Galaxy clusters with Alma
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Transcript of Galaxy clusters with Alma
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 UniverseGravitational LensesQuasar Absorption LinesSunyaev-Zeldovich Effect with ALMAGas in Galactic NucleiThe AGN EngineGalaxies in the Local UniverseALMA an the Magellanic CloudsGamma Ray Bursts
Outline
What are galaxy clusters? How do cluster galaxies interact with
their environment?ICM - ISM interactionTidal interactionMergers
How will ALMA allow us to investigate this?
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
dlTnI eeSZE dlTnI eerayx2/12
(Kitayama et al., 2004)
Conclutions
Galaxies interact with each other and the ICM in clusters through ram-pressure 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, 17-
28, 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