Results 21 to 30 of about 13,169 (193)

Characterizing interstellar filaments withHerschelin IC 5146 [PDF]

Astronomy & Astrophysics, 2011
We provide a first look at the results of the Herschel Gould Belt survey toward the IC5146 molecular cloud and present a preliminary analysis of the filamentary structure in this region. The column density map, derived from our 70-500 micron Herschel data, reveals a complex network of filaments, and confirms that these filaments are the main birth ...
Arzoumanian, D., André, Ph., Didelon, P., Konyves, V., Schneider, N., Men'Shchikov, A., Sousbie, T., Zavagno, Annie, Bontemps, Sylvain, Di Francesco, J., Griffin, M., Hennemann, M., Hill1, T., Kirk, J., Martin, P., Minier, V., Molinari, S., Motte, F., Peretto, N., Pezzuto, S., Spinoglio, L., Ward-Thompson, D., White, G., Wilson, C. D.   +23 more
openaire   +4 more sources

A multi-scale filament extraction method: getfilaments [PDF]

, 2013
Far-infrared imaging surveys of Galactic star-forming regions with Herschel have shown that a substantial part of the cold interstellar medium appears as a fascinating web of omnipresent filamentary structures.
Men'shchikov, A.
core   +18 more sources

Profiles of interstellar cloud filaments [PDF]

Astronomy & Astrophysics, 2012
Sub-millimetre observations suggest that the filaments of interstellar clouds have rather uniform widths and can be described with the so-called Plummer profiles. The shapes of the filament profiles are linked to their physical state. Before drawing conclusions on the observed column density profiles, we must evaluate the observational uncertainties ...
Malinen J., Juvela M., Lunttila T.
openaire   +2 more sources

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

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

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

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

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

Why (Still) Studying Turbulence in Fluids and Plasmas?

Perspectives of Earth and Space Scientists, Volume 4, Issue 1, December 2023., 2023
Abstract Turbulence, a captivating and intricate phenomenon, continues to attract researchers across diverse scientific disciplines. Despite considerable efforts, turbulence remains a fascinating challenge and stands as one of the unsolved enigmas in classical physics.
Tommaso Alberti, Roberto Benzi, Vincenzo Carbone   +2 more
wiley   +1 more source

Chirality in Light–Matter Interaction

Advanced Materials, Volume 35, Issue 34, August 24, 2023., 2023
Recent advances in nanofabricated optical metamaterials designed to enhance the interaction between optical and structural chirality are explored, focusing on the role of chirality in biological systems and its use in current biosensing applications.
Andrew Lininger, Giovanna Palermo, Alexa Guglielmelli, Giuseppe Nicoletta, Madhav Goel, Michael Hinczewski, Giuseppe Strangi   +6 more
wiley   +1 more source