It is currently 18 Aug 2017, 10:27
My Tests

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Astronomers found a large body orbiting close

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
SVP
SVP
User avatar
Joined: 07 Jun 2014
Posts: 1820
GRE 1: 323 Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 38

Kudos [?]: 605 [0], given: 120

Astronomers found a large body orbiting close [#permalink] New post 03 Apr 2016, 06:16
Expert's post
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Astronomers found a large body orbiting close to the star Upsilon Andromedae. The standard theory of planet formation holds that no planet that large could be formed so close to a star, leading to the suggestion that the body is a companion star. A subsequent discovery puts that suggestion in doubt: two other large bodies were found orbiting close to Upsilon Andromedae, and the standard theory of companion stars allows for at most one companion star.

Which of the following, if true, most helps to resolve the status of the orbiting body without casting doubt on the two standard theories mentioned?
A The smaller a planet orbiting a star is, and the farther away it is from the star, the less likely it is to be discovered.
B If a planet’s orbit is disturbed, the planet can be drawn by gravity toward the star it is orbiting.
C The largest of the bodies orbiting Upsilon Andromedae is the farthest away from the star, and the smallest is the nearest.
D It is likely that there are many stars, in addition to Upsilon Andromedae and the Sun, that are orbited by more than one smaller body.
E In most cases of companion stars, the smaller companion is much fainter than the larger star.

[Reveal] Spoiler: OA
B

Practice Questions
Question: 20
Page: 443
[Reveal] Spoiler: OA

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

1 KUDOS received
SVP
SVP
User avatar
Joined: 07 Jun 2014
Posts: 1820
GRE 1: 323 Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 38

Kudos [?]: 605 [1] , given: 120

Re: Astronomers found a large body orbiting close [#permalink] New post 03 Apr 2016, 06:18
1
This post received
KUDOS
Expert's post
Explanation

The passage outlines a conflict between two standard theories — one of planet formation, the other of companion stars — and observations of one large body, and later two others, orbiting close to a star. The question asks what would resolve this conflict without casting doubt on either one of the theories.

Choice B is correct: if, as it asserts, it is possible for a planet to be formed relatively far from a star and later move closer to it, then the observed large bodies found close to Upsilon Andromedae can be planets without casting doubt on the standard theory of planet formation. This explanation also leaves the standard theory of companion stars intact.

Choice A is incorrect because it describes difficulties with discovering a small planet far from a star, not anything pertaining to a large body near a star. Choice C is incorrect as well, since whatever the relative size and position of the three bodies may be, all three appear to be too close according to the standard theories.

Choice D is incorrect because the pervasiveness of stars with multiple orbiting bodies has nothing to do with the status of the large bodies discussed in the passage.

Choice E is similarly irrelevant and thus incorrect: information about the brightness of a star relative to its companion star does not help clarify the status of the large bodies discussed in the passage.
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Re: Astronomers found a large body orbiting close   [#permalink] 03 Apr 2016, 06:18
Display posts from previous: Sort by

Astronomers found a large body orbiting close

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Privacy Policy| Terms and Conditions| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.