Astronomy current events question: discovery of OGLE-2016-BLG-1190Lb

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!)

Tomasz Nowakowski, "Extremely Massive Exoplanet Discovered in the Milky Way's Bulge" (November 6, 2017)
phys.org/news/2017-11-extremely-massive-exoplanet-milky-bulge.html

The extremely massive planet OGLE-2016-BLG-1190Lb orbiting a white dwarf was discovered by NASA's Spitzer Space Telescope observations of how their __________ distorted light from a background star.
(A) magnetic fields.
(B) deuterium fusion.
(C) pulsar beams.
(D) nova explosions.
(E) gravity.

Correct answer: (E)

Student responses
Sections 70178, 70186
(A) : 9 students
(B) : 9 students
(C) : 5 students
(D) : 2 students
(E) : 14 students