The 'Crazy Diamond' (and other blazars)

Journal Article · Wed Apr 08 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3125772· OSTI ID:21293531

Vercellone, S ^[1]; Donnarumma, I; Pacciani, L; Pucella, G; Vittorini, V ^[2]; Bulgarelli, A ^[3]; Chen, A W ^[4]; D'Ammando, F; Tavani, M ^[2]; Giuliani, A ^[1]; Longo, F ^[5]

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1. INAF/IASF Milano, Via Bassini 15, 20133 Milano (Italy)
2. INAF/IASF Roma, Via Fosso del Cavaliere 100, 00133 Roma (Italy)
3. INAF/IASF Bologna, Via Gobetti 101, 40129 Bologna (Italy)
4. CIFS-Torino, Viale Settimio Severo 3, 10133 Torino (Italy)
5. Dip. di Fisica and INFN, Via Valerio 2, 34127 Trieste (Italy)

During the first year of observations, AGILE detected several blazars at high significance: 3 C 279, 3C 454.3, PKS 1510-089, S5 0716+714, 3 C 273, MKN 421, and W Comae. We obtained long-term coverage of the Crazy Diamond 3 C 454.3, for more than 100 days at energies above 100 MeV. 3 C 273 was the first blazar detected simultaneously by the AGILE gamma-ray imaging detector and by its hard X-ray monitor. S5 0716+714, an intermediate BL Lac object, exhibited a very fast and intense gamma-ray transient event during an optical high-state phase, while MKN 421 and W Comae where detected during an AGILE target of opportunity (ToO) repointing. Thanks to the rapid dissemination of our alerts, we were able to obtain multi-wavelength ToO data from other observatories such as Spitzer, Swift, INTEGRAL, RXTE, Suzaku, MAGIC, VERITAS, as well as optical coverage by means of the WEBT Consortium and REM.

• OSTI ID: 21293531
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1112; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ASTROPHYSICS
COSMIC PHOTONS
GALAXIES
GAMMA ASTRONOMY
GAMMA DETECTION
GAMMA RADIATION
HARD X RADIATION
MEV RANGE
QUASARS
TRANSIENTS
WAVELENGTHS