M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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Next: Critical Frequencies and Gravitational Previous: Extragalactic Gravitational Wave Background . The number of binaries per frequency decade per solid angle from a separate stellar system (galaxy or cluster of galaxies) is . ... For example, for the Andromeda galaxy M31 ( rad, ) one gets . ... If the angular size of the galaxy is less than the angular resolution of the detector, the critical frequency is independent of the angular resolution, . ...

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• Gravitational wave background from nearby galaxies
• Galactic Gravitational Wave Background
• A Gravitational Wave Map of Nearby Galaxies

Prospects for gravitational wave detection with forthcoming Pulsar Timing Arrays Alberto Sesana CGWP at PennState Alberto Vecchio Marta Volonteri Carlo Nicola Colacino University of Birmingham University of Michigan RMKI Budapest STScI 3/30/2009 OUTLINE > PTAs and MBHBs > GWs and PTAs: unresolved background > GWs and PTAs: resolvable sources HIERARCHICAL GALAXY FORMATION.. ... Cumulative number of sources.. ...

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• Starburst and Galaxy evolution
• HST this week: 066
• Andrew J. Fox Research Interests

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

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. Back to A.Zasov's homepage.

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... The black-hole powered core of the Circinus galaxy. ... Andy Bunker (AAO): "Galaxy evolution at the earliest accessible times" . ... Mark Lacy (CalTech): "High redshift radio galaxies and SMBH evolution" . Roger Windhorst (Arizona): "When during galaxy assembly did AGN growth take place?" ... Role of mergers and blackholes in galaxy evolution . ... Arman Khalatyan (Marseille): "The role of mergers in galaxy evolution" . ... Astrophysical Sources of Gravitational Waves . ...

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• A new twist to polar rings
• The Circinus Galaxy
• HI Absorption as a Tracer of Nuclear Rings in Galaxies

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Seyfert galaxies
• Measurement of the dark halo shape in polar ring galaxies
• Galaxy sector, archive 1998

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

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An image of the grand design of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms. ... Hubble has the ability to resolve individual stars in other galaxies and measure accurately the light from very faint stars. This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100's spiral arms. ... 617) 495-7062 . Fax: (617) 495-7356 . ...

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• The Chandra Multiwavelength Project (ChaMP)
• The AstroStat Slog host galaxy
• The AstroStat Slog Blog Archive [ArXiv] GRB host galaxies, Aug. 10, 2007

Next: The stage and Up: The ESO Red Sky Previous: Artefacts . Fig. 3 shows the distribution of stars. The most striking feature is the rapid steepening of the density gradient towards the Milky Way region at the right and left hand edges of the total field, apparent from the dramatic change in colour in this false colour presentation. Noticable changes in star density across even short distances are indicated by colour changes within individual plates. ... Fig. ...

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• ESO - Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies
• ESO - Thesis Topic: The physics of a nearby galaxy sample (HRS): gas, dust and
• ESO - Discs in Galaxies

... Around the center of the red galaxy image in the above photograph lie four blue "smudges." ... Shapley 1: An Annular Planetary Nebula . ... At that time, the center condenses into a white dwarf while the outer atmospheric layers are expelled into space and appear as a planetary nebula. ... After a Sun-like star can no longer support fusion in its core, the center condenses into a white dwarf while the outer atmospheric layers are expelled into space and appear as a planetary nebula. ...

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... COSMOLOGY AND HIGH REDSHIFT . AGN . ... This email address is being protected from spambots. You need JavaScript enabled to view it. ...

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• Dust in Spiral Galaxies
• STScI- PRC99-10: Hubble's Infrared Galaxy Gallery
• APOD: July 10, 1998 - Interacting Galaxies

This animation shows a galaxy cluster with two mass concentrations (the pink shading indicates the projected mass density) lensing a background field of faint blue galaxies. ... Inside the Einstein ring radius one has radial arcs, and right in the center of the cluster there are demagnified images. The highest magnifications occur at the Einstein ring radius, giving the large tangential arcs. ... Abell 2218 and CL2244-02 are clusters with tangential arcs. ... Tutorial : Part 1 | Part 2 | ...

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• Cosmology FAQ: Why haven't the CMBR photons outrun the galaxies in the Big...
• Emission-line galaxies
• Optically detected galaxies with POSSI-E in the "zone of avoidance. I-V

... Are HVCs a common feature of star forming galaxies? ... Consider the typical properties of the smallest HVCs (compact HVCs) found in HIPASS: . Distance . HI Mass . ... At 5 kpc . meager objects ~116 solar masses . ... 1.15 x 10 4 solar masses . ... Putman et al. (2003) found none to 10 7 solar masses. 2% of Sculptor to 3 x 10 6 solar masses by de Blok et al. (2001) found none. ... High velocity gas around other galaxies can be identified from maps and dynamics: . ... 2003) . ...

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• OLD ANALYZ instruction sequences HI in galaxies
• The Dark Side of the Galaxy: a Skiagraphic Panorama of Cold H I
• Slide 2

... Russian KOI8 . ... Radio galaxies and cosmology [in Russian]) . ... The book is devoted to investigations of powerful radio galaxies in the different wavelength ranges. ... The history of study for radio galaxies is given and the outlook on radio galaxy exploring is considered. ... The cosmological tests to check the Universe evolution parameters constructed on the observational data of radio galaxies are considered in details. ... List of detected misprints (in Russian). ...

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• Radio galaxies
• Group for study of galaxies and cosmology, history
• astro-ph authors/title/abstract search for 'galaxy merging' all years

... 50 Weirdest Objects . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... When a gravitational lens magnifies a background galaxy, why don't we see the object doing the lensing, as we would if looking through an optical lens? ... When the gravity of a foreground galaxy distorts and magnifies light from a background galaxy, the result is either a single Einstein ring or multiple images of the object. Get instant access to subscriber content on Astronomy.com! ...

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• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,
• cosmic microwave background | Astronomy.com
• Could gas giants be considered stars that failed to ignite? | Astronomy.com

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The number distribution is shown in the middle panel. The right panel illustrates the distribution of chirp mass due to different DWD types, normalized by the total number (2.76†Ч108) of DWDs in the Galaxy (bin size M = 0.001M ? ... The frequency spectra of DWD strain amplitude and number distribution are presented as a function of galactic component, DWD type, formation channel, and metallicity. тИТ4.5. ...

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• Homepage of Gavin Ramsay
• Strong Gravity in the Vicinity of Supermassive Black Holes - by Eamon Scullion,
• JLE Dreyer

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . Milky Way . Stars . ... Other Galaxies . ... Barred spiral galaxy NGC 6744 is located in a constellation of the southern hemisphereтАЩs sky, called Pavo (Latin for peacock). At a distance from our Solar System of about 30 million light years, NGC 6744 is not only one of the closest spiral galaxies but is thought to be one of the visible galaxies most like our own Milky Way. Is it our cosmic doppelganger? ...

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• ESO images galaxies pulled apart | Astronotes
• WLM Galaxy: a Cosmic Living Fossil | Astronotes
• Cannibal galaxy ESO 306-17 eats its neighbours! | Astronotes

... December 20, 1995 . A Galaxy Gravitational Lens . Credit: NASA , HST , K. Ratnatunga. ... Around the center of the red galaxy image in the above photograph lie four blue "smudges." Each smudge is actually a different image of the same background quasar . ... Consequently, the huge mass of the galaxy is able to pull separate images of the quasar around it - an effect called gravitational lensing . Hence we see a gravitational mirage! ... About APOD | ... NASA Technical Rep.: ...

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• APOD Index - Galaxies: Clusters of Galaxies
• APOD: 2009 September 21 - Abell 370: Galaxy Cluster Gravitational Lens
• APOD: 2011 October 17 - MACS 1206: A Galaxy Cluster Gravitational Lens

... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...

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• Gradients in Disk Galaxies
• Star Formation History
• Dust Expelling