Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. physics
  3. observations of a galaxy located 20 mpc away give

Observations of a galaxy located 20 Mpc away give us the total flux and the radial...

70.2K

Verified Solution

Question

Physics

Observations of a galaxy located 20 Mpc away give us the totalflux and the radial velocity of stars within circles on the skythat correspond to radii of 100 and 1000 pc.

Within these two regions, the results are as follows:

100 pc radius -- Total flux (Wm-2):  2.1×10-16,  vr(km s-1): 290

1000 pc radius -- Total flux (W m-2):1.5×10-14,  vr (km s-1):250

Use these data to answer the following questions about thegalaxy.

A) Calculate M, L, and M/L, all in solar units, for the regionof the galaxy contained within a 1 kpc radius.

B) Repeat for a 100 pc radius.

C) Based on your answers for the first two parts, do you thinkthere is a supermassive black hole at the center of this galaxy?Estimate the mass of the possible black hole.

Answer & Explanation Solved by verified expert
4.4 Ratings (778 Votes)
1 conversion factorsA for R 1 kpc ie 1000 pc radiiCalculation for    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Psychology
1.2K views

What are nurturance rights? What is an example of how one of these rights may be...

Accounting
1.2K views

Slide 22-12 Raintree Cosmetic Company sells its products to customers on a credit basis. An adjusting entry...

Biology
1.2K views

Which sentence explains how a flood could lead to speciation A It could increase gene...

Physics
1.2K views

Two neutral insulating small spheres are rubbed against each other and are then kept 4...

Physics
1.2K views

Can it be fixed 15 minutes ago of A bullet is fired from a gun...

Basic Math
1.2K views

Balances on March 31 Direct materials used in March Direct labor used in March Overhead...

Accounting
1.2K views

On August 1, year 1, Hampton Construction received a 4.5 percent, 6-month note receivable from...

Accounting
1.2K views

Delaine is a 90% shareholder in a personal service corporation (PSC). The corporation paid Delaine...

Accounting
1.2K views

Research the internet for financial statements on a favorite company. Post the pertinent financial data...

Accounting
1.2K views

The following information relates to Cranes Kitchen Ltd.s inventory transactions during the month of March....

Accounting
1.2K views

3 Sudoku Company issues 28,000 shares of $6 par value common stock in exchange for...

Finance
1.2K views

We Do Bankruptcies is a law firm that specializes in providing advice to firms in...