... The basics · · · · Source galaxy at Observed image at Instead of I(), we see I'[()] We care about the Jacobian: = convergence; = shear Definitions = projected surface ... (axisymmetric) Definitions = projected surface density contrast (axisymmetric) = shear (comoving) Sloan Digital Sky Survey ( SDSS ) Imaging, spectroscopy over ~ 1/4 of the sky Imaging in 5 passbands (ugriz) (from http://www. sdss .org/) Our approach: Reglens Lenses: SDSS spectroscopic sample (~4x105 ...

Еще в разделе: (Показать все результаты (>14481) - www.stsci.edu/ )

• http://www.stsci.edu/stsci/meetings/low-lum-galaxies/program.html
• Our group
• SINGS: The SIRTF Nearby Galaxies Survey

... Contacts . 2012: . ... We refined the fundamental parameters of the components, the orbital periods, and the conditions of photospheric heating of the secondary component by the ultraviolet radiation of the hot component. ... The observations of the star clusters associated with ultra-luminous x-ray sources (ULXs) in four galaxies on the 6-meter and VLT telescopes have shown that all the ULXs are located within 200pc of very young star clusters (younger than 5 million years). ... Archive . ...

Еще в разделе: (Показать все результаты (>1344) - mavr.sao.ru/ )

• Catalog of the LV Galaxies
• articles_flera_en
• articles_alex_01

... 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...

Еще в разделе: (Показать все результаты (>66665) - www.eso.org/ )

• IAU Symp317 Scientific Program
• ESO - Baryons at Low Densities: the Stellar Halos around Galaxies
• ESO - Thesis Topic: Dynamical models of multiple globular cluster populations

... 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. ...

Еще в разделе: (Показать все результаты (>8268) - www.sai.msu.su/ )

• APOD: January 4, 1999 - Ring Around the Cluster
• APOD: 2011 October 17 - MACS 1206: A Galaxy Cluster Gravitational Lens
• APOD: January 22, 1997 - Galaxy Cluster A2199

Origin of the old globular cluster system in the LMC = NGC 1850 Z=10 GC/halo formation Z=2 disk formation Z=0.4 interaction with SMC .. GC) (The LMC) (The Rosetta Stone) Kenji Bekki (UNSW, Australia) GCs and Globular cluster systems (GCSs) < GC:47 Tuc GCS properties: Space distributions , Kinematics, Metallicity.. ... A specific question: Origin of the observed kinematical differences between the stellar halo and the old GCS in the LMC. ... 2006) The old stellar halo properties in the LMC. ...

Еще в разделе: (Показать все результаты (>8472) - www.atnf.csiro.au/ )

• WALLABY - the ASKAP HI All-Sky Survey
• Programme - Abstract
• Properties at other wavelengths

... General information . ... Staff . ... Galaxies, AGN, Cosmology . ... SECCO1: an "almost-dark" dwarf galaxy . Models of galaxy formation and evolution within the Ю?-CDM paradigm can be tested against their predictions on the number and properties of dwarf galaxies and in particular stellar systems highly dominated by dark matter. ... The authors argue that the third possibility is the most likely one and hence SECCO1 would be a new faint dwarf galaxy residing in the Virgo cluster of galaxies. ...

Еще в разделе: (Показать все результаты (>7434) - www.arcetri.astro.it/ )

• A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope
• Arcetri Open Time
• Ionized outflows in z~2.4 quasar host galaxies

... Research . ... I aim to understand the variety of processes that have driven galaxy formation and mass assembly across cosmological history via the resolved (star-by-star) study of nearby systems - in particular the Milky Way and Andromeda (especially their stellar halos and globular cluster populations), the Magellanic Clouds, and the myriad of smaller dwarfs that inhabit the "Local Group".б  . ... Globular clusters are fascinating objects in their own right. ...

Еще в разделе: (Показать все результаты (>727) - www.mso.anu.edu.au/ )

• GSAOI Dwarf Galaxies Science Page
• GSAOI Disk Galaxies Science Page
• How far away is Virgo?

Neutral Hydrogen and Star Formation in the Coma-A1367 Supercluster. Luca Cortese School of Physics & Astronomy ­ Cardiff University Outline of the Project GOAL: Gain additional insights on the mechanisms and timescales which regulates the migration of galaxies (L>109 L ) from the blue to the red sequence by combining UV and HI. ... By combining HI and UV data we can select galaxies at different stages of their transition between the blue and the red sequence! ... 2005) But...the TIR/FUV vs. ...

Еще в разделе: (Показать все результаты (>3445) - www.naic.edu/ )

• Ionization and the Detection of Low HI Mass Galaxies
• The Search for HVCs in Other Galaxies
• Heiles Symposium Presentations

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

Еще в разделе: (Показать все результаты (>2669) - www.sao.ru/ )

• The very metal-poor local dwarf galaxies
• A VLA Survey of Rich Clusters of Galaxies I.
• The statistical properties of HSS BCGs

... Dark Matter Ring Modeled around Galaxy Cluster CL0024 17 . ... A new observation of gravitationally magnified faint galaxies far in the distance behind a massive cluster of galaxies is shedding new dark on the subject. ... 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. ...

Еще в разделе: (Показать все результаты (>118412) - www.astronet.ru/ )

• Астронет > Dark Matter Ring Modeled around Galaxy Cluster CL0024 17
• Ring Around the Cluster
• XWare > APOD

The fundamental properties of early-type galaxies in the Coma Cluster S.A.W. Moore et al. University of Durham, U.K. Co-authors: Lucey, J.R.; Colless, M.; Kuntschner, H.; Bower, R.; Davies, R.L. Early-type galaxies in clusters exhibit remarkably tight correlations between their global properties, e.g. the colour- magnitude relation, the Mg2 - relation and the Fundamental Plane. ... In addition, these data provide a baseline for evolutionary studies of distant clusters. ...

Еще в разделе: (Показать все результаты (>1381) - www.mrao.cam.ac.uk/ )

• http://www.mrao.cam.ac.uk/secure/amiday/talks/AMI_Day_Presentation_hogan.pdf
• Galaxy Evolution: Cosmological evolution of star formation
• PPT Slide

This huge elliptical galaxy NGC 5128 (Centaurus A) is the closest such galaxy to Earth, at a distance of about 12 million light-years. Observations with ESO s Very Large Telescope in Chile have discovered a new class of dark globular star clusters around this galaxy. ... Normal globulars are marked in blue and globulars showing similar properties to dwarf galaxies are in green. The dark globulars appear very similar to other globulars around this galaxy but contain much more mass. ...

Еще в разделе: (Показать все результаты (>7007) - www.astronomy.com/ )

• Dark matter affects architecture of galaxy clusters | Astronomy.com
• When galaxy clusters collide | Astronomy.com
• A star cluster hides star clusters | Astronomy.com

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 . ...

Еще в разделе: (Показать все результаты (>406) - zebu.uoregon.edu/ )

• Astronomy HyperText Book
• Astro-2 and the UIT Experiment
• Evidence for Dark Matter

Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic . It is now evident that observed interstellar extinction cannot be explain using particles of only one kind. ... The intensity of radiation after passing a dust cloud is equal to . ... The interstellar extinction is . ... Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic root 2003-04-09 ...

Еще в разделе: (Показать все результаты (>397) - www.astro.spbu.ru/ )

• Vladimir P. Reshetnikov's Home Page
• Database of Optical Properties -- Level: welcome
• Database of Optical Properties

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...

Еще в разделе: (Показать все результаты (>50) - sn.sai.msu.ru/ )

... 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 (>3562) - hea-www.harvard.edu/ )

• http://hea-www.harvard.edu/~pgreen/SOC/4.html
• The AstroStat Slog principle component analysis
• SAO Summer Intern Program Projects, 2004

Results from 6m telescope observations of globular clusters in dwarf galaxies Sharina M. We consider properties of globular clusters in dwarf galaxies observed with the multi-slit unit of the SCORPIO spectrograph at the SAO 6m telescope. ... Studying GCs in dwarf galaxies at the faintest end of the galaxy luminosity function provides valuable information for a better understanding of galaxy evolution and evolutionary connection between globular clusters and nuclei of galaxies. ...

Еще в разделе: (Показать все результаты (>824) - jet.sao.ru/ )

• http://mavr.sao.ru/Doc-k8/Science/seminar/Klypin/LCDMissues.pdf
• http://mavr.sao.ru/hq/katya/CosmosPh/en/Abstract_Sonbas_2.txt
• Fabry-Perot Interferometer: Gallery Old

... 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 . ...

Еще в разделе: (Показать все результаты (>213) - www.stecf.org/ )

• The Structure and Composition of High Redshift Radio Galaxies

Find Similar Abstracts . ... Large scale distribution of matter - Galaxies and their clustering properties . ... 17-21, 1986 (A87-52256 23-90). ... 00/1986 . ... The distribution of galaxies in space is characterized by the existence of large inhomogeneities - the Large Scale Structure of the universe (LSS). ... 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 ...

Еще в разделе: (Показать все результаты (>568) - xray.sai.msu.ru/ )

• Be/X-ray binaries and candidates
• Structure of the Galaxy
• Cosmic Rays and Evolution of Binary Systems

... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...

Еще в разделе: (Показать все результаты (>1642) - www.adass.org/ )

• Spatial Structure of NGC 6822: An Example for Statistical Modeling of
• Mapping the Jagiellonian Field of Galaxies
• Clustering Analysis Algorithms and Their Applications to Digital POSS-II