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Can I read Histogram of Oriented Gradients: a Technique for the Study of Molecular Cloud Formation on EtoBox?
Histogram of Oriented Gradients: a Technique for the Study of Molecular Cloud Formation by J. D. Soler; H. Beuther; M. Rugel; Y. Wang; P. C. Clark; S. C. O. Glover; P. F. Goldsmith; M. Heyer; L. D. Anderson; A. Goodman; Th. Henning; J. Kainulainen; R. S. Klessen; S. N. Longmore; N. M. McClure-Griffiths; K. M. Menten; J. C. Mottram; J. Ott; S. E. Ragan; R. J. Smith; J. S. Urquhart; F. Bigiel; P. Hennebelle; N. Roy; P. Schilke is a Physics and Astronomy article available to read on EtoBox.
What is Histogram of Oriented Gradients: a Technique for the Study of Molecular Cloud Formation about?
We introduce the histogram of oriented gradients (HOG), a tool developed for machine vision that we propose as a new metric for the systematic characterization of spectral line observations of atomic and molecular gas and the study of molecular cloud formation models. In essence, the HOG technique takes as input extended spectral-line observations from two tracers and provides an estimate of their spatial correlation across velocity channels. We characterized HOG using synthetic observations of HI and ^13^CO (__J__ = 1 → 0) emission from numerical simulations of magnetohydrodynamic (MHD) turbulence leading to the formation of molecular gas after the collision of two atomic clouds. We found a significant spatial correlation between the two tracers in velocity channels where __v__~HI~ ≈ __v__~13CO~, almost independent of the orientation of the collision with respect to the line of sight. Subsequently, we used HOG to investigate the spatial correlation of the HI, from The HI/OH/recombination line survey of the inner Milky Way (THOR), and the ^13^CO (__J__ = 1 → 0) emission from the Galactic Ring Survey (GRS), toward the portion of the Galactic plane 33°.75 ≤__l__ ≤ 35°.25 and |__b__|
Who reads Histogram of Oriented Gradients: a Technique for the Study of Molecular Cloud Formation?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- J. D. Soler; H. Beuther; M. Rugel; Y. Wang; P. C. Clark; S. C. O. Glover; P. F. Goldsmith; M. Heyer; L. D. Anderson; A. Goodman; Th. Henning; J. Kainulainen; R. S. Klessen; S. N. Longmore; N. M. McClure-Griffiths; K. M. Menten; J. C. Mottram; J. Ott; S. E. Ragan; R. J. Smith; J. S. Urquhart; F. Bigiel; P. Hennebelle; N. Roy; P. Schilke
- Publisher
- EDP Sciences (ISSN 0004-6361)
- Published
- 2019
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)