... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

Еще в разделе: (Показать все результаты (>20490) - www.stsci.edu/ )

• Frontier Fields Lensing Models
• Simulation of a Distant Cluster of Normal Galaxies
• Starburst and Galaxy evolution

... Dark Matter Ring Modeled around Galaxy Cluster CL0024+17 . ... It is the relatively weak distortions of the many distant faint blue galaxies all over the image, however, that indicates the existence of the dark matter ring. ... A hypothesis for the formation of the huge dark matter ring holds that it is a transient feature formed when galaxy cluster CL0024+17 collided with another cluster of galaxies about one billion years ago, leaving a ring similar to when a rock is thrown in a pond. ...

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• APOD: 2010 August 24 - Galaxy Cluster Abell 1689 Magnifies the Dark Universe
• APOD: 2009 September 21 - Abell 370: Galaxy Cluster Gravitational Lens
• APOD: 2014 May 5 - Galaxy Cluster Magnifies Distant Supernova

... Still, the detailed information available from clusters of galaxies like Abell 1689 gives hope that one day full solutions will be found that will not only fully reveal the dark matter in clusters , but also reveal the amounts of dark energy in the universe needed to lie along the line of sight to the distant arcs . ... Publications with keywords: abell 1689 - galaxy cluster - dark matter . Publications with words: abell 1689 - galaxy cluster - dark matter . ... The Hercules Cluster of Galaxies . ...

Еще в разделе: (Показать все результаты (>134060) - www.astronet.ru/ )

• XWare > APOD
• Journal "Peremennye Zvezdy"
• Астронет > Dark Matter Ring Modeled around Galaxy Cluster CL0024 17

... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Dynamical models of multiple globular cluster populations around massive galaxies . ... Different techniques have been devised to separate multiple GC populations and perform dynamical analyses. ... Within this project, the PhD candidate will examine mock models of multiple GC populations around massive galaxies, devising `blinded' functional tests and comparing the possible sources of bias in different techniques....

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• Anja Feldmeier-Krause
• Most distant "normal'' galaxy known, G 0102 190 | ESO
• Publications, Paul Bristow

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

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• astro-ph authors/title/abstract search for 'galaxy merging' all years
• Description of SED models

... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

Еще в разделе: (Показать все результаты (>460) - zebu.uoregon.edu/ )

• http://zebu.uoregon.edu/quote.html
• Physics 410/510 Observational Cosmology

The Steady State model of the Universe was proposed in 1948 by Bondi and Gold and by Hoyle. ... At the time the Steady State model was proposed, the Big Bang model was in trouble because the value of the Hubble constant was clearly bigger than the inverse of the age of the Universe. ... Thus the Steady State model has flat spatial sections like the critical density Big Bang model. ... The Steady State model has no adjustable parameters to correct for this error, but the Big Bang does. ...

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• Diffuse Model

... Tonight's Sky . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... space flight . exoplanets . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Why can the Hubble Space Telescope see distant galaxies but not exoplanets? ... D espite Hubble's marvelous ability to image distant galaxies, the telescope isn't able to image extrasolar planets. Get instant access to subscriber content on Astronomy.com! ...

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• Another violent galaxy cluster collision discovered | Astronomy.com
• First detailed look at a normal galaxy in the early universe | Astronomy.com
• Hubble captures first-ever predicted exploding star | Astronomy.com

... Next: Cheating Poisson: A Up: Statistical Analysis Previous: Spatial Models and . ... The spatial distribution of stars in the Local Group dwarf irregular galaxy NGC 6822 has been studied, using recent positions and deep photometry for about 15,000 stars in the galaxy. Based on photometrical data, OB stars and red stars could be studied separately. Spatial statistical tools have been applied to the analysis of the spatial structure. ... Figure: Model selection by the aid of CAIC . ...

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• Clustering Analysis Algorithms and Their Applications to Digital POSS-II
• GIM2D: An IRAF package for the Quantitative Morphology Analysis of Distant

... Abstract: We present an extensive study of the radiative transfer in dusty galaxies based on Monte Carlo simulations. ... We have explored the dependence of A_l on a conspicuous set of quantities (Hubble type, inclination, dust optical thickness, dust distribution and extinction properties) for a large wavelength interval, ranging from 1250A to the K band, thus finally providing a comprehensive atlas of dust extinction in galaxies, which is electronically available. ... S04_MD20[ att , abs ] . ...

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• Galaxy Spectra Calibration - 4
• Cannibal Stars Cause Giant Explosions in Fornax Cluster Galaxy (ESO Press
• Arcetri Star-Formation Group Publications

The LCDM paradigm: successes and challenges on scales of galaxies Anatoly Klypin (NMSU) LCDM · · · · DM profiles, concentrations, .. Clustering of galaxies: P(k) and correlation functions Satellites: abundance, number-density profiles Galaxies and Dark Matter: abundances Dwarfs. ... Springel et al 2008. ... Klypin et al 2010. ... Observations - LCDM: just enough Magellanic Clouds Observations LCDM Vmax > 50 km/s Busha et al 2010 Dark matter profiles: standard LCDM Aquarius simulation. ...

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• Search for distant radio galaxies in SAO
• Publications
• My publications

... 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 (>3862) - hea-www.harvard.edu/ )

• http://hea-www.harvard.edu/~pgreen/SOC/4.html
• Aneta Siemiginowska - Home Page
• Model Spectra for Spectral-Fitting Program

... Dark matter in normal galaxies . ... I will pay attention to such issues as the constraints on dark matter profile, micro-lensing counts from the galactic bar, rotation and the structure of the bar. One of the central issues of the modeling is the exchange of the angular momentum between the disk and the dark matter. ... Our results indicate that in realistic models the exchange of angular momentum between the bar and the dark matter is much smaller than previously estimated. ...

Еще в разделе: (Показать все результаты (>718) - xray.sai.msu.ru/ )

• Model of the Galaxy
• Structure of the Galaxy
• Artificial Galaxy: Full Matrix of Stages

... ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Now, new Australia Telescope observations of the polar ring galaxy NGC 4650a suggest that the dark matter in this galaxy lies in a flattened distribution aligned with the polar ring. ...

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• WALLABY - the ASKAP HI All-Sky Survey
• Evolutionary Paths in Galaxy Morphology
• A Global Model

... Confirm Dark Galaxy Existence . ... New evidence from NASA's Hubble Space Telescope and the Westerbork Synthesis Radio Telescope in the Netherlands has been used to rule out all but one of the ideas put forward to explain the existence of VIRGOHI 21, an intergalactic gas cloud 50 million light-years from the Earth. ... Are there more such dark galaxies out there? ... Credit: R. Minchin / Arecibo Observatory / Cardiff University / Isaac Newton Telescope / Westerbork Synthesis Radio Telescope . ...

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• VIRGOHI 21
• The Evolution of Galaxies through the Neutral Hydrogen Window The Evolution of
• AGES - the Arecibo Galaxy Environment Survey

... Shustov B.M., Wiebe D.S. Dust expelling from the Galaxy ( abstract from the journal ). Astronomy Reports , 1995, 39 , 578-586 [AZh, 72 , 650-659]. Wiebe D.S., Shematovich V.I., Shustov B.M. Chemical and dynamical evolution of protostellar clouds: initial stages of collapse ( abstract from the journal ). ... Shustov B.M., Wiebe D.S., Tutukov A.V. Evolution of disk galaxies and loss of heavy elements into the intracluster medium. ... ApJ (Letters), 1998, 503 , L71-L74 ( astro-ph/9806155 ). ...

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• Future of the Galaxy
• Star Formation History

... Compact Binaries . ... Unlike the Sun, most stars in our Galaxy orbit another star: these systems are called binary stars. Generally it takes many years for the two stars to orbit around each other. ... These binaries are interesting for many reasons. One is that they are predicted to emit lots of gravitational waves. ... Over time as gravitational waves are emitted, the time taken for the two stars to orbit one another changes by a small but measurable amount. ...

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• C.J. Butler, Research Astronomer
• Armagh Observatory
• sfit help file

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

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• Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology
• A unique isolated dwarf spheroidal galaxy KKR25
• Discovery of an isolated dwarf spheroidal galaxy neighboring the Local Group

Evolution of Galaxy Clustering Ray Carlberg University of Toronto, Canada Galaxy clustering is a fundamental statistic whose redshift depen- dence tests the cosmological world model, the density uctuation spectrum and the statistical theory of galaxy formation. Below redshift one the Canadian Network for Observational Cosmology eld galaxy survey nds a slow decline of clustering with increas- ing redshift, most consistent with biasing models in a low density at CDM universe. ...

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• Modelling absorption and emission of radiation by interstellar dust Bojan
• Galaxy Evolution: Cosmological evolution of star formation
• Atmospheric Modelling for ALMA

home education > activities . ... Quick math activity that asks students to calculate scale models of a binary star system with a black hole in it. [h] . ... Students use a radiometer and a light bulb with a dimmer switch to make connections between the temperature, color, and radiation output of a star. ... This demonstration, similar to the above, from the Exploratorium Snack-book of science activities, lets students demonstrate how molecules scatter light and change the colors of the beam. [m,h] . ...

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• ASP: Beacons in the Gloom
• ASP: Big Clusters, Tiny Galaxies
• ASP: Black Holes