Question
In: Physics
Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of...
Imagine that you have obtained spectra for several galaxies and have measured the observed wavelength of a hydrogen emission line that has a rest wavelength of 656.3 nanometers. Here are your results:
Galaxy 1: Observed wavelength of hydrogen line is 658.7 nanometers
Galaxy 2: Observed wavelength of hydrogen line is 664.2 nanometers.
Galaxy 3: Observed wavelength of hydrogen line is 683.6 nanometers.
Part D: Estimate the distance to each galaxy from Hubble's law. Assume that H0=22km/s/Mly.
Express your answers using two significant figures. Enter your answers numerically separated by commas.
(dgalaxy1, dgalaxy2, dgalaxy3 = *Answer* Mly)
Solutions
genius_generous answered 3 months agoRelated Solutions
Suppose that you have obtained spectra of several galaxies and have measured the observed wavelength of...
Suppose that you have obtained spectra of several galaxies and
have measured the observed wavelength of the H-alpha line (rest
wavelength = 656.3nm) to be:
Galaxy 1: 659 nm. Galaxy 2: 666.5 nm. Galaxy 3: 676.6 nm.
10. [4pt] Calculate the redshift, z, for each of these
galaxies.
11. [4pt] Calculate the radial velocity of each of these
galaxies.
12. [4pt] Assuming a Hubble Constant of 69.6 km/s/Mpc, cal-
culate the distance to each of these galaxies (answer in Mpc).
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