... The Fornax Cluster of Galaxies . ... Blasted out by energetic massive star formation the bullets, relatively dense, hot gas clouds about ten times the size of Pluto's orbit, are blue in the false color image. ... Drifting near bright star Eta Geminorum, at the foot of a celestial twin, the Jellyfish Nebula is seen dangling tentacles from the bright arcing ridge of emission left of center. ... Open Star Clusters M35 and NGC 2158 . ... Bright blue stars frequently distinguish younger open clusters. ...

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• NGC 4449: Close up of a Small Galaxy

... Our Galaxy . ... Stars . ... Image credit: ESO, Acknowledgement: VST/Omegacam Local Group Survey) . First observed in 1909, the WLM galaxy is part of the Local Group, about 10 million light years (3.1 Mpc) across, this is the set of more than 35 galaxies which includes our own Milky Way. ... I compared this little galaxy to a living fossil because looking at it gives us an insight into a past era in the UniverseтАЩs history. ... Distances and metallicities for 17 Local Group galaxies? . ...

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• ESO reveals end of cosmic Dark ages | Astronotes
• NGC 6302: A vast cosmic butterfly | Astronotes
• Our Galaxy | Astronotes - Part 4

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2014 February 17 . The Cosmic Web of the Tarantula Nebula . ... Were it placed at the distance of Milky Way's Orion Nebula , only 1,500 light-years distant and the nearest stellar nursery to Earth, it would appear to cover about 30 degrees (60 full moons ) on the sky. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2005 April 27 - The Hercules Cluster of Galaxies
• APOD: 2010 April 13 - Unusual Spiral Galaxy M66 from Hubble
• APOD: 2011 January 11 - The Cosmic Web of the Tarantula Nebula

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Explore how our universe and all the objects it contains form and evolve in Cosmic Origins a must-have app brought to you by the editors of Astronomy , the world s best-selling astronomy magazine. ... Discover the basic galaxy types, how black holes affect the universe and how galaxies and their larger conglomerates т?? galaxy clusters т?? form and evolve through cosmic time. ...

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• How close could you be to witness Arizona's meteor crater form and still live
• Hubble spots galaxies in close encounter | Astronomy.com
• What are carbon stars? How do they form? | Astronomy.com

Physical conditions of the interstellar medium in galaxies are closely linked to the ambient radiation field and the heating of dust grains. ... The KINGFISH profiles are well suited to examining trends of dust temperature Tdust and нІ because they span a factor of ~200 in the ISRF intensity heating the bulk of the dust mass, Umin. Results from fitting the profile SEDs suggest that, on average, Tdust, dust optical depth о„dust, and Umin decrease with radius. ...

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• Local astronomers find gigantic halo around neighboring galaxy - By MEGHA
• Young, Ultraviolet-bright Stars Dominate Dust Heating in Star-forming Galaxies
• GRB 990123Page

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

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• ASP: Beacons in the Gloom
• ASP: Monster Comet Promises Big Show
• ASP: Astronomy Behind the Headlines

... April 2, 1999 . Stars of NGC 206 . ... Explanation: Nestled within the dusty arms of the large spiral galaxy Andromeda (M31), the star cluster NGC 206 is one of the largest star forming regions known in our local group of galaxies. The beautiful bright blue stars of NGC 206 betray its youth - but close, systematic studies of variable stars in and around NGC 206 will also accurately reveal its distance. ... About APOD > . ...

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• A Bright Ring Of Star Birth Around A Galaxy's Core (PR98-21)
• APOD: April 12, 1999 - Nearby Spiral Galaxy NGC 4945
• APOD: 2000 April 24 - Reflection Nebula M78

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• The Galaxy Gallery: Messier Objects
• Dark Matter in the Universe
• Astronomy HyperText Book: Interstellar Medium

... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

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• AGES - the Arecibo Galaxy Environment Survey
• Arecibo Galaxy Environment Survey (AGES)

Talk . Date of Talk . ... The Cosmic Evolution of Neutral Atomic Hydrogen Gas" . ... Power Point PDF . ... University of Sydney talk . ... Measuring the Gas in Galaxies in the Distant Past" . ... Talk at 'Galaxy Metabolism: Galaxy Evolution Near and Far' conference . ... Neutral Hydrogen Gas in Galaxies at Moderate Redshifts: Current and Future Observations" . ... Neutral Hydrogen Gas in Abell 370, a Galaxy Cluster at z = 0.37" . ... Neutral Hydrogen Gas in Star Forming Galaxies at z=0.24" . ...

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• CHIAKI's Research
• The High-Z SN Search Description
• CHIAKI's Presentations

... The biggest bursts of star birth in the early Universe took place in galaxies that contained lots and lots of cosmic dust. ... To pick these distant galaxies out from their murky surroundings, astronomers have to use telescopes that observe a special type of light that can penetrate the thick fog, the ALMA telescope is one of them. ... The length of the wave is called the wavelength . ... Radio waves, visible light (the light our eyes can see) and microwaves are the different types of light waves. ...

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• Close-up images of Some of the Most Distant Galaxies Known | ESO
• Gravitational lensing of distant star-forming galaxies (schematic) | ESO
• Gravitational lensing of distant star-forming galaxies (schematic)

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

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• Solar Energetic Particles

Next: Stealth Comets Up: W.M. Napier Previous: W.M. Napier Contents . ... If material ejected from the Earth contains microorganisms and spores, the question arises whether life may be carried from planet to planet within the solar system. ... However, the solar system is tiny on the scale of the Galaxy, and it has generally been thought that the transfer of life between stars is impossible -- the microorganisms would be destroyed by cosmic rays, ultraviolet light and so on. ...

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• Black Holes
• Armagh Observatory
• Terry Mosely's Bulletins

The divisity of galaxies. The galaxies are the giant (to hundred of billions of stars) star systems, where the stars are connected by gravitation laws with each other. ... Ther galaxy NGC 3031 . ... Each spiral galaxy has a core a flat disk where the spiral brancher locate. The stars and interstellar substance of spiral galaxies rotate around the core. ... In normal galaxies, such as our Galaxy, the great brightness of the core is accounted for the high concentration of stars. ...

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• habblephotoe

Postdoctoral researcher, University of Cambridge . ... My research interests are centred around understanding galaxy evolution across cosmic time.б  . ... In the local Universe I use large surveys for gas, metals, and stars, to shed light on the physical processes governing the evolution of galaxies across all cosmic epochs.б  . Dr. Matt Bothwell, Room K29, Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK, +44 (0)1223 33754 msb47 -at- mrao.cam.ac.uk . ...

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• PPEUC Programme - Cosmic Microwave Background Workshop
• Galaxy Evolution Over Five Decades
• Galaxy Evolution: Cosmological evolution of star formation

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

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• GRB follow-up team
• Publicatons
• Fabry-Perot Interferometer: Gallery Old

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

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• Radio galaxies
• Group for study of galaxies and cosmology, history
• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all

. HIPASS Name RA, DEC(J2000) l, b NED ID peak rms mom0 vsys w50 w20 vLG MHI Ref.

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• HIPASS Bright Galaxy Catalog
• ATNF Daily Astronomy Picture
• The 1000 Brightest HIPASS Galaxies

... 2004: . ... An increase in star brightness is followed by a decrease in asphericity and wind velocity to the point where stationary and even accreting fraction of the wind appears in extremely bright objects together with a flowing out fraction. ... Based on an analysis of observations obtained with BTA and on the published data it was found that degree of abnormality of energy distribution in continuum of magnetic chemically peculiar stars increases with an increase of their rotation period. ...

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• Galaxy sector, archive 2014
• RCJ0311+0507
• A unique isolated dwarf spheroidal galaxy KKR25

... 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. ...

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• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System