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1. Low Surface Brightness Galaxy Gallery
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. ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/sb2.html -- 4.8 Кб -- 26.05.2000
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2. Measurement of the dark halo shape in polar ring galaxies
... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/Doc-en/SciNews/2014/DMhalo/ -- 8.9 Кб -- 10.04.2016
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/Doc-en/SciNews/2014/DMhalo/ -- 8.9 Кб -- 10.04.2016
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3. Enhanced dust heating in the bulges of early-type spiral galaxies
Stellar density and bar strength should affect the temperatures of the cool (T ~ 20-30 K) dust component in the inner regions of galaxies, which implies that the ratio of temperatures in the circumnuclear regions to the disk should depend on Hubble type. ... The strong radiation field in the high stellar density of a galactic bulge tends to heat the cool dust component to higher temperatures, at least in early-type spirals with relatively large bulges, especially when paired with a strong bar. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~kgordon/papers/2010A&A...518L..56E.html -- 5.5 Кб -- 21.01.2016
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4. A new twist to polar rings
... ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Now, new Australia Telescope observations of the polar ring galaxy NGC 4650a suggest that the dark matter in this galaxy lies in a flattened distribution aligned with the polar ring. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/news/results/95Highlights_PolarRing.html -- 49.6 Кб -- 08.04.2016
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5. Polar Ring Galaxy NGC 4650A
... A rare type of galaxy known as a Polar Ring , NGC 4650A is composed of an old central group of stars and a young ring of stars rotating farther out. ... Polar Ring Galaxies allow astronomers to estimate the amount of dark matter in galaxies by measuring the rotation rate of the highly extended ring. ... Publications with keywords: ring galaxy - polar ring - dark matter - ring . Publications with words: ring galaxy - polar ring - dark matter - ring . ... Polar Ring Galaxy NGC 660 . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1163877 -- 15.9 Кб -- 20.10.2005
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6. Results and conclusions
Next: Bibliography Up: On the metallicities of Previous: Observations and data reduction . The results of chemical abundance determination for the studied galaxies are presented in Table 2 . The comparison of the respective data for UM 133 and UM 382 with the abundance ratios from Izotov & Thuan ([ 1999 ]) shows that they well agree with the derived average values for the sample of low metallicity BCGs. ... The full range of the velocity curve is about 100 km s -1 . ... UM 133 . ... UM 283 . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Laboratory/Publications/2000/UM-reobs/node3.html -- 15.4 Кб -- 07.02.2000
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7. Stellar Astronomy
... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...
[ Сохраненная копия ]  Ссылки http://space.univ.kiev.ua/courses/zor_astron_e.html -- 8.0 Кб -- 23.02.2005
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8. APOD: 2002 June 20 - Bright Galaxy M81
... 2002 June 20 . Bright Galaxy M81 . ... Explanation: Big and beautiful spiral galaxy M81 , in the northern constellation Ursa Major , is one of the brightest galaxies visible in the skies of planet Earth. This superbly detailed view reveals its bright nucleus, grand spiral arms and sweeping cosmic dust lanes with a scale comparable to the Milky Way . ... The errant dust lane may be the lingering result of a close encounter between M81 and its smaller companion galaxy, M82 . ... About APOD | ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap020620.html -- 4.4 Кб -- 01.10.2012
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9. NGC7674.html
The Seyfert-2 NGC 7674: . ... As part of a larger project to study Luminous and Ultra-Luminous IR Galaxies in both H I absorption and radio continuum at high resolution, NGC 7674 was observed using the VLBA, the phased VLA, and the 305-m Arecibo radio telescope. ... Figure 1 shows a moderate resolution continuum image of the innermost 1 kpc region of NGC 7674 at 1.38 GHz and 20 milliarcsecond (mas) resolution. ... No absorption is detected toward the components J, W, and SW. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~astro/aovlbi/NGC7674/NGC7674.html -- 6.8 Кб -- 19.03.2004
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10. GSAOI Dwarf Galaxies Science Page
... GSAOI Home . ... Science . ... For example, among the Milky Way's dE companions we see systems with dominant old populations, systems with minor intermediate-age (age ~ 2 to 10 Gyr) components, and systems where the intermediate-age component dominates the old stars. ... This variety of star formation histories is not restricted to the Galaxy's companions. ... To make progress in understanding the processes that govern dwarf galaxy evolution, we need to study systems beyond the Local Group. ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/gsaoi/science/dwarfs.shtml -- 9.5 Кб -- 01.10.2012
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11. http://www.arcetri.astro.it/radtran/talks/cvlahakis.pdf
The SCUBA Local Universe Galaxy Survey Dust along the Hubble sequence Catherine Vlahakis University of Bonn Collaborators: Steve Eales (Cardiff University) Loretta Dunne (University of Nottingham) Overview What is SLUGS? Results from the survey Recent work using SLUGS results ­ the FIR-radio relation Introduction: SLUGS SLUGS ­ a submm survey of galaxies in the local Universe ­ at 850m and 450m Survey of ~200 nearby galaxies: 104 60m-selected ("IRS") (Dunne et al. ...
[ Текст ]  Ссылки http://www.arcetri.astro.it/radtran/talks/cvlahakis.pdf -- 460.3 Кб -- 25.06.2007
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12. III International Astronomy Olympiad, Problems to solve
Text of these problems is available also in other languages : . ... What can one see in the Moon's sky more often - the Sun or the Earth? ... There are about of 250 millions of stars in the elliptical galaxy M32 (a satellite of Andromeda galaxy). ... The masses of Capella's components. ... You are proposed to estimate the masses of Capella's components, using our observational data. ... A galaxy's mass. ... Estimate the mass of FGC 1908 and compare it to the mass o