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

Author Question: How do astronomers know that the Crab Nebula is the remains of a supernova? What will be an ideal ... (Read 29 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
on: Jul 27, 2018
How do astronomers know that the Crab Nebula is the remains of a supernova?
 
  What will be an ideal response?

Question 2

The Milky Way can be seen only from the Northern Hemisphere.
 
  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

peter

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 27, 2018
Answer to Question 1

Both Chinese and Arab records show a guest star in the location that matches the position of the Crab Nebula. Rewinding the motion of the Crab Nebula brings it to the central object at the right time to match the observations of Chinese and Arab astronomers in 1054.

Answer to Question 2

FALSE


madam-professor

  • Member
  • Posts: 584
Reply 2 on: Jul 27, 2018
Gracias!

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

The Core of the Rosette Nebula The Core of the Rosette Nebula
Dimmer Distant Supernova Dimmer Distant Supernova
The site of Gladysvale in South Africa is excavated for Australopithecus remains. The site of Gladysvale in South Africa is excavated for Australopithecus remains.
The explosion of the Maine in Havana harbor, killing 260 men, caused much speculation in the newspap The explosion of the Maine in Havana harbor, killing 260 men, caused much speculation in the newspap
For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately For the circuit in Figure 1, assume ideal diodes. The peak inverse voltage is approximately
Video: The Nerve Impulse

For a complete list of videos, visit our video library