Results 81 to 90 of about 606,368 (330)

Studying the interaction between microquasar jets and their environments

, 2007
In high-mass microquasars (HMMQ), strong interactions between jets and stellar winds at binary system scales could occur. In order to explore this possibility, we have performed numerical 2-dimensional simulations of jets crossing the dense stellar ...
Bosch-Ramon, V., Perucho, M.
core   +1 more source

Quasar induced galaxy formation: a new paradigm ? [PDF]

, 2009
We discuss observational evidence that quasars play a key role in the formation of galaxies starting from the detailed study of the quasar HE0450-2958 and extending the discussion to a series of converging evidence that radio jets may trigger galaxy ...
Alexander, Bahcall, Bahcall, Bahcall, Begelman, Bell, Bicknell, Bohlin, Brinchmann, Bundy, Calzetti, Canalizo, Chary, Comerford, Cowie, Crawford, Croft, Croton, Croton, D. Elbaz, D. Le Borgne, David, de Grijp, Dekel, Dey, Dey, Di Matteo, Di Matteo, Dickson, E. Pantin, Ebeling, Elbaz, Elvis, Fabian, Fanarof, Favata, Feain, Ferrarese, Ferrarese, Fioc, Fitzpatrick, Fragile, Fu, Fu, G. Letawe, Gebhardt, Genzel, Guzman, Haehnelt, Hasinger, Heavens, Hoffman, Hutchings, Hutchings, Jahnke, Juneau, K. Jahnke, Kennicutt, Kim, King, Klamer, Kodama, Kormendy, Letawe, Letawe, Letawe, Letawe, Li, Low, Maddox, Magain, Magain, Magorrian, Manka, Marconi, Matthews, McCarthy, McCarthy, McLeod, McLure, McLure, McLure, Merritt, Mikkola, Miley, Mirabel, Natarajan, Nesvadba, Nesvadba, Nesvadba, Netzer, Ocvirk, Ooosterloo, Panter, Papadopoulos, Papadopoulos, Pipino, Rees, Rejkuba, Richstone, Riechers, Riechers, Sage, Sandage, Sanders, Sanders, Schawinski, Shields, Silk, Silk, Stockton, Stockton, Stockton, Stockton, Stockton, Tadhunter, Thomas, Thompson, Treu, Van Breugel, Vilenkin, Wampler, Willmer, Willott, Willott, Woo, Zirm   +126 more
core   +2 more sources

The sculpting of rectangular and jet-like morphologies in supernova remnants by anisotropic equatorially confined progenitor stellar winds [PDF]

, 2023
P. F. Velázquez, D M-A Meyer, A. Chiotellis, A E Cruz-Álvarez, M. Schneiter, Juan C. Toledo-Roy, E. M. Reynoso, A. Esquivel   +7 more
openalex   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source

JWST/NIRCam Imaging of the Bipolar Planetary Nebula NGC 6537: The (Infra)red Spider, Revealed

The Astrophysical Journal
We present James Webb Space Telescope (JWST) Near-Infrared Camera (NIRCam) Br α , H _2 , [Fe ii ], and polycyclic aromatic hydrocarbon (PAH) imaging of the molecule-rich, high-excitation bipolar planetary nebula (PN) NGC 6537 (the Red Spider ...
Joel H. Kastner, Paula Moraga Baez, Bruce Balick, Rodolfo Montez Jr., Caroline Gieser, Mikako Matsuura, Jason Nordhaus, Miguel Santander-Garcia   +7 more
doaj   +1 more source

GTC/CanariCam Mid-infrared Polarimetry of Magnetic Fields in Star-forming Region W51 IRS2

The Astrophysical Journal, 2023
We present 0.″4 resolution imaging polarimetry at 8.7, 10.3, and 12.5 μ m, obtained with CanariCam at the Gran Telescopio Canarias, of the central 0.11 pc × 0.28 pc (4.″2 × 10.″8) region of W51 IRS2.
Charles M. Telesco, Han Zhang, Frank Varosi, Pae Swanson, Sergio José Fernández Acosta, Christopher M. Wright, Christopher Packham   +6 more
doaj   +1 more source

Stellar black holes: cosmic history and feedback at the dawn of the universe

, 2010
Significant historic cosmic evolution for the formation rate of stellar black holes is inferred from current theoretical models of the evolution of massive stars, the multiple observations of compact stellar remnants in the near and distant universe, and
I. Felix Mirabel, Le Floc'h, Meynet, Mirabel, Roberston, Romero   +5 more
core   +1 more source

The effect of a stellar magnetic variation on the jet velocity [PDF]

, 2008
Stellar jets are normally constituted by chains of knots with some periodicity in their spatial distribution, corresponding to a variability of order of several years in the ejection from the protostar/disk system.
Armitage P. J., Blandford R. D., Canto J., Casse F., Fabio De Colle, Ferreira J., Gareth Murphy, José Gracia, Lovelace R. V. E., Micono M.   +9 more
core   +4 more sources

Robot‐Assisted Automated Serial‐Sectioning and Imaging for 3D Microstructural Investigations

Advanced Engineering Materials, EarlyView.
A fully automated 3D microstructure characterization platform provides new insights into materials. This robot‐assisted system performs serial‐sectioning, etching, and optical imaging to generate large‐volume 3D reconstructions with submicron resolution.
Michael Moschetti, Anton Lemiasheuski, Evgenia Bajer, Ilja Porohovoj, Artur Göbel, Anja Pfennig, Dirk Bettge, Robert Maaß   +7 more
wiley   +1 more source

Magnetospheric outflows in young stellar objects

EPJ Web of Conferences, 2014
Different classes of outflows are associated with the magnetospheric activity of accreting T Tauri protostars. Stellar winds are accelerated along the open field lines anchored in the stellar surface; disk winds (extended or X-type) can be launched along
Zanni Claudio
doaj   +1 more source