Why don't we see very many low-mass exoplanets?

What will be an ideal response?


This is an example of selection bias. Our detection methods are more sensitive the larger the planet.

Physics & Space Science

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Which of the following regions was the result of plumes of hot mantle rising in a hot spot within a plate?

A) Alaska's Aleutian Islands B) Japan and the Philippines C) the islands of Hawaii D) the volcano Mount St. Helens E) all of the above

Physics & Space Science

Most stars in the Milky Way's halo are

A) very old. B) found inside molecular clouds. C) very young. D) blue or white in color.

Physics & Space Science

We are measuring the spectra of two hydrogen gas clouds. The laboratory frame wavelength of one hydrogen line is 656.2 nm. Cloud A's emission line wavelength is 660.1 nm and Cloud B's emission line wavelength is 670.1 nm

What can we conclude about these clouds? A) They are both approaching us, and Cloud A is approaching faster than Cloud B. B) They are both receding from us, and Cloud B is receding faster than Cloud A. C) They are both approaching us, and Cloud B is approaching faster than Cloud A. D) They are both receding from us, and Cloud A is receding faster than Cloud B.

Physics & Space Science

A diffraction grating has 6.00 × 103 lines per centimeter ruled on it

What is the angular separation between the second and the third orders on the same side of the central order when the grating is illuminated with a beam of light of wavelength 550 nm? A) 20.5° B) 30.5° C) 40.6° D) 50.5°

Physics & Space Science