The classical nova V339 Del 2013 is characterized by a 1.5 mag dip of the V light curve owing to a dust shell formation, with which soft X-ray emissions coexist. We present a Strömgren y-band light curve, which represents continuum emis...
C M Raiteri M Villata M I Carnerero S S Savchenko S O Kurtanidze V V Vlasyuk A Marchini K Matsumoto C Lorey M D Joner K Gazeas D Carosati D O Mirzaqulov J A Acosta Pulido I Agudo R Bachev E Benítez G A Borman P Calcidese W P Chen G Damljanovic S A Ehgamberdiev D Elsässer M Feige A Frasca H Gaur T S Grishina A C Gupta D Hiriart M Holland B Horst S Ibryamov R Z Ivanidze J Jensen V Jithesh M D Jovanovic S Kiehlmann G N Kimeridze S Kishore E N Kopatskaya O M Kurtanidze E G Larionova H C Lin K Mannheim C Marinelli J Moreira Reyes D A Morozova M G Nikolashvili D Reinhart F D Romanov E Semkov J Seufert E V Shishkina L A Sigua R Skalidis O I Spiridonova M Stojanovic A Strigachev Y V Troitskaya I S Troitskiy A Tsai A A Vasilyev O Vince K Vrontaki K Wani D Watts A V Zhovtan
Monthly Notices of the Royal Astronomical Society 526(3) 4502-4513 2023年12月 [査読有り]
ABSTRACT
In 2022 the BL Lac object S4 0954+65 underwent a major variability phase, reaching its historical maximum brightness in the optical and γ-ray bands. We present optical photometric and polarimetric data acquired by the Whole Earth Blazar...
Mauri J Valtonen Staszek Zola A Gopakumar Anne Lähteenmäki Merja Tornikoski Lankeswar Dey Alok C Gupta Tapio Pursimo Emil Knudstrup Jose L Gomez Rene Hudec Martin Jelínek Jan Štrobl Andrei V Berdyugin Stefano Ciprini Daniel E Reichart Vladimir V Kouprianov Katsura Matsumoto Marek Drozdz Markus Mugrauer Alberto Sadun Michal Zejmo Aimo Sillanpää Harry J Lehto Kari Nilsson Ryo Imazawa Makoto Uemura James W Davidson
Monthly Notices of the Royal Astronomical Society 525(1) 1153-1157 2023年10月 [査読有り]
ABSTRACT
The highly variable blazar OJ 287 is commonly discussed as an example of a binary black hole system. The 130 yr long optical light curve is well explained by a model where the central body is a massive black hole of 18.35 109 s...
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