Galaxy Formation and Evolution

Dust: Graphite,

Silicates…..

• Gas:
• Atomic (H, C, O, N….)
• Molecular (CO, HCO+…)

• M83

• Optical

• Carbon Monoxide CO(1-0)

• SEST

• The Antennae Galaxy

• HST Optical image

• HST Optical image + CO

• Optical is not the whole story

• Population of rare but high luminosity sources (1012 Lsun) matches energy output of UV-selected population at high z

• 0.7<Z<2.5

• Z=2.55

• Cluster A1835

• Dust and CO in
• BR1202-0725 at z=4.7

• 1.2 mm Continuum MAMBO

• CO emission PdB & Nobeyama

• A next Generation mm/submm Telescope

• ALMA

• a mm/submm equivalent of VLT, HST, NGST with corresponding high
• sensitivity and angular resolution but unhindered by dust opacity
• a capability to see star-forming galaxies out to the highest redshifts

• Surveys of high redshift galaxies with ALMA
• mm/submm sensitive searches to obscured, star-forming regions
• TODAY: about 200 sources known
• ALMA: many 100,000 sources

• ALMA will detect objects to redshifts as high as 10-20

• Into the Reionization Epoch

• Morphology, Physical & Chemical Properties

• High Angular Resolution & Sensitivity

• SCUBA resolution

• ALMA resolution

• Gravitational Lensing by a Cluster of Galaxies

•