Astronomy current events question: L1448 IRS3B disk fragmentation processes

Astronomy 210L, fall semester 2016
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!)

Dave Finley, Nicolás Lira T., Charles E. Blue, Richard Hook, and Masaaki Hiramatsu, "Young Stellar System Caught in Act of Forming Close Multiples" (October 26, 2016)
almaobservatory.org/en/press-room/press-releases/1064-young-stellar-system-caught-in-act-of-forming-close-multiples

Radio telescope images of multiple stars forming around a young star in the L1448 IRS3B system provide evidence of __________ processes of star formation.
(A) disk fragmentation.
(B) cloud collision.
(C) cold fusion.
(D) supernovae shockwave.
(E) gravity waves.

Correct answer: (A)

Student responses
Sections 70178, 70186
(A) : 17 students
(B) : 2 students
(C) : 3 students
(D) : 2 students
(E) : 0 students