ATEL Spectra with Gaia
Template for spectral follow-up of Gaia targets.
Spectroscopic classification of Gaia, ASAS-SN and TOCP transients with the WHT ISIS.
H. Campbell (University of Cambridge), T. Wevers (RU Nijmegen), M. Fraser (University of Cambridge), P. G. Jonker (SRON & RU Nijmegen), L. Wyrzykowski (Warsaw Observatory), S. Hodgkin, N. Blagorodnova (University of Cambridge)
We report spectroscopic confirmation and classifications for reported Gaia Photometric Science Alerts (http://gaia.ac.uk/selected-gaia-science-alerts), together with targets from the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014) and the TOCP list. All spectra were taken with the 4.2m William Herschel Telescope on La Palma, over the nights of 11 to 12 June. Low resolution spectra were taken using ISIS with the R158R and R300B gratings. The classifications were done with SNID (Blondin and Tonry 2007, ApJ, 666, 1024).
Name | RA (J2000) | Dec (J2000) | Disc. Source | Disc. Date | Disc Mag | z | Type | Phase | Notes<br> Gaia15agj | 03:11:11.50 | +37:58:2.10 | Gaia | 2015-06-03 | 18.49 G | 0.04 | SN Ia | Max | Also classified in ATEL #7623 PSN J14372160+3634018 | 14:37:21.60 |+36:34:01.8 | CBET | 2015-06-12 | | 0.014093 | SN II | +5d | (1)
(1) Shows broad Halpha, consistent with a Type II SN soon after explosion.
We acknowledge ESA Gaia (cosmos.esa.int/gaia), and the DPAC Photometric Science Alerts Team (http://gaia.ac.uk/selected-gaia-science-alerts).