SIMBAD references

2011ATel.3387....1P - The Astronomer's Telegram, 3387, 1 (2011/May-0)

AGILE detection of enhanced gamma-ray emission from BL Lacertae.

PIANO G., TAVANI M., PITTORI C., VERRECCHIA F., LUCARELLI F., BULGARELLI A., STRIANI E., CARDILLO M., SABATINI S., GIANOTTI F., TRIFOGLIO M., ARGAN A., TROIS A., DE PARIS G., COSTA E., DONNARUMMA I., FEROCI M., PACCIANI L., DEL MONTE E., LAZZAROTTO F., SOFFITTA P., EVANGELISTA Y., LAPSHOV I., VITTORINI V., GIUSTI M., CARAVEO P., CHEN A., GIULIANI A., MEREGHETTI S., PEROTTI F., MARISALDI M., DI COCCO G., LABANTI C., FUSCHINO F., GALLI M., PUCELLA G., RAPISARDA M., VERCELLONE S., D'AMMANDO F., PELLIZZONI A., PILIA M., BARBIELLINI G., LONGO F., PICOZZA P., MORSELLI A., PREST M., LIPARI P., ZANELLO D., CATTANEO P.W., RAPPOLDI A., GIOMMI P., SANTOLAMAZZA P., VALENTINI G. and SALOTTI L.

Abstract (from CDS):

AGILE is detecting intense gamma-ray emission above 100 MeV from a source positionally consistent with BL Lacertae, at Galactic coordinates (l, b) = (93.3, -10.22) ± 0.8 (stat.) ± 0.1 (syst.) deg.

Integrating from 2011-05-27 11:57:31 UT to 2011-05-29 11:30:51 UT (MJD: 55708.5-55709.5), a maximum likelihood analysis yields a detection at a significance level larger than 5 sigma and a flux F = (3.9 ± 1.2) x 10^-6 ph/cm2/s (E > 100 MeV).

Enhanced gamma-ray flux from BL Lacertae was recently detected by Fermi-LAT (ATel #3368).

This measurement was obtained with AGILE observing a large portion of the sky in spinning mode.

Multifrequency observations of the BL Lacertae are strongly encouraged.


Abstract Copyright: ∼

Journal keyword(s): Ray - AGN - Blazar - Transient

Simbad objects: 1

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