... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... As we close in on part of the small constellation of Corona Australis we start to see faint clouds and in the final part of the video the full glory of the dramatic star formation region NGC 6729 is revealed in a new image from the FORS1 instrument on ESOтАЩs Very Large Telescope. ...

... Fractal Interstellar Dust Up-Close . ... But nobody really knows what a typical interstellar dust grain looks like. By studying how dust absorbs, emits, and reflects light, astronomers do know that interstellar dust is much different than the cell and lint based dust found around a typical house. Interstellar dust grains are composed mostly of carbon, silicon, and oxygen and are usually less than about 1/1000 of a millimeter across. ... Публикации с ключевыми словами: Межзвездная пыль . ...

... An estimate the rotation period of cometary nuclei is important for understanding and describing the physical processes of the cometary activity. Unfortunately, the measurements of the rotation periods of the comet nucleus depend on the model assumptions and it is one of the main reasons for the scatter of the estimates given in various articles for a given comet. ... Right: the image of the comet 29P/Schwassmann-Wachmann 1 obtained at the 6-m telescope. ...

Nearby resolved dwarf galaxies provide excellent opportunities for studying the dust-producing late stages of stellar evolution over a wide range of metallicity (тАУ2.7 75% complete at the tip of the red giant branch for all targeted galaxies, with the exception of the crowded inner regions of IC 10, NGC 185, and NGC 147. This photometric depth ensures that the majority of the dust-producing stars, including the thermally pulsing AGB stars, are detected in each galaxy. ... ADS Citation Query . ...

... Dust :: EBins . ... References dust_EBins::Emax , dust_EBins::Emin , dust_EBins::n , and dust_EBins::Teqi . ... References AllocatePointers() , dust_EBins::Emax , dust_EBins::Emin , dust_EBins::n , and dust_EBins::Teqi . ... References dust_EBins::Emax , dust_EBins::Emin , and dust_EBins::Teqi . ... References DeletePointers() , dust_EBins::Emax , dust_EBins::Emin , dust_EBins::n , and dust_EBins::Teqi . ... References dust_EBins::Emax , and dust_EBins::Emin . ... References dust_EBins::Teqi . ...

... В теме В разделе По форуму . ... Темы, интересные всем ? ... Научная панорама ? astro-ph/0607028: don't trust the dust! . ... Не верьте пыли! -- призывают нас Паоло Падоан с коллегами. ... Удобно представлять, что мы можем оценить массу пыли, умножить ее на 100 и получить тем самым массу газа. ... Падоан с коллегами сравнили параметры распределения пыли в Тельце с параметрами распределения там же молекулы 13 CO и нашли, что параметры эти существенно различаются. ... Про числа они говорят так. ...

... Effective immediately, the following telescope dust closure rules and guidelines will be followed by all users of APO telescopes, both by operations staff and visitors. ... 3.5-m Telescope: . use dust monitor in enclosure when telescope is open. when > 1 micron dust level is in the 2000 to 3000 range, operate enclosure pressurization fan and close louvers while telescope is open, checking enclosure dust level every 15 minutes. if level inside enclosure exceeds 3000, close telescope. ...

... Abstract: We present an extensive study of the radiative transfer in dusty galaxies based on Monte Carlo simulations. ... We have explored the dependence of A_l on a conspicuous set of quantities (Hubble type, inclination, dust optical thickness, dust distribution and extinction properties) for a large wavelength interval, ranging from 1250A to the K band, thus finally providing a comprehensive atlas of dust extinction in galaxies, which is electronically available. ... S04_MD20[ att , abs ] . ...

... Press Releases . ... Press & Web Coverage . ... To a stone, dirt on the ground is a speck of dust. From the tower of the church, a stone is dust. From Belfast, the Cathedral is dust. ... From Jupiter, Northern Ireland is dust. From the Sun, the Earth is dust. From the edge of the galaxy, the Sun is dust. From the far reaches of space, the galaxy is dust. ... Sunday, 20 September 2009 22:10 . International Year of Astronomy, Ireland National Node . ...

Next: Extinction properties (transmitted radiation) . ... The notes in their current form concern only 2 but main for astronimy aspects of the optical properties of cosmic dust - the ability to extinct and polarize transmitted radiation. The corresponding obervational effects the extinction and polarization (not due to scattering) plaied and plays till now the primary role in astrophysical effects of cosmic dust considered in the literature. ... Extinction properties (transmitted radiation) . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. January 4, 1998 . Fractal Interstellar Dust Up-Close . ... But nobody really knows what a typical interstellar dust grain looks like. ... The above picture shows the result of a fractal adhesion model for dust grains involving random conglomerates of spherical compounds of different properties, here artificially highlighted by different colors. ...

This is a study of the interstellar matter associated with the Pleiades star cluster. ... Since that time, the project has been extended to include more thorough tests of dust scattering models, more detailed analyses of the gas kinematics, and power spectrum studies of the multiscale structure of the nebulosity. ... The Pleiades Reflection Nebula. ... Gibson, S. J., & Nordsieck, K. H. 2003, Astrophysical Journal , 589 , 347 . ... B&W preprint: local gzipped PS . Color preprint: local gzipped PS | ...

... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... LX - Rear Thread Aluminum Dust Cover . ... Rear Thread Aluminum Dust Cover for SC and ACF optical tubes. ...

... Коврики в салон не только улучшат внешний вид салона вашего автомобиля, но и надежно уберегут его от пыли, грязи и сырости, а значит, защитят кузов от коррозии. Полиуретановые коврики для автомобиля гладкие, приятные и не пропускают влагу. ... Автоковры из полиуретана надежно удерживают грязь и влагу, при... ' title=' Тюбинг Туба-Дуба Т-87 - Туба-ДубаТ-87' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Хотите провести незабываемое время на зимней прогулке? ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Cosmic engine for senior students . ... Obscuration by Diffuse Cosmic Dust . ...

... The dynamics of silicate and graphite particles with radii of (0.1-2) 10 -5 cm in the vicinity of the Milky Way is considered. The equation of motion of dust grains is integrated with gravitational attraction, radiation pressure, gas drag, and dust destruction taken into account. The effect of other factors on the motion of grains are discussed. ... Dust is swept out of the Galaxy by radiation pressure from stars at a rate of 0.04 M o yr -1 . ...

. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. Data and time of observation: April 27, 1997, 21:25 LT. Comet-Earth distance: 1.7 a.u. Time of exposure: 10 min. Field of view : 3 minutes of arc. Distance between shells, in average: 15 000 km. Diameter of bright coma in the picture center: of about 5 000 km. Last updated: January, 2005.

. Album : asv-album :: Technical photos :: a80tests ::Sensor dust detection . Up . IMG 0297 . IMG 0298 . IMG 0299 . IMG 0300 . IMG 0301 . IMG 0302 . IMG 0303 . IMG 0304 . IMG 0305 . IMG 0306 . Photo album generated by album tool from MarginalHacks by David on Mon Jan 19 20:23:22 2015 .

home publications > mercury . ... Publications of the ASP (PASP) . ... Collecting Cosmic Dust . ... Scientists go to Antarctica, the stratosphere, and the seafloor to collect material more precious than gold, dust that tells how the stuff of life was brought to Earth. by Monika Kress . About 40,000 tons of space dust and rocks, the leftover wreckage of our solar system?s birth, fall to Earth each year. ... Meteorites are bits and pieces of asteroids, the Moon, and Mars that have fallen to Earth. ...

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