Explain how we can determine the temperature of a star without going there.
Q: Suppose a certain star has a temperature of 10,000 Kelvins (K). It will emit light of many different…
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Q: A star has a surface temperature of T = 10,000 K and a radius three times that of the Sun, R = 3R…
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Q: 13) Calculate the luminosity in watts from the absolute magnitude for the given stars: (a) Sun (M =…
A: Luminosity can be defined as an absolute measure of radiated power emitted by a light source over…
Q: Two stars of the same diameter or observed to have surface temperatures of 4000 Kelvin and 16,000…
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Q: Suppose the distribution of light from a star is observed to have maximum intensity at wavelength =…
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Q: Relative Strengths of Absorption Lines lonized Neutral Hydrogen helium helium lonized metals Neutral…
A: in the graph, we have relative strength of absorption lines varies with temperature of spectral…
Q: 4. Calculate the number density of the negative Hydrogen ion (H-), relative to neutral Hydrogen in…
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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: Find the speed for a star in which this line appears at wavelength 122.5 nmnm.
A: Given wavelength = 122.5 nm Hydrogen transition wavelength = 121.6 nm Speed of light is c = 3×108…
Q: A star is observed to be thrice the size of the Sun with temperature of 1.3Tsun. Estimate its…
A: The energy radiated by a star is defined as its luminosity. Luminosity depends on the temperature…
Q: Calculate the surface temperature of the star Betelgeuse whose λmax is 850 nm
A: Wien's Law of Blackbody Radiation λmaxT = a constant = 3 × 106 where λmax = wavelength of radiation…
Q: Radial wave functions. Explain briefly
A: An orbital may be a function called a wave function that describes an electron in an atom. Radial…
Q: You see two variable stars. One has a period of half a day and the other has a period of 100 days.…
A: There are two main types of variable stars – Cepheid and RR Lyrae. The Cepheid stars typically vary…
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: Consider two stars with temperatures of 10,000 and 25,000 Kelvin. 3. Calculate the ratio of atoms in…
A: Given: In this question, the given details are, Consider two stars with temperatures of 10,000 and…
Q: Using Wien's law, what is the wavelength (in nanometers) of the peak of the spectrum of a star which…
A: Solution:-Given thatSurface Temperature (Ts)=2.9×104 K
Q: asked this question already but the answer was wrong and I couldn't follow along with the work so I…
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Q: Besides using the peak wavelength emitted in its blackbody curve, how can a star’s spectrum tell you…
A: Introduction: A blackbody is a theoretical or model body that absorbs all radiation falling on it,…
Q: If our Sun has a temperature of 6000 K and a luminosity of 1 Solar Luminosity, what is the…
A: Temperature of the Sun, Luminosity of the Sun, Temperature of the star,
Q: Imagine that you are observing a star and you find the wavelength of peak emission for the star to…
A: required:)wavelength of peak emission for a new star having temperature one third of original star.
Q: Star A has a temperature of 5,000 K and Star B has temperature of 6,000 K. At what wavelengths (in…
A: Temperature of star A = 5000 k temperature of star B = 6000 k
Q: Plot the spectral emittance the five bodies in our solar system Listed here: Sun (6000 K) Venus (600…
A: The spectral emittance of a body is given by : Bλ(λ,T)=2hc2λ51ehc/λkT−1Here, h is the planck's…
Q: Complete the ray diagram age from
A: Given data: The object distance is: u =- 30 cm The focal length is: f =-10 cm The image distance…
Q: The figure below represents the black body curves for two different stars, C and E. Which one would…
A: Answer is as follows
Q: The above spectrum is most plausibly produced by which kind of object? Select one alternative:
A: Required : Correct choice.
Q: A bright red star is moving towards Earth. Which of the choices best completes the following…
A: Answer : - option D is correct. Explanation It is absorption because it is continuous spectrum,…
Q: If a star has a surface temperature of 20,000 K (2.00 × 104 K), at what wavelength will it radiate…
A: For calculating the wavelength emitted by a hot body consider it as a blackbody. A blackbody is an…
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: Here is the emission spectrum for a hydrogen atom. To the best of your knowledge, how do you think
A: Total answers posted by the expert is: 3759 A sample of hydrogen gas is taken in a tube and…

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- Describe the plysical environment and processes to obtain the emission line spectra and absorption line spectra from the stars. Describe the physical environment and processes to obtain the emission line spectra and absorption line spectra from the stars. haha maintained a high1. Spectral signatures can be described using luminosity values in different spectral regions. UV Blue Green Red NIR Forest 28 29 36 27 56 Water 22 23 19 13 8 Corn 53 58 59 60 71 Pasture 40 39 42 32 62 Assuming these signatures are influenced by atmospheric effects: is it possible to separate the different categories based on the values in this table? Which band (s) are the most useful for distinguishing between the different classes in this table and why?The three most prominent spectral lines of hydrogen are H-α at 656 nm, H-β at 486 nm, and H-γ 434 nm. If we observe an object with H-α at a wavelength of 700 nm, what wavelength will we observe H-β and H-γ? Is the object moving toward or away from us, and how do you know? Suppose we observe another object with H-α at 585 nm. Is this object moving toward or away from us? Is it moving slower or faster than the first object?
- Luminosity of the Rigel star in the Orton constellation is 17000 times that of our sun. If the surface temperature of the sun is 6000 K, calculate the temperature of the star.At rest hydrogen has a spectral line at 149nm. If this line is observed at 144 nm for the star proxima how fast is proxima moving in km/sWe can tell what molecules are in a distant star by: Group of answer choices a)the star’s brightness. b)bringing back a gas sample. c)spectroscopy. d)the star’s distance.