Planets detected via the Doppler technique have been mostly A) Jupiter-mass, in
ID: 1729078 • Letter: P
Question
Planets detected via the Doppler technique have been mostlyA) Jupiter-mass, in very close orbits.
B) Earth-mass, in very close orbits.
C) Jupiter-mass, in Jupiter-like orbits.
D) a wide range of masses, in edge-on orbits.
E) Earth-mass, in Earth-like orbits.
A planet's density can be measured by combining
A) Doppler and astrometric observations.
B) any method that measures the gravitational tug of the planet onthe star.
C) Doppler and transit observations.
D) spectral observations of the planet's atmosphere.
E) direct imaging from the new generation of space telescopes.
The composition of a planet can be determined by
A) transit observations.
B) spectra.
C) astrometric measurements.
D) the Doppler technique.
E) all of the above
What are the two main differences between extrasolarplanetary systems discovered to date and our Solar System?
A) extrasolar planets tend to be more massive and dense thanJupiter
B) extrasolar planet orbits tend to be closer and more circularthan in our Solar System
C) extrasolar planet orbits tend to be more eccentric and inclinedthan in our Solar System
D) extrasolar planets tend to be bigger and denser than Jupiter
E) extrasolar planet orbits tend to be closer and more eccentricthan in our Solar System