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. The International Conference . Absorption Spectra of Translucent Interstellar Clouds . Observers meet Experimentalists . August, 4-9, 2008 . Special Astrophysical Observatory of the Russian Academy of Science, . Nizhnij Arkhyz, Karachaevo-Cherkesia, Russia .

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

The Wind spacecraft. ... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... For additional details and updates, see the home page of the "Wind" mission. Exploration" home page (index) Glossary . ...

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

... Access key help . ... Astrophysics Group . ... Galaxy Formation and Evolution . Main Projects . ... PhD Thesis Projects . ... One of the main goals of the instrument is to identify and characterise the first galaxies formed in the early Universe and to track their evolution through the cosmic epoch by delivering the deepest spectra ever obtained for these objects in the near-IR range. ... SPIRE programme) on the evolution of the dust content in galaxies. ...

Next: Emission-line galaxies Up: The Hamburg/SAO Survey for Previous: Data reduction . ... Among them 128 are new or confirmed emission line galaxies, 6 are quasars (all with redshifts in the range 2.93 to 3.35) and 23 are galaxies without emission lines (only 5 of them have good enough S/N ratio to identify absorption features and to measure redshifts). ... Emission-line galaxies . ... Non emission-line objects . Absorption line galaxies . Stellar objects . Non-classified objects . ...

... ГАО. ... НАН Укра?ни . ... 16 вересня 2016 року в ГАО НАН Укра?ни в?дбудуться Орловськ? читання. ... Головну астроном?чну обсерватор?ю НАН Укра?ни засновано 17 липня 1944 р. з ?н?ц?ативи в?домого вченого, астронома й геоф?зика, Олександра Яковича Орлова (1880 ? ... В Головн?й астроном?чн?й обсерватор?? пл?дно працюють 8 наукових в?дд?л?в: астрометр??, ф?зики з?р та галактик, косм?чно? геодинам?ки, ф?зики косм?чно? плазми, ф?зики т?л Сонячно? системи, ф?зики Сонця, експериментально? астроф?зики ? ...

... 1-е сообщение . ... Назад в САО . ... 25 сентября 2009 . ... ГАЛАКТИЧЕСКИЕ И АККРЕЦИОННЫЕ ДИСКИ . Нижний Архыз, 21-26 сентября 2009 г.) . ... Засов А.В. (ГАИШ МГУ) . Расторгуев А.С. (ГАИШ МГУ) . ... Сазонов С.Ю. (ИКИ РАН) . Сильченко О.К. (ГАИШ МГУ) . ... Постнов К.А. (ГАИШ МГУ) . Фабрика С.Н. (САО РАН) . Хоперсков А.В. (ВолГУ) . ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . Research results on fast active processes General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases ... Distribution of the recorded spikes in duration . ...

... Главная Новости План работы Научные программы Инструменты Проект 2.5М Обсерватория Исполнители проекта Вопросы и ответы . Кавказская Горная обсерватория и Зеркальный 2.5-метровый телескоп это новый проект ГАИШ МГУ , направленный на развитие наблюдательной базы оптической астрофизики в России. ... Эти работы будут инициироваться по ходу проектирования обсерватории и строительства телескопа, по мере появления соответствующих необходимостей и прояснения конкретных задач. контакты: kgo@sai.msu.ru . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

Mikhail Medvedev (University of Kansas) HEA- 2007 , IKI, Moscow Missing baryons in inter-cluster gas Afshordi, et al, 2007 , astro-ph/0612700 35% +/- 8% Sample of 260 clusters WMAP SZ 3yr data Compared with 11 simulated clusters Assumed: Universal NFW profile Self-similarity Isothermal gas Possible explanations Observed stellar mass in galaxies: ~ 10% (Lin, et al, ... Simulations indicate that the effect is small (Dolag, et al, 2004) Can account for ~1-2% missing mass at most ...

... Master . Master net Homepage . ... MASTER-Amur . ... Amb: . Dust: . ... Direct . 23s . ... 45s . ... observed area: . best limit: . Cameras . ... MASTER-Tunka . ... MASTER-Ural . master.kourovka.ru . ... MASTER-Kislovodsk . ... MASTER-Crimea . ... MASTER-SAAO . ... MASTER-IAC . ... MASTER-Argentina . master.sai.msu.ru:8080 . master.sai.msu.ru . ...

... Contacting and discussing with people sharing your interests, participating in night sky observations with telescopes as well as a large choice of astronomical books, magazines and video-tapes out of our club library. ... A reasonable compromise for observing both planets and brightest deep sky objects ( nebulae, galaxies) are either a 4 to 8 inch mirror telescope ( Newton, Schmidt-Cassegrain ) or a 3 to 4 inch refracting ( lens) telescope. ... Where can I buy a telescope in Luxembourg ? ...

... The main routine accepts a space-separated list of event files of any combination of MOS and PN exposures. This task assumes that SAS tasks cifbuild , odfingest and one of the event-list producing EPIC MOS or PN task ( emchain , emproc , epchain , epproc ) have previously been run. ... Create Source Image using evselect. ... Run evselect to produce filtered, flare-free events file. Run evselect to produce filtered, flare-free image. Run evselect to produce corner-only events file. ...

... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...

Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...