This topic contains a solution. Click here to go to the answer

Author Question: Why do the present methods of finding extrasolar planets (Doppler measurement and planetary ... (Read 17 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
Why do the present methods of finding extrasolar planets (Doppler measurement and planetary transits) not favor finding solar systems like ours?
 
  What will be an ideal response?

Question 2

A stage 4 protostar may temporarily be thousands of times more luminous than the Sun.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wuly

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

Doppler shifts are greatest for rapidly moving stars, where their planets are moving very close to them and with periods of much less than a year. Only Jovian planets will have the mass needed to exert detectible pulls such as this also.

Answer to Question 2

TRUE




rosent76

  • Member
  • Posts: 516
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

For a complete list of videos, visit our video library