Besides using the peak wavelength emitted in its blackbody curve, how can a star’s spectrum tell you its temperature?
Q: Suppose a certain star has a temperature of 10,000 Kelvins (K). It will emit light of many different…
A:
Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
A:
Q: Why is the sun orange?
A:
Q: Two stars of the same diameter or observed to have surface temperatures of 4000 Kelvin and 16,000…
A:
Q: What property of a star had a greater effect on the amount of light emitted—its temperature or its…
A: A very small increase in the temperature of star can significantly increase the energy emitted per…
Q: Differentiate between emission spectra and absorption spectra. Write five-five points of each…
A: Emission SpectraAbsorption SpectraProduced when atoms release energyProduced when atoms absorb…
Q: Infrared observations of a star show that the star is most intense at a wavelength of 280 nm. What…
A: Write the expression for Wien’s law. λmaxT=2.898×10-3 m·KT=2.898×10-3 m·Kλmax
Q: How would you find the temperature of a star whose maximum light is emitted at a wavelength of 290…
A: According to Wein's displacement law Where = maximum light wavelength, T = Temperature, b =…
Q: The temperature of a blackbody is 5505 o (a). What is the wavelength of the peak of the blackbody…
A:
Q: Analyzing the line spectrum from a star, you notice that all the hydrogen lines have wavelengths…
A: Given, The H alpha line of the star is 0.8% longer.
Q: Earth tugs the sun around as it orbits, but it affects the radial velocity of the sun by only 0.09…
A:
Q: All of the Sun's energy which we calculated as the luminosity (the rate at which energy is radiated…
A: Given: The distance of Earth from the Sun is r=1.49×1013 cm. Introduction: Luminosity is an absolute…
Q: Could you use an emission spectrum other than that of mercury to calibrate your spectroscope?…
A:
Q: Imagine that you are observing a star and you find the wavelength of peak emission for the star to…
A: In this question we have to find the wavelength of peak emission. Please give positive feedback if…
Q: Why does the spectrum of most stars (including the Sun) show absorption lines in which light is…
A: Solution: Given: Why does the spectrum of most stars (including the Sun) show absorption lines in…
Q: Why does hydrogen, which is abundant in the sun's atmosphere, have relatively weak spectral lines,…
A: Atmos has electrons in different energy levels. Spectral lines are formed when electrons make…
Q: All of the Sun's energy which we calculated as the luminosity (the rate at which energy is radiated…
A: Given: The distance of Earth from the Sun is 1.49×1013 cm. Introduction: Luminosity s a measure of…
Q: What is the difference between the peak wavelength of the stellar spectrum and the peak wavelength…
A: The study of Planck curves and star spectra is vital to solving cosmic mysteries in the large field…
Q: If the atmosphere were twice as thick as it currently is (extending farther into space), what effect…
A: If the atmosphere were twice as thick as it currently is ( extending farther into space ) , the sky…
Q: if gas cloud in the image crosses in front of the star, and the gas cloud and star have different…
A: A gas cloud has a lot of hydrogen in it, which abosrbs the UV light emitted by a star. When UV light…
Q: The figure below shows the spectra of two stars on the same scale (Star A = red line; Star B = green…
A: According to Hubble's law, velocity of recession of star from our earth is directly proportional to…
Q: Why are Balmer lines strong in the spectra of medium-temperature stars and weak in the spectra of…
A: Spectral lines are formed when electrons inside an atom make a transition between energy levels.…
Q: A blue-hot star is about twice as hot as a red-hot star. But the temperatures of the gases in…
A:
Q: What is the wavelength of maximum intensity and the total energy emitted by a celestial object at…
A:
Q: Which of the following statements are TRUE about the Sun's spectrum, which is shown in th image?
A:
Q: Barnard's Star is the 2nd closest star to Sol (~ 6 light years). It is moving toward the Earth with…
A:
Q: Luminosity of the Rigel star in the Orton constellation is 17000 times that of our sun. If the…
A: Power radiated by a black body is given by Stefan–Boltzmann law. It states that the total energy…

Step by step
Solved in 2 steps

- Why do lines in the emission and absorption spectra appear at the same wavelength?When astronomers look at the spectrum of the Sun, they noticed that the light from one edge is slightly blue-shifted, while light from the opposite age is slightly red-shifted. What does this tell you about the Sun?Earth tugs the Sun around as it orbits, but it affects the radial velocity of the sun by only 0.09m/s. How large a shift in wavelength does this cause in the Sun's spectrum at 575 nm?
- If Star A's temperature is 5000 K and Star B's wavelength of peak emission is 5/7 as long as that of Star A, what is the temperature of Star B (in K; don't write the units in the text box)?If you observe a star’s blackbody spectrum twice, once from Earth and once from a space shuttle above Earth’s atmosphere, what will you see? An absorption spectrum from Earth and a continuous spectrum from space An absorption spectrum from space and a continuous spectrum from Earth An absorption spectrum from space and an absorption spectrum with more absorption lines from Earth An absorption spectrum from Earth and an absorption spectrum with more absorption lines from space(Answer don't copy with hand written please)As a star runs out of hydrogen to fuel nuclear fusion in its core, changes within the star usually cause it to leave the main sequence, expanding and cooling as it does so. Would a star with a radius 12 times that of the Sun, but a surface temperature 0.5 times that of the Sun, be more, or less luminous than the Sun? Show and explain your reasoning. You may assume the surface area of a sphere is A = 4πr2.