LIGO/Virgo G274296: PSN MASTER OT J042250.16-820415.4 is before maximum
Abstract
MASTER-SAAO reobserved PSN MASTER OT J042250.16-820415.4, discovered on 2017-02-19.12023UT (Lipunov et al., GCN 20696) in W, BVRI . This PSN arises, so it has possibility to explode on the 17th of Feb 2017 (Peter Shawhan, GCN 20689) . Preliminary photometry is the following: Date UT mag 2017-02-19 02:37:46 UT W=16.3 (discovery date) 2017-02-19 19:25:59 UT W=16.2 2017-02-20 19:23:54 UT W=15.7 2017-02-20 18:43:57 UT V=16.0 2017-02-20 19:07:59 UT I=15.9 2017-02-20 19:07:59 UT R=16.0 The spectroscopy observations are required its age and type determination. Light curve is available at http://master.sai.msu.ru/static/OT/MASTEROTJ04225016-8204154.jpg
- Publication:
-
GRB Coordinates Network
- Pub Date:
- February 2017
- Bibcode:
- 2017GCN.20711....1L