The Galactic dynamics revealed by the filamentary structure in atomic hydrogen emission | Astronomy & Astrophysics (A&A)

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The Galactic dynamics revealed by the filamentary structure in atomic hydrogen emission | Astronomy & Astrophysics (A&A)
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Astronomers find imprint of the bubbles produced by the explosion of dying stars in our galaxy uniheidelberg AandA_journal

Sun et al. reported the detection of 72 molecular clouds in the CO emission toward the extension of the OSC into the second quadrant. Similar observations for the outer regions toward the outer third and fourth quadrants have not been made. Thus, it is hard at the moment to estimate if the H filaments inherit their elongation and orientation into molecular clouds that they may help form within them, in contrast with the general trend for the clouds traced by CO in the inner Galaxy .

structure in terms of filaments highlights the features in midplane height and dispersion around the midplane height that might be indicative of the local effects perturbing the Galactic disk, such as variations in the potential or the inflow of gas. We found that the scale height of the H emission by a factor of two.

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