Yes, the monochromatic flux of a star can change over time. This can be due to a variety of factors, such as changes in the star's luminosity, composition, or distance from the observer. For example, a star may undergo a period of increased or decreased activity, which can affect its ...
In summary, the equation for calculating the lifetime of a star is k*m/l, where k is a constant, m is the mass of the star, and l is the star's luminosity. Using this equation, it can be determined that a star with 24 solar masses and 300,000 times the luminosity of the s...
Astronomers tried to estimate what solar mass could produce the required luminosity to explain liquid water on these planets. They also took into account that with a more massive young Sun, the planets would be closer to the Sun than they are today. And they found that about seven percent ...
SuperBoL is a python package for calculating the bolometric lightcurves of Type II supernovae using observed photometry. Three different methods for calculating the bolometric luminosity are currently included. Those are: Quasi-bolometric: converts observed magnitudes to monochromatic fluxes at the eff...
We have obtained the full 1-200 um spectrum of the low luminosity (36 Lsun)Class I protostar Elias 29 in the Rho Ophiuchi molecular cloud. It provides auni... ACA Boogert,AGGM Tielens,C Ceccarelli,... - 《Astronomy & Astrophysics》 被引量: 87发表: 2000年 Results from Droxo. I. Th...
but we don't know for sure how much mass our Sun's lost over the last four billion years.Astronomers tried to estimate what solar mass could produce the required luminosity to explain liquid water on these planets.They also took into account that with a more massive young Sun, the planets...
If the distance to star X is 620 parsecs, calculate: (a) the radius of star X, in Solar radii; [3] (b) the bolometric luminosity of star X, in units of Solar luminosity. [1] Homework Equations OK so I know if we integrate the given equation between 0 and infintiy we get the ...