We present a sample of low-resolution 5-38 ЮМm Spitzer IRS spectra of the inner few square kiloparsecs of 59 nearby galaxies spanning a large range of star formation properties. A robust method for decomposing mid-infrared galaxy spectra is described and used to explore the behavior of PAH emission and the prevalence of silicate dust extinction. Evidence for silicate extinction is found in ~1/8 of the sample, at strengths that indicate that most normal galaxies undergo AV . ...

... Are HVCs a common feature of star forming galaxies? ... Consider the typical properties of the smallest HVCs (compact HVCs) found in HIPASS: . Distance . HI Mass . ... At 5 kpc . meager objects ~116 solar masses . ... 1.15 x 10 4 solar masses . ... Putman et al. (2003) found none to 10 7 solar masses. 2% of Sculptor to 3 x 10 6 solar masses by de Blok et al. (2001) found none. ... High velocity gas around other galaxies can be identified from maps and dynamics: . ... 2003) . ...

... Астронет | ... Simulation: A Disk Galaxy Forms . ... U. Washington ), N-Body Shop , NASA Advanced Supercomputing Explanation: How do galaxies like our Milky Way form? ... Публикации с ключевыми словами: galaxy formation - spiral galaxy - Milky Way - Млечный Путь - спиральная галактика - диск, галактический . Публикации со словами: galaxy formation - spiral galaxy - Milky Way - Млечный Путь - спиральная галактика - диск, галактический . ... Близкая спиральная галактика NGC 4945 . ...

The very metal-poor local dwarf galaxies - the analogs of primordial galaxies in young Universe . ... The goal of this project is the study of the properties of the local eXtremely Metal-Deficient (XMD) dwarf galaxies. ... S.A. Pustilnik, J.-M. Martin . ... Pustilnik S.A. "Dark galaxies" and local very metal-poor gas-rich galaxies: possible interrelations, in: Dark Galaxies and Lost Baryons, Edited by J.Davies and M.Disney, Proceedings of IAU Symposium No. 244, held 25-30 June, 2007 in Cardiff, UK. ...

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

... The formation of the disks of disk galaxies remains poorly understood. ... Many disk galaxies have only the thin disk component, with no bulge or significant thick disk. ... Almost all disk galaxies have an exponential radial surface brightness distribution. The reason for this exponential form is not known; nor is it known when the exponential form is established. ... We would compare low redshift galaxies observed in the I band with galaxies at z =0.5 in the J band and at z =1 in the H band. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... A file upload element on an HTML form. ... JavaScript 1.1: added type property . ... The HTML INPUT tag, with "file" as the value of the TYPE attribute. For a given form, the JavaScript runtime engine creates appropriate FileUpload objects and puts these objects in the elements array of the corresponding Form object. ... form . ... For all FileUpload objects, the value of the type property is "file" . ... Use the value property to obtain the file name that the user typed into a FileUpload object. ...

... ATNF Colloquium . New insights into how the galaxy-black hole connection works . ... In the quenching of late-type galaxies, environment (or halo mass) is a key parameter, while for early-types, an internal mechanism such as black hole feedback is more likely. I will also present a new approach to understanding how the black hole feedback mechanism may work: rapid swings in the Eddington ratio of AGN lead to short term "flickering" behavior on the ~1e5 year time scale. ... today * ATNF | ...

... Science . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Properties of kinematically decoupled structures in Early-Type Galaxies . ... Science Users Information . ... ESO-MIDAS . ... ESO Science Newsletter . ... The project consists in measuring the stellar kinematics, stellar populations, dynamics, and morphological properties of the kinematically decoupled structures observed in the inner regions of Early-Type Galaxies. ... Return to list of thesis topics...

... 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. ...

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...

... Пространство обгоняет Время, . ... Про это ускорение Вселенной . Но коль Пространство устает, то Время . ... Уж взгляд не удлинит пространство. Спецвыпуски Scientific American - это почти произведение искусства. Возможно, что в связи с ожидаемым выходом "В мире науки" это приобретет актуальность и для русскоязычных читателей. ... Вы выбираете очень интересную тему (для читателей интересную!), например, "Время", " Сознание" , "Происхождение жизни", "Космология". ...

... He considers some practical aspects of dependences of the optical properties of cosmic dust analogs on their parameters. ... First results of a systemtic study as well as a detailed comparison of different optical characteristics (cross-sections, phase function, etc.) of some complex shape and structure scatterers and their optical models are presented here and here . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Stars . ... Space Flight . ... A galaxy is born: This artist's impression shows a young galaxy, about two billion years after the Big Bang, accreting material from the surrounding hydrogen and helium gas and forming many young stars. ... Galaxies, distant from us in space and time, have been in the news recently. ... Astronomers at the European Southern Observatory have observed another process which helped primordial galaxies grow. ...

... 2012 July 17 . Simulation: A Disk Galaxy Forms . ... U. Washington ), N-Body Shop , NASA Advanced Supercomputing . ... Green depicts (mostly) hydrogen gas in the above movie , while time is shown in billions of years since the Big Bang on the lower right. ... For our Milky Way Galaxy , however, big mergers may not be over -- recent evidence indicates that our large spiral disk Galaxy will collide and coalesce with the slightly larger Andromeda spiral disk galaxy in the next few billion years. ...

... Recent studies indicate that stars are most likely forming within the binary and multiple systems. ... During several years we are conducting the observations of such multiple stellar systems at the BTA telescope in order to find their companions and study the properties therein. ... This star is interesting in that it may be a dynamically unstable multiple star, meaning that over time, such systems will split into individual stars. ... A bright component is a very tight spectroscopic binary star. ...

... Наушники второго поколения MOMENTUM отличается повышенным комфортом, складной конструкцией и односторонним сменным кабелем с пультом управления и микрофоном. ... Наушники . ... Обувь для кораллов iQ предназначена для пляжного отдыха, плавания в открытой воде, а также для любых видов водного спорта. ... Тип обуви: Туфли Открытые . ... Цвет: Белый . ... Лампы: светодиодная (LED),цоколь E27; 230 В; 12 Вт,цвет: белый дневной, 6400 K . ... Сопоставление с лампой накаливания: в 8.3 раза . ...

... Properties of a funnel in the supercritical accretion disks in SS433 and ULXs in galaxies . A structure of wind outflow from the supercritical accretion disk in SS433 is described on the base of observational data and current models. ... We suggest that the Ultraluminous X-ray sources (ULXs) observed in external galaxies are face-on SS433 stars (or face-on microquasars). ... We discuss properties of the supercritical disk funnels, which could be derived from observations of ULXs. ...