Общая Астрономическая Конференция > Практика > Астрономический наблюдательно-информационный портал > Метеорные потоки (наиболее заметные) > Гамма Дельфиниды / Gamma Delphinids (GDE) - 11 июня возможна вспышка активности (outburst 2013)! ... Просмотр полной версии : Гамма Дельфиниды / Gamma Delphinids (GDE) - 11 июня возможна вспышка активности (outburst 2013)! ... 06.06.2013, 23:57 . Гамма Дельфиниды / Gamma Delphinids (GDE) - 11 июня возможна вспышка активности (outburst 2013)! . ...

... Sun images . ... Active areas . October : 2013 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Beta-Gamma . ... Coordinates and other characteristics of active regions are issued for October 30, 2013 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for October 30, 2013 00:31 UT . ...

... 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) . ...

Are local neutron stars the source of gamma ray bursts? ... Abstract We investigate models for the galactic neutron star origin for gamma ray bursts given the current parameters from the BATSE experiment. ... We also consider two-population models and find that we cannot reproduce any two population model consisting of a combination of halo and local bursts in which the local bursts originate from further than 1 kpc. ...

... Character codes are given in hexadecimal when available for the Postscript symbol set and HP's math -8 symbol set. ldots; \ldots three dots on the baseline cdots; \cdots three dots on same level as a minus sign vdots; \vdots three vertical dots ddots; \ddots diagonal dots (top left to bottom right) dotfill; \dotfill like cdots but fills column in an array thinsp; \, thin space sp; \: medium space emsp; \; thick ...

Cadmium-Zinc Telluride Cd 1-x Zn x Te (CZT) . ... Detectors of the ionizing radiations (alpha, gamma, X-ray); IR optics; Substrates; Crystal pieces for vacuum deposition . ... Range of "x" in Cd 1-x Zn x Te . ... Conductivity type . p -type or n -type . ... Max. detector element size . ... Max. optical quality crystal dimensions . ... Cd 0.9 Zn 0.1 Te: blanks for detectors . Cd 0.85 Zn 0.15 Te: optical filters . ...

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Активность : 1 октября-25 ноября; Максимум : 5 ноября 05ч UT (lambda = 223њ); ZHR = 5; Радиант : alpha = 052њ, delta = +13њ; V = 27 км/сек.; r = 2.3; некоторые пояснения Активность : 1 октября-25 ноября; Максимум : 12 ноября 04ч UT (lambda = 230њ); ZHR = 5; Радиант : alpha = 058њ, delta = +22њ; V = 29 км/сек.; r = 2.3; некоторые пояснения . Рисунок 1: Дрейф радиантов Южных и Северных Таурид: . Южные и Северные Тауриды являютя частью метеорного комплекса, связанного с кометой 2P/ Энке. ...

... 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 . ... Magazine . ... 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 rays . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

Mercury Spring 2010 Table of Contents . ... But our lack of understanding is not as dire as perhaps it first seems, for key observations during the last 20 years have allowed astronomers to piece together at least part of the puzzle surrounding the GRB phenomenon. ... If you enjoyed this excerpt from a feature article and would like to receive our quarterly Mercury magazine, we invite you to join the ASP and receive 4 issues a year. ...

... H.I.T.M.A.N. is a program that I have written to analyze transient host galaxies and obtain charateristics and properties of them. ... It determines physical, photometric, and cosmological properties of the host galaxies and can also correlate with transient properties. ... Any routine can be done stand alone instead of the full routine. ... The full details of the program will be described in Tucker et al 09a, and Tucker et al 09b, in prep. ...

... Solar System . ... Milky Way . Stars . ... Blue-white Vega is of course one of the brightest stars in our night sky lying about 25 light years from us in Lyra. ... Also in Lyra is the double star Beta Lyrae (Sheliak). This is in fact a close eclipsing pair of B-class stars about 960 light years from the Sun and was only the second eclipsing binary system to be discovered after Algol. ... Planet of Beta Lyrae (from The New Challenge of the Stars by Patrick Moore & David Hardy 1977) . ...

... S = 2kT / Aeff 1 2 3 4 ) ) ) ) Planck, 2015 545 Planck, 2015 : 1) (1973). ... 1) : , , 2) (, SS433) 3) : 4) 5) 6) , 7) nu_G = w_G/ 2pi = eB/mc / 2pi _|_ || : n = 0.5 ( delta -1) -- ( 72%) [ ] 13 (2.3 ) C + S - , nu - , alpha - ( ) S ~ nu alpha : y=A y=A y=A y=A y = : 1) 2) 3) 4) alpha - 0.5 alpha alpha a 0 - , lpha 0 - , - 0.5 - , - 1.0 - + Bx ( B = alpha ) 2 + Bx + Cx x + Bx + Ce -x + Bx + Ce log S, x = log nu 1) alpha =1/3 - F(x) 2) 3) -, 4) (gamma = 1 -- 2 ...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Galaxies . ... Window on the Universe . ... Gamma-Ray Bursts . ... This artistтАЩs impression shows two galaxies in the early Universe. ... As the light from the burst passes through the two galaxies €аon the way to Earth (outside the frame to the right) some colours are absorbed by the cool gas in the galaxies, leaving characteristic dark lines in the spectrum. ... Early Universe : Cosmology : Phenomenon : Gamma Ray Burst . ...

... 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)...

... CERGA, Grasse, France We give an analytical solution of the Lagrange planetary equations expressed in a set of non singular elements for eccentricity: the semi­major axis a, the inclination i, the ascending node \Omega\Gamma – = !+ ... where e denotes the eccentricity. ... More precisely, the first part of the differential system verified by C and S corresponds to a harmonic oscillator: our method takes into account, in a first step, long period variations of 4 elements: C, \Omega\Gamma S, and –. ...

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. ...

... Submitted by Al Takeda on 11/17/2010 13:41:41 . Sadr region in Cygnus . ... Even though the transparency was poor, I initiated a short imaging run of the Gamma Cygni area. Hydrogen-alpha filter (5nm) Total= 18 minutes, 6 minute unbinned sub frames. Takahashi E-180, SBIG STL6303E CCD camera, ATMoB Clubhouse.11 September 2010. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Exploring the Extreme Universe with the Fermi Gamma-ray Space Telescope? by David Thompson . ... Lecture Series 2010-2011 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...