Title: GRBs: open issues Author: Gabriele Created Date: 4/25/2004 2:16:39 PM Document presentation format: Presentazione su schermo Other titles: Arial Comic Sans MS ...
Title: X-Rays & -Rays from Relativistic Jets in Quasars Author: Alan P. Marscher Last modified by: Veniamin Vityazev Created Date: 1/21/2002 2:54:56 AM
57 FSRQs and 42 BL Lacs. Redshift for all FSRQs and for 30 BL Lacs ... EGRET blazars. Low power slow cooling large gpeak. Big power fast cooling small gpeak ...
survey of EGRET-like blazar candidates. ... background EGRET photons. J0906 ... EGRET upper limit only lies in the overlap between two 3EG sources. So...
Class of AGN consisting of BL Lac objects and gamma-ray bright quasars ... Qe,p (g,t) g. Synchrotron emission of primary e- nFn. n. Proton-induced radiation ...
Schematic illustration depicting the standard AGN paradigm, based on a central ... to model the observed double helical structure of the jet in the quasar 3C273. ...
We requested observation time from the 0.9m WIYN telescope to be in coincidence with VERITAS observations of the three blazars. Time was allocated in the period ...
many models: binary BH, precession of the jet, perturbations to the disk,.. periodicity found ... precession of system. gravitational lensing from the secondary ...
Bright stars in FOV and galaxy nearby to target make analysis of thermal band data tricky. ... use of 7 comparison stars (statistics issues?) MRK 421 PAIRITEL ...
VLBA Observations of EGRET Blazars. Why were some strong radio quasars detected by EGRET while others like 3C345 were not? ... EGRET VLBA observations (1994-1997) ...
importance of the SID. importance of accounting for measurement error. Affect the blazar ... Mattox, J. F., Hartman, R. C., & Reimer, O., ApJS, 135, 155 ...
The non-ballistic model for blazar 1803 784. Huazhong ... Kellermann et al 2004. BUT. Ballistic precession ? The formation of a hot spot. Theoretical ...
... spectrum at high energies asymptotes to a spectrum with the ... low energy (Thomson regime) asymptote but with a normalization that is a factor q higher. ...
Active galaxies. 1943 Carl Seyfert fundamentals of AGN class (Seyfert galaxies) ... MS) in the center of the galaxy with accretion disk, dust torus and ...
... of the signal, to determine auto/cross-correlations and time lags, transient ... Intra-day (hours) variations can be detected for the brightest gamma-ray blazars. ...
Wide gaps between some lobes in radio galaxies imply jets launched after mergers ... If jets are moderately conical, the standard analysis, which assumes =0, would ...
How are particles accelerated to relativistic energies? ... Lind et al. 1989. Blandford & Levinson 1995. Sikora, Begelman & Rees 1994. Science: theory ...
Cosmological Evolution of Blazars: new findings from the Swift/BAT ... L. Costamante, R. Sambruna, N. Gehrels, J. Greiner, J. Tueller, ... inflates cavities ...
compact structures are resolved in higher resolution images. no proper motion over 9 epochs ... high resolution and sensitivity essential. HSA: perpendicular B field ...
Emission de tr s haute nergie des blazars et physique des jets ... r acc l r es par la turbulence du jet ambiant. SF2A/PCHE Paris 18 juin 2004. Acc l ration ...
... which have been observed in this fashion found in the literature. ... We show in figure 4 the utility of this approximation by assuming an E-2 source ...
Egret blazars. Blazars are AGN with jet. illuminating observer. Two-component spectra ... GeV g (Egret) TeV. ICHEP 2002, Amsterdam, July 31, 2002. Thomas K. Gaisser ...
Statistical analysis of model-fitted inner-jets of the MOJAVE blazars Xiang Liu, Ligong Mi, et al. Xinjiang Astronomical Observatory (Former Urumqi Observatory), CAS
... for the polarization and the structure of relativistic parsec scale AGN jets ... Radio Jet-Ambient Medium Interactions on Parsec Scales in the Blazar 1055 018 ...
For several EGRET blazars, recent VLBI shows: vapp 25c (hence j 25) (Piner et al. 2006) ... Why deceleration in TeV blazars only (and not in EGRET blazars) ...
EGRET. Date/Group. Type. Source. Catalog Name. C. no. 1997/Whipple. Blazar. 1ES2344 ... Only two in EGRET Catalog. July 22-23, 2004. Trevor Weekes Watson Fest ...
Lunch discussion on motivations for studying blazar variability ... X-ray precursor: jet matter content (e /e- vs Poynting flux, p /e-), jet environment ...
i.e. spectra different than normal galaxies ... quiet), Radio Galaxies, Seyfert Gal. ( type 1 & type 2), Ultra-luminous IR galaxies & BLAZARs ! BLAZARs are ...
EGRET discovered that blazar-class active galactic nuclei are bright and ... intermediate Black Holes: 102 MO MBH 106MO ) in Galactic Halo (Bertone, ...
Most populated class of EGRET identified sources. Only class with identified members at high z ... EGRET constraints on the unresolved blazar emission spectral ...
Characterize, monitor and optimize LAT Performance at all levels ... GRBs and blazar flares development of algorithms for detection and characterization ...
All EGRET blazars with peak gamma-ray flux above 10-6 photons cm-2 s-1 were ... 66 out of 116 northern EGRET sources have at least one plausible blazar like ...
14th International School of Cosmic Ray Astrophysics, Erice 04. The VHE ... BL Lac Mrk421. EGRET. IACTs. Roger Firpo, ISCRA 2004. Blazar observation prospects ...
... bottom zooms in along y axis to better show the difference between ... Blazars are strong sources of high energy emissions (energies greater than 100 MeV) ...