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. ...

Еще в разделе: (Показать все результаты (>443) - zebu.uoregon.edu/ )

• Astronomy HyperText Book: Stellar Evolution
• Astronomy HyperText Book

... Astrophysics Group . Research . Cosmic Microwave Background (CMB) . ... A significant fraction of the Astrophysics Group is involved in work on the Cosmic Microwave Background, both experimental and theoretical. We are currently operating the Arcminute Microkelvin Imager , an arcminute-scale survey telescope, and developing analysis techniques for the Planck satellite. ... 2013, Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE . ...

Еще в разделе: (Показать все результаты (>1815) - www.mrao.cam.ac.uk/ )

• Astrophysics Group Arcminute Microkelvin Imager (AMI) Digital Correlator
• Galaxy Evolution: Cosmological evolution of star formation
• Galaxy Evolution: Computing

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...

Еще в разделе: (Показать все результаты (>66020) - www.eso.org/ )

• ESO - Thesis Topic: Next generation Fornax Cluster surveys
• ESO - PhD Thesis Topics offered by ESO Faculty Members
• IAU Symp317 Scientific Program

... Chandra Observation of DEEP2 Galaxy Groups and Clusters . ... Monday: 'Normal' Galaxies, Tuesday: Cluster Formation and Evolution . ... Statistics of galaxy groups in ultradeep XMM surveys. ... What can multiwavelength observations tell about cluster/group formation as well as galaxy evolution? ... I will present results from a Chandra study of eight low-redshift clusters that has systematically measured the AGN fraction in clusters and describe their spatial, kinematic, and host galaxy...

Еще в разделе: (Показать все результаты (>3653) - hea-www.harvard.edu/ )

• http://hea-www.harvard.edu/~alexey/about.html
• The AstroStat Slog Blog Archive my first AAS. IV. clustering
• The AstroStat Slog Blog Archive [ArXiv] Bimodal Color Distribution in GCS,

... We have simulated the observations of a very distant cluster of galaxies at high redshift. ... The simulations are made for the HST instruments FOC, WFPC II, and the Advanced Camera, and for an 8-m telescope on the ground equipped with adaptive optics. ... A comparison of the fields of view of post-COSTAR HST imaging instruments with the Advanced Camera (AC) and the ground-based adaptive optics camera (AO) is shown in Fig. 1 superimposed on the noise-free cluster simulation. ...

Еще в разделе: (Показать все результаты (>20424) - www.stsci.edu/ )

• HST this week: 275
• Gregory F Snyder
• HST this week: 315

Chiaki Kobayashi, Ralph Sutherland How galaxies did form and evolution? - to answer this unsolved problem, we are simulating the formation and evolutionary history of galaxies in the Universe, including star formation, supernovae feedback, and chemical enrichment. Comparing the spacial distribution of elements within galaxies with observations, we will examine fundamental physical processes that drive galaxy formation. ... COALA : Universe Galaxy AGN Star Planet ...

Еще в разделе: (Показать все результаты (>778) - www.mso.anu.edu.au/ )

• Blue Straggler Stars
• CHIAKI's Research

... The obtained results lead to the following conclusions: a) the heavy element enrichment had taken place in the Galaxy in a few bursts of its activity rether than in a continuons manner; b) these bursts occured during the callapse of the early Galaxy; c) the star formation had been inhibited in the time of the bursts; d) the metal enrichment did not proceed in the periods of star formation, between these bursts of activity. ...

Еще в разделе: (Показать все результаты (>114) - ip.rsu.ru/ )

• Population of Galactic globular clusters, figures
• Population of Galactic globular clusters, tabl
• Vladimir Marsakov Publication List

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

Еще в разделе: (Показать все результаты (>272) - mavr.sao.ru/ )

• articles_flera_en
• topic_en
• articles_alex_01

Formation of intra-group HI gas through multiple galaxy encounters and ram pressure stripping Kenji Bekki (ICRAR at UWA, Australia) (Figures from APOD) Physical processes that drive galaxy evolution in different environments. (a) Ram pressure stripping due to hot intergalactic medium in clusters. ... Ram pressure of warm/hot intra-group gas on extended gaseous (HI) disks of galaxies in small groups and filaments (with Westmeier T. et al. ... 2011) Gas kinematics of disk galaxies under ram pressure. ...

Еще в разделе: (Показать все результаты (>21205) - www.atnf.csiro.au/ )

• ATNF Colloquium
• Late Stages of Stellar Evolution
• Stellar Evolution - the life and death of stars

... The study of the Large-scale structure of the Universe and measurements of the Dark Energy equation of state; The exploration of the growth and cosmological evolution of supermassive Black holes in the Universe. ... In course of the all sky survey SRG will discover about 100 000 galaxy clusters and 3 million AGNs. Galaxy clusters are the largest gravitationally bounded objects in the Universe and are best explored through the study of X-ray emission from the hot intergalactic gas. ... 2016 IKI RAN ...

Еще в разделе: (Показать все результаты (>844) - hea.iki.rssi.ru/ )

• z90-program
• Zeldovich-90: COSMOLOGY AND HIGH ENERGY ASTROPHYCIS
• Second Spectrum-RG/eROSITA Conference

... The observed isotropy on the sky and non-uniform spatial distribution of gamma-ray bursts   (GRB) revealed by the BATSE   device onboard the Compton Gamma-Ray Observatory (e.g. Meegan et al. , 1992)[ 138 ] lend support to the idea of a cosmological origin of GRB (Prilutski and Usov, 1975;[ 165 ] Usov and Chibisov, 1975)[ 199 ] for which the best candidates could be merging binary NS+NS   or NS+BH   at high redshifts (z 1 -2), (Blinnikov et al. ... Calculation of Binary Neutron Star Coalescence Rates...

Еще в разделе: (Показать все результаты (>938) - xray.sai.msu.ru/ )

• ADS Abstract Service Results
• Effect of sources evolution on
• Index

... Illusion and Evolution in Galaxy Cluster Abell 2667 . ... Explanation: What's happening to the galaxies of cluster Abell 2667? ... To start, most of the yellowish objects in the above image from the Hubble Space Telescope are galactic members of a massive cluster of galaxies known as Abell 2667 . ... Light from this galaxy is gravitationally lensed by Abell 2667, appearing much like a distant person would appear through a wine glass. ... Abell 370: Galaxy Cluster Gravitational Lens . ...

Еще в разделе: (Показать все результаты (>92824) - www.astronet.ru/ )

• The Hydra Cluster of Galaxies
• Астронет > Illusion and Evolution in Galaxy Cluster Abell 2667
• Астронет > The Hydra Cluster of Galaxies

Our early publications since 1990 till 1995 year . ... 7.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu.Kniazev, J.A. Stepanian, 1990, Nature, 343, 238, Unusual low heavy-element abundance found in the blue compact galaxy SBS 0335-052 8.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu,Kniazev, J.A.Stepanian, 1990, Physical Processes in Fragmentation and Star Formation, 1990, Kluwer Academic Publisher, p.235-240. ... New blue compact dwarf galaxies with low heavy-element abundances. ... 1993. ...

Еще в разделе: (Показать все результаты (>1369) - www.sao.ru/ )

• "Structure" publications in 1996 year
• Gravitational Lensing by Clusters of Galaxies
• A VLA Survey of Rich Clusters of Galaxies II

... LMC Project Outline . NGC 1818 Initial Results . ... The Large Magellanic Cloud (LMC) is uniquely suitable for the study of massive star clusters at all stages of evolution. By combining HST observations of these clusters with N-body models we hope to understand the origin and evolution of rich star clusters in our own Galaxy, in the LMC, and beyond. ... We aim to combine our HST observations with N-body models to understand the formation and evolution of globular clusters. ...

Еще в разделе: (Показать все результаты (>228) - www.stecf.org/ )

• ESLAB 2007

... VLA observations and Tully-Fisher distances of gas-poor spiral galaxies in the Virgo Cluster Region . ... The HI-H2 Pressure Relation In Early-Type Galaxies . ... Tracing evolution of early-type spirals through the neutral hydrogen window . ... An Arecibo HI 21-cm Absorption Survey of Rich Abell Clusters . ... The Arecibo Ultra-Deep Survey . ... Absorption in varying galactic environments seen in HI surveys . ... Early-type galaxies with neutral hydrogen in the Virgo cluster from the ALFALFA survey ...

Еще в разделе: (Показать все результаты (>2939) - www.naic.edu/ )

• Jodrell Multi-beam Virgo Survey
• Murray Lewis

... 2007 March 5 . Illusion and Evolution in Galaxy Cluster Abell 2667 . ... Explanation: What's happening to the galaxies of cluster Abell 2667? ... To start, most of the yellowish objects in the above image from the Hubble Space Telescope are galactic members of a massive cluster of galaxies known as Abell 2667 . ... Light from this galaxy is gravitationally lensed by Abell 2667, appearing much like a distant person would appear through a wine glass. ... About APOD | ...

Еще в разделе: (Показать все результаты (>3620) - www.sai.msu.su/ )

• APOD: 2011 June 29 - Abell 2744: Pandora's Cluster of Galaxies
• APOD: 2014 April 22 - The El Gordo Massive Galaxy Cluster
• APOD: 2011 October 17 - MACS 1206: A Galaxy Cluster Gravitational Lens

... Bisnovatyi-Kogan, Gennady S.; Merafina , Marco; Vaccarelli , Maria Rosaria; Spherically Symmetric Stellar Clusters with Anisotropy and Cutoff Energy in Momentum Distribution. ... We construct numerical models of spherically symmetric Newtonian stellar clusters with anisotropic distribution functions. ... Models of spherically symmetric relativistic stellar clusters with anisotropic distribution functions in relativistic regime are described by using Maxwellian distribution function with energy...

Еще в разделе: (Показать все результаты (>1848) - www.cosmos.ru/ )

• http://www.iki.rssi.ru/comp/2014/Bi-Ko.htm
• INTERBALL Tail Probe flight longterm situation analysis 1995 - 2000

... 319, P L1-L4 (1997). ... Article in PDF format (128 KB) . ... 319, P L9-L12 (1997). ... 319, P L13-L16 (1997). ... 319, P L17-L20 (1997). ... 319, P L21-L24 (1997). ... 319, P L25-L28 (1997). ... 319, P 729-736 (1997). ... 319, P 737-746 (1997). ... 319, P 747-756 (1997). ... 319, P 757-763 (1997). ... 319, P 764-780 (1997). ... 319, P 781-787 (1997). ... 319, P 788-795 (1997). ... Using the Earth orientation parameters to link the Hipparcos and VLBI reference frames . ... helpdesk@link.springer.de ...

Еще в разделе: (Показать все результаты (>16252) - crydee.sai.msu.ru/ )

• Springer LINK:A&A-EE: Table of Contents Volume 317 Number 2 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 323 Number 2 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 328 Number 1 (1997)

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. ...

Еще в разделе: (Показать все результаты (>46) - sed.sao.ru/ )

• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
• astro-ph authors/title/abstract search for 'galaxy evolution ' all years
• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 100) all

The new view on the population of Galactic open clusters A.E.Piskunov1, N.V.Kharchenko2, S.RЖser3, E.Schilbach3, R.-D.Scholz4 1 2 3 4 Institute of Astronomy, Moscow, Russia Main Astronomical ... Observatory, Kiev, Ukraine Astronomisches Rechen-Institut, Heidelberg, Germany Astrophysikalisches Institut Potsdam, Germany What are open clusters and what do they teach us Groups of Population I ... Cluster complexes: OCC-1 = Gould's Belt cluster complex? ...

Еще в разделе: (Показать все результаты (>4) - www.gpad.ac.ru/ )