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Gaia Alerts classified at the William Herschel Telescope

ATel #6593; G. Rixon, M. Fraser, S. Koposov, N. Blagorodnova, H. Campbell, S. T. Hodgkin, G. van Leeuwen, N. Walton (University of Cambridge), L. Wyrzykowski (Warsaw Observatory), T. Wevers, P. Jonker, S. van Velzen (RU Nijmegen), S. Benetti (Padova Observatory), E. Breedt (University of Warwick), G. Busso (University of Cambridge), R. Busuttil (Open University), C. Davis (Liverpool John Moores), F. De Angeli (University of Cambridge), M. Dennefeld (Institut d'Astrophysique de Paris), N. Elias-Rosa (Padova Observatory), D. W. Evans (University of Cambridge), D. Froebrich (University of Kent), B. Gaensicke (University of Warwick), G. Gilmore (University of Cambridge), A. Gomboc (University of Ljubljana), A. Hamanowicz (Warsaw University Observatory), B. Handzlik (Warsaw University Observatory), L. Hardy (University of Sheffield), K. Ilkiewicz (Warsaw University Observatory), M. Irwin (University of Cambridge), J. F. Jarvis (Open University), D. A. Kann (TLS Tautenburg), U. Kolb (Open University), S. Komossa (MPIfR), Z. Kostrzewa-Rutkowska, S. Littlefair (University of Sheffield), A. Mahabal (Caltech), P. O'Brien (University of Leicester), P. Ochner (Padova Observatory), M. Riello (University of Cambridge), M. Pawlak (Warsaw University Observatory), A. Pigulski (University of Wroclaw), R. Pretorius (University of Oxford), K. Rybicki (Warsaw University Observatory), A. Scholz (University of St. Andrews), M. Sitek (Warsaw University Observatory), D. Steeghs (University of Warwick), L. Tomasella (Padova Observatory), M. Turatto (Padova Observatory), K. Ulaczyk (Warsaw University Observatory), F. van Leeuwen (University of Cambridge), T. Prusti (ESA)
on 19 Oct 2014; 14:48 UT
Credential Certification: Morgan Fraser (mf@ast.cam.ac.uk)

Subjects: Optical, Binary, Cataclysmic Variable, Star, Transient, Variables

Referred to by ATel #: 6626, 6640, 6641, 6646, 6750, 7378, 7448, 7530, 7628, 8992, 9220, 9226, 9230, 9256, 9279, 9421, 9580, 9585, 9610, 9888, 9985, 9990, 10009, 10029, 10116, 10192

We report spectroscopic confirmation and classifications for reported Gaia Photometric Science Alerts (http://gaia.ac.uk/selected-gaia-science-alerts). All spectra were taken at the 4.2m William Herschel Telescope on La Palma, over the nights of 13-15 October 2014. Low to intermediate resolution spectra were taken using ISIS+R300B/R158R and ACAM+V400, and reduced and calibrated spectra are available for download (http://gaia.ac.uk/sites/default/files/file_attach/FUGA_WHT_20141013-15.tar.gz)

Name       RA          Dec        Instrument    Date of spectrum       Classification / Comments 
GAIA14AAE  242.89156   63.14217   ACAM          2014-10-13.9           GALEX 2679054677788594106. Double peaked He emission lines at z=0, no H, AM CVn, aka ASASSN-14cn 
GAIA14AAF  244.25381   62.00685   ACAM          2014-10-13.9/15.8      Narrow Balmer emission with double peaked line profiles at z=0. CV. 
GAIA14AAI  23.88339   -20.40796   ACAM          2014-10-14.0           M star 
GAIA14AAT  52.76852    17.42784   ACAM          2014-10-14.0           Narrow Balmer emission at z=0, known CV (CSS081107:033104+172540, also see ATel #6581). 
GAIA14AAU  237.94493   16.62637   ACAM          2014-10-13.8           M star 
GAIA14ABG  262.69947   50.00445   ACAM          2014-10-13.9           Blue, Balmer absorption at z=0. Probable CV. 
GAIA14ABQ  58.59016   -11.31998   ISIS          2014-10-15.2/16.0      M-star 
GAIA14ABR  59.38013   -9.65999    ACAM          2014-10-15.2           M-star 
GAIA14ABY  55.51929   -22.17277   ISIS          2014-10-15.1           Galaxy, no transient on acquisition image. 
We acknowledge ESA Gaia (http://cosmos.esa.int/gaia), and the DPAC Photometric Science Alerts Team (http://gaia.ac.uk/selected-gaia-science-alerts).

Gaia Science Alerts