Vega has Mv = 0.5. How large is Mbol? Calculate the luminosity of Vega. Remember that Mbolo = 4.75. If Vega has a mass of 2.7 Mo what is the ratio of L/M for Vega? Compare with the solar value Do it correctly and as soon as possible.
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Vega has Mv = 0.5. How large is Mbol?
Calculate the luminosity of Vega. Remember that Mbolo = 4.75. If Vega has a mass of
2.7 Mo what is the ratio of L/M for Vega? Compare with the solar value
Do it correctly and as soon as possible.
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Solved in 2 steps
- (Astronomy) PSR1913+16 Problem II. Using only the Figure, what are the maximum radial velocities as found from the redshift and blueshift, respectively? Note: redshifts have positive radial velocities values in the figure, whereas blueshifts have negative radial velocity values. (Answer in km/s)Why are Cepheid variables important? O Cepheids variables are pulsating stars whose pulsation periods are directly related to their true luminosities. Therefore they can be used as distance indicators. O Cepheids variables are supermassive stars that are on the verge of becoming supernovae. Therefore they allow us to choose candidates to watch if we hope to observe a supernova. O Cepheid variables are stars that vary in brightness because they harbor a black hole. Therefore, they provide direct evidence for black holes. O Cepheids variables are a type of irregular galaxy, much more common in the early universe. Therefore they help to understand how galaxies formed.What is the average density of a neutron star that has the same mass as the sun but a radius of only 22.95 km? (Pls state the answer in the proper SI unit and without scientific notation)
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