLAS discoveries of optical transients
ATel #9493; J. Tonry, L. Denneau, B. Stalder, A. Heinze, A. Sherstyuk (IfA, University of Hawaii), A. Rest (STScI), K. W. Smith, S. J. Smartt (Queen's University Belfast)
on 13 Sep 2016; 11:51 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ken Smith (k.w.smith@qub.ac.uk)
Subjects: Optical, Supernovae, Transient
We report the following transients found by the ATLAS survey (see Tonry et al. ATel #8680). ATLAS is a twin 0.5m telescope system on Haleakala and Mauna Loa. The first unit is operational on Haleakala is robotically surveying the sky. Two filters are used, cyan and orange (denoted c and o, all mags in AB system), more information is on http://www.fallingstar.com. All transients have been registered with the IAU.
Host galaxy identifications and redshifts are from NED or the Pan-STARRS1 3Pi image stack, and absolute magnitude calculations include an estimate of Milky Way foreground extinction at the filter wavelength.
Name | ATLAS Name | RA (J2000) | Dec (J2000) | Disc. MJD | Disc. Date | Disc Mag | z | Notes
AT2016gfu | ATLAS16crz | 00:10:36.44 | -06:38:08.9 | 57639.48 | 20160908.48 | 18.24 c | 0.027239 | 1.
AT2016gft | ATLAS16csb | 01:21:44.06 | -11:46:10.2 | 57639.52 | 20160908.52 | 17.90 c | 0.018406 | 2.
AT2016gfw | ATLAS16cru | 03:13:50.81 | -18:31:01.8 | 57639.61 | 20160908.61 | 17.96 c | 0.052300 | 3.
AT2016gfv | ATLAS16csa | 03:28:44.91 | -13:52:08.0 | 57639.62 | 20160908.62 | 17.65 c | | 4.
1. NED reports that the likely host (14.94 arcsec away) is MCG -01-01-045, with spectroscopic redshift z=0.027239, hence mu=35.19, A_c=0.085, M_c=-17.13 (forced, using 1st 5sigma detection)
2. NED reports that the likely host (14.58 arcsec away) is MCG -02-04-032, with spectroscopic redshift z=0.018406, hence mu=34.30, A_c=0.08, M_c=-16.58 (forced, using 1st 5sigma detection)
3. NED reports that the likely host (2.34 arcsec away) is 6dF J0313507-183102, with spectroscopic redshift z=0.052300, hence mu=36.72, A_c=0.087, M_c=-18.94 (forced, using 1st 5sigma detection)
4. SDSS DR12 reports that the likely host (4.94 arcsec away) is SDSS J032844.60-135209.9, with photometric redshift z=0.081.
