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

Author Question: Process of Science: How we can test that a so-called standard candle is indeed standard? What ... (Read 46 times)

DelorasTo

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
Process of Science: How we can test that a so-called standard candle is indeed standard?
 
  What will be an ideal response?

Question 2

Process of Science: Give examples of how we build upon our knowledge of stars to measure distances to the edge of the Universe.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

srodz

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

We have to measure both the absolute luminosity of many examples of a standard candle through observations of their apparent brightness and independent measures of their distance. Only once absolute luminosities are fully calibrated in this way, can we then reverse the process and use their apparent brightness to infer distances.

Answer to Question 2

We use established theories for stellar evolution such as Cepheid variables, and the Chandrasekhar limit for white dwarf masses as critical steps on the distance ladder.


DelorasTo

  • Member
  • Posts: 548
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it. In 2008, the U.S. economy suffered a gaping wound as several trillion dollars were ripped out of it.
Monitoring and Following Up on Laboratory Test Results Monitoring and Following Up on Laboratory Test Results
To test the normally open contacts, connect one meter lead to terminal 30 and the other lead to ... To test the normally open contacts, connect one meter lead to terminal 30 and the other lead to ...
Start the fuel injector cleaning process by bringing the vehicle’s engine up to operating ... Start the fuel injector cleaning process by bringing the vehicle’s engine up to operating ...
A Scatterplot of the Test Scores and Average Grades of 10 Students A Scatterplot of the Test Scores and Average Grades of 10 Students
Science Joke Science Joke
Video: Lipid catabolism ( ketogenesis and oxidation of glycerol) and Lipid anabolism (lipogenesis)

For a complete list of videos, visit our video library