Radio Galaxy workshop: so what

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Radio Galaxy workshopso what?

• Ewan Mitchell
• David Whysong Bram Venemans
• Michiel Reuland

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Steady as she goes (Captain Jarvis)
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And thanks to

• Prof Lorentz

• Gerda Filippo
• Admiral Huub

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Worst/best invention of the week

• Worst ETFE
• Eddington-tuned feedback event
• Best
• Jet-inhibited star formation
• (I love it!)

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So, whats new in the last decade?

• BH and bulge masses all new
• Orientation-based unification yes, sure, but
• Birth evolution
• Reionization BH or stars?
• FRI/FRII - not resolved (see later)
• RL/RQ - hidden parameter (see later)
• Starburst - AGN - merger ??
• Gaseous environment
• Identification of emitting components
• Big halos what do they mean?
• Do we understand the alignment effect?
• Clustering properties of populations lots new
• Surveys lots and lots new
• The SKA resolution is (will be) critical

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Did anyone say you could leave?
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Sit down! Thats better.
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Blue herrings and cosmic bananas

• The 1960s were a really, really long time ago
• Phillip Bests thesis, which was a really long
  time ago now
• I feel very, very confident that we have not even
  begun to address that issue yet
• with our complete sample of one
• How would you classify Pictor A?
• Pictor A is in the South.
• Geoff Bicknells simulations are really cool
• These are veery nice results
• and they are all consistent with our
  preconceptions!
• 6C quasars have a more snotty structure
• it walks like a duck, it quacks like a duck,
  its a giant elliptical.

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Quotes of the week

• In every NL object there is a BL object longing
  to get out
• We call this the Clint Eastwood cloud Make my
  day blow me away.
• Ha is older and more settled
• Reconciling things with physics is often very
  nice.
• searching for extra-terrestrial intellegence in
  the US (Texas perhaps?)

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How do we assemble an evolutionary sequence?

• Merger - ULIRG - RG - E (3L) -
  cluster/field
• Can we have a RG/RQ before a ULIRG?
• What are the EROs and how do they fit into this
  scheme? Are the E-EROs and the dusty EROs part of
  the evolutionary sequence?
• When and how often can they be a RG?
• Does the factor 101.5 give the radio duty cycle?
• What does metallicity tell us about ordering the
  sequence?

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How are FRI and FRII different?

• How is the classification made?
• Radio morphology
• Radio power
• Galaxy environment clusters
• But what is the physics?
• Evolution from one to the other?
• Are the FRIIs at z3 different beasts from those
  at z0?

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What are the large gaseous halos?
And the one in B2064827 was THIS big!

• How do we see them?
• X-ray hot
• Lya warm
• HI cool
• CO cold
• What part - if any - is primordial?
• What part is metal enriched and how did it become
  so?
• How do they evolve?
• How can we use them - for mass determination etc.?

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So what is the difference between RQ and RL
sources?

• Is there a good definition of radio-loudness?
• Is it bimodal?
• What about the intermediate sources?
• Is there a hidden variable and what is it?
• Accretion rate - no?
• BH spin?
• Can an event change the state?
• Merger - spin-up/down