Göttingen 2012 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
T: Fachverband Teilchenphysik
T 91: Gammaastronomie 3
T 91.4: Talk
Wednesday, February 29, 2012, 17:30–17:45, ZHG 008
Multi-Wavelength Observations of Mrk 180 and 1ES 2344+514 — •Stefan Rügamer1, Emmanouil Angelakis2, Denis Bastieri3, Daniela Dorner4, Lars Fuhrmann2, Yu. Kovalev5, Yuri Kovalev2,5, Anne Lähteenmäki6, Elina Lindfors7, Francesco Longo8, Riho Reinthal7, Joseph Richards9, and Antonio Stamerra10 — 1Universität Würzburg, Germany — 2MPIfR, Bonn, Germany — 3Universita di Padova and INFN, Italy — 4ISDC, Versoix, Switzerland — 5Astro Space Center of Lebedev Physical Institute, Moscow, Russia — 6Aalto University Metsähovi Radio Observatory, Kylmälä, Finland — 7Tuorla Observatory, University of Turku, Piikkiö, Finland — 8Universita di Trieste, and INFN Trieste, Italy — 9Purdue University, West Lafayette, USA — 10Universita di Siena, and INFN Pisa, Italy
The high-frequency peaked BL Lac objects and Very High Energy gamma-ray emitters Mrk 180 and 1ES 2344+514 were the targets of extensive simultaneous multi-wavelength observations in 2008. The campaigns, ranging from the radio up to the TeV regime, represent the first of their kind on these objects. Significant variability has been detected at X-rays for both sources. Especially intriguing was the detection of an unprecedentedly strong flare of Mrk 180, which was accompanied by significant spectral variability, making this source another 'extreme blazar' candidate. 1ES 2344+514 was observed in one of the lowest flux states ever at several wavelengths. This contribution will discuss the observation campaigns, multi-wavelength light curves and spectral energy distributions of the two sources.