СТУДЕНЧЕСКИЕ ОЛИМПИАДЫ ПО ГЕОМЕТРИИ И ТОПОЛОГИИ http://dfgm.math.msu.su/ les/skopenkov/geomolymp.pdf Обновленная версия статьи Мат. ... расстояние от точки Ai до прямой l. Будем рассматривать прямые l на плоскости, проходящие через точку O. Пусть I+ и I- | ... Найдите наибольшее целое n, для которого на плоскости существует кривая второго порядка, имеющая в точке (0; 1) касание n-го порядка с графиком функции y = cos x. Напомним [Ra03, §§ 22, 23], что если P | ... Возьмем точку a R2 - N . ...

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... Non-NGC Images . ... Distorted spiral galaxy..... image . ... 4041.......... image . ... Spiral galaxy in Com (M98)..... image ..... caption . ... Elliptical galaxy in Virgo cluster..... image . ... Spiral galaxy in Virgo (M61)..... image ..... caption . ... Elliptical galaxy in Virgo (M49)..... image ..... caption . ... Elliptical galaxy in Virgo (M87)..... image ..... caption . ... Elliptical galaxy in Virgo (M89)..... image ..... caption . ... Spiral galaxy in Virgo (M90)..... image ..... caption...

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• ASP: Card Games for the Whole Family - with a Cosmic Twist
• ASP: The Nearest Stars: A Guided Tour

... Astrophysics Group . ... Exploring the Cosmic Dawn . ... Cosmic reionization corresponds to the epoch in which the first stars€а and black holes reionize the neutral intergalactic medium (IGM) that€аpervades the Universe following recombination, within a few hundred€аmillion years of the Big Bang. The epoch of reionization, and the€аpreceding ?dark ages? prior to the formation of the first stars,€аrepresent the last unexplored phases of cosmic evolution to be tested€аand explored. ...

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• Dave Green: research
• Dave Green: Publications

AO Home AO Astronomy Robert Minchin Blog Publications IDL Routines . ... The Arecibo Galaxy Environment Survey X: The Structure of Halo Gas Around M33. Keenan O., Davies J., Rhys T., Minchin R. , 2016, MNRAS, 456, 951. The Arecibo Galaxy Environment Survey IX: the isolated galaxy sample. ... Wolfinger K., Kilborn V. A., Koribalski B. S., Minchin R. F. , Boyce P. J., Disney M. J., Lang R. H., Jordan C. A., MNRAS, 2013, 428, 1790. ... The Arecibo Galaxy Environment Survey: II. ...

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• HIDEEP and HIJASS Results
• The Search for HVCs in Other Galaxies

... Our Galaxy . ... Stars . ... We all love bright and showy spiral galaxies! So much so, that we tend to overlook the elliptical galaxies which make up about 30% of the galaxies out there. Smaller than spiral galaxies, elliptical galaxies may be full of stellar living fossils, surviving virtually unchanged from an older cosmic era. ... Elliptical galaxies are smaller than spiral galaxies, roughly spherical and full of old stars. ... We know that galaxies interact and even collide. ...

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• Night Sky Watcher Reviewed | Astronotes
• July Night Sky Wonders | Astronotes
• The September 2015 Night Sky | Astronotes

... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...

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Revolution: 0211 . POS_0211_010201_600_00_0002.XMM . ... 2001-02-01 | ... PSF version: 0211_03 . ... Slew: 5565 secs . ... Obs_dur: 10520 secs . ... 001: 10456 sec . ... 002: 10456 sec . ... 003: 9524 sec . ... 004: 9524 sec . ... 006: 323 sec . ... 007: 789 sec . ... 005: 8213 sec . ... 400: 820 sec . ... 401: 820 sec . ... 402: 848 sec . ... 009: 323 sec . ... 008: 789 sec . ... 403: 820 sec . ... 404: 820 sec . ... 405: 848 sec . ... Obs_dur: 30867 secs . ... 400: 262 sec . ... IMAGE . ...

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• XMM POS Summary for rev: 2595
• XMM POS Summary for rev: 1758
• XMM POS Summary for rev: 1959

... Previous: Object-Oriented Experiences with GBT Monitor and Control . ... An overview of the Australia Telescope National Facility (ATNF) Parkes Multibeam Software is presented. ... The major software component is realtime, and uses advanced inter-process communication coupled to a graphical user interface, provided by AIPS++, to apply bandpass removal, flux calibration, velocity frame conversion and spectral smoothing to 26 spectra of 1024 channels each, every five seconds. ...

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... By the summer of 2000 we will have nearly a year's worth of Chandra data in hand, and a correspondingly large variety of investigations will be possible. We are conducting a program of X-ray observations of groups of galaxies with Chandra and XMM. ... We'll use mostly archival data from the ROSAT and ASCA satellites, but we have some Chandra data on X-8 and we expect to get some better data during the summer which may be available for the student to work on towards the end of the project. ...

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• Centaurus X-3

Truebloodb,g, K. Zelayab Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43221 USA; bNational Optical Astronomy Observatory, 950 North Cherry Street, Tucson AZ 85719 USA; cCerro Tololo Inter-American Observatory, Casilla 603, La Serena ... USA ABSTRACT We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph ( KOSMOS ) for the 4-m Mayall ... Optical layout for KOSMOS and COSMOS. ...

192. http://www.zenit-foto.ru/doc/09_10_2014_preimprav.doc