Guest Cosmologist in the House: Roger Blandford

• oversaw the 2010 Decadal Survery of Astronomy and Astrophysics
• will speak on the Accelerating Universe, i.e., cosmic-ray particles like this

Elliptical Galaxies

• Photometry
  lineup:
  • E1: M105
  • E3: NGC 4365, zoom
  • E6: NGC 3377
• Stellar dynamics
  • rotation
  • Faber-Jackson relation (Faber & Jackson 1976)
  • stellar orbits: orbit families, awesome simulation
• Dark matter
• Interstellar medium
  • hot gas: NGC 720, NGC 4649
  • dust

Galaxy Interactions: Scattering, Collisions, and Mergers

• Scattering
• Collisions
  • simulations from UIUC Prof. Susan Lamb
  • observations they fit: Arp 118 and 119
• Accretion
  • Sgr dwarf galaxy: image, collision course, tidal tails
    
  • NCG 474
• Mergers
  • Antennae galaxies: global view; Hubble optical zoom and detail; near-IR; X-ray
  • NGC 6745
  • Collisions in a Galaxy Cluster
  • Stephan's quintet: optical, X-ray
• Ellipticals from Spirals?
  NGC 7252: global structure with 21-cm, Hubble zoom