Fermi Large Area Telescope and Multi-wavelength Observations of the Flaring Activity of Pks 1510-089 between 2008 September and 2009 June

  title={Fermi Large Area Telescope and Multi-wavelength Observations of the Flaring Activity of Pks 1510-089 between 2008 September and 2009 June},
  author={Arwa Ahmed Abdo and Markus Ackermann and Iv{\'a}n Agudo and Marco Ajello and A. Allafort and Hugh D. Aller and Margo F. Aller and Ermete Antolini and Arkady A. Arkharov and Magnus Axelsson and Uwe Bach and L. Baldini and Jean Ballet and Guido Barbiellini and Denis Bastieri and Keith C. Bechtol and Ronaldo Bellazzini and Alexey Berdyugin and Bijan Berenji and Roger D. Blandford and Dmitriy Blinov and Elliott D. Bloom and Markus B{\"o}ttcher and Emanuele Bonamente and Anders Borgland and audrey. bouvier and Johan Bregeon and Alessandro Brez and Monica Brigida and Philippe Bruel and Rolf Buehler and Catia Buemi and Toby Burnett and Sara Buson and Giuseppe Andrea Caliandro and Robert P Cameron and Patrizia A Caraveo and D. Carosati and Sean W. Carrigan and J. M. Casandjian and Elisabetta Cavazzuti and C. Cecchi and {\"O}mer Çelik and Alexandre Chekhtman and W.-P. Chen and Chi Chiu Cheung and James Chiang and Stefano Ciprini and Ron Claus and Johann Cohen-Tanugi and Jan O. Conrad and S. Corbel and Luigi Costamante and Charles D. Dermer and Alessandro De Angelis and Francesco De Palma and Davide Donato and Eduardo do Couto e Silva and Persis S. Drell and Richard Dubois and D. Dumora and C. Farnier and Cecilia Favuzzi and Sarah Fegan and Elizabeth C Ferrara and Warren B. Focke and E. Forn{\'e} and Pascal Fortin and Yasushi Fukazawa and Seb. Funk and Piergiorgio Fusco and Fabio Gargano and Dario Gasparrini and Neil A. Gehrels and Stefano Germani and Berrie Giebels and Nicola Giglietto and Francesco Giordano and Marcello Giroletti and Tom Glanzman and Gary Godfrey and Isabelle A. Grenier and James E. Grove and Sylvain Guiriec and Mark A. Gurwell and C. Gusbar and Jos{\'e} L{\'u}ıs G{\'o}mez and Daniela Hadasch and Vladimir A. Hagen-Thorn and Masaaki Hayashida and Eva Hays and Deirdre Horan and Richard E. Hughes and Gudlaugur J{\'o}hannesson and Allan S Johnson and W. Neil Johnson and T. Kamae and Hideaki Katagiri and Jun Kataoka and Nobuyuki Kawai and G. Kimeridze and J{\"u}rgen Kn{\"o}dlseder and Tatiana S. Konstantinova and Eugenia N. Kopatskaya and Ekaterina Koptelova and Yu. Yu. Kovalev and Omar M. Kurtanidze and Michael Kuss and A. Lahteenmaki and Joshua Lande and Valeri M. Larionov and Elena G. Larionova and Liudmilla V. Larionova and Stefan Larsson and Luca Latronico and S. Lee and Patricia Leto and Matthew L. Lister and Francesco Longo and Francesco Loparco and Benoit Lott and Michael N Lovellette and Pasquale Lubrano and Grzegorz Madejski and Andrei Makeev and Enrico Massaro and M. N. Mazziotta and William F McConville and Julie Mcenery and Ian M. McHardy and P. F. Michelson and Warit Mitthumsiri and Tsunefumi Mizuno and Arsenii Moiseev and C. Monte and Maria Elena Monzani and Daria A. Morozova and Aldo Morselli and Igor V Moskalenko and S. Murgia and M. Naumann-God{\'o} and Maria G. Nikolashvili and P. L. Nolan and Jay P. Norris and Eric Nuss and Masanori Ohno and Takashi Ohsugi and Aiko Okumura and Nicola Omodei and E. Orlando and Jonathan F. Ormes and Masanobu Ozaki and David Paneque and J. H. Panetta and Damien Parent and Markku Pasanen and V. Pelassa and Monica Pepe and Melissa Pesce-Rollins and Fr{\'e}d{\'e}ric Piron and Troy A. Porter and A. B. Pushkarev and S Rando Rain{\`o} and Claudia M. Raiteri and Riccardo Rando and Massimiliano Razzano and Anita Reimer and Olaf Reimer and Riho Reinthal and Joachim Ripken and Stefan P. Ritz and M. Roca-Sogorb and Angel D{\'i}az Rodr{\'i}guez and Miguel Roth and P. Roustazadeh and Felix Ryde and Hartmut F.-W. Sadrozinski and Andreas Sander and Jeffrey D. Scargle and Carmelo Sgr{\`o} and Lorand A. Sigua and Paul D. Smith and Kirill Sokolovsky and Gloria Spandre and Paolo Spinelli and J R Starck and Mark S. Strickman and Daniel J. Suson and Hiromitsu Takahashi and Tadayuki Takahashi and L. O. Takalo and Takaaki Tanaka and Brian Taylor and Jana B Thayer and J. G. Thayer and David W. J. Thompson and Luigi Tibaldo and Merja Tornikoski and Diego F. Torres and Gino Tosti and A. Tramacere and Corrado Trigilio and Ivan S. Troitsky and Grazia Umana and Timothy Usher and Justin Vandenbroucke and Vlasios Vasileiou and Natalie Povilonis de Vilchez and Massimo Villata and Vito Vitale and A. P. Waite and Pengjun Wang and Barry Winer and Kent S. Wood and Zhongqin Yang and Tomi Ylinen and Marc Ziegler},
We report on the multi-wavelength observations of PKS 1510-089 (a flat spectrum radio quasar (FSRQ) at z = 0.361) during its high activity period between 2008 September and 2009 June. During this 11 month period, the source was characterized by a complex variability at optical, UV, and γ -ray bands, on timescales down to 6–12 hr. The brightest γ -ray isotropic luminosity, recorded on 2009 March 26, was 2 × 1048 erg s−1. The spectrum in the Fermi Large Area Telescope energy range shows a mild… CONTINUE READING