The connection between the parsec-scale radio jet and γ-ray flares in the blazar 1156+295

Venkatessh Ramakrishnan, Jonathan Leon-Tavares, Elizaveta A. Rastorgueva-Foi, Kaj Wiik, Svetlana G. Jorstad, Alan P. Marscher, Merja Tornikoski, Ivan Agudo, Anne Lahteenmaki, Esko Valtaoja, Margo F. Aller, Dmitry A. Blinov, Carolina Casadio, Natalia V. Efimova, Mark A. Gurwell, Jose L. Gomez, Vladimir A. Hagen-Thorn, Manasvita Joshi, Emilia Jarvela, Tatiana S. KonstantinovaEvgenia N. Kopatskaya, Valeri M. Larionov, Elena G. Larionova, Liudmilla V. Larionova, Niko Lavonen, Nicholas R. MacDonald, Ian M. McHardy, Sol N. Molina, Daria A. Morozova, Elina Nieppola, Joni Tammi, Brian W. Taylor, Ivan S. Troitsky

Результат исследований: Научные публикации в периодических изданияхстатья

14 Цитирования (Scopus)

Аннотация

© 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. The blazar 1156+295 was active at γ-ray energies, exhibiting three prominent flares during the year 2010. Here, we present results using the combination of broad-band (X-ray through mm single-dish) monitoring data and radio-band imaging data at 43 GHz on the connection of γ-ray events to the ejections of superluminal components and other changes in the jet of 1156+295. The kinematics of the jet over the interval 2007.0-2012.5 using 43 GHz Very Long Baseline Array observations reveal the presence of four moving and one stationary component in the inner region of the blazar jet. The propagation of the third and fourth components in the jet corresponds closely in time to the active phase of the source in γ-rays. We briefly discuss the implications of the structural changes in the jet for the mechanism of γ-ray production during bright flares. To localize the γ-ray emission site in the blazar, we performed the cor
Язык оригиналаанглийский
Страницы (с-по)1636-1646
Число страниц11
ЖурналMonthly Notices of the Royal Astronomical Society
Том445
Номер выпуска2
DOI
СостояниеОпубликовано - 2014

Fingerprint Подробные сведения о темах исследования «The connection between the parsec-scale radio jet and γ-ray flares in the blazar 1156+295». Вместе они формируют уникальный семантический отпечаток (fingerprint).

Цитировать