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 PS19fco (AT2019qiq) in the host galaxy MCG -01-60-027, at a redshift of z = 0.029 or d = 118 Mpc (from NED). The transient was discovered at MJD 58744.42 == 2019-09-18.42, at m_i = 20.45 +/- 0.24. It is offset from the host by 6.94" S, 5.56" E (a projected 4.4 kpc radius from the galaxy centre). At this distance the absolute magnitude is M_i = -14.99 (assuming m-M = 35.37 and foreground extinction of A_i = 0.074). 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 | 2019qiq [PS19fco] | 23:44:56.094 | -04:16:33.14 | SN | 0.029 | 23:44:56.094 | -04:16:33.14 | SN II | 0.0294 |
Comments