... An alternate model dominated by smaller grains, near the blowout size a~0.5 ЮМm, located at 30-40 AU is also possible but requires the dust to have been produced recently, since such small grains will be expelled from the system by radiation pressure in approximately a few times 102 yr. ...

... Астронет | ... планета Астронет | ... Сверхновые . Остаток сверхновой в гамма-лучах . ... Авторы и права: HESS Collaboration - image courtesy Werner Hofmann ( MPI ) . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Публикации с ключевыми словами: supernova remnant - остаток Сверхновой - gamma ray - гамма-излучение - cosmic rays . Публикации со словами: supernova remnant - остаток Сверхновой - gamma ray - гамма-излучение - cosmic rays . ... Симеиз 147: остаток сверхновой . ...

astro-ph/0702647 Открытие самой широкой очень маломассивной двойной (Discovery of the Widest Very Low Mass Binary) . ... Authors: John Stansberry, et al. astro-ph/0702347 Необычный двойной пульсар PSR J1744-3922: переменность радио потока, наблюдения в ближнем ИК и эволюция (The Unusual Binary Pulsar PSR J1744-3922: Radio Flux Variability, Near-infrared Observation and Evolution) . ... обзор astro-ph/0702068 Исторические наблюдения солнечных пятен: обзор (Historical Sunspot Observations: A Review) . ...

... Initially SAI Supernova Catalogue was presented in the form of filebased system. ... The current version of SAI Supernova Catalogue presents data on supernovae together with data on their parent galaxies. ... The main source of data for the galaxies was LEDA database. ... In some cases our data were compared with the ones from the Asiago Supernova Catalogue and from List of Supernovae at Harvard-Smithsonian Center for Astrophysics, but the compilation of our Catalogue is carried out independently. ...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

Next: Blinkers and Bi-directional Jets Up: J.G. Doyle, Research Astronomer Previous: J.G. Doyle, Research Astronomer . Gerry Doyle reports that collaborative research with Maria Madjarska has revealed for the first time the presence of bi-directional jets and magnetic reconnection occurring at coronal hole boundaries. ... Next: Blinkers and Bi-directional Jets Up: J.G. Doyle, Research Astronomer Previous: J.G. Doyle, Research Astronomer M.E. Bailey . ...

... Galaxy Evolution home . ... Regulating the ISM and star formation . Cosmological evolution of star-forming galaxies . The origin and evolution of radio sources . Radio sources and their environments . ... Observations of the local Universe clearly demonstrate that very active star formation phases (starbursts) are often associated with interacting and merging galaxies and that in these systems much of the short wavelength emission is absorbed by dust and re-emitted in the IR. ...

... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Late Stages of Stellar Evolution . Welcome to the home page of the Late Stages of Stellar Evolution" We are a research group which operates within the Astrophysics Group of the Australia Telescope National Facility. ... To investigate the late stages of stellar evolution and in particular the role of stellar mass-loss in the evolution of asymptotic giant branch stars, proto-planetary nebulae and extremely massive stars. ...

. Главное меню . Введение . Введение в задачи практикума STEV . Ознакомление . Знакомство с устройством задачи STEV . Расчет моделей . Расчет моделей звезд и эволюционных треков . Задания . Учебные задания . Теория . Краткая теория расчета эволюции звезд . Наблюдения . Сравнение теоретических расчетов с наблюдениями . Литература . Рекомендованная литература .

. Главное меню . Введение . Введение в задачи практикума STEV . Ознакомление . Знакомство с устройством задачи STEV . Расчет моделей . Расчет моделей звезд и эволюционных треков . Задания . Учебные задания . Теория . Краткая теория расчета эволюции звезд . Наблюдения . Сравнение теоретических расчетов с наблюдениями . Литература . Рекомендованная литература . Методическое пособие для практикума по теоретической астрофизике "Внутреннее строение звезд и звездная эволюция" для студентов 5 курса (в формате pdf)

... В этой работе дается обзор современного состояния теории и наблюдений одиночных нейтронных звезд. ... Here we review present state of theoretical and observational exploration of isolated neutron stars. ... We review basic physical processes connected with evolution of isolated neutron stars: cooling; magnetic field decay; period evolution; magnetospheric processes, accretion. We discuss evolution and population synthesis calculations of isolated neutron stars of different types. ...

... Астрофорум - астрономический портал ? ... Астрономические наблюдения (Модераторы: LeMay , Александр Репной , Грудцын Алексей ) ? Яркая сверхновая в галактике M82 . ... Первооткрыватель сверхновых звезд . ... Сообщений: 1 338 . Рейтинг: +128/-2 . ... 22.01.2014 [12:12:17] ? Этой ночью (21 января 2014) вспыхнула сверхновая в M82 в Большой Медведице! ... Это самая яркая сверхновая с 2011 года (2011fe в M101 в максимуме блеска была 9.9m). ... Сверхновая PSN J09554214+6940260 в M82. ...

... Dark Energy (Part of the Hubble Discoveries Series): http://hubblesite.org/hubble_discoveries/dark_energy/ (Flash-based multimedia tutorial on the discovery and meaning of dark energy; includes information on the origin and fate of universe) . ... Cosmology Visualizations from the NASA Universe Forum: http://www.cfa.harvard.edu/seuforum/einstein/resources_visual.htm#featcos (A series of computer visualizations of the evolution and structure of the universe, available in a number of formats.) ...

... Сегодня: 10 апреля 2016 г. Наблюдения за сверхновой SN 1987A в галактике Большое Магелланово облако позволили ученым сделать новые выводы о формирование вещества во Вселенной. В ходе наблюдений ученым впервые удалось идентифицировать холодную пыль, перемешивающуюся с разогретым до нескольким миллионов градусов газом. ... Подтверждение сделанных выводов внесет большой вклад в знания о зарождении пыли во Вселенной. ... Наблюдения за сверхновой открыли новые факты о зарождении вещества . ...

Supernova 2007uy and 2008D in NGC 2770 . This page is devoted to information on Supernova 2007uy and Supernova 2008D in NGC 2770 . ... Information on the original web pages for many of these images can be found on the updates and links web pages. 2007uy was discovered by Yoji Hirose (Japan)). ... 2008D was discovered by the Swift/XRT satellite which was then observing 2007uy , and announced by Lick Observatory Supernova Search (USA). ... SNWeb has a 2007uy page and 2008D page . ... JM Llapasset . ...

... Southern . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Discovery and characterisation of Pre Main Sequence stars in southern star forming regions . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Using a robust method to identify Pre-Main Sequence (PMS) stars through their photometric excess in the Hн± band, we have recently studied the star formation history in several star burst clusters in the Galaxy, Small and Large Magellanic Clouds. ...

Dr. Randall Smith . ... Research . ... X-ray Astronomy Schools . ... As this expertise applied generally тАУ to research in abundances and turbulence in galaxy clusters, the chemical composition ofthe Galaxy, and the plasmas found in supernova remnants amongst others тАУ it has led to collaborations working in nearly all areas of X-ray astronomy. ... X-ray Spectra : collisional plasma processes, diffuse emission, supernova remnants, X-ray scattering in dust grains . ... Dept. of Astronomy | ...

Общая Астрономическая Конференция > Практика > Астрономические наблюдения > Наблюдения внегалактических сверхновых . ... Просмотр полной версии : Наблюдения внегалактических сверхновых . ... 03.10.2008, 01:22 . Вспыхнула уже четвертая сверхновая за последние 40 лет в этой красивой северной галактике (на границе Б.Медведицы и Дракона)! Пришло сообщение, что сверхновая 2008fv типа Ia и у нее еще ожидается неделя роста блеска! Максимальный блеск может составить 13.5 зв.вел. ...

Next: Observations and reduction Up: The discovery of SN1998bv Previous: The discovery of SN1998bv . ... Since the life cycle of massive stars is very short (<30Myr), one can expect to observe more or less frequent SNe in galaxies where current intensive star formation takes place. ... 1998). ... The supernova SN 1998bv was discovered on April 6, 1998 in the galaxy HS 1035+4758 selected as an ELG candidate in the HSS. ... Figure 1: DSS image of the galaxy HS 1035+4758. ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...