Questions tagged [spectroscopy]
Questions about the measurement of light waves whereby the wavelength is classified by its position in the electromagnetic spectrum.
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Why is $g$ tied to the oscillator strength $f$ in $\log{gf}_{\odot}$
The $\log{gf}$ value of an element in a star, where $f$ is the oscillator strength, or probability of transition in an atom, is a scientifically pursued quantity with relation to the model atmosphere ...
user5341
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How to run MOOG on OS X Yosemite
By what process can a user running the latest version of OS X Yosemite execute MOOG with $MOOG in bash?
Due to the removal of 32bit libraries in OS X 10.7+, the ...
user5341
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H-alpha velocity fields of spirals falling into a cluster
What kind of impact would you expect ram pressure stripping / tidal interactions / harassment / interactions with the cluster potential (etc!) to have on the h-alpha velocity fields of infalling ...
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Can stars be observed from space by x-rays, near infrared and radio wavelengths? [closed]
I have a doubt.
Can stars be observed from space by x-rays, near infrared and radio wavelengths?
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How are molecules detected in space?
Recently the sugar glycoaldehyde was detected in a star system 400 light years from Earth. How exactly are molecules detected in space? I am aware that spectroscopy is used to detect them, but I don't ...
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Is it conceivable that the presence of chlorophyll (or similar) could be distinguishable from other chemicals on an exoplanet?
If an Earth-like exoplanet had a sufficiently extensive plant biosphere (i.e large forests, aquatic algal mats etc), is it at all conceivable that scientists could spectroscopically detect the ...
user2449
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Can spectroscopes identify minerals?
Could a spectrometer on a probe or space telescope identify minerals, not only elements and molecules, from the spectral lines? Is there any technology for identifying minerals remotely?
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Any cheap (<100 euro) tools for observing the lines in solar spectrum?
I am now reading the book ''The story of Helium and the Birth of Astrophysics''.
I really want to observe the lines (dark or bright) in the solar spectrum.
Any easily available tools for an amateur?
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Choosing a diffraction grating
I am interested in doing some solar spectroscopy on my own for fun. How do I go about choosing the appropriate diffraction grating?
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How do I calculate the velocity dispersion of a galaxy given an integral field spectrograph?
I couldn't find on the web how to get the velocity dispersion and velocity maps of galaxies from the 3D data cube that I get from the integral field spectrograph.
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How to measure distances to stars by means of spectroscopic parallaxes?
How to measure distances to stars by means of spectroscopic parallaxes on practice?
What is the accuracy of measuring distances using this method compared with distances based on HIPPARCOS ...
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Is it possible to measure galactic red shift using consumer telescope equipment?
I was wondering if it would be possible to measure red shift from distant galaxies using consumer grade telescope equipment and spectroscopy filters. (like this one)
I imagine it would require a ...
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How does one determine the effective temperature of a star from its spectrum?
Determining effective temperature of a star is in general a non-trivial task. Simple reason for this is that we can only study the electromagnetic radiation from a star, but not the temperature ...
- 2,709
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How well can we in principle determine $T_{\textrm{eff}}$ of a star?
This is a question about the basics of astronomy, which I have never happened to see a good discussion for. It is about how well would we be able to measure effective temperature of a star, if we had ...
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