Question: Why are interstellar absorption lines so much thinner than stellar absorption lines? Most interstellar gas is at a lower temperature than that of stellar atmospheres

Why are interstellar absorption lines so much thinner than stellar absorption lines?

Most interstellar gas is at a lower temperature than that of stellar atmospheres and the density of interstellar gas is less than that of stellar atmospheres.The interstellar medium contains many chemical elements not found in stars.

Most interstellar gas is at a lower temperature than that of stellar atmospheres.The density of interstellar gas is less than that of stellar atmospheres.all of the above

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

Name: Spectroscopy and Creating your Own H-R Diagram Spectroscopy Spectral lines (particularly absorption lines) are a key way for astronomers to measure the temperature of a star as well as...

15 2 points How would the density inside a cold cloud (T = 10 K) compare with the density of the ultra-hot interstellar gas (T = 10 K) if they were in pressure equilibrium? (It takes a large cloud to...

There is a gaseous interstellar cloud in the constellation Ophiuchus that is illuminated from behind by the star Ophiuci. Analysis of the electronic-vibrational-rotational absorption lines obtained...

Question 9 1 pts You are observing a binary star system and obtain a series of spectra of the light from the two stars. In this spectrum, most of the absorption lines shift back and forth as expected...

Lab 07: Stars and spectra: Learning about color, temperature, and spectral class with data from the Sloan Digital Sky Survey In this lab activity you will explore actual spectra for some stars that...

Laboratory 8 - Hubble's Law Name: Background In 1929 the astronomer Edwin Hubble measured the distances to many galaxies. He also obtained spectra for these galaxies. From the spectra he calculated...

2. Types of Spectra a. Light from a star with a peak wavelength 450 nm passes through a cloud of hydrogen and helium. Draw the plot that you expect your instruments to measure from this light. 1:)....

solve these pls & thank u sooo much What events are occurring in the atoms of stars that result in the absorption lines that are seen in their spectra? Choose one: The nuclei of the atoms are...

Absorption pattern for Hydrogen 1.0 F Intensity 0.5 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 Absorption pattern for Helium 1.0 Intensity 0.5 400 420 440 460 480 500 520 540 560...

Problems 18.6 Part A A star of apparent magnitude 13.0 lies 400 pc from Earth. If interstellar absorption results in an average extinction of 2.2 mag/kpc, calculate the star's absolute magnitude and...

The following independent cases describe facts concerning the ownership of racing bicycles. (a) Piero Niccolo, winner of the 2009 MilanSan Remo cycling classic, purchased a new Fierro bicycle for...

The equation of motion of a SHM oscillator is x = (0.50m) sin(2f)t, where x is in meters and t is in seconds. If the position of the oscillator is at x = 0.25 m at t = 0.25s, what is the frequency of...

Stock, production and sales data for the single product of Industrial Detergents Ltd . are given in the following. \ table [ [ , Period 1 , Period 2 , Period 3 , Period 4 ] , [ Production ( litres )...

Part 4: Property, Plant and Equipment Assets Caribou Inc. acquired a new roller press on March 29, 2015 for $160,000. The machine has a 5-year life and a residual value of $40,000. Caribou's year end...