Question

draw and discuss the stafes of stellar evolution from molecular cloud to protostar

draw and discuss the stafes of stellar evolution from molecular cloud to protostar

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

A star begins life as a large cloud of gas. The temperature inside the cloud is low enough for molecules to form. Some of the molecules, such as hydrogen, light up and allow astronomers to see them in space. The Orion Cloud Complex in the Orion system serves as a nearby example of a star in this stage of life.

A Protostar Is a Baby Star

As the gas particles in the molecular cloud run into each other, heat energy is created, which allows a warm clump of molecules to form in the gas cloud. This clump is referred to as a Protostar. Since Protostars are warmer than other material in the molecule cloud, these formations can be seen with infrared vision. Depending on the size of the molecule cloud, several Protostars can form into one cloud.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Distinguish between reflection nebula and emission nebula. What role do they play in stellar evolution?
Distinguish between reflection nebula and emission nebula. What role do they play in stellar evolution?
Begin with a spherical hydrogen molecular cloud (H2) of 8 solar masses, temperature of 10 K,...
Begin with a spherical hydrogen molecular cloud (H2) of 8 solar masses, temperature of 10 K, and number density nH2 of 1010 m-3. (a) Considering that density is mass/unit volume, if the density of the cloud is uniform, show that the radius of the cloud is R = [3 Msun/(pmHnH2)]1/3. Putting in the numbers, what will be the radius of the cloud? Express your answer in AU. (b) Compare to the Jeans length. Will the cloud collapse?
a.) Say we observe two interstellar clouds. One is a molecular hydrogen cloud with a temperature...
a.) Say we observe two interstellar clouds. One is a molecular hydrogen cloud with a temperature of 15 K and n = 1012 m−3, the other is entirely made up of neutral atomic hydrogen whose temperature 120 K and n = 107 m−3. i) Calculate the Jeans mass and radius for each cloud? ii) Comment on whether you expect each cloud collapse. If so, what is the timescale for the collapse?
During the evolution of organisms there are some cases described as DE-EVOLUTION. Discuss two organisms that...
During the evolution of organisms there are some cases described as DE-EVOLUTION. Discuss two organisms that have undergone the evolution. At least 5+ complete sentences. Thank you for your help
Rates of molecular evolution are highly ______ among loci and lineages a. variable b. uniform c....
Rates of molecular evolution are highly ______ among loci and lineages a. variable b. uniform c. predictable d. statistical
MIS Discuss the advantages and disadvantages of cloud computing. (Ch. 14)
MIS Discuss the advantages and disadvantages of cloud computing. (Ch. 14)
Discuss the role of open source software and cloud computing in enterprise applications.
Discuss the role of open source software and cloud computing in enterprise applications.
Draw the molecular orbital diagram shown to determine which of the following is most stable. Draw...
Draw the molecular orbital diagram shown to determine which of the following is most stable. Draw the molecular orbital diagram shown to determine which of the following is most stable. F22+ F2 Ne22+ O22+ F22-
** Need All Answered ** One line of evidence supporting the Neutral Theory of molecular evolution...
** Need All Answered ** One line of evidence supporting the Neutral Theory of molecular evolution is that, in most cases, silent substitution rates are higher than replacement substitution rates.   a) True b) False In the douc langur, a duplication of the RNAse 1 gene resulted in the evolution of an enzyme ( RNAse 1B ) that was six times more efficient. What was the fate of the original copy? a) It became a pseudogene and was fixed out of...
Discuss the evolution of telecommunications, the internet, and the wireless technology and where you feel each...
Discuss the evolution of telecommunications, the internet, and the wireless technology and where you feel each one of them will be 5 years from now.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT