« previous next »

Author Question: Explain why the Crab Nebula cannot involve a rapidly rotating white dwarf star. What will be an ... (Read 62 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
Explain why the Crab Nebula cannot involve a rapidly rotating white dwarf star.
 
  What will be an ideal response?

Question 2

The diffraction-limited resolution of a 10-meter telescope is about 0.01 arcsecond for visible light.
 
  Would you expect the actual angular resolution of a Keck 10-meter telescope in Hawaii to be better than, equal to, or worse than 0.01 arcsecond? Explain.


huda

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 27, 2018
Answer to Question 1

The pulsar in the Crab Nebula rotates 30 times a second. A white dwarf rotating this quickly will literally fly apart, its gravity unable to withstand the enormous effects of rotation.

Answer to Question 2

It would be worse than 0.01 arcsecond because of the distortion caused by atmospheric turbulence.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
A Russian dwarf hamster A Russian dwarf hamster
Proper Motion of Barnard’s Star Proper Motion of Barnard’s Star
The Core of the Rosette Nebula The Core of the Rosette Nebula
Rotating a matrix along the x-axis Rotating a matrix along the x-axis
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library