'Satellite galaxies' diaporamas de présentation

Astrophysical Constraints on Dark Matter: Warm or Cold ?

699 views • 55 slides

Astronomy 201: Cosmology

Astronomy 201: Cosmology. Prof. Jill Bechtold Graduate TA: Ken Wong Pick up hard copy of syllabus Pick up HW #1 http://boojum.as.arizona.edu/~jill/astro201.html. The Textbooks. 21 st Century Astronomy: Stars and Galaxies by Hester et al. 3 rd Edition.

570 views • 45 slides

Li Abundance of TO stars in globular clusters

Li Abundance of TO stars in globular clusters. Zhixia Shen Luca Pasquini. The Globular Cluster (GC). The same distance, the same age and [Fe/H]:GCs are good testbeds for stellar evolution Nucleosynthesis in old stars Galaxy chemical evolution The age of the universe. Outlines.

554 views • 41 slides

The important role of galaxy groups

The important role of galaxy groups. Michael Balogh Department of Physics and Astronomy University of Waterloo. Galaxy Clusters. A standard picture to motivate environmental effects: Clusters are dominated by bright, red ellipticals. Massive galaxies.

445 views • 37 slides

Dark Matter Substructure in the Simulations and Observed Universe

Dark Matter Substructure in the Simulations and Observed Universe. P. Nurmi. Pure N-body vs. Hydro. Collisionless N-body (DM only) simulations ( accurate solution to an idealized problem) - ? m is WIMP and is distributed as N particles

429 views • 32 slides

Galaxy alignment within cosmic structures

Galaxy alignment within cosmic structures. Weipeng Lin Shanghai Astronomical Observatory, CAS, China linwp@shao.ac.cn. Theory of structure formation. Origin ? the tiny density deviation from primeval quantum field fluctuation, amplified by gravitational instability

429 views • 31 slides

The Milky Way Galaxy and the Formation of Spiral Galaxies

The Milky Way Galaxy and the Formation of Spiral Galaxies. Prof. Ata Sarajedini University of Florida Department of Astronomy. The Milky Way Galaxy - Our Home. Pole-On View. Edge-On View. The Andromeda Galaxy - Our Nearest Large Neighbor. NGC 205. M32.

405 views • 25 slides

VOYAGE

446 views • 23 slides

Xiaohu Yang ( ??? )

The halo model & galaxy formation. Xiaohu Yang ( ??? ). Shanghai Astronomical Observatory Partner group of MPA. Collaborators: H.J. Mo (UMass), F.C. van den Bosch (MPIA), A. Pasquali (MPiA), S. Weinmann (MPA), etc. Dark matter. Galaxies. Connecting Galaxies with dark matter halos.

379 views • 22 slides

Preliminary thoughts on SCUSS 1. Scientific perspectives 2. Suggestions for next steps

Preliminary thoughts on SCUSS 1. Scientific perspectives 2. Suggestions for next steps. ? ? SCUSS team meeting, 2011.6.11, Beijing. Virtues of the u-band for galaxies. Star formation: sensitive to young stellar populations C old gas Indicator of cold gas fraction in galaxies.

310 views • 17 slides

Probing DM Halo Shapes Using Satellite Galaxy Kinematics

Swinburne Galaxy Groups Workshop 24 May 2005. Probing DM Halo Shapes Using Satellite Galaxy Kinematics. Jeremy Bailin (Swinburne). Chris Power, Brad Gibson (Swinburne), Peder Norberg (ETH), Dennis Zaritsky (Arizona). Outline. Predicted Shapes of Dark Matter Halos

317 views • 17 slides

What Does Clustering Tell Us About the Buildup of the Red Sequence

What Does Clustering Tell Us About the Buildup of the Red Sequence. Tinker & Wetzel 2009. Presented by Brandon Patel. Outline. Clustering of Red and Blue Galaxies Determining evolution to Red sequence The data: UDS, DEEP2, COMBO-17 Data spans redshift: 0.4<z<2 The methods for analysis

212 views • 11 slides