a)Define the term “standard candle” as used in cosmology. b)The flux is defined asf(Dlum) = L/4πD^2lum where L is the absolute luminosity and Dlum is the distance to the radiation source (you may assume z ≪ 1). Assume that we have measured the flux to be f = 7.234 10^−23 Wm^−2 and the absolute luminosity is given by L = 3.828 x10^26W. Calculate the luminosity distance D lum to the object in Mpc.
a)Define the term “standard candle” as used in cosmology. b)The flux is defined asf(Dlum) = L/4πD^2lum where L is the absolute luminosity and Dlum is the distance to the radiation source (you may assume z ≪ 1). Assume that we have measured the flux to be f = 7.234 10^−23 Wm^−2 and the absolute luminosity is given by L = 3.828 x10^26W. Calculate the luminosity distance D lum to the object in Mpc.
Related questions
Question
a)Define the term “standard candle” as used in cosmology.
b)The flux is defined asf(Dlum) = L/4πD^2lum
where L is the absolute luminosity and Dlum is the distance to the radiation source (you
may assume z ≪ 1).
Assume that we have measured the flux to be f = 7.234 10^−23 Wm^−2 and the absolute
luminosity is given by L = 3.828 x10^26W. Calculate the luminosity distance D lum to the object
in Mpc.
![f (Dlum)
L
4TD²um](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b765a29-fcb0-4895-9cef-5ef60c256f5b%2F9d48b7d5-18e5-4a3f-af9c-302e9a9abadf%2F95bsdc_processed.png&w=3840&q=75)
Transcribed Image Text:f (Dlum)
L
4TD²um
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)