We are carrying out the "Pan-STARRS Search for Kilonovae" which is a focused search for intrinsically faint transients, or rapidly evolving transients in galaxies which are closer than 200 Mpc in the ongoing Pan-STARRS Near Earth Object surveys (see Smartt et al. AstroNote 2019-48 for details).
In normal survey mode, Pan-STARRS takes 4 x 45s exposures in w, i or z each night reaching 5 sigma magnitudes of w<22, i<21 and z<20.5 in each frame (see Chambers et al. 2016, 1612.05560).
We report the discovery of an intrinsically faint transient PS19gjm (AT2019uez) in the host galaxy CGCG 390-084, at a redshift of z = 0.039, or d = 163 Mpc (from NED). The transient was discovered at MJD 58790.45 (2019-11-03.45) at mag w = 20.44 +/- 0.05. It is offset from the host by 0.4" N, 9.4" E ( a projected 7.3 kpc radius from the galaxy centre). At this distance the absolute magnitude is M_w = -15.9 (assuming m-M = 36.06 and foreground exinction of A_w = 0.25). Spectroscopic classification is encouraged.
Information on all objects discovered by the "Pan-STARRS search for kilonovae" will be made available at http://star.pst.qub.ac.uk/ps1threepi/. We will release AstroNotes for all these candidates and encourage spectroscopic classification or photometric follow-up. A finder is attached.
These discoveries are a byproduct of the Pan-STARRS NEO survey observations supported by the NASA Grants, including No. NNX14AM74G issued through the SSO Near Earth Object Observations Program.
Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
---|---|---|---|---|---|---|---|---|---|---|---|---|
TNS | 2019uez [PS19gjm] | 03:24:41.407 | -00:40:53.04 | 03:24:41.409 | -00:40:53.06 | SN II | 0.039 |
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