Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

. The elementary methods (that is, the use of real analysis vs. complex analysis) have a long history from Chebyshev to modern times. They lead to great achievements, due to Erdos, Selberg, Bombieri, etc. I recently started a thorough study of these methods, in order to understand their scope. In the talk, I will give a quick survey of this field, and some new observations. Go to the Laboratoire Poncelet home page. Site design by Paul Zinn-Justin

... Resolving the Sun's Hot Corona: High Resolution Solar Imaging in the Extreme Ultraviolet . Dr. Kelly E. Korreck . Thursday, Dec 11, 2014 at 8:00 PM . ... As SAO Project Scientist for the NASA rocket High Resolution Coronal Imager (Hi-C), she managed the funding, technical staff, and construction of the telescope leading to the highest resolution images ever of the Sun's hot atmosphere. ... Dec . ... 2017 Total Solar Eclipse . Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... During all period of our investigations Dr. N.Sumzina from the Institute of Applied Astronomy of RAS had prepared the Numbered Minor Planet positions from MPC Database for our processing with kind permission of the Director of Minor Planet Center Prof. Braian Marsden. ... Our extensive processing of the MPC data allows us to conclude that CCD observations of the Numbered and Unnumbered Minor Planets have the errors, sometimes very crude. ...

... 13, Moscow 119992, Russian Federation, e-mail: busarev@sai.msu.ru; 2 Research Institute Crimean Astrophysical Observatory, p/o Nauchnyi, Crimea 334413, Ukraine, e-mail: prok@crao.crimea.ua Summary: We propose a combined method of astronomical investigations of small or distant planets incorporating registration of a set of integral spectra of an object and their frequency analysis. ... An application of the method is shown on example of asteroid 21 Lutetia. ... 6] Busarev V. V. (2002), Solar Sys. ...

Astrophotography Forum Message . ... The resolution of a CCD camera does not depend on the number of pixels in the camera, rather it depends on the size of the pixels making up the chip and the focal length of the lens forming the image. ... A larger chip made from the same substrate will have identical pixel sizes, just more of them. ... With a fixed focal length telescope we don't have that luxury, in which case smaller pixel size rather than larger chip size is the only way to increase resolution. ...

МЕЖДУНАРОДНЫЕ ОРГАНИЗАЦИИ, ВЕДУЩИЕ РАБОТУ В ОБЛАСТИ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ОКЕАНА. ... Типы представленных данных . ... Данные ДЗЗ . ... NOAA (National Oceanic and Atmospheric Administration) отдел дистанционного зондирования океана . ... Данные MOMS, METEOSAT, NOAA . ... Данные ERS, ENVISAT . ... Лаборатория дистанционного зондирования океана университета Джона Гопкинса . ... Данные ERS, Radarsat, NOAA . ... Дополнительную информацию Вы можете получить по адресу: info@sputnik.infospace.ru . ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

ПУБЛИКАЦИИ - 1995 год . ... Atmospheric and Terrestrial Physics, - 1995, - v. 57, - v. 3, - pp. ... Observations of solar microwave spikes with high spatial resolution at the SSRT: first results. ... 1995. ... Уралов А.М. , Сыч Р.А. , Лубышев Б.И. , Нефедьев В.П., Головко А.А., Коробова З.В., Алиссандракис К.Е., Смарт Р.Н., Цанг Нонги. ... Тезисы докладов XXVI Радиоастрономической конференции (18-22 сент. 1995 г.), Санкт-Петербург, 1995, с.181-182. ... А.М. Уралов , В.М. Мишин. ...

Individual papers from the VSOP Symposium Proceedings, "Astrophysical Phenomena Revealed by Space VLBI", eds H. Hirabayashi, P.G. Edwards and D.W. Murphy (ISAS), can be downloaded as gzipped postscript files by clicking on the links below. ... Multi-Epoch Global+VSOP/HALCA Observations of Virgo A at lambda 6 cm . ... Space-VLBI Observations of the Core-Jet in the Nearby Spiral Galaxy M81 . ... H. Hirabayashi, P.G. Edwards, B.G. Piner et al. ... Pentachromatic VSOP and VLBA Survey of GPS Sources . ...