Results 11 to 20 of about 13,169 (193)

Magnetic Misalignment of Interstellar Dust Filaments

The 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 J. Cukierman, S. E. Clark, George Halal   +2 more
doaj   +4 more sources

Interstellar filaments and star formation [PDF]

Comptes Rendus. Géoscience, 2017
Recent studies of the nearest star-forming clouds of the Galaxy at submillimeter wavelengths with the Herschel Space Observatory have provided us with unprecedented images of the initial conditions and early phases of the star formation process.
André, Philippe
core   +3 more sources

Physical properties of interstellar filaments [PDF]

Astronomy & Astrophysics, 2012
We analyze the physical parameters of interstellar filaments that we describe by an idealized model of isothermal self-gravitating infinite cylinder in pressure equilibrium with the ambient medium.
André, Arzoumanian, Benson, Bohlin, Bonnor, Bontemps, Boulares, Curry, Curry, Di Francesco, Dobashi, Ebert, Enoch, Fiege, Fischera, Fischera, Fitzpatrick, Foster, Gaida, Glover, Goldsmith, Hanawa, Harvey, Heyer, Hill, Inutsuka, Inutsuka, J. Fischera, Johnstone, Kalberla, Kandori, Kramer, Könyves, Martin, Martin, McCrea, McKee, Men’shchikov, Miville-Deschênes, Myers, Nagasawa, Onishi, Ostriker, P. G. Martin, Pineda, Roy, Schneider, Schneider, Stodólkiewicz   +48 more
core   +3 more sources

On the formation of density filaments in the turbulent interstellar medium [PDF]

The Astrophysical Journal, 2019
This study is motivated by recent observations on ubiquitous interstellar density filaments and guided by modern theories of compressible magnetohydrodynamic (MHD) turbulence. The interstellar turbulence shapes the observed density structures.
Ji, Suoqing, Lazarian, A., Xu, Siyao
core   +4 more sources

Associations between Scattering Screens and Interstellar Medium Filaments

The Astrophysical Journal
Pulsar scintillation can be used to measure small-scale structure in the Galaxy, but little is known about the specific interstellar medium (ISM) features that cause scintillation.
Ashley M. Stock, Marten H. van Kerkwijk
doaj   +3 more sources

Deep Learning for Position Angle Quantification Applied to Interstellar Filaments

The Astronomical Journal
Studying filamentary structures opened a door for understanding the conditions of star formation and interstellar medium properties. Present-day algorithms for identifying filaments and their orientations require careful individual parameterization for ...
Temirkul Umetaliev, Dana Alina, Anel Salmenova   +2 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

Formation and evolution of interstellar filaments [PDF]

Astronomy and Astrophysics, 2013
We investigate the gas velocity dispersions of a sample of filaments recently detected as part of the Herschel Gould Belt Survey in the IC 5146, Aquila, and Polaris interstellar clouds. To measure these velocity dispersions, we use 13CO, C18O, and N2H+ line observations obtained with the IRAM 30 m telescope.
Arzoumanian, D., André, Ph., Peretto, N., Könyves, V.   +3 more
openaire   +5 more sources

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