What elements account for these absorption lines seen?

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Homework Help Overview

The discussion revolves around the interpretation of absorption lines in spectroscopic images, specifically comparing spectra obtained from a candle flame and an arc flash. Participants are examining the characteristics of these spectra and questioning the presence of absorption lines.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the nature of the observed spectra, discussing whether the thick darker regions are indeed absorption lines or artifacts of the spectrometer. There is also a focus on the clarity of the images and how it might affect the interpretation of the spectra.

Discussion Status

The discussion is ongoing, with participants providing feedback on each other's observations. Some guidance has been offered regarding the need for clearer images to better assess the spectra, but no consensus has been reached on the interpretation of the lines.

Contextual Notes

Participants are navigating potential misunderstandings about the characteristics of continuous spectra versus spectra with absorption lines, as well as the implications of image quality on their analysis.

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Homework Statement
What elements account for these absorption lines seen?..
Relevant Equations
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I can't see any absorption lines at all. If you're thinking about the two big black vertical lines, they are not absorption lines, which would be horizontal (at a particular wavelength) in this picture, not cutting across the spectrum. They are probably something to do with the optics of the spectrometer.
 
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mjc123 said:
I can't see any absorption lines at all. If you're thinking about the two big black vertical lines, they are not absorption lines, which would be horizontal (at a particular wavelength) in this picture, not cutting across the spectrum. They are probably something to do with the optics of the spectrometer.
The first image is a continuous spectrum . The second image you believe is a continuous spectrum as well ? ...Where am I going wrong, the first image is pointed at candle flame the second is pointed at an arc flash ... wouldn’t there be absorption lines present in the second image ? What accounts for the thick darker regions? :/
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Please don't change your original post (except for minor corrections like typos); now my post seems to make no sense.

What thick darker regions? They both look like continuous spectra. Absorption lines would appear as narrow dark vertical lines. Possibly you haven't got a sharp image of your object, so the spectrum is blurred.
 
mjc123 said:
Please don't change your original post (except for minor corrections like typos); now my post seems to make no sense.

What thick darker regions? They both look like continuous spectra. Absorption lines would appear as narrow dark vertical lines. Possibly you haven't got a sharp image of your object, so the spectrum is blurred.
mjc123 said:
Please don't change your original post (except for minor corrections like typos); now my post seems to make no sense.

What thick darker regions? They both look like continuous spectra. Absorption lines would appear as narrow dark vertical lines. Possibly you haven't got a sharp image of your object, so the spectrum is blurred.

Okay noted sorry about that ! I think you’re right I need a better image . Thanks for the help !
 

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