Doppler parameter
The Doppler parameter, or Doppler broadening parameter, usually denoted as , is a parameter commonly used in astrophysics to characterize the width of observed spectral lines of astronomical objects. It is defined as , where is the one-dimensional velocity dispersion . Given this parameter, the velocity distribution of the line-emitting/absorbing atoms and ions proximated by a Gaussian can be rewritten as , where is the probability of the velocity along the line of sight being in the interval . .
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Doppler parameter
The Doppler parameter, or Doppler broadening parameter, usually denoted as , is a parameter commonly used in astrophysics to characterize the width of observed spectral lines of astronomical objects. It is defined as , where is the one-dimensional velocity dispersion . Given this parameter, the velocity distribution of the line-emitting/absorbing atoms and ions proximated by a Gaussian can be rewritten as , where is the probability of the velocity along the line of sight being in the interval . .
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The Doppler parameter, or Dopp ...... h at half maximum), which is .
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The Doppler parameter, or Dopp ...... ight being in the interval . .
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Doppler parameter
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