[vsnet-alert 16017] ASASSN-13bq is indeed a dwarf nova (ATEL)
tkato at kusastro.kyoto-u.ac.jp
Fri Jul 19 07:26:55 JST 2013
ASASSN-13bq is indeed a dwarf nova. The object is most likely
an SU UMa-type (or even WZ Sge-type). Time-resolved photometry
ATEL #5213 ATEL #5213
Title: Spectroscopic classification of ASASSN-13bq: Hydrogen-rich
Author: C. M. Copperwheat, D. F. Bersier (LJMU), K. Z. Stanek, B.
J. Shappee, C. S. Kochanek, J. Jencson, U. Basu, T. Holoien, J. F.
Beacom (Ohio State), J. L. Prieto (Princeton), D. Szczygiel, G. Pojmanski
(Warsaw University Observatory), M. Dubberley, M. Elphick, S. Foale,
E. Hawkins, D. Mullens, W. Rosing, R. Ross, Z. Walker (Las Cumbres
Observatory), J. Brimacombe (Coral Towers Observatory)
Queries: jprieto at astro.princeton.edu
Posted: 18 Jul 2013; 15:34 UT
Subjects:Optical, Cataclysmic Variable, Transient
We observed the transient ASASSN-13bq (ATel #5209) on UT 2013 July 16.98
for 17 minutes with the FRODOspec spectrograph mounted on the robotic 2.0m
Liverpool Telescope (LT). We obtained two simultaneous spectra, one covering
the wavelength range 390-570 nm with R=2600, and one covering 580-900 nm
with R=2200. We detect a blue continuum with H-beta and H-gamma seen in
absorption at z=0. H-alpha is undetected. These features are indicative
of a hydrogen-rich dwarf nova in outburst.
ASASSN-13bq was seen again by ASAS-SN on UT 2013 July 18.5 with V=15.5,
compared to V=15.1 on 2013 July 16.6.
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