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

Author Question: How can close analysis of the spectra of quasars let us map the whole universe? What will be an ... (Read 81 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
on: Jul 27, 2018
How can close analysis of the spectra of quasars let us map the whole universe?
 
  What will be an ideal response?

Question 2

Compared to a type A0 star, a type A9 star is
 
  A) bluer.
  B) more massive.
  C) cooler.
  D) hotter.
  E) more luminous.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

samiel-sayed

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

In addition to the emission lines made by the quasar, absorption lines reveal gas clouds that lie between us and the quasar. The closer clouds show smaller redshifts, so their distances and structures can also be mapped.

Answer to Question 2

C


luvbio

  • Member
  • Posts: 623
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

The Spectra of Stars with Different Surface Temperatures. The Spectra of Stars with Different Surface Temperatures.
a) Lunge with your legs open to the table. b) Avoid lunging with your legs close to table. a) Lunge with your legs open to the table. b) Avoid lunging with your legs close to table.
Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants
linear programming problem, applying simplex method and sensitivity analysis linear programming problem, applying simplex method and sensitivity analysis
GENETIC ANALYSIS 15.1 (3 of 5) GENETIC ANALYSIS 15.1 (3 of 5)
Parsimony Analysis Parsimony Analysis
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

For a complete list of videos, visit our video library