Results 21 to 30 of about 884 (199)

Interstellar Filament Detection and Characterization: Methods and Implications for Studies of the Magnetized Interstellar Medium

Galaxies
Filamentary structures are ubiquitous in the interstellar medium and play a key role in the evolution of molecular clouds and star formation. Their morphology and relative orientation with respect to magnetic fields have been widely used as a diagnostic ...
Dana Alina
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

EVIDENCE FOR AN INTERSTELLAR DUST FILAMENT IN THE OUTER HELIOSHEATH [PDF]

The Astrophysical Journal, 2015
Submitted to Astrophysical Journal January 19 ...
P. C. Frisch, B-G Andersson, A. Berdyugin, V. Piirola, H. O. Funsten, A. M. Magalhaes, D. B. Seriacopi, D. J. McComas, N. A. Schwadron, J. D. Slavin, S. J. Wiktorowicz   +10 more
openaire   +2 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

Interstellar Filaments and the Statistics of Galactic Hi [PDF]

The Astrophysical Journal, 1997
This paper presents a statistical explanation of filament formation in the galactic atomic hydrogen. Recently developed technique allows to determine the 3D spectrum of random HI density. We claim that even in the absence of dynamical factors the Gaussian field corresponding to the measured values of the spectrum of HI density should exhibit ...
Lazarian, Alex, Pogosyan, Dmitri
openaire   +2 more sources

Evolution of dust properties in an interstellar filament [PDF]

Astronomy & Astrophysics, 2003
We present submillimetre observations obtained using the balloon-borne experiment PRONAOS/SPM, from 200 to 600 μm with an angular resolution of 2-3.5', of a quiescent dense filament (typically A V ∼ 4) in the Taurus molecular complex. This filament, like many other molecular clouds, presents a deficit in its IRAS I 6 0 μ m /I 1 0 0 μ m flux ...
B. Stepnik, A. Abergel, J.-P. Bernard, F. Boulanger, L. Cambrésy, M. Giard, A. P. Jones, G. Lagache, J.-M. Lamarre, C. Meny, F. Pajot, F. Le Peintre, I. Ristorcelli, G. Serra, J.-P. Torre   +14 more
openaire   +1 more source

A systematic bias in fitting the surface-density profiles of interstellar filaments [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT The surface-density profiles (SDPs) of dense filaments, in particular those traced by dust emission, appear to be well fit with Plummer profiles, i.e. Σ(b) = ΣB + ΣO{1 + [b/wO]2}[1 − p]/2. Here, $\, \Sigma _{{\rm B}}$ is the background surface density;  ΣB + ΣO is the surface density on the filament spine;  b is the impact ...
Whitworth, A. P., Priestley, F. D., Arzoumanian, D.   +2 more
openaire   +4 more sources

Turbulence in the interstellar medium [PDF]

, 2014
Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L., Chian, A. C.-L., G. Kowal, Falgarone, E., E. Falgarone, Falceta-Goncalves, D., Kowal, G., Chian, A., A. C.-L. Chian, D. Falceta-Gonçalves   +9 more
core   +1 more source

Galactic interstellar filaments as probed by LOFAR and Planck [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2015
Abstract Recent Low-Frequency Array (LOFAR) observations at 115–175 MHz of a field at medium Galactic latitudes (centred at the bright quasar 3C196) have shown striking filamentary structures in polarization that extend over more than 4° across the sky.
Zaroubi, S., Jelić, V., de Bruyn, Alexandre, Boulanger, F., Bracco, A., Kooistra, R., Alves, M., Brentjens, M., Ferrière, K., Ghosh, T., Koopmans, L., Levrier, F., Miville-Deschênes, M.-A., Montier, L., Pandey, V., Soler, J.   +15 more
openaire   +5 more sources