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1
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- Evaluations (official and unofficial)
- Reminders/Assignments
- Finish Quasars and Active Galactic Nuclei
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2
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- Research Homework Update
- Dan finished phase 1, conducting phase 2
- Chris, Sey, and Cassandra primary now
- Jon and Sabrina should see me soon
- Presentation topics
- Galex launched!
- http://www.galex.caltech.edu/
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3
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- Plan for 20 minutes, plus questions.
- Other astronomy faculty are invited.
- Topics:
- Gunn-Peterson Test and Reionization
- Supernovae and the Accelerating Universe
- Weighing Supermassive Black Holes
- The Hubble Deep Fields
- Sub-millimeter (SCUBA) Galaxies
- X-ray Background
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4
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5
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6
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- “Unified Models” explain some of the different classes of AGN,
particularly type 1 and type 2 Seyferts, via orientation.
- For specifics, see the Annual Reviews article by Antonucci, 1993, a
“bishop” in the “Church of Unification.”
- Another nice website:
http://www.mssl.ucl.ac.uk/www_astro/agn/agn_unified.html
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7
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- Very nice and relatively brief review article from “Quasars and
Cosmology” conference by Belinda Wilkes (CfA), a world expert on the
subject:
- http://nedwww.ipac.caltech.edu/level5/Sept01/Wilkes/Wilkes_contents.html
- Must account for physical processes producing prodigious luminosity
from radio wavelengths through the X-ray and even gamma ray regimes.
- Particular features of interest include radio-jets and the radio-quiet
vs. radio-loud dichotomy, the “big blue bump” that produces the
optical/UV energy peak and is thought to arise from an accretion disk,
and the far infrared that represents re-radiation by hot dust.
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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Notes