This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Hot Jupiters were a surprise to astronomers. What is the current explanation for their existence? ... (Read 40 times)

fnuegbu

  • Hero Member
  • *****
  • Posts: 539
on: Jul 27, 2018
Hot Jupiters were a surprise to astronomers. What is the current explanation for their existence?
 
  A) Jupiters actually can form close to the host star, since they do not require as much hydrogen compounds and ice as originally thought.
  B) The temperature of the hot Jupiters is highly uncertain, so they might not be as hot as the astronomers say.
  C) Jupiters are supposed to form far away from their host star, and then they migrate closer through gravitational interactions with the protoplanetary disk.
  D) Jupiters form as a companion to the host star, but fail to become actual stars themselves because they are not massive enough.

Question 2

The term observable universe refers to ________.
 
  A) the portion of the universe that is not hidden from view by, for example, being below the horizon
  B) that portion of the universe that we have so far photographed through telescopes
  C) that portion of the universe that we can see in principle, given the current age of the universe
  D) the portion of the universe that can be seen by the naked eye


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

todom5090

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

C


fnuegbu

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


todom5090

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Heliospheric-current-sheet Heliospheric-current-sheet
Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System Current Positions of Known Dwarf Planets and SSSBs in the Outer Solar System
When the exhaust is rich, the PCM applies a negative current into the pump cell. When the exhaust is rich, the PCM applies a negative current into the pump cell.
What is the current flowing through the resistor? What is the current flowing through the resistor?
Find the voltage, current and power for each resistor in the circuit below Find the voltage, current and power for each resistor in the circuit below
Explain how it can be desirable from an intertemporal perspective for a country run a current ... Explain how it can be desirable from an intertemporal perspective for a country run a current ...
Video: Facilitated Diffusion - Glucose transport

For a complete list of videos, visit our video library