How do Doppler shifts of bipolar flows confirm that they are moving away from a central object? -Astronomers observe the spectra is red shifted. -Astronomers observe the spectra is blue shifted.     -Astronomers observe both red and blue shifts in the spectra. -Astronomers do not observe Doppler shifts at all.

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: How would two stars of equal luminosity—one blue and the other red—appear in an image taken through…

A: The two stars have equal luminosity, so their fluxes received on the earth would be the same. In the…

Q: How does the lighthouse model explain pulsars? in two sentences.

A: Pulsars are spinning neutron stars that emit beams of radiation from their magnetic poles

Q: Two stars of the same diameter or observed to have surface temperatures of 4000 Kelvin and 16,000…

A:

Q: if a light source is not spherical, How does this affect calculations of luminosity? Do you expect…

A: Lumisosity is independent of an observer's distance from an object.It is an absolute measure of…

Q: Calculate energy by a black body surface of area when it is maintained at 227° C. liven 5 =…

A: We need to compute-Energy radiated (Q)=?The data given as-Surface area (A)=100 cm2A=10-2…

Q: Russell Diagram Blue or blue-white Red orange Red Superglants Main Sequence Glants Hipho Centour B…

A: Stars are the object which doesn't take any energy to enlighten itself or in simple words stars are…

Q: Interstellar dust is found to be at a temperature of 1000 K. At what wavelength will be the…

A: Interstellar dust is formed from dying stars. During supernova explosions, the outer layer of the…

Q: Problem 7. Assume that a star can be approximated as a black body, using Stefan's Boltzmann Law 1.…

A:

Q: explain how emission and absorption involve semiclassical physics?

A: Introduction: When the atom absorbs a photon from the light of proper frequency, it goes to the…

Q: What would the wavelength of the 21 cm line be for a source moving away from the Earth at 10% the…

A: As per the Doppler effect, the observed wavelength can be found as, Here, λO, λS, v, and c…

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: Soft iron is a material, in which the process of a. magnetization is done easily, but…

A: Soft iron gets easily magnetized as it has high susceptibility, and gets easily demagnetized.

Q: Consider hot Jupiter with a temperature of 3138 K orbiting the star Vega at what wavelength in nm…

A: given-          Temperature of jupiter =3138 K

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: Explain how we can determine the temperature of a star without going there.

A: Stars can be considered a blackbody. The energy released in the core of the star will be absorbed by…

Q: How does luminosity differ from apparent brightness ?

A: The difference between luminosity and apparent brightness depends on distance. Luminosity is an…

Q: 4) Why infrared is preferred to observe the stars around Sgr A*?

A: There are molecules of gas and dust in interstellar space. They are sent out when a star dies.…

Q: What characteristics must a binary star have to be a good candidate for a black hole? Why is each of…

A: The characteristic must a binary star posses for it to be a good candidate for black hole is,  From…

Q: E.E. Barnard contributed to the understanding of our galaxy by________.     all of these are…

A: E.E. Barnard contributed to the understanding of our galaxy by________.

Q: The amount of energy that falls on a given area every second, at the Earth is called:   magnitude.…

A: Energy is incident on Earth surface from Sun .

Q: Explain what is an excitation table?

A: Determine: what is an explanation table. Excitation table is used to find the sets of input based on…

Q: Question A3 The figure below shows the Hertzsprung-Russell diagram (HRD) for two star clusters using…

A: Step-by-Step Analysis of Star Cluster Ages using HRDsHere's a breakdown of how to determine the age…

Q: 5. A star whose temperature is 8000 K has a peak wavelength of 362.5 nm, according to Wien's Law. If…

A: The peak wavelength by observer on earth = 362.365nm.Your required explanation is given below. Thank…

Q: The Andromeda galaxy is slowly moving towards the Milky Way. What will be the shift of The averag…

A: According to the doppler shifting if we move towards any source object apparent  frequency always…

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: When white light travels through glass, the phase velocity of each wavelength depends on the…

A: The phase velocity of a monochromatic wave of a particular wavelength λ is expressed as,

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 above spectrum is most plausibly produced by which kind of object? Select one alternative:

A: Required :  Correct choice.

Q: In this problem, we derive the mass luminosity relation. There are three equations to be looked at.…

A:

Q: Can you give examples for blackbodies? Is the sun a blackbody? Is the moon a blackbody? Is the LED a…

A: BLACK BODY; Definition A black body is a  type of a body ore we can say a type of a surface that can…

Q: A human eye is most sensitive to that wavelength( Am) at which the energy distribution of solar…

A: Given, (a) Wien's displacement constant,b=0.29cmKTemperature,T=5800K According to the Wien's Law the…

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: Using Wien's Law for two black body objects with a temperature of 1000 K (fire) and 290 K…

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Q: ive an example of a wavelength to distance ratio (λ/d) and describe its origin, meaning, and…

A: To give an example of a wavelength to distance ratio (λ/d)

Q: The gas and dust particles between a star and the earth scatter the star’slight more strongly in the…

A: This is a question from astrophysics. This is absolutely true that "The gas and dust particles…

Q: Explain what type of ‘mass spectra’ is generated in GC-MS.

A: There are different types of mass spectra present in the experimental procedures for finding traces…

Q: The redshift measurements of spectra from magnesium and iron are important in understanding distant…

A: Given, For Kα (n=2)For Lα(n=3)Rydberg Constant,R∞=1.097373×107/m We know the Moseley equation, For K…

Q: Determine the maximum Doppler shift for a mobile moving at 50 and 100 km/h at frequencies of 1 GHz…

A: Let ∆v1 and ∆v2 denote the difference in the speed of the mobile and observer. The relative speed of…

Q: Barnard's Star is the 2nd closest star to Sol (~ 6 light years). It is moving toward the Earth with…

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Q: Identify the regions and lines on a typical P-T diagram.

A: