Astronomy 210
Lecture 25, March 16
Spring 2018
Lecture Notes:
pdf file
Exoplanets: Alien Worlds
Eclipsing planets:
transits
simulated
and observed
A revolution in progress:
NASA Kepler
search fields
and
zoom
transit
examples
results
over time
and
visualized
Star
wobble
(reflex motion)
theory: Sun
wobble
, signature in
spectrum
, velocity
pattern
, you pick the
orbit
observation: measured velocities:
circular
,
eccentric
, and
really
eccentric
orbits
direct imaging:
here
Results to date
General catalogs
here
;
here
and
here
; potentially
habitable
exoplanets
trends
vs heavy element ("metal") content
ditribution of observed
masses and orbits
and the "brown dwarf desert"
Implications
planet swallowing?
confirmed!
Lecture Archive
Brian D. Fields
Last modified: Fri Mar 18 11:26:59 CDT 2011