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Dense Molecular Clumps with Large Blue Asymmetries: Evidence for Collapse

  • Authors: James M. Jackson, J. Scott Whitaker, Edward Chambers, Robert Simon, Cristian Guevara, David Allingham, Philippa Patterson, Nicholas Killerby-Smith, Jacob Askew, Patricio Sanhueza, Ian W. Stephens, Anika Schmiedeke, Robert Loughnane

James M. Jackson et al 2026 The Astrophysical Journal 998 .

  • Provider: AAS Journals

Caption: Figure 23.

The observed hyperfine intensity ratios and their uncertainties for HCN (1–0) and N2H+ (1–0). The solid line represents the locus of LTE ratios for various optical depths, with optically thin ratios (0.2, 0.6) at the lower left, and optically thick ratios (1.0, 1.0) at the upper right.

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