A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... SUBJECT: 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... which will be held in Beijing, P.R. China, from August 25-29, 2014, hosted by Chinese Academy of Sciences . ... China), . ... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. ...

... The overall globular cluster population is divided by gap in the metallicity function at [Fe/H]=-1.0 into two discrete groups with well-defined maxima at [Fe/H]=-1.60?0.03 dex, and -0.60?0.04 dex. ... Clusters with extremely blue horizontal branches occupy a spherical volume of radius ~ 9 kpc, have high rotational velocities ( V rot =77?33 km/s), have substantial and equal negative radial and vertical metallicity gradients, and are, on average, the oldest group (the old-halo subsystem). ...

... 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 . ...

... A bibliographic database will be constructed with the purpose to be a general tool for searching references for galaxy clusters. ... Clusters of galaxies are the largest gravitationally bound systems in the Universe. ... It is reasonable to test the basic concepts which will be incorporated in the database using A/ACO clusters of galaxies (Abell 1958; Abell, Corwin, & Olowin 1989). ... The first catalog of clusters of galaxies was published by Abell (1958) for and extended by Abell et al. (1989) for...

Тема : Астрономические исследования, открытия (факты, гипотезы, комментарии) .. Показать сообщение отдельно . ... For, HD 20010) является бинарной системой состоящей из гиганта спектр. типа F8 (~3.90m.) и карлика спектр. типа G7 (~ 6.5m.), общая магнитуда системы Alpha Fornacis 3.80m., спектр. тип = F8IV - F6V, находится приблизительно в 46 + 0.4 ly (14.1 + 0.1 pc) световых годах от Земли .. ...

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Лыскова Н., Чуразов Е. Цикл работ "Простой и быстрый метод оценки массы эллиптических галактик и скоплений галактик". ... Определение масс таких объектов, как эллиптические галактики и скопления галактик, имеет важное значение для космологии и изучения процесса их формирования. ... Значение круговой скорости Vc или полная масса эллиптической галактики/скопления галактик могут быть оценены, исходя из профилей поверхностной яркости I(R) и дисперсии лучевых скоростей ?p(R) пробных частиц. ...

... Primordial theory review : Dick Bond . Defects and the CMB review : Andy Albrecht . ... Gravitational wave contribution to CMB anisotropies : V.B. Lukash and E.V. Mikheeva . C_l from cosmic strings : Lloyd Knox . Some aspects of CMB anisotropies induced from topological defects : Mairi Sakellariadou . ... CMB anisotropies from scaling sources : Ruth Durrer . ... SZ observations I : Sarah Church . ... Holes in the microwave sky? ... Detecting cosmic strings in the CMB : James Robinson . ...

... Session 1 - Stars, star formation, stellar populations and planets . 9.20 10.00 . ... HST Spectroscopy of the Hottest White Dwarfs . ... Coffee break . ... Lunch break . ... A (long) look at neutron stars with HST . ... Session 2 - Nearby galaxies, bulges, spheroids, galaxy formation . ... New HST/ACS Insights into the Evolution of Star-Forming Dwarf Galaxies with Extreme Properties of Cosmological Relevance . ... Deriving properties of Lyman-break galaxies at z~3-5 using HST/VLT/Spitzer data . ...

Clusters of galaxies are the largest gravitationally bounded structures in the Universe dominated by dark matter. We review the observational appearance and physical models of plasma structures in clusters of galaxies. ... The knowledge of the complex dynamical and feedback processes is necessary to understand the energy and matter balance as well as to constrain the role of the non-thermal components of clusters. ...

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Portrait of Sir William Herschel (1738-1822) Royal Astronomical Society . Probably the most famous astronomer of the 18th century, Sir William Herschel discovered, in addition to the planet Uranus, many new nebulae, clusters of stars and binary stars. ... Other Herschel Family Portraits . Mirror by Herschel . Return to A Short History of Armagh Observatory . Last Revised: 2009 November 23rd . ...

Central Bodies Masses of Selected Globular Clusters N.A.Shakht, A.A.Kiselev, Yu.N.Gnedin and E.A.Grosheva. The Main Astronomical (Pulkovo) Observatory RAS 47 Tuc ­NGC 104 RA 00 24 .1 Dec -72° 04 .9 Size = 30.9 mvis + 4. 0 m D from = 12,1 kpc, h m Cen - NGC 5139 NGC 6397 (Ara) RA 17 h40.m7 Dec -53o 40'.4 Size = 31',0 mvis + 5,3m D from =2.3 kpc RA 13h 26m .8 Dec -47° 28 6 Size = 36.3 m vis +3. 7 m D from =15.8 ±1.1 kpc, 12109 years, Age: 10109 years, (13.4 ± 0.8)109 years. ...

Find Similar Abstracts . ... The velocity of clusters of galaxies relative to the microwave background. ... BACKGROUND RADIATION, GALACTIC CLUSTERS, MICROWAVE SCATTERING, VELOCITY MEASUREMENT, HIGH TEMPERATURE GASES, MICROWAVES, POLARIZED RADIATION, RADIAL VELOCITY, RADIO ASTRONOMY, THOMSON SCATTERING . ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

Feb 28 2016 Lacerta - The Lizard IC 1434 11mmT6 Open Cluster 12.0 III 2 m LOOSE GROUP,15-20 STARS,R=F Nov 16 2012 18 IC 1442 11mmT6 Open Cluster 12.0 III 1 p TIGHT GROUP, STARS=20+,R=F Nov 16 2012 18 IC 5180 7mm TV VF,PS,UB, NND ,AV1,R=F Galaxy E: Sep 14 2012 18 IC 5217 11mmT6 VS,VF,R=F Planetary Neb 2 Nov 16 2012 18 MAC 2221+3632 17mmT4 VF,ES,R, NND ,AV,R=F Galaxy Sep 11 ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

Working session on Standard Candles Chair: F. Haberl · Definition of standard candles Sources with constant X-ray flux: white dwarfs isolated neutron stars supernova remnants cluster of galaxies · Scientific drivers for accurate absolute fluxes neutron star radii cosmology (e.g. total mass of galaxy clusters, Sunyaev Zeldovic effect) · Calibration purposes absolute flux ...

... V.V.Makarov, V.P.Reshetnikov, V.A.Yakovleva . Photometric study of the peculiar galaxy NGC 2685" . ... eds.), Tallinn, 1989, p.19 . ... Press, 1994, p.272-273 . ... A.A.Mullari, V.V.Orlov, St.Petersburg Univ. ... conference, St.Petersburg, 1997, p.168-169 . ... All-Russian Astronomical Conference, Book of Abstracts, . ... in "Astronomy: traditions, present, future", V.V.Orlov, V.P.Reshetnikov, N.Ya.Sotnikova (eds.), St.Petersburg University Press, 2007, p.92-115 (in Russian) . ...