... RATAN-600 data for the BL Lacertae objects (multi-frequency catalogue, Version 1.0) . GPS radio sources . ... Kovalev et al. (2009) also investigated the correlation between radio emission and gamma-ray flux (using Fermi-LAT data after the first 3 months of observations) for 135 AGNs. ... Moreover, the correlation between high-frequency radio emission (at 37 GHz) and gamma-ray emission (100 MeV.100 GeV, Fermi-LAT data) for 249 northern AGNs was studied by Nieppola et al. ... GHz) . ...

... Credit Copyright: NASA , DOE , Fermi LAT Collaboration Explanation: A tremendous explosion has occurred in the nearby universe and major telescopes across Earth and space are investigating. ... Pictured in the above animation , the entire gamma-ray sky is shown becoming momentarily dominated by the intense glow of GRB 130427A. Continued tracking the optical counterpart will surely be ongoing as there is a possibility that the glow of a classic supernova will soon emerge. ... NASA Official: Jay...

... 2013 May 8 . Earth's Major Telescopes Investigate GRB 130427A . Illustration Credit: NASA , DOE , Fermi LAT Collaboration . Explanation: A tremendous explosion has occurred in the nearby universe and major telescopes across Earth and space are investigating. ... Neutrino , gravitational wave , and telescopes designed to detect only extremely high energy photons are checking their data for a GRB 130427A signal. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... Team . ... GRB mini-workshop 2006 . ... 6-meter telescope BTA: . The monitoring of gamma-ray burst afterglows and the study of their host galaxies . Monitoring of core-collapse supernovae and investigation of their host galaxies . ... Supernovae and gamma-ray bursts . ... Are some GRB host galaxies lying in galaxy clusters? ... Supernovae and gamma-ray bursts (Within the scope of the international program "Astronomy in Prielbrusiye") . ... The physics of gamma-ray bursts in the SWIFT era . ...

Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders . ... SLAC is hosting a workshop Nov 8-9, 2007, on the Future of Very High-Energy Gamma-Ray Astronomy . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

This is the homepage of Andrew Fruchter, an astronomer on the staff of the Space Telescope Science Institute . ... Here you can look at an HST images of the optical counterparts of gamma-ray bursts and their host galaxies. ... Therefore, substantial information on the fine scale structure of objects can be obtained by offsetting the pointing of the telescope between exposures and then combining these "dithered" exposures into a single image. ...

... News . ... Warped passages: Thursday 16 October 2008 . Irish Astronomical Society Talk: Professor Luke Drury will talk about "The New Gamma-Ray Sky" on October 20th, 8 pm, at Dunsink Observatory . ... Wednesday, 8 October 2008 23:37 . International Year of Astronomy, Ireland National Node . ...

... On the modeling of the late optical afterglows from cosmological gamma-ray-bursts . Interaction of cosmological gamma-ray burst radiation with the dense interstellar medium of host galaxy is researched. Gas dynamical motion of interstellar medium driven by gamma-ray burst is investigated in 2D approximation for different initial density distributions of host galaxy matter and different total energy of gamma-ray burst. ...

... GAMMA-RAY BURSTS . Nature of the cosmic gamma-ray bursts (GRB) is still not clear, but there are arguments in favor of their cosmological origin with the red shifts up to 3-4. Cosmological GRB produce huge amount of energy, which is considered in the form of an expanding fireball, or rapidly (ultrarelativistically) moving cannon balls. ... To explain this phenomenon a specific distribution of matter around the source was considered. ... previous page . next page . ... CYGAM (PDF, 450 Kb) . ...

... GCN 1488 . ... GCN 2001 , 2024 , 2046 , 2051 , 2054 , 2079 , 2094 , 2105 , 2108 , 2119 , 2198 , 2204 , 2220 , 2260 , 2299 , AstL (2003) , ApJ (2004) . ... GCN 2821 , 2826 , ApJ (2010) . ... GCN 3139 , ApJ (2010) . ... GCN 3493 , ApJ (2010) . ... GCN 3718 , ApJ (2010) . ... GCN 3853 , 3864 , 3896 , ApJ (2010) . ... GCN 5173 , 5177 , 5183 , 5186 , 5189 , 5193 , AstL (2007a) , AstL (2007b) , A (2010) . ... GCN 5524 , ApJ (2010) . ... GCN 9037 , ApJ (2010) . ... Russian-Turkish 1.5-m Telescope (RTT150) ...

We present photometric observations of six radio-loud quasars that were detected by the COMPTEL gamma-ray telescope. ... Two sources are as blue as optically-selected quasars, and are likely to be dominated by the accretion disc emission, while three others show colours consistent with a red synchrotron component. We discuss the properties of the COMPTEL sample of quasars, as well as the implications our observations have for multiwavelength modelling of gamma-ray quasars. | ... Australia . ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Publications of the ASP (PASP) . ... The Gamma-Ray Burst/Supernova Connection . ... After 30 years of bewilderment, astronomers finally know that collapsing massive stars generate most gamma-ray bursts. Gamma-ray bursts (GRBs) were first detected in the late 1960s by American military satellites designed to monitor Soviet compliance with the Nuclear Test Ban Treaty. ...

... November 5, 1997 . The Milky Way's Gamma-Ray Halo . Credit: D. Dixon ( UCR ), D. Hartmann ( Clemson ), E. Kolaczyk ( U. Chicago ), NASA . Explanation: Our Milky Way galaxy appears to be surrounded by a halo of gamma rays . Gamma rays are the most energetic form of electromagnetic radiation , with more than a hundred thousand times the energy of visible light, but known gamma-ray sources don't account for the diffuse distribution of this high-energy glow. ... About APOD > . ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... gamma-ray bursts . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... Original Version: `Very High Energy Phenomena in the Universe', Y. Giraud-Heraud and J. Tran Thanh Van eds., Editions Frontieres, p. 7. Invited Review Talk at the XXXIInd Moriond Conference , Les Arcs, January 1997) . Text copyright (c) 1997: Editions Frontieres . ... TeX file of the paper (requires moriond.sty and psfig.tex ) . ... Figure 1 (192kb) . Figure 2 (20kb) . Whole paper including figures: postscript file (344kb), gzipped version (123kb) Back to Paolo Padovani's Home Page ...

... Experimental base . ... The experimental base of the investigations is the topside sounding data obtained on board of the Intercosmos-19 and Cosmos-1809 satellites. ... It carried on board the following scientific payload: satellite ionospheric station for radio sounding of ionosphere (IS-338) and apparatus for the measurements of low-frequency electromagnetic field (VLF-2ME), electric component of high-frequency field (AHF-2K), electron temperature (KM-3), and spectrometer of photoelectrons (SF3-M)...

... Логотип миссии GLAST . ... Объектами наблюдения Fermi являются: активные ядра галактик, черные дыры, нейтронные звезды, пульсары, микроквазары, космические лучи и остатки сверхновых, галактика Млечный путь, наша Солнечная система, ранняя Вселенная, темная материя и другие высокоэнергетические источники. ... Не исключено, что именно данные с GLAST сыграют ключевую роль в разгадке тайны темной материи. ... Deep Space 1 . ... GLAST (Gamma-ray Large Area Space Telescope) . ... Союз (космический корабль)...

... Sokolov, V. V.; Kopylov, A. I. ; Zharikov, S. V.; Feroci, M.; Nicastro, L.; Palazzi, E. BVR_cI_c photometry of GRB 970508 optical remnant: May-August, 1997 . ... Sokolov, V. V.; Kurt, V. G.; Zharikov, S. V.; Kopylov, A. I. ; Berezin, A. V. Deep photometric study of the region of the gamma-ray burst localization of June 13, 1979 . ... Zharykov, S. V.; Kopylov, A. I. ; Sokolov, V. V. The Investigation of Moskalenko's 1959 Optical Transient Field Inside GRB 791101 Error Box . ...

Microsymposium 40, abstract 88, 2004 (A4 format) GAMMA RAYS FROM MAJOR ELEMENTS BY THERMAL NEUTRON CAPTURE REACTIONS: EXPERIMENT AND SIMULATION FOR PLANETARY GAMMA-RAY SPECTROSCOPY. ... Then the calculation can be restarted by producing gamma rays and let them trans- GAMMA RAYS FROM MAJOR ELEMENTS BY THERMAL NEUTRON CAPTURE REACTIONS: N. Yamashita et al. port and react, with initial energies determined the outside multiplication and initial locations wh neutron capture reaction took place. ...

11 august 2014/Monday: Arriving, Registration . ... The variation of solar flare coronal X-ray source spatial properties. ... Melnikov V.F., Charikov Yu.E., Kudriavtsev I.V. Directivity of X-ray and gamma-ray emission from different parts of flaring magnetic loops. ... E., Melnikov V.F. Angular characteristics of polarization degree of hard X-ray emission from different parts of flaring magnetic loops. ... The thick target model and analytical calculations of the hard X-ray emission from solar flares. ...