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1001. http://zebu.uoregon.edu/messier/m2.txt
This is an infrared (K-band) image of M2. The effective band wavelength is about 2 microns which is near the peak of the spectral energy distribution for old, cool stars in a globular cluster. The light from the cluster at 2 Microns is dominated by Red Giant Stars. Since the typical ratio of main sequence to giants stars in a globular cluster is 1 to a few hundred, we are seeing, in this photograph, this minority population of very bright stars. Hence the core of the cluster is not burned out in this image.
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Ссылки http://zebu.uoregon.edu/messier/m2.txt -- 1.5 Кб -- 20.10.1994
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1002. http://zebu.uoregon.edu/1996/ph123/images/gaia.ps
Global Feedback Mechanisms Premies: Planet wide BIOTA collectively maintain the planetary atmosphere within limits that are fa vorable to life. (Temp, pH, pressure, O 2 content) GAIA/!BIOTA Example: ffl L fi increases by 2 over Geologic Time ffl Life can only exist in an absolute temperature interval of 1.0--1.2 ffl Development of intelligent life occurs over Geo logical Time ffl Observers can be found only on a planet where something stabilizes the Temperature
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Ссылки http://zebu.uoregon.edu/1996/ph123/images/gaia.ps -- 46.2 Кб -- 05.10.1994
[ Текст ] Ссылки http://zebu.uoregon.edu/1999/ph123/images/gaia.ps -- 46.2 Кб -- 05.10.1994
[ Текст ] Ссылки http://zebu.uoregon.edu/2002/ph123/images/gaia.ps -- 46.2 Кб -- 05.10.1994
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[ Текст ] Ссылки http://zebu.uoregon.edu/1999/ph123/images/gaia.ps -- 46.2 Кб -- 05.10.1994
[ Текст ] Ссылки http://zebu.uoregon.edu/2002/ph123/images/gaia.ps -- 46.2 Кб -- 05.10.1994
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1003. http://zebu.uoregon.edu/text/balick.txt
Bruce Balick is a Professor of Astronomy at the University of Washington. He has had a career long interest in the ionization structure of Planetary Nebulae. He was also the project scientist for the now successfully completed 3.5-m ARC telescope located at Apache Junction, New Mexico. These images are intended for educational use only and should not be distributed without permission.
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Ссылки http://zebu.uoregon.edu/text/balick.txt -- 1.4 Кб -- 22.08.1994
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1004. http://zebu.uoregon.edu/messier/m83.txt
M83 has an angular size of 12 x 10 arcminutes and has very high surface brightness. ... The high surface brightness is due to a very high star formation rate. Galaxies which have high star formation rates generally have strong spiral structure and M83 is an excellent example of this. This is a blue band imaged acquired remotely by using the array controller (ARCON) and a Textronix 2048x2048 CCD device on the CTIO 1-m telescope. ... The image was acquired on the night of August 18th. ...
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Ссылки http://zebu.uoregon.edu/messier/m83.txt -- 1.8 Кб -- 19.08.1994
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1005. http://zebu.uoregon.edu/postscript/p1522.ps
... Colour gradients per Bscale length ff B in LSB galaxies Name \Delta(U --B) error \Delta(B--V ) error \Delta(B--R) error \Delta(V --I) error per ff B per ff B per ff B per ff B F5611 \ Gamma0 :30 0:14 \ Gamma0 :11 0:08 \ Gamma0 :19 0:08 \ Gamma0 :14 0:16 F5631 \Gamma1:15 0:22 \ Gamma0 :06 0:13 \ Gamma0 :16 0:13 \ Gamma \ Gamma F563V1 \ Gamma0 :09 0:11 +0:04 0:07 \ Gamma \ Gamma \ Gamma0 :07 0:13 F564V3 \ ... The B \Gamma V and B \Gamma R colours do not vary much with surface brightness....
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Ссылки http://zebu.uoregon.edu/postscript/p1522.ps -- 260.7 Кб -- 05.08.1994
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1006. http://zebu.uoregon.edu/postscript/p79.ps
Surface photometry of low surface brightness galaxies 7 Table 1. ... 6) Total magnitude B 25 within 25 Bmag/ut 00 ellipse. ... The centers of the ellipses were usually determined by taking the maximum of the light dis tribution as the center. ... 3.2 Total magnitudes The total magnitude out to infinity mT , as defined by Equa tion (5), is a better estimate for the total luminosity of a LSB galaxy than the conventional m25 magnitude, which gives the amount of light within the 25 mag=ut 00 isophote. ...
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Ссылки http://zebu.uoregon.edu/postscript/p79.ps -- 456.4 Кб -- 05.08.1994
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1007. http://zebu.uoregon.edu/postscript/p12.ps
... 000, 000--000 (0000) Printed 1 August 1994 Surface photometry of low surface brightness galaxies W.J.G. de Blok, 1 J.M. van der Hulst, 1 G.D. Bothun, 2 1 Kapteyn Astronomical Institute, P.O. Box 800, 9700 AV Groningen, The Netherlands 2 Department of Physics, University of Oregon, Eugene, Oregon 97403, USA Received date; accepted date ABSTRACT Low Surface Brightness ( LSB ) galaxies are In this paper we present broadband photometry of a sample of 21 late type LSB galaxies. ... 1992). ...
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Ссылки http://zebu.uoregon.edu/postscript/p12.ps -- 113.8 Кб -- 05.08.1994
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1008. http://zebu.uoregon.edu/messier/m8.txt
M8 is also knowns as the lagoon nebula. This image has been processed to reveal the dark (dust) lanes that are prominent here. The overall extent of the nebula is approximately 1 x 1/2 degrees. M8 is ionized by one of the hottest stars in the galaxy and the complex interplay between the ionizing radiation and the scattering by the dust gives rise to the observed structure of the nebula.
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Ссылки http://zebu.uoregon.edu/messier/m8.txt -- 1.4 Кб -- 27.07.1994
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1009. http://zebu.uoregon.edu/messier/m27.txt
This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. ... This is a planetary nebula (see also the Planetary Nebula page on this server). It is relatively small, measuring approximately 8x4 arcminutes. Overall, the surface brightness of the extended ionized gas emission is one of the highest for any PN and therefore this object is easily seen through even small telescopes (including most finders). ...
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Ссылки http://zebu.uoregon.edu/messier/m27.txt -- 1.5 Кб -- 27.07.1994
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1010. http://zebu.uoregon.edu/messier/m20.txt
This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. This is the famous Trifid Nebula, often photographed. It is a nice illustration of the combined effections of ionization and scattering caused by the large yield of blue and UV photons from newly formed massive stars.
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Ссылки http://zebu.uoregon.edu/messier/m20.txt -- 1.3 Кб -- 27.07.1994
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1011. http://zebu.uoregon.edu/messier/m16.txt
This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. M16 is a young stellar cluster where the radiation of hot stars causes the surrounding hydrogen gas to become ionized. When the electrons and protons recombine a red emission line is given off. The blue nebulosity in this image is associated with preferential scattering of blue light by dust. M16 has an overall angular size of approximately 1/2 a degree.
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Ссылки http://zebu.uoregon.edu/messier/m16.txt -- 1.5 Кб -- 27.07.1994
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1012. http://zebu.uoregon.edu/messier/m42.txt
... This is the famous Orion nebula which is centered on the middle star of the sword of Orion (this is a 4th magnitude star). ... Here we present two CCD images of it. The black and white image was obtained using an ST6 Camera on a small telescope. The color image was obtained on the 48-inch telescope at Mt. ... The obtainer, Nelson Caldwell, took CCD images through Red, Green and Blue filters and later combined them to produce this image. ...
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Ссылки http://zebu.uoregon.edu/messier/m42.txt -- 1.6 Кб -- 20.07.1994
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1013. http://zebu.uoregon.edu/messier/m15.txt
M15 is easily accessible during the summer months. Its core is not quite as bright as in other globulars and the overall stellar distribution is fairly uniform across its 12 arcminute extent.
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Ссылки http://zebu.uoregon.edu/messier/m15.txt -- 1.2 Кб -- 20.07.1994
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1014. http://zebu.uoregon.edu/text/bcde
Subj: Non-detection of Fragment B We are observing at Palomar with the 200-inch Hale telescope, using a 7.9 micron imaging spectrometer in imaging mode and a 256x256 InSb at 2.35 microns. ... Subj: Negative observations of B impact from ESO La Silla Continuing observations with TIMMI at 9um on the 3.5m telescope and IRAC 2B at 2.2um on the 2.2m at ESO La Silla show that nothing was seen over the predicted impact site B up to 3:35UT, 17 July. ... The impact site has also been monitored at 2.20 microns. ...
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Ссылки http://zebu.uoregon.edu/text/bcde -- 10.4 Кб -- 17.07.1994
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1015. http://zebu.uoregon.edu/messier/m5.txt
MESSIER 5 AND ITS VARIABLES `A noble mass, refreshing to the senses after searching for faint objects' Admiral Smyth The oldest known stars have survived chiefly in the rich and wonderfully symmetric formations called globular star clusters. ... 2] Charles Messier revealed the globular cluster on May 23, 1764. ... The globular cluster itself is magnificient and granular at 60x. Individual small stars are scattered around the edges, and one or two of them can exceed the others in brightness. ...
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Ссылки http://zebu.uoregon.edu/messier/m5.txt -- 21.5 Кб -- 05.07.1994
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1016. http://zebu.uoregon.edu/postscript/pn.x.ps
UV Photons Ionized Gas cooling carbon core Planetary Nebula
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Ссылки http://zebu.uoregon.edu/postscript/pn.x.ps -- 4.4 Кб -- 01.07.1994
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1017. http://zebu.uoregon.edu/postscript/method.ps
Scientific Method ffl Make an Unbiased Observation ffl Propose an Explanation (Model) ffl Use the Model to Make a Prediction ffl Make a New Observation to test Prediction Then: a) Verify the Model (unlikely) b) Refine the Model c) Discard the Model SCIENCE is DISCOVERY
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Ссылки http://zebu.uoregon.edu/postscript/method.ps -- 35.5 Кб -- 01.07.1994
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1018. http://zebu.uoregon.edu/postscript/life.ps
How to Make Some Critters Evolutionary Advantage Drives Everything! Step 1: Rapid chemical synthesis of raw materials in the atmosphere produces amino acids: NH 3 + 2CH 4 + 2H 2 0 + energy = C 2 H 5 O 2 N + 5H 2 5H 2 CO = Ribose(food) 5HCN+UV +NH 3 = Adenine(anotheraminoacid) Step 2: Monomers loosely mixed in early oceans and shielded from UV Step 3: Local Evaporation, monomers concentrated in clays whose silicate surfaces act as a catalyst Step 4: L ...
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Ссылки http://zebu.uoregon.edu/postscript/life.ps -- 80.3 Кб -- 01.07.1994
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1019. http://zebu.uoregon.edu/postscript/intelligence.ps
... arises ffl quantum: universe runs by itself with statistical fluctuations present (e.g., us) ffl evolution: give a system enough time ?'s are pro duced ffl Borg: collective consciousness -- always been there just in different forms ffl cervasa: give it up we can't even ask the right ? ...
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Ссылки http://zebu.uoregon.edu/postscript/intelligence.ps -- 45.2 Кб -- 01.07.1994
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1020. http://zebu.uoregon.edu/postscript/cosmic.ps
Our Place in the Cosmos ffl Raw Ingredients for Amino Acids on planetary surfaces are abundant ffl High probability of planet within Habitable Zone around a star ffl If N o ?? 1 then L ?? 1000 years. ffl 1% of 10 9 years = 10 7 ) 1,000,000 civilizations per Galaxy ffl All Life is therefore significant: 1 Civilization per 100,000 stars in Galaxy ffl 3,000 stars = Naked Eye Horizon ffl No Parallel Civilizations ffl If you meet an ET ! ask them how to go in the 1% box ffl Path Decision? ...
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Ссылки http://zebu.uoregon.edu/postscript/cosmic.ps -- 39.5 Кб -- 01.07.1994
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