GALAXY CLUSTERS WITH ALMA Kelley Liebst AST 591

GALAXY CLUSTERS WITH ALMA Kelley Liebst AST 591 School of Earth and Space Exploration Arizona State University

ALMA Design Reference Plan � Galaxies and Cosmology � Star and Planet Formation � Stars and Their Evolution � Solar System � Mm VLBI

ALMA Design Reference Plan � Galaxies and Cosmology �The High-Redshift Universe �Gravitational Lenses �Quasar Absorption Lines �Sunyaev-Zeldovich Effect with ALMA �Gas in Galactic Nuclei �The AGN Engine �Galaxies in the Local Universe �ALMA an the Magellanic Clouds �Gamma Ray Bursts

Outline � What are galaxy clusters? � How do cluster galaxies interact with their environment? �ICM - ISM interaction �Tidal interaction �Mergers � How this? will ALMA allow us to investigate

Galaxy Clusters Image: <http: //www. astro. sunysb. edu/fwalter/AST 101/galaxies. html>

Galaxy Clusters Image: <chandra. harvard. edu/photo/2008/a 1689>

Galaxy Clusters Image: Icke, 2004

ICM – ISM Interaction Image: van Gorkom, 2004

ICM – ISM Interaction Image: van Gorkom, 2004

ICM – ISM Interaction Image: van Gorkom, 2004

ICM – ISM Interaction Image: van Gorkom, 2004

ICM – ISM Interaction Image: Moore, 2004

Tidal Interactions � Tidal perturbation parameter (Varela, 2004)

Tidal Interactions Image: Icke, 1985

Mergers � It’s time for Youtube!

Mergers Without global tidal interaction Images: Mihos, 2004 With global tidal interaction

Galaxy Clusters with ALMA � Galaxies and Cosmology �Sunyaev-Zeldovich Effect with ALMA ○ Imaging galaxy cluster mergers via the Sunyaev-Zeldovich effect ○ Sunyaev-Zeldovich Effect of Galaxy Clusters at High Redshift

Galaxy Clusters with ALMA � Sunyaev-Zeldovich Effect = the inverse Compton scattering of the cosmic microwave background by hot elections (Kitayama et al. , 2004) Images: SZA at Chicago

Galaxy Clusters with ALMA � ALMA provides good resolution at wavelengths relevant to SZE (Kitayama et al. , 2004)

Galaxy Clusters with ALMA Image: Kitayama et al. , 2004

Conclutions � Galaxies interact with each other and the ICM in clusters through rampressure stripping of the ISM, tidal interactions with other galaxies, and mergers with other galaxies � ALMA can probe the history of interactions in a cluster through the Sunyaev-Zuldovich Effect

References � � � � Icke, V. , A&A 144, 115 -123, 1985 Kitayama, T. , et al. , Astron. Soc. Japan 56, 1728, 2004 Mihos, J. C. , Carnegie Observatories Astrophysics Series, Vol. 3, 2004 Moore, B. , Carnegie Observatories Astrophysics Series, Vol. 3, 2004 SZA at Chicago, <http: //astro. uchicago. edu/sza/primer. html> van Gorkom, J. H. , Carnegie Observatories Astrophysics Series, Vol. 3, 2004 Varela, J. , et al. , A&A 420, 873 -879, 2004