Results 71 to 80 of about 884 (199)

(When) Are Filaments Fundamental? [PDF]

Presentation Date: Monday, April 3, 2017. Location: Department Seminar, Department of Astrophysics, University of Vienna. Abstract: As the resolution of imaging of the dense interstellar medium has improved, we have gone from a very blobby view ...
Goodman, Alyssa
core   +1 more source

The role of interstellar filaments in regulating the star formation efficiency and shaping the initial mass function [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractRecent surveys at infrared and submillimeter wavelengths with the Spitzer and Herschel space observatories suggest that star formation in dense molecular gas is governed by essentially the same “laws” in nearby Galactic clouds and distant external galaxies. This raises the possibility of a unified picture for star formation in the Universe from
Vera Könyves, Philippe André
openaire   +1 more source

Filaments: Fad or Fundamental? [PDF]

Presentation Date: Friday, December 2, 2016. Location: Toronto, ON. Abstract: As the resolution of imaging of the dense interstellar medium has improved, we have gone from a very blobby view, featuring interstellar “clouds,” to a much more “stringy”
Goodman, Alyssa
core   +1 more source

On the nature of star-forming filaments: II. Sub-filaments and velocities [PDF]

, 2016
We show that hydrodynamic turbulent cloud simulations naturally produce large filaments made up of a network of smaller and coherent subfilaments. Such simulations resemble observations of filaments and fibres in nearby molecular clouds. The subfilaments
Smith, R J, Glover, S C O, Fuller, Gary; id_orcid, Klessen, R S   +3 more
core   +1 more source

The nature of the X-ray filaments around bow shock pulsar wind nebulae [PDF]

Context. We propose that the X-ray filaments emerging from selected bow shock pulsar wind nebulae are due to a charge-separated outflow of electrons and/or positrons escaping the nebula and propagating along the local Galactic magnetic field. Aims. The X-
Amato, Elena, Bandiera, Rino, Blasi, Pasquale, Olmi, Barbara   +3 more
core   +4 more sources

The ALMA-QUARKS Survey: Fibers’ Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud

The Astrophysical Journal
In this paper, we present a detailed analysis of the IRS 17 filament within the intermediate-mass protocluster IRAS 08448-4343 (of ∼10 ^3 L _⊙ ), using ALMA data from the ATOMS 3 mm and QUARKS 1.3 mm surveys.
Dongting Yang, Hong-Li Liu, Tie Liu, Anandmayee Tej, Xunchuan Liu, Jinhua He, Guido Garay, Amelia Stutz, Lei Zhu, Sheng-Li Qin, Fengwei Xu, Pak-Shing Li, Mika Juvela, Pablo García, Paul F. Goldsmith, Siju Zhang, Xindi Tang, Patricio Sanhueza, Shanghuo Li, Chang Won Lee, Swagat Ranjan Das, Wenyu Jiao, Xiaofeng Mai, Prasanta Gorai, Yichen Zhang, Zhiyuan Ren, L. Viktor Tóth, Jihye Hwang, Leonardo Bronfman, Ken’ichi Tatematsu, Lokesh Dewangan, James O. Chibueze, Suinan Zhang, Gang Wu, Jinjin Xie   +34 more
doaj   +1 more source

Brecciation at the grain scale within the lithologies of the Winchcombe Mighei‐like carbonaceous chondrite

Meteoritics &Planetary Science, Volume 59, Issue 5, Page 1068-1100, May 2024.
Abstract The Mighei‐like carbonaceous (CM) chondrites have been altered to various extents by water–rock reactions on their parent asteroid(s). This aqueous processing has destroyed much of the primary mineralogy of these meteorites, and the degree of alteration is highly heterogeneous at both the macroscale and nanoscale.
Luke Daly, Martin D. Suttle, Martin R. Lee, John Bridges, Leon Hicks, Pierre‐Etienne M. C. Martin, Cameron J. Floyd, Laura E. Jenkins, Tobias Salge, Ashley J. King, Natasha V. Almeida, Diane Johnson, Patrick W. Trimby, Haithem Mansour, Fabian B. Wadsworth, Gavyn Rollinson, Matthew J. Genge, James Darling, Paul A. J. Bagot, Lee F. White, Natasha R. Stephen, Jennifer T. Mitchell, Sammy Griffin, Francesca M. Willcocks, Rhian Jones, Sandra Piazolo, Joshua F. Einsle, Alice Macente, Lydia J. Hallis, Aine O'Brien, Paul F. Schofield, Sara S. Russell, Helena Bates, Caroline Smith, Ian Franchi, Lucy V. Forman, Phil A. Bland, David Westmoreland, Iain Anderson, Richard Taylor, Mark Montgomery, Mark Parsons, Jérémie Vasseur, Matthias van Ginneken, Penelope J. Wozniakiewicz, Mark J. Burchell, Daniel Hallatt, Luke S. Alesbrook, Vassilia Spathis, Richard Worden, Julie Behnsen, Kate Black, the UK Fireball Alliance   +52 more
wiley   +1 more source

Reconstructing the 3D Structure of Filamentary Structures with the Elliptical Inverse Abel Transformation Method

The Astrophysical Journal
The study of the volume density distribution of filamentary structures in molecular clouds is crucial for investigating the mechanism of star formation and can reveal the fragmentation process under the effects of gravitational collapse, magnetic fields,
Yapeng Zhang, Shibo Yuan, Weiming An, Yongli Ping, Jiayong Zhong   +4 more
doaj   +1 more source

Investigating the impact of x‐ray computed tomography imaging on soluble organic matter in the Murchison meteorite: Implications for Bennu sample analyses

Meteoritics &Planetary Science, Volume 59, Issue 1, Page 105-133, January 2024.
Abstract X‐ray computed tomography (XCT) is a valuable reconnaissance tool for three‐dimensional imaging and identification of distinct lithologies in extraterrestrial samples. It will be used as part of the preliminary examination of samples returned from asteroid (101955) Bennu by the Origins, Spectral Interpretation, Resource Identification, and ...
Daniel P. Glavin, Scott A. Eckley, José C. Aponte, Eve L. Berger, Aaron S. Burton, Jason P. Dworkin, Jamie E. Elsila, Frank T. Ferguson, Yoshihiro Furukawa, Heather V. Graham, Toshiki Koga, Michael Liss, Hannah L. McLain, Hiroshi Naraoka, Yasuhiro Oba, Eric T. Parker, Kevin Righter, Philippe Schmitt‐Kopplin, Danielle N. Simkus, Yoshinori Takano, Harold C. Connolly Jr., Dante S. Lauretta   +21 more
wiley   +1 more source

SDC13 infrared dark clouds: Longitudinally collapsing filaments? [PDF]

, 2014
International audienceFormation of stars is now believed to be tightly linked to the dynamical evolution of interstellar filaments in which they form.
Williams, J., {de Villiers}, H, {Williams}, J, {Olguin}, F A, de Villiers, H., D. Arzoumanian, G. A. Fuller, Peretto, Nicolas, H. de Villiers, Arzoumanian, D., Peretto, N., Bardeau, S., Fuller, Gary; id_orcid, Roeck, B. R., {Duarte Puertas}, S, J. Williams, {Bardeau}, S, B. R. Röck, C. Lenfestey, Fuller, G. A., S. Bardeau, Lenfestey, C., Röck, B. R., {Fuller}, G A, Li, G. -X., F. A. Olguin, Duarte Puertas, S., Olguin, F. A., G.-X. Li, {Lenfestey}, C, {Röck}, B R, André, Ph., V. M. Rivilla, {Li}, G-X, Guzman Fernandez, J. P., N. Peretto, {Guzman Fernandez}, J P, J. P. Guzman Fernandez, Ph. André, Rivilla, V. M., Li, G.-X., {Rivilla}, V M, {André}, P, {Arzoumanian}, D, {Peretto}, N, S. Duarte Puertas   +45 more
core   +2 more sources