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GCN Circular 21691

Subject
LIGO/Virgo G298936: Liverpool Telescope Spectoscopy of GWFUNC-17ure
Date
2017-08-25T13:29:12Z (7 years ago)
From
Iain Steele at Liverpool/JMU <i.a.steele@ljmu.ac.uk>
I. A. Steele, C.M. Copperwheat, A.S. Piascik (Liverpool JMU)

report on behalf of

D.Bersier (LJMU), M.Bode (LJMU), C.Collins (LJMU), M.Darnley (LJMU), D.Galloway (Monash), A.Gomboc (Nova Gorica), S.Kobayashi (LJMU), A. Levan (Warwick), P.Mazzali (LJMU), C.Mundell (Bath), E.Pian (Pisa), D. Pollacco (Warwick), D. Steeghs (Warwick), N.Tanvir (Leicester), K. Ulaczyk (Warwick), K.Wiersema (Leicester)

and the GROWTH (Global Relay of Observatories Watching Transients Happen) collaboration.

----

We obtained a spectrum using the SPRAT spectrograph of the Liverpool
Telescope, La Palma on 2017-08-25 at 05:25UT of the CNEOST detected transient
GWFUNC17-ure (Xu et al, GCN 21675).

Using SNID we classify the source as a Type Ia supernova at redshift z=0.04
and age +18 days.

Assuming z=0.04, the Si ejecta velocity is ~10,000 km/s.

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--
iain Steele
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