Figure 7 from INTERSTELLAR H I SHELLS IDENTIFIED IN THE SETHI SURVEY

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INTERSTELLAR H I SHELLS IDENTIFIED IN THE SETHI SURVEY

Authors: Shauna M. Sallmen, Eric J. Korpela, Brooke Bellehumeur, Elizabeth M. Tennyson, Kurt Grunwald, and Cheuk Man Lo

2015 The Astronomical Journal 149 189.

Provider: AAS Journals

Caption: Figure 7.

Raw (dotted) and background-normalized (solid) H I spectra through the center of GSH 054−00+003. The background (dashed) spectrum is from a constant-b region outside the shell, and was used to normalize the raw spectrum. The dashed–dotted vertical lines mark the velocities of the front and rear walls, as well as the minimum H I intensity.

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