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Discovery of Metastable Helium Absorption Lines in V1280 Scorpii
H. Naito, A. Tajitsu, A. Arai +1
We report the discovery of blue-shifted metastable He I* absorption lines at 3188 A and 3889 A with multiple components on high-resolution spectra (R ~ 60,000) of V1280 Scorpii. Si…
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV: The Fourth Year (2011-2012)
Taichi Kato, Franz-Josef Hambsch, Hiroyuki Maehara +85
Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we studied 86 SU UMa-type dwarf novae. We confirmed the general trends such as the relation between period…
Multi-wavelength observations of blazar AO 0235+164 in the 2008-2009 flaring state
M. Ackermann, M. Ajello, J. Ballet +208
The blazar AO 0235+164 (z = 0.94) has been one of the most active objects observed by Fermi Large Area Telescope (LAT) since its launch in Summer 2008. In addition to the continuou…
Five-Year Optical and Near Infrared Observations of the Extremely Slow Nova V1280 Scorpii
H. Naito, S. Mizoguchi, A. Arai +10
We present optical (, , , and ) and near infrared (, and ) photometric and spectroscopic observations of a classical nova V1280 Sc…