E-resources
-
Abdo, A. A; Ackermann, M; Ajello, M; Atwood, W. B; Axelsson, M; Bloom, E. D; Borgland, A. W; Brez, A; Bruel, P; Burnett, T. H; Caliandro, G. A; Cavazzuti, E; Chekhtman, A; Chen, A. W; Chiang, J; Ciprini, S; Cohen-Tanugi, J; Colafrancesco, S; Collmar, W; Cominsky, L. R; Conrad, J; Costamante, L; Dermer, C. D; de Palma, F; Drell, P. S; Favuzzi, C; Fegan, S. J; Fukazawa, Y; Gasparrini, D; Germani, S; Giglietto, N; Giommi, P; Giordano, F; Giroletti, M; Glanzman, T; Grenier, I. A; Grove, J. E; Guillemot, L; Guiriec, S; Hanabata, Y; Harding, A. K; Hays, E; Hughes, R. E; Jóhannesson, G; Johnson, T. J; Kataoka, J; Kerr, M; Kuss, M; Lande, J; Lemoine-Goumard, M; Longo, F; Lott, B; Massaro, E; McConville, W; McGlynn, S; Meurer, C; Michelson, P. F; Mitthumsiri, W; Mizuno, T; Moiseev, A. A; Monte, C; Monzani, M. E; Moskalenko, I. V; Nuss, E; Ohsugi, T; Omodei, N; Orlando, E; Ormes, J. F; Ozaki, M; Paneque, D; Panetta, J. H; Parent, D; Pelassa, V; Pepe, M; Piron, F; Rainò, S; Razzano, M; Reimer, O; Rodriguez, A. Y; Romani, R. W; Sadrozinski, H. F.-W; Saz Parkinson, P. M; Sellerholm, A; Sgrò, C; Shaw, M. S; Smith, D. A; Smith, P. D; Strickman, M. S; Suson, D. J; Tanaka, T; Thayer, J. B; Tibaldo, L; Tramacere, A; Uchiyama, Y; Usher, T. L; Vilchez, N; Waite, A. P; Winer, B. L; Wood, K. S; Ziegler, M
The Astrophysical journal, 07/2009, Volume: 700, Issue: 1Journal Article
The first three months of sky-survey operation with the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope reveal 132 bright sources at |b| > 10 degrees with test statistic greater than 100 ( corresponding to about 10 sigma). Two methods, based on the CGRaBS, CRATES, and BZCat catalogs, indicate high-confidence associations of 106 of these sources with known active galactic nuclei (AGNs). This sample is referred to as the LAT Bright AGN Sample (LBAS). It contains two radio galaxies, namely, Centaurus A and NGC 1275, and 104 blazars consisting of 58 flat spectrum radio quasars (FSRQs), 42 BL Lac objects, and 4 blazars with unknown classification. Four new blazars were discovered on the basis of the LAT detections. Remarkably, the LBAS includes 10 high-energy-peaked BL Lacs (HBLs), sources which were previously difficult to detect in the GeV range. Another 10 lower-confidence associations are found. Only 33 of the sources, plus two at |b| < 10 degrees, were previously detected with Energetic Gamma-Ray Experiment Telescope( EGRET), probably due to variability. The analysis of the gamma-ray properties of the LBAS sources reveals that the average GeV spectra of BL Lac objects are significantly harder than the spectra of FSRQs. No significant correlation between radio and peak gamma-ray fluxes is observed. Blazar log N-log S distributions and luminosity functions are constructed to investigate the evolution of the different blazar classes, with positive evolution indicated for FSRQs but none for BL Lacs. The contribution of LAT blazars to the total extragalactic gamma-ray intensity is estimated.
Author
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.