Details

Autor(en) / Beteiligte

• Giommi, P
• Polenta, G
• Laehteenmaeki, A
• Thompson, D J
• Capalbi, M
• Cutini, S
• Gasparrini, D
• Gonzalez-Nuevo, J
• Leon-Tavares, J
• Lopez-Caniego, M
• Mazziotta, M N
• Monte, C
• Perri, M
• Raino, S
• Tosti, G
• Tramacere, A
• Verrecchia, F
• Aller, H D
• Aller, M F
• Angelakis, E
• Bastieri, D
• Berdyugin, A
• Bonaldi, A
• Bonavera, L
• Burigana, C
• Burrows, D N
• Buson, S
• Cavazzuti, E
• Chincarini, G
• Colafrancesco, S
• Costamante, L
• Cuttaia, F
• D'Ammando, F
• deZotti, G
• Frailis, M
• Fuhrmann, L
• Galeotta, S
• Gargano, F
• Gehrels, N
• Giglietto, N
• Giordano, F
• Giroletti, M
• Keihaenen, E
• King, O
• Krichbaum, T P
• Lasenby, A
• Lavonen, N
• Lawrence, C R
• Leto, C
• Lindfors, E
• et. al

Titel

Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma -ray selected blazars

Ist Teil von

• Astronomy and astrophysics (Berlin), 2012-05, Vol.541, p.1-1

Erscheinungsjahr

2012

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• The researchers present simultaneous Planck, Swift, Fermi, and ground-based data for 105 blazars belonging to three samples with flux limits in the soft X-ray, hard X-ray, and ...-ray bands, with additional 5GHz flux-density limits to ensure a good probability of a Planck detection. They compare the results to those of a companion paper presenting simultaneous Planck and multi-frequency observations of 104 radio-loud northern active galactic nuclei selected at radio frequencies. While they confirm several previous results, our unique data set allows them to demonstrate that the selection method strongly influences the results, producing biases that cannot be ignored. Almost all the BL Lac objects have been detected by the Fermi Large Area Telescope, whereas 30% to 40% of the flat-spectrum radio quasars in the radio, soft X-ray, and hard X-ray selected samples are still below the ...-ray detection limit even after integrating 27 months of Fermi-LAT data. (ProQuest: ... denotes formulae/symbols omitted.)