Astronomy current events question: titanium oxide in exoplanet WASP-19

Astronomy 210L, fall semester 2017
Cuesta College, San Luis Obispo, CA

Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
Elyar Sedaghati, Henri Boffin, and Richard Hook, "ESO's VLT Makes First Detection of Titanium Oxide in an Exoplanet" (September 13, 2017)
The European Southern Observatory's Very Large Telescope discovered various chemical compounds in exoplanet WASP-19b by analyzing:
(A) its orbiting moons.
(B) its cloud pattern colors.
(C) light passing through its atmosphere.
(D) how much heat it emits.
(E) radio emission from molecules.

Correct answer: (C)

Student responses
Sections 70178, 70186
(A) : 0 students
(B) : 5 students
(C) : 23 students
(D) : 14 students
(E) : 6 students

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