... Aims: Today, large ground-based instruments, like VISIR on the VLT, providing diffraction-limited (about 0.3 arcsec) images in the mid-infrared where strong PAH features appear enable us to see the flaring structure of the disks around Herbig Ae stars. Although great progress has been made in modelling the disk with radiative transfer models able to reproduce the spectral energy distribution (SED) of Herbig Ae stars, the constraints brought by images have not been yet fully exploited. ...
Электронная библиотека астронома-любителя. ... архив RSN . ... Ru.Space.News: . Август 1998 . ... Дата: 19 августа 1998 (1998-08-19) От: Alexander Bondugin Тема: Cassini Update - August 14, 1998 Привет всем! ... Hа сегодня все, пока! ... Дата: 19 августа 1998 (1998-08-19) От: Alexander Bondugin Тема: NASA Selects 25 Innovative Small Business Projects Привет всем! ... Дата: 19 августа 1998 (1998-08-19) От: Alexander Bondugin Тема: Сегодня исполнилось 65 лет со дня запуска первой советской ракеты.. ...
... A nasty dispute between the Strategic Defense Initiative Organization (SDIO) and the space-science community was narrowly averted early this year when SDI officials backed down on a planned launch of a satellite with a Russian-built nuclear reactor on board. ... Early Soviet space reactors orbited for two to three months, and two Soviet Topaz 1 experiments, one for six and one 12 months, created radiation belts that disrupted the operation of scientific satellites. ...
... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...
... 33, No. 1, pp. 6271. i Formation of Power-Law Electron Spectra in Collapsing Magnetic Traps S. A. Bogachev 1 1* and B. V. Somov 2** Lebedev Institute of Physics, Russian Academy of Sciences, Leninski i pr. ... It is shown that if the electrons injected into the trap have a power-law spectrum, then their spectrum remains a power-law one with the same slope throughout the acceleration process for both the Fermi and betatron acceleration mechanisms. ... They do not coincide at energies below 20 keV. ...
Главная . ... Форум . Контакты . Вход/Регистрация . ... Вход . ... Поиск по форуму . ... Список форумов SkyWatching.Net . Введите ваше имя и пароль для входа в систему . Имя: . Пароль: . ... Забыли пароль? Solaris phpBB theme/template by Jakob Persson . Copyright Jakob Persson 2003 . Powered by phpBB 2001, 2002 phpBB Group . ...
The low aspect ratio, or spherical tokamak Globus-M [1] has recently been built in a support of international spherical tokamak plasma investigation program. ... The survey to determine the work scope in diagnostic design for Globus-M is given in the paper. ... The next one is an advanced diagnostic set intended to supply the data on basic plasma parameters: electron temperature and density profiles, ion temperature, plasma composition, radiation profile, Zeffective. ... Magnetic Diagnostics. ...
... 322, L29 ± L36 (2001) The 2dF QSO Redshift Survey ± V. The 10k catalogue S. M. Croom,1w R. J. Smith,2 B. J. Boyle,1 T. Shanks,3 N. S. Loaring,4 L. Miller4 and I. J. Lewis1 1 2 3 4 Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD Department of Physics, University of Durham, South Road, Durham DH1 3LE Department of Physics, Oxford University, 1 Keble Road, Oxford OX1 3RH Accepted 2001 March 7....
... Printed in U.S.A. NATURE OF NUCLEAR RINGS IN UNBARRED GALAXIES : NGC 7742 AND NGC 7217 O. K. Sil'chenko and A. V. Moiseev Special Astrophysical Observatory, Nizhnij Arkhyz 369167, Russia; moisav@sao.ru Received 2005 ... Isaac Newton Institute of Chile, Moscow Branch, Moscow 119992, Russia; olga@sai.msu.su ABSTRACT We have studied an unbarred Sb galaxy with a nuclear star-forming ring, NGC ... 1 7217, Pos. ... Left: Stellar velocity dispersion map for NGC 7217 according to the SAURON...
... Three energetic mechanisms are considered: multiple supernova explosions (SNe), a hypernova explosion associated with a gamma ray burst (GRB), and the vertical impact of a high velocity cloud (HVC). ... As a consequence, multiple SNe form rings with a high ring-to-center contrast K < 100 in the HI column density, whereas single hypernova explosions form rings with K < 10. ... Our simulations show (see Fig. 6) that both multiple SNe and single hypernovae may form rings of up to 2 kpc in diameter. ...
... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...
... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...
... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...
Structure of the supersmall satellites . Scientific equipment . Supersmall satellite "Universitetskiy" is manufactured by Production Corporation "Polyot" (Omsk, Russia) in the interests of Lomonosov Moscow State University. Supersmall satellite "Kompas-2" is a pilot project of multi-satellite system which is intended for prediction and motnitoring of natural and technologenical disasters. ... Composition of the scientific equipment of the "Universitetskiy" satellite. ...
... НОВОСТИ CASTROL ! ... Konforma Thermobile Industries B.V. is one of the most advanced European manufacturers of removable heaters of premises with the worldwide trading and service network. ... Stationary heaters on the used oil with tap of a smoke (AT/ATA) . ... Are very economic in operation due to economy of charges on fuel; . ... Models АТА can be maintained also on standard oil or diesel fuel. ... Company "AD REM" SRL is оfficial distributor of Konforma Thermobile products. ... AutoClick.RU . ...
... Съемочная группа японской телекомпании Super Produce company "Asahi TV" должна приехать нынешним летом в Кыштым для съемок документального фильма о странном существе по имени "Алешенька хорошенький", найденном в городе в 1996 году и исчезнувшем при странных обстоятельствах. ... Алешенька - существо 50 сантиметров ростом, с тонкими ручками, конусообразной головой и огромными глазами. ... В Кыштыме ждут японцев на съемки очередного фильма об инопланетянине Алешеньке . ...
... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...
... About meteorites . ... Meteorite Shirokovsky . ... The meteorite fell on the frozen Shirokovsky reservoir situated on the Kosva River near the village of Shirokovsky and the cities of Ugle-Uralsk and Kizel. ... Two slices were transferred to the Vernadsky Institute for study and research. ... M.A. Nazarov, Vernadsky Inst. ... Furthermore, the Shirokovsky samples do not contain typical accessory phases of stony-iron meteorites, and the accessory phases are completely atypical for all meteorites. ...