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1041. http://zebu.uoregon.edu/messier/m82.txt
M82 has an angular size of 9 x 4 arcminutes and has very high surface brightness. ... The high surface brightness is due to the very high star formation rate currently operative in M82. The interaction of this star formation pattern and the peculiar distribution of dust in M82 gives rise to its peculiar appearance and its misnomer label as an "exploding galaxy". The high star formation fuels vigorous hydrodynamic winds in the galaxy which can eject material to distances beyond the galaxy. ...
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Ссылки http://zebu.uoregon.edu/messier/m82.txt -- 1.5 Кб -- 22.04.1994
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1042. http://zebu.uoregon.edu/messier/m51.txt
M51 is another very High Surface Brightness galaxy. It is interacting with a small companion galaxy. That interaction serves to redistribute and compress the gas which facilitates star formation. In addition, the symmetry of tidal encounters often induces spiral structure in the more massive of the two galaxies. This spiral structure is clearly seen in this blue image. M51 is the host galaxy for SN 1994 I.
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Ссылки http://zebu.uoregon.edu/messier/m51.txt -- 1.4 Кб -- 22.04.1994
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1043. http://zebu.uoregon.edu/text/keel.txt
Bill Kell is a professor of Astronomy at the University of Alabama. He received his Ph. D. from the University of Santa Cruz. He specializes in the study of interacting galaxies and the effects of the environment on galaxy evolution.
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Ссылки http://zebu.uoregon.edu/text/keel.txt -- 1.2 Кб -- 12.04.1994
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1044. http://zebu.uoregon.edu/messier/m31.txt
M31, also known as the Andromeda Galaxy, is the nearest large galaxy to our own. ... M31 is about 4 times as massive as the Milky Way. It has a substantially large population of globular clusters (about 600) than does the Milky Way. The overall star formation rate in M31 is remarkablely low compared to other spiral galaxies. M31 and the Milky Way are bound together (maybe?) in a configuration known as the Local Group of Galaxies. ... This image is another unique image. ...
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Ссылки http://zebu.uoregon.edu/messier/m31.txt -- 2.0 Кб -- 25.03.1994
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1045. http://zebu.uoregon.edu/messier/m1.txt
M1 is also known as the Crab Nebula. It is a remant of a supernova that occured in 1054 AD. The central star is actually a rotating neutron star and is called a pulsar. This exposure was taken through a narrow band H-alpha filter to make the filamentary structure stand out somewhat.
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Ссылки http://zebu.uoregon.edu/messier/m1.txt -- 1.3 Кб -- 25.03.1994
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1046. http://zebu.uoregon.edu/text/lsb.txt
Galaxies are diffuse images which must be detected against a background of finite brightness with noise. Those galaxies which have the highest contrast with respect to this background are the most easily dectect. Low surface brightness galaxies are ones in which the contrast with respect to the background sky brightness is low, as such they are difficult to discover and therefore are easily missed. See some representative picture of these objects in the Galaxy Gallery.
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Ссылки http://zebu.uoregon.edu/text/lsb.txt -- 1.5 Кб -- 25.03.1994
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1047. http://zebu.uoregon.edu/text/cruz.txt
Well what can you say about a bunch of Banana Slugs anyway?
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Ссылки http://zebu.uoregon.edu/text/cruz.txt -- 1.1 Кб -- 25.03.1994
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1048. http://zebu.uoregon.edu/text/hern.txt
Dr. Lars Hernquist is one of the leading researchers in the world on N-body simulations and the use of TREECODE for effective hydrodynamical modelling of galaxies. He has published extensively on the subject. He is a professor in the Astronomy Department (Lick Observatory) at the Univeristy of California, Santa Cruz.
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Ссылки http://zebu.uoregon.edu/text/hern.txt -- 1.3 Кб -- 25.03.1994
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1049. http://zebu.uoregon.edu/text/hos.txt
Chris Mihos was born and breed in the DC area and thus is an ardent Redskins fan. ... For more reading we suggest the following: A Numerical Study of Star Formation in Interacting Disk Galaxies Astrophysical Journal 1991 Vol 377 page 72 Models of Star Formation in Interacting and Merging Disk Galaxies Astrophysical Journal 1992 Vol 400 page 153 Modelling the Spatial Distribution of Star Formation in Interacting Galaxies Astrophysical Journal 1993 Vol 418 page 82 (this one is the coolest) ...
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Ссылки http://zebu.uoregon.edu/text/hos.txt -- 2.1 Кб -- 25.03.1994
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1050. http://zebu.uoregon.edu/text/warn.txt
This mpeg movie is 1.2 Megs and the audio narration file is 0.5 Megs. If you transfer both you should start the movie when you hear the sound. Obviously you need about 1.8 Megs of free temporary space to do this.
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Ссылки http://zebu.uoregon.edu/text/warn.txt -- 1.2 Кб -- 21.03.1994
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1051. http://zebu.uoregon.edu/text/tax.txt
In the rest of the World, gasoline is taxed at very high amounts. In Europe, the price of gasoline is about 3 times that in the US.
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Ссылки http://zebu.uoregon.edu/text/tax.txt -- 1.1 Кб -- 03.03.1994
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1052. http://zebu.uoregon.edu/text/ex.txt
In March 1989 a Supertanker owned by Exxon ran a ground in the early morning hours in Prince William Sound, Alaska. Approximately 15 million gallons of oil were deposited in a pristine natural area and cleanup was both slow and difficult.
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Ссылки http://zebu.uoregon.edu/text/ex.txt -- 1.2 Кб -- 03.03.1994
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1053. http://zebu.uoregon.edu/text/op.txt
Besides the US, the principle oil producing countries of the World are Venezuala, Mexico, Saudia Arabia, Iraq, Kuwait and Bahrain.
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Ссылки http://zebu.uoregon.edu/text/op.txt -- 1.1 Кб -- 03.03.1994
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1054. http://zebu.uoregon.edu/text/wells.txt
The United States is located on a relatively mature oil field. Therefore the yield per oil well is quite low. Even the oil fields of alaska are not all that rich. As a result, that resource, which was tapped in the early 70's had only about a 30 year lifetime. In contrast, Saudi Arabia sits on a very young, rich deposit of oil. Their production, which is about equal to that of the US, is based on only 860 wells! Hence, each well is worth several billion dollars.
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Ссылки http://zebu.uoregon.edu/text/wells.txt -- 1.5 Кб -- 03.03.1994
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1055. http://zebu.uoregon.edu/text/vir.txt
Virialization means that the cluster has come into dynamical equilibrium and any substructure has now been erased. The velocity distribution of galaxies should then be thermal and provide a good measure of the depth of the cluster potential. Dynamical masses can then be estimated from the Virial Theorem. Most clusters of galaxies are not yet fully virialized and exhibit some degree of substructure.
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Ссылки http://zebu.uoregon.edu/text/vir.txt -- 1.4 Кб -- 18.02.1994
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1056. http://zebu.uoregon.edu/text/dust.txt
Dust is composed largely of graphite. Grain size varies. More later.
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Ссылки http://zebu.uoregon.edu/text/dust.txt -- 1.1 Кб -- 11.02.1994
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1057. http://zebu.uoregon.edu/text/scatter.txt
Scattering is the process whereby the direction of motion of a photon is randomly changed. There is no energy loss of the photon in this process. This kind of scattering is strongly wavelength dependent as the scattering efficiency goes as Wavelength to the -4 power.
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Ссылки http://zebu.uoregon.edu/text/scatter.txt -- 1.3 Кб -- 11.02.1994
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1058. http://zebu.uoregon.edu/text/gas.txt
The gas in the ISM is generally in the form of hydrogen.
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Ссылки http://zebu.uoregon.edu/text/gas.txt -- 1.1 Кб -- 11.02.1994
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