... arXiv.org . astro-ph . ... We fit the near-infrared to radio spectral energy distributions of 30 luminous and ultra-luminous infrared galaxies with pure starburst models or models that include both starburst and AGN components to determine important physical parameters for this population of objects. In particular we constrain the optical depth towards the luminosity source, the star formation rate, the star formation efficiency and the AGN fraction. ...

ATMoB "Galaxy Observing Award " Guidelines Purpose: To promote observing among the membership of the Amateur Telescope Makers of Boston through participation in the Galaxy Observing Awards program. ... Examples of elliptical galaxies: M49, M59, M60, M87, NGC 4125. Limiting Magnitude Assessment: Spirals: A spiral galaxy consists of a flattened disk, with stars forming a (usually two-armed) spiral structure, and a central concentration of stars known as the bulge. ...

The Virgin. ... This is a double system with a long orbit and a period of 171 year. The maximum distance between them was 6" in 1925 and it will be 0,5" in 2011. The light of the each component is 3,5 of star value. Near the Virgin star r there is an interesting galaxy M 87 (or the radiogalaxy of the Virgin A) aproximetly the 9th star value. ... The most bright quasar (3C 273) lays in the Virgin, but it is able to see this quasar only in a big telescope. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... The circumnuclear GASEOUS disks are often decoupled from the circumnuclear stellar disks and are even stronger inclined to the outer disk planes; in fact, we have found a considerable `population' of inner polar rings. Inner gas polar rings are found as in spiral galaxies with the massive outer gas disks co-planar to the main symmetry planes (e.g. NGC 2841, Sil'chenko et al. 1997, and NGC 7217, Sil'chenko & Afanasiev 2000) as well in many lenticular galaxies (Fig. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Hubble †йpingle 7 galaxies aux fronti†иres de l'Univers . ... L'†йtude des premi†иres galaxies de l'Univers est aussi l'un des objectifs du t†йlescope g†йant europ†йen E-ELT . ... Etat du ciel . ...

... NGC 4631 Whale galaxy (Caldwell 32) - спиральная галактика с перемычкой Кит (Arp 281) в созвездии Гончих Псов (Canes Venatici) .. ... Просмотр полной версии : NGC 4631 Whale galaxy (Caldwell 32) - спиральная галактика с перемычкой Кит (Arp 281) в созвездии Гончих Псов (Canes Venatici) .. ... NGC 4631 Whale galaxy (Caldwell 32) - спиральная галактика с перемычкой Кит (Arp 281) в созвездии Гончие Псы (Canes Venatici (http://www.starlab.ru/showpost.php?p=178940&postcount=721)) .. ...

Clusters of galaxies are the largest gravitationally bounded structures in the Universe dominated by dark matter. We review the observational appearance and physical models of plasma structures in clusters of galaxies. ... The knowledge of the complex dynamical and feedback processes is necessary to understand the energy and matter balance as well as to constrain the role of the non-thermal components of clusters. ...

... The study of the Large-scale structure of the Universe and measurements of the Dark Energy equation of state; The exploration of the growth and cosmological evolution of supermassive Black holes in the Universe. ... In course of the all sky survey SRG will discover about 100 000 galaxy clusters and 3 million AGNs. Galaxy clusters are the largest gravitationally bounded objects in the Universe and are best explored through the study of X-ray emission from the hot intergalactic gas. ... 2016 IKI RAN ...

THE ARGUMENT AGAINST LONG EXTRAGALACTIC DISTANCE SCALE Gaseous discs of S0 -- Sd galaxies appears to be gravitationally stable or close to stability. Dependence of the gravitational stability parameter of gaseous disc $M_g/M_c$ upon the color index $(B-V)^0_T$ which reflects a relative number of young stars, is found. Here $M_g$ is total mass of gas in a galaxy, $M_c$ - mass of gas which corresponds to marginal stability of gaseous disc at distances from center. ...

... Field of research: Extragalactic astronomy. ... NASA Astrophysics Data System (ADS) Abstract Service . ... CADC Home Page . ... CCD Images of Galaxies . ... RUSSIAN LINKS . ... UA Astronomy Personal Home Page - Bill Keel . ... The Shape of the Rotation Curves of Edge-on Galaxies, by A.V.Zasov and A.V.Khoperskov, 2003. ... A Thickness of Stellar Discs, by A.V.Zasov, and D.V.Bizyaev, 2003 . Minimum Velocity Dispersion in Stable Stellar Disks, by A.V.Khoperskov, A.V.Zasov, and N.V.Tyurina, 2003 . ...

... 2003 . ... 2002 . ... 2000 . ... Сегодня: 10 апреля 2016 г. Оператор систем спутниковой связи компания PanAmSat заключила контракт о запуске своего спутника Galaxy 16 с плавучего космодрома "Морской старт" (Sea Launch), который будет установлен в акватории Тихого океана на экваторе в точке с координатой 154 o западно долготы. ... Это будет уже четвертый "морской старт" для спутников компании PanAmSat. ... Спутник Galaxy 16 отправится на орбиту с "Морского старта" . ...