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Topic: Pegasus Dwarf Spheroidal


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In the News (Thu 31 Dec 09)

  
  Pegasus Dwarf Spheroidal Galaxy - Wikipedia, the free encyclopedia
The Pegasus Dwarf Spheroidal (also known as Pegasus dSph, Pegasus II, Andromeda VI, or KKH 99) is a dwarf spheroidal galaxy and a companion of the Andromeda Galaxy in the Local Group.
Pegasus Dwarf Spheroidal is a galaxy with mainly metal poor stellar populations.
Pegasus Dwarf Spheroidal was discovered in 1999 by various authors on the Second Palomar Sky Survey (POSS-II) films.
en.wikipedia.org /wiki/Pegasus_Dwarf_Spheroidal   (147 words)

  
 Pegasus - Encyclopedia Glossary Meaning Explanation Pegasus   (Site not responding. Last check: 2007-11-06)
In Greek mythology, Pegasus, or Pegasos was a winged horse that was the foal of Poseidon, in his role as horse-god and the Gorgon Medusa.
Pegasus aided the hero Bellerophon, who is a double in some way for Perseus, in his fight against both the Chimera and the Amazons.
Pegasus was eventually turned into a constellation, but a single feather fell to the earth near the city of Tarsus (hence its name).
www.encyclopedia-glossary.com /en/Pegasus.html   (338 words)

  
 Irregular Galaxy Pegasus Dwarf   (Site not responding. Last check: 2007-11-06)
The Pegasus Dwarf Irregular Galaxy (also known as UGC 12613, DDO 216, A2304, Peg DIG, or the Pegasus Dwarf) is an irregular galaxy and a dwarf galaxy in the Pegasus constellation.
The Pegasus Dwarf is a companion of the Andromeda Galaxy in the Local Group.
The Pegasus Dwarf is a galaxy with mainly metal poor stellar populations.
www.worldhistory.com /wiki/I/Irregular-Galaxy-Pegasus-Dwarf.htm   (224 words)

  
 Pegasus Dwarf
A dwarf irregular galaxy, companion of the Andromeda Galaxy in the Local Group, most commonly abbreviated in the literature as DDO 216.
Pegasus Dwarf or Pegasus Dwarf Irregular is a galaxy with mainly metal poor stellar populations.
Pegasus Dwarf Spheroidal was discovered in the 1950s, but it was until Tully & Fischer (1975) to become know that this galaxy is part of the Local Group.
www.brainyencyclopedia.com /encyclopedia/p/pe/pegasus_dwarf.html   (174 words)

  
 [No title]
Fuku Pegasus' uniform consists of a long, sleeve-less shirt and loose white pants; the shirt is pale blue with a yellow pegasus detailed over the left breast, and belted a cloth-of-silver sash.
Explanation Pegasus, in Greek mythology, was the winged horse that sprang from Medusa's blood after the saw slain by Perseus.
The Pegasus dwarf spheroidal (Peg dSpH) is part of the local group of galaxies, likely a satellite companion of the Andromeda (M31) galaxy.
www.talosianfields.org /smyth/roanoke/r/pegasus2.txt   (2376 words)

  
 M31 Dwarf Spheroidal Variable Star Surveys
Various variable star surveys of the Galactic dwarf spheroidals have shown that the RR Lyrae populations, while similar to those found in Galactic globular clusters, have some different mean properties.
It is the goal of this study to survey the M31 dwarf spheroidal companions in order to analyze the underlying stellar populations of those galaxies and to see how they compare with what we know of the Galactic dwarf spheroidals and globular clusters.
The M31 dwarf spheroidal companions, And I, II, III, and VI were all observed by the Hubble Space Telescope in order to obtain deep enough photometry to examine the horizontal branch.
www.noao.edu /noao/staff/pritzl/M31dwarfs.html   (1014 words)

  
 Stargate Atlantis - Iridis Encyclopedia   (Site not responding. Last check: 2007-11-06)
The Wraith follow a cyclical feeding pattern: they lay in a dormant/hibernation stage for many years or generations, then sweep through the Pegasus galaxy to "cull their human herd" then stop when there are just enough surviving humans to maintain a breeding population for the next culling cycle.
Atlantis in this series is located in the "Pegasus galaxy", which is being referred as a "dwarf galaxy in the Local Group".
However, as there exist two dwarf galaxies with in the Pegasus constellation, the Pegasus Dwarf (also called Pegasus Dwarf Irregular) and Pegasus Dwarf Spheroidal, it is not clear which galaxy is meant.
www.iridis.com /Stargate_Atlantis   (1642 words)

  
 Keck Imaging of Two New M31 dSph Companions
Eva Grebel, a Hubble postdoctoral fellow, and Raja Guhathakurta, an associate professor of astronomy and astrophysics, confirmed earlier suspicions that the newly discovered galaxies are companions of the Andromeda spiral galaxy.
Independently, an American group based at Kitt Peak National Observatory in Arizona found two dwarf galaxies in the same region, which they named Andromeda V (And V) and Andromeda VI (And VI) due to their proximity to the Andromeda galaxy.
This, plus the shapes of the galaxies, led to their classification as dwarf spheroidal galaxies, said Grebel, who is now at the University of Washington in Seattle.
www.ucolick.org /~raja/pressrel.html   (1043 words)

  
 UC Santa Cruz: New Dwarf Galaxies
Dwarf galaxies are thought to serve as building blocks from which larger galaxies are assembled.
The researchers classified the two galaxies as dwarf spheroidal galaxies, the dimmest and least massive type of galaxy known.
"There are basically two types of dwarf galaxies: The irregular type tends to contain a lot of gas and usually shows ongoing star formation, whereas the spheroidal type tends to be gas-poor, lower in mass and luminosity, and quiescent," Grebel said.
press.ucsc.edu /archive/98-99/01-99/dwarf.htm   (802 words)

  
 GK Workshop - J.S. Gallagher   (Site not responding. Last check: 2007-11-06)
Morphological distinctions between dwarf and giant galaxies are largely associated with the low central densities of luminous matter in dwarfs, and we investigate the astrophysics of this signature of dwarfs.
Dwarf galaxies are often easily distinguished from giants on the basis of their optical appearances, a regularity that indicates dwarfs must systematically differ from giants.
The spheroidal dwarfs, the dSph and dE galaxies, form a single structural family (Kormendy 1987) and are one of the most regular structural classes of galaxies.
www.astro.uni-bonn.de /~webgk/ws98/jsg_r.html   (5359 words)

  
 local group   (Site not responding. Last check: 2007-11-06)
Pegasus Dwarf or Pegasus Dwarf Irregular (DDO 216) - type Irr in Pegasus
Pegasus Dwarf Spheroidal Galaxy (Andromeda VI) - type dSph in Pegasus
Argo Dwarf - Irregular Galaxy (Irr) in Carina
www.yourencyclopedia.net /local_group.html   (642 words)

  
 Steinn Sigurdsson - Astro 475(W) 39
Each of the main spirals has a clump of dwarf galaxies in close association with it, in addition there are a number of free-floating dwarf galaxies out in intergalactic space, mostly clustered.
A number of recent discoveries of faint dward spheroidal galaxies within the local group suggests that the census of local group galaxies may be incomplete.
Dwarf ellipticals may not be the low luminosity end of the elliptical sequence, but rather the gas poor compact side of the spheroidal sequence.
www.astro.psu.edu /users/steinn/Astro475/sem34.html   (931 words)

  
 Universal Structure   (Site not responding. Last check: 2007-11-06)
The Pegasus Dwarf Spheroidal galaxy many voids and acoustic resonance structures are discernable.
Without precise measurements it is difficult to determine the exact size of the voids, but they appear to be approximately 700,000, 500,000, 300,000 and about 100,000 light years in diameter and are sub-harmonics of the intergalactic voids.
The similarity to the structure of the Pegasus Galaxy Cluster is significant in indicating that the resonant patterns of the clusters are replicated in the individual constituent members.
www.temporaltheory.com /Before_the_big_bang/before_the_big_bang.htm   (4342 words)

  
 Pegasus (dwarf galaxy) - Encyclopedia Glossary Meaning Explanation Pegasus (dwarf galaxy)   (Site not responding. Last check: 2007-11-06)
Pegasus (dwarf galaxy) - Encyclopedia Glossary Meaning Explanation Pegasus (dwarf galaxy).
Here you will find more informations about Pegasus (dwarf galaxy).
There is more than one dwarf galaxy in Pegasus (constellation)
www.encyclopedia-glossary.com /en/Pegasus-dwarf-galaxy.html   (102 words)

  
 Articles - Dwarf galaxy   (Site not responding. Last check: 2007-11-06)
A dwarf galaxy is a small galaxy composed of up to several billion stars, a small number compared to our own Milky Way's 200-400 billion stars.
There are many dwarf galaxies in the Local Group: these small galaxies frequently orbit around larger galaxies, such as the Milky Way, the Andromeda Galaxy and the Triangulum Galaxy.
Elliptical galaxy — dwarf elliptical galaxy (dE) and its subtype dwarf spheroidal galaxy (dSph)
www.outship.com /articles/Dwarf_galaxy   (134 words)

  
 Pegasus dSph: Little Galaxy of the Local Group
Explanation: The Pegasus dwarf spheroidal galaxy (Peg dSph) is a small, newly recognized member of the Local Group of Galaxies.
, the Pegasus dwarf galaxy is almost hidden in the glare of relatively bright foreground stars in our own Milkyway.
Excitement over discoveries of Peg dSph and other nearby dwarf galaxies reflects the fact that little galaxies may loom large in the process of galaxy evolution.
www.astronet.ru:8100 /db/xware/msg/1163241   (173 words)

  
 APOD Index - Galaxies: Local Group
Deemed the "Sagittarius Dwarf", this small galaxy went unnoticed until its discovery in 1994 by R.
The reason the Sagittarius Dwarf hadn't been discovered earlier is because it is so dim, it is so spread out over the sky, and there are so many Milky Way stars in front of it.
The distance to the Sagittarius Dwarf was recently measured to be about one third of the distance to the LMC.
antwrp.gsfc.nasa.gov /apod/local_group.html   (710 words)

  
 Andromeda VI
The new dwarf galaxy And VI was discovered in the Local Group by NOAO astronomers T.E. Armandroff, J.E. Davies, and G.H. Jacoby, together with And V (Armandroff et.al.
Dwarf spheroidal And VI is probably a satellite of the Andromeda Galaxy M31.
Most individual stars resolved in the newly discovered dwarf galaxy are slightly red in color, but a few very evolved stars are extremely red.
www.seds.org /~spider/spider/LG/and6.html   (372 words)

  
 Pegasus Galaxy - Definition, explanation
Pegasus Galaxy, or Pegasus Dwarf Galaxy, or Pegasus Dwarf, can mean several things:
Pegasus Dwarf Irregular Galaxy, or Peg DIG, a member of the Local Group of galaxies
Pegasus Dwarf Spheroidal Galaxy, or Pegasus II, a satellite of the Andromeda Galaxy
www.calsky.com /lexikon/en/txt/p/pe/pegasus_galaxy_1.php   (163 words)

  
 APOD: January 22, 1999 - Pegasus dSph: Little Galaxy of the Local Group   (Site not responding. Last check: 2007-11-06)
Explanation: The Pegasus dwarf spheroidal galaxy (Peg dSph) is a
Local Group's dominant player, the large spiral Andromeda (M31), the Pegasus dwarf galaxy is
nearby dwarf galaxies reflects the fact that little galaxies may loom large in the
antwrp.gsfc.nasa.gov /apod/ap990122.html   (124 words)

  
 Articles - Local Group   (Site not responding. Last check: 2007-11-06)
The Milky Way's satellite system consists of Sag DEG, Large Magellanic Cloud, Small Magellanic Cloud, Canis Major Dwarf, Ursa Minor Dwarf, Draco Dwarf, Carina Dwarf, Sextans Dwarf, Sculptor Dwarf, Fornax Dwarf, Leo I, Leo II and Tucana Dwarf.
Capricornus Dwarf (Palomar 12) is a Milky Way Globular Cluster formerly classified as a Dwarf Spheroidal Galaxy in Capricornus
Original Ursa Major Dwarf (Palomar 4) is a Milky Way Globular Cluster formerly classified as a Dwarf Spheroidal Galaxy in Ursa Major
www.outship.com /articles/Local_Group   (648 words)

  
 UCO Press Releases: 01-11-99
SANTA CRUZ, CA: UCSC astronomers have characterized two nearby dwarf galaxies discovered in 1998, identifying them as members of the Local Group of galaxies that includes the Milky Way.
The researchers also characterized the ages and chemical compositions of the stars in the two dwarf galaxies.
This, plus the shapes of the galaxies, led to their classification as dwarf spheroidal galaxies, said Grebel.
www.ucolick.org /news/1999/99-01-11.html   (977 words)

  
 GK Workshop - A. Aparicio   (Site not responding. Last check: 2007-11-06)
Dwarf irregular (dIr) galaxies show evidences of an important old and intermediate-age stellar population.
Dwarf galaxies usually considered to be in a dIr to dwarf spheroidal (dSph) transition phase and lacking conspicuous H
This suggests that a bias could exist in the classification of dwarfs as dIr in the sense that only galaxies in a very active star formation phase are likely to be considered as dIrs.
www.astro.uni-bonn.de /~webgk/ws98/aparicio_t.html   (1606 words)

  
 Andromeda VII   (Site not responding. Last check: 2007-11-06)
Dwarf Spheroidal Galaxy Andromeda VII (Cassiopeia Dwarf Spheroidal Galaxy), type dSph, in Cassiopeia
Andromeda VII was discovered in 1998 by a team of Russion and Ukrainian astronomers and originally named Cassiopeia Dwarf Spheroidal Galaxy (Cas dSph), together with Andromeda VI (the Pegasus Dwarf Spheroidal Galaxy).
And VII is another dwarf companion of the Andromeda Galaxy M31.
www.seds.org /~spider/spider/LG/and7.html   (329 words)

  
 Our Milky Way Galaxy and its companions
This dwarf galaxy remained undiscovered -- despite its enormous extent on the sky of 5 x 10 degrees -- because it can only be detected as a slight enhancement of the density of stars on the sky; the actual surface brightness of this galaxy is very low.
A second discovery was announced during the same press conference of a dwarf irregular galaxy in the constellation Argo.
This Argo Dwarf, however, contains both a young and an old stellar population, and it is now known to contain quite a lot of neutral hydrogen gas as well.
www.public.asu.edu /~rjansen/localgroup/localgroup.html   (2638 words)

  
 Cassiopeia Dwarf (Cas dSph)
A recently-discovered dwarf spheroidal galaxy that is also a satellite galaxy of the Andromeda Galaxy (M31), and hence also a member of the Local Group.
The Cassiopaeia Dwarf was found in 1998 in the constellation Cassiopeia, together with another small satellite of M31, the Pegasus Dwarf (Peg dSph), by a team of astronomers in Russia and the Ukraine.
At a distance of 2.6 million light-years from the Sun, Cas dSph and Peg dSph are farther from Andromeda than its other known companion galaxies, yet still appear bound to it by gravity.
www.daviddarling.info /encyclopedia/C/Cassiopeia_Dwarf.html   (184 words)

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