Spectroscopy is one means of studying stellar behavior. After…

Question Answered step-by-step Spectroscopy is one means of studying stellar behavior. After… Spectroscopy is one means of studying stellar behavior. After dispersing white light (or any part of the electromagnetic spectrum) into a broader spectrum, we can investigate whether objects are emitting or absorbing specific, characteristic wavelengths. In this way, we can investigate the composition of objects far away.However, the Doppler effect may impact the characteristic wavelength.The Doppler effect causes wavelengths emitted by a source to shorten or lengthen based on the movement of the source with respect to the observer; see the ambulances figure below. Note how the ambulance-sourced sound waves change as it approaches and moves away from the observer.If the source (the ambulance below) is moving toward the observer, then the source is getting closer to the wavelengths as they are emitted, shortening them.If the source is moving away from the observer, the wavelength is longer because the source is moving away from the waves as it emits them, stretching the wavelength.In summary, the Doppler effect gives us information about the relative motion of objects in addition to the information that would be collected using spectroscopy, but not absolute distance between them.Image transcription textReset Help This star is moving away from Earth. This star is moving the fastest toward Earth. This star is thefarthest from Earth. This star is also moving toward Earth, but it is not the fastest. This star is moving neithertoward nor away from Earth. This star is the closest to Earth. Label for direction traveling to/from … Show more… Show moreAn important absorption line wavelength for stationary stars occurs at 656 nanometers. However, the wavelength may shift because of the Doppler effect, if the star is moving toward or away from Earth where we are observing it from.Imagine you have just observed four different stars and note the absorption line wavelength. Examine the table below, and label the stars A-D based on the relationship between wavelength and Dopper effect we just reviewed above.Drag the appropriate labels to their respective targets.  Not all labels will be used.    Science Earth Science ESC 1000C Share QuestionEmailCopy link Comments (0)