'Velocity dispersion' diaporamas de présentation

Cosmology : Cosmic Microwave Background & Large scale structure

680 views • 55 slides

GALAXY PROPERTIES DEPEND ON Galaxy mass Redshift Environment

731 views • 55 slides

Dark Matter and Baryons on Small Spatial Scales

Dark Matter and Baryons on Small Spatial Scales. Rosemary Wyse Johns Hopkins University. Gerry Gilmore, Mark Wilkinson, Vasily Belokurov, John Norris Wyn Evans, Dan Zucker, Andreas Koch, Eva Grebel. ? CDM cosmology extremely successful on large scales.

607 views • 48 slides

Multiobject Spectroscopy

Multiobject Spectroscopy. Jeremy Allington-Smith University of Durham. Contents. Introduction to MOS Multislits and multifibres compared Multifibre systems Atmospheric effects Multislit systems Stability Optical performance Sky subtraction revisited Nod & shuffle, microslits

528 views • 44 slides

Molecular component in the Milky Way

489 views • 40 slides

Celestial Coordinates All extended sources

Galactic Coordinates Point source catalog. 2MASS Data, near-IR. Celestial Coordinates All extended sources. Image of Galactic Center region. = 7.7 arcsec. Radio image, central 3 ly. Center is the red ellipse at the center Called Sgr A*. X-ray image, central 3 ly.

456 views • 34 slides

Weak Lensing Cluster Survey in CFHTLS Wide Fields

421 views • 33 slides

Progress of dark matter research

2nd Korea-China joint seminar on Dark Matter Search. Progress of dark matter research. Xuelei Chen ??? National Astronomical Observatory of China. Nov 24, 2007 Seoul National University. Outline. A brief Review of DM problem Some Cosmological Constraints on non-conventional DM

393 views • 30 slides

WINGS WIde-field Nearby Galaxy-cluster Survey Preliminary Results

From exoplanets to galaxy clusters: science with Astro-WISE T. Valentinuzzi. WINGS WIde-field Nearby Galaxy-cluster Survey Preliminary Results.

388 views • 28 slides

Dark Matter in Dwarf Galaxies

Dark Matter in Dwarf Galaxies. Rosemary Wyse Johns Hopkins University. Gerry Gilmore, Mark Wilkinson, Vasily Belokurov, Sergei Koposov, Matt Walker, John Norris Wyn Evans, Dan Zucker, Andreas Koch, Anna Frebel, David Yong. The Smallest Galaxies as Probes of Dark Matter

419 views • 28 slides

The Heart of Darkness:

The Heart of Darkness:. Josh Simon and Josh Adams Carnegie Observatories. The Dark Matter Density Profiles of Dwarf Galaxies. Cusp/Core Problem. L CDM predicts steep central density profiles. cusp vs. core. Navarro, Frenk, & White (1996). Cusp/Core Problem.

432 views • 25 slides

Scaling relations of spheroids over cosmic time:

Scaling relations of spheroids over cosmic time:. Tommaso Treu (UCSB). Outline. Use scaling laws (e.g. Fundamental Plane, M-sigma relation) to map the cosmic evolution of the three main constituents of spheroids: Stars Dark matter Supermassive black holes. 1: Stars.

387 views • 21 slides

Science with SWIFT.

358 views • 20 slides

Science Case for Multi-object High Resolution Spectroscopy at Keck

Science Case for Multi-object High Resolution Spectroscopy at Keck. R. Michael Rich (UCLA) Judy Cohen (Caltech). Project History. Fall 2007 RMR approaches UCO with plan to implement a multi-object echelle mode on DEIMOS (like MOE on Magellan)

283 views • 17 slides

Sagittarius debris in SDSS stripe 82

Sagittarius debris in SDSS stripe 82. Zhu Ling ( ?? ) & Martin. C. Smith Center for Astrophysics, Tsinghua university KIAA at Peking University. Motivation. Sagittarius dwarf , being accreted by the Milky Way, forms lengthy tidal streams wrap entirely around the Milky way.

300 views • 15 slides

Evolution of massive binary black holes

Evolution of massive binary black holes. Qingjuan Yu Princeton University July 21, 2002. Outline. Introduction Evolution of massive binary black holes (BBHs) Possible observational characteristics of surviving BBHs Summary. Galactic center. (Tremaine et al. 2002). NGC 4258.

334 views • 15 slides

High-Resolution Observations of the Magellanic Stream

Deanna Matthews Dr Lister Staveley-Smith Professor Peter Dyson. La Trobe University ATNF, CSIRO La Trobe University. High-Resolution Observations of the Magellanic Stream. The Magellanic System The Magellanic Stream (MS)

283 views • 14 slides

SDSS Cluster Abundances

SDSS Cluster Abundances. Cluster Collaborators Steve Kent Rita Kim Tim Mcay Erin Sheldon Bob Nichol Chris Miller Tomo Goto Neta Bahcall Daniel Eisenstein Marc Postman Cosmology Collaborators: Martin Makler Steve Kent Scott Dodelson Josh Friemann Tim Mckay Erin Sheldon.

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Analyzing Projection Contamination in Cluster Cosmology Anbo Chen & August E. Evrard

Analyzing Projection Contamination in Cluster Cosmology Anbo Chen & August E. Evrard. Abstract

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DISTRIBUTED DATA MINING ON ASTRONOMY CATALOGS

DISTRIBUTED DATA MINING ON ASTRONOMY CATALOGS. Data Avalanche in Astronomy. Cross Matching : Alignment of Astronomy Catalogs. Astronomy Sky Surveys (SDSS , 2MASS) Observes Galaxies, Quasars, Stars Serendipity Objects Raw Data from Telescope is pre-processed

116 views • 1 slides