« previous next »

Author Question: How can an old pulsar have a very short pulsar period, say less than 0.03 seconds? What will be ... (Read 95 times)

mpobi80

  • Hero Member
  • *****
  • Posts: 519
on: Jul 27, 2018
How can an old pulsar have a very short pulsar period, say less than 0.03 seconds?
 
  What will be an ideal response?

Question 2

How does absolute visual magnitude tell us the intrinsic brightness of a star?
 
  What will be an ideal response?


cegalasso

  • Sr. Member
  • ****
  • Posts: 295
Reply #1 on: Jul 27, 2018
Answer to Question 1

It now appears that the speedy pulsar is an old neutron star that has gained mass and rotational energy from a companion in a binary system. Like water hitting a mill wheel, the matter falling on the neutron star has spun it up to that fantastic rate.

Answer to Question 2

The absolute visual magnitude is the apparent visual magnitude a star would have if it were 10 pc away, and is therefore an expression of the intrinsic brightness of a star.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

mpobi80

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 27, 2018
Thanks


cegalasso

  • Sr. Member
  • ****
  • Posts: 295
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

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?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Megazostrodon, the first known mammal of the Triassic period. Megazostrodon, the first known mammal of the Triassic period.
Synodic Period Synodic Period
A Recording of a Pulsar A Recording of a Pulsar
Passive touch on shoulders to end. Hold for 5 to 10 seconds. Passive touch on shoulders to end. Hold for 5 to 10 seconds.
The relationship between the permissible exposure limit (PEL), the short-term exposure limit (STEL), ... The relationship between the permissible exposure limit (PEL), the short-term exposure limit (STEL), ...
Short-wavelength flux is reflected by Earth Short-wavelength flux is reflected by Earth
Video: Causes of Angina

For a complete list of videos, visit our video library