Thus, the letters used by Fraunhofer to identify the lines have no relation to chemical symbols nor to the symbols used to designate the spectral types of stars. Today's astronomers use some of the ...

This form lets you check for chararcteristic spectral emission line overlaps. Simply specify the element you would like to check. The range is the absolute value you would like to check above and ...

/project/rc_static/models/aer_lnfl/lnfl_v3.1/lnfl/run_examples/run_example_mw/TAPE3_spectral_lines.dat.0_55.v5.0_fast ...

Implements the superfast method for line spectral estimation [1]. If you use this code, please cite this work. [1] T. L. Hansen, B. H. Fleury and B. D. Rao - "Superfast Line Spectral Estimation", IEEE ...

We explore novel methods of recovering the original spectral line profiles from data obtained by instruments that sample those profiles with an extended or multipeaked spectral transmission profile.

Studying the line spectra produced by hot gases and absorbed by cooler gases allows us to identify the elements in stars. When a gas is very hot, it doesn’t emit all wavelengths of light.

This causes an absorption spectra, as shown below. Because the energy levels are the same, the lines in the emission spectra of an element are in the same position as the lines in the absorption ...

Abstract: This paper proposes a technique for processing signals in which the relevant spectral feature consists of one or more narrow lines which have a nonzero Doppler shift with respect to the ...

This program is based on analyzing the emitted spectral line shape via utilizing facilities of the MatLab7® package to perform this task. This software can perform the following tasks; read the ...

Nor do we find increased reddening in the flat-spectrum sources which could imply a contribution from jet-related synchrotron emission.We reproduce a previously described anticorrelation between the ...