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SIMPLIFI—Study of Interstellar Magnetic Polarization: A Legacy Investigation of Filaments. I. Magnetically Guided Accretion onto the DR21 Ridge

  • Authors: Thushara G. S. Pillai, Jens Kauffmann, Juan D. Soler, Mark Heyer, Philip C. Myers, Laura M. Fissel, Dan Clemens, Koji Sugitani, Enrique Lopez-Rodriguez, Fumitaka Nakamura, Andrea Giannetti, Daniel Seifried, Paul F. Goldsmith, Helmut Wiesemeyer, Evangelia Ntormousi, Gabriel Franco, Stefan Reissl, Karl M. Menten

Thushara G. S. Pillai et al 2026 The Astrophysical Journal 1004 .

  • Provider: AAS Journals

Caption: Figure 4.

The left panel depicts the direction of the gravitational acceleration field ﹩{{\boldsymbol{g}}}_{{\rm{pos}}}﹩ in the form of white vectors. The magnitude of ﹩{{\boldsymbol{g}}}_{{\rm{pos}}}﹩ is indicated by dotted contours drawn at accelerations of [0.5, 1, 5, 10, 50] · 10−10 m s−2. The right panel depicts the direction of intensity gradients ﹩{\boldsymbol{\nabla }}I﹩ obtained from HAWC+ data, drawn in locations where the uncertainty in the position angle of ﹩{\boldsymbol{\nabla }}I﹩ is ≤15°. Vectors for ﹩{{\boldsymbol{g}}}_{{\rm{pos}}}﹩ are spaced by 46″. Vectors for ﹩{\boldsymbol{\nabla }}I﹩ are spaced by 32″. Gray contours and the false color background are taken from Figure 1 (right) and indicate Herschel H2 column densities.

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