Results 1 to 10 of about 135,058 (169)

Magnetic Misalignment of Interstellar Dust Filaments [PDF]

Astrophysical Journal, 2023
We present evidence for scale-independent misalignment of interstellar dust filaments and magnetic fields. We estimate the misalignment by comparing millimeter-wave dust-polarization measurements from Planck with filamentary structures identified in ...
Ari Cukierman, Susan Clark, George Halal
exaly   +3 more sources

Hierarchical structure of the interstellar molecular clouds and star formation [PDF]

Open Astronomy, 2017
Properties of the hierarchical structures of interstellar molecular clouds are discussed. Particular attention is paid to the statistical correlations between velocity dispersion and size, and between the magnetic field strength and gas density.
Dudorov Alexander E., Khaibrakhmanov Sergey A.   +1 more
doaj   +2 more sources

Galactic star formation with NIKA2 (GASTON): Filament convergence and its link to star formation [PDF]

EPJ Web of Conferences, 2022
In the past decade filaments have been recognised as a major structural element of the interstellar medium, the densest of these filaments hosting the formation of most stars.
Peretto N., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Bacmann A., Beelen A., Benoît A., Berta S., Bing L., Bourrion O., Calvo M., Catalano A., De Petris M., Désert F.-X., Doyle S., Driessen E. F. C., Gomez A., Goupy J., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J.-F., Maury A., Mauskopf P., Mayet F., Monfardini A., Muñoz-Echeverría M., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A., Ristorcelli I., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Shu S., Sievers A., Tucker C., Zylka R.   +47 more
doaj   +1 more source

On the 3D Curvature and Dynamics of the Musca Filament

The Astrophysical Journal, 2023
Filaments are ubiquitous in the interstellar medium, yet their formation and evolution remain the topic of intense debate. In order to obtain a more comprehensive view of the 3D morphology and evolution of the Musca filament, we model the C ^18 O(2-1 ...
Aidan Kaminsky, Lars Bonne, Doris Arzoumanian, Simon Coudé   +3 more
doaj   +1 more source

Mapping the Multiphase Structure of H i in the Low-latitude Intermediate-velocity Arch 1

The Astrophysical Journal, 2023
We have analyzed the thermal and turbulent properties of the low-latitude intermediate-velocity Arch 1 (LLIV1). This was accomplished using archival H i emission and absorption data from two 21 cm line surveys: GHIGLS at 9.′4 resolution and DHIGLS at $1^{
Luka Vujeva, Antoine Marchal, Peter G. Martin, Mukesh Taank   +3 more
doaj   +1 more source

Filamentary Dust Polarization and the Morphology of Neutral Hydrogen Structures

The Astrophysical Journal
Filamentary structures in neutral hydrogen (H i ) emission are well aligned with the interstellar magnetic field, so H i emission morphology can be used to construct templates that strongly correlate with measurements of polarized thermal dust emission ...
George Halal, Susan E. Clark, Ari Cukierman, Dominic Beck, Chao-Lin Kuo   +4 more
doaj   +1 more source

The Role of Magnetic Field in Molecular Cloud Formation and Evolution

Frontiers in Astronomy and Space Sciences, 2019
We review the role that magnetic field may have on the formation and evolution of molecular clouds. After a brief presentation and main assumptions leading to ideal MHD equations, their most important correction, namely the ion-neutral drift is described.
Patrick Hennebelle, Patrick Hennebelle, Shu-ichiro Inutsuka   +2 more
doaj   +1 more source

PHANGS–JWST First Results: The Dust Filament Network of NGC 628 and Its Relation to Star Formation Activity

The Astrophysical Journal Letters, 2023
PHANGS–JWST mid-infrared (MIR) imaging of nearby spiral galaxies has revealed ubiquitous filaments of dust emission in intricate detail. We present a pilot study to systematically map the dust filament network (DFN) at multiple scales between 25 and 400 ...
David A. Thilker, Janice C. Lee, Sinan Deger, Ashley T. Barnes, Frank Bigiel, Médéric Boquien, Yixian Cao, Mélanie Chevance, Daniel A. Dale, Oleg V. Egorov, Simon C. O. Glover, Kathryn Grasha, Jonathan D. Henshaw, Ralf S. Klessen, Eric Koch, J. M. Diederik Kruijssen, Adam K. Leroy, Ryan A. Lessing, Sharon E. Meidt, Francesca Pinna, Miguel Querejeta, Erik Rosolowsky, Karin M. Sandstrom, Eva Schinnerer, Rowan J. Smith, Elizabeth J. Watkins, Thomas G. Williams, Gagandeep S. Anand, Francesco Belfiore, Guillermo A. Blanc, Rupali Chandar, Enrico Congiu, Eric Emsellem, Brent Groves, Kathryn Kreckel, Kirsten L. Larson, Daizhong Liu, Ismael Pessa, Bradley C. Whitmore   +38 more
doaj   +1 more source

An Origin of Narrow Extended Structure in the Interstellar Medium: An Interstellar Contrail Created by a Fast-moving Massive Object

The Astrophysical Journal, 2023
We investigate the thermal condensation caused by a massive object that passes through the interstellar medium with high velocity, and propose a mechanism for creating a filamentary gaseous object, or interstellar contrail.
Kanta Kitajima, Shu-ichiro Inutsuka
doaj   +1 more source

A Pan-galaxy Study of Synthetic Giant Molecular Filaments: A Turbulence-dominated Life Cycle

The Astrophysical Journal Supplement Series
Recent surveys of the Galactic plane have revealed dozens of giant molecular filaments (GMFs), with lengths ranging from tens to hundreds of parsecs, yet their origins and life cycles remain debated. In this work, we analyze over 700 GMFs identified from
Zipeng Hu, Ke Wang, Mark R. Krumholz, Keyun Su   +3 more
doaj   +1 more source