Results 41 to 50 of about 35,594 (296)

The fastest components in stellar jets

Bulletin of the American Astronomical Society, 2019
Outflows and jets are a crucial component of the star formation process. The innermost components of those jets are launched close to the star and thus probe the connection between star, disk, and magnetic field. Observations with high spatial resolution in the UV and X-rays are required to probe these fast winds.
Günther, Hans M., Espaillat, Catherine, France, Kevin, Li, Zhi-Yun, Johns-Krull, Christopher M., Dougados, Catherine, Schneider, P. Christian, Fischer, Will, Wolk, Scott J., Beck, Tracy L., Calvet, Nuria, Guedel, Manuel   +11 more
openaire   +4 more sources

Jet-powered Turbulence in Common Envelope Evolution

The Astrophysical Journal, 2023
We conduct a three-dimensional hydrodynamical simulation of common envelope evolution (CEE) where a neutron star (NS) spirals in inside the envelope of a red supergiant star in a predetermined orbit.
Shlomi Hillel, Ron Schreier, Noam Soker
doaj   +1 more source

On the interaction of jets with stellar winds in XRBs

, 2010
We present the first three-dimensional simulations of the evolution of a microquasar jet inside the binary-star system. The aim is to study the interaction of these jets with the stellar wind from a massive companion and the possible locations of high ...
Bosch-Ramon, V., Khangulyan, D., Perucho, M.   +2 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Nonradial and nonpolytropic astrophysical outflows IX. Modeling T Tauri jets with a low mass-accretion rate

, 2011
Context: A large sample of T Tauri stars exhibits optical jets, approximately half of which rotate slowly, only at ten per cent of their breakup velocity.
Agra-Amboage, Aibéo, Anderson, André, Bardeen, Beck, Bertout, Blandford, Bouvier, Bouvier, Bouvier, C. Sauty, Cabrit, Cabrit, Calvet, Casse, Choi, Cieza, Clarke, Contopoulos, Decampli, Donati, Dougados, Edwards, Edwards, Fendt, Ferreira, Ferreira, Ferro-Fontán, Garcia, Garcia, Ghosh, Ghosh, Gracia, Gómez de Castro, Gómez de Castro, Günther, Hartigan, Herbst, J. J. G. Lima, K. Tsinganos, Koide, Kopp, Krasnopolsky, Kundurthy, Kwan, Küker, Lavalley-Fouquet, Li, Lima, Marilli, Matsakos, Matsakos, Matt, Matt, Matt, Matt, Matt, Meliani, Mestel, Mestel, Mora, N. Globus, Ouyed, Petrov, Pudritz, Rebull, Rebull, Rebull, Romanova, Sauty, Sauty, Sauty, Sauty, Sauty, Schatzman, Schwartz, Shang, Shu, Spruit, St-Onge, Stassun, Stassun, Stute, Ustyugova, V. Cayatte, Vidotto, Vidotto, Vlahakis, Vlahakis, Walter, Weber, Z. Meliani, Zanni   +93 more
core   +2 more sources

Jet-Induced Explosions of Core Collapse Supernovae [PDF]

, 1999
We numerically studied the explosion of a supernova caused by supersonic jets present in its center. The jets are assumed to be generated by a magneto-rotational mechanism when a stellar core collapses into a neutron star. We simulated the process of the
A. M. Khokhlov, A. Yu. Chtchelkanova, Bisnovatyi-Kogan G. S., E. S. Oran, J. C. Wheeler, Janka H.-T., L. Wang, P. A. Höflich   +7 more
core   +3 more sources

Simulated images of stellar jets

The Astronomical Journal, 1991
In many cases, the sources of jetlike Herbig-Haro objects are optically invisible, embedded objects which are usually detected at infrared wavelengths. The jets become visible only at distance of 10 16 -10 17 cm from the source, where they emerge from the molecular cloud core that surrounds the central object.
Hume A. Feldman, A. C. Raga
openaire   +1 more source

Variable stellar jets -- II. Precessing jets and stagnation knots [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
We investigate, from both analytical and numerical points of view, the formation of stagnation features in precessing Herbig–Haro type jets. These structures are formed via a mechanism very similar to that recently presented as a formation mechanism for fast low-ionization emission regions (FLIERs) in planetary nebulae.
openaire   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Discovery of Jet–Bubble–Disk Interaction: Jet Feedback on a Protoplanetary Disk Via an Expanding Bubble in WSB 52

The Astrophysical Journal
While stellar jets and outflows are fueled by accretion from disks, their direct influence on disks remain unexplored. Here, we revisit Atacama Large Millimeter/submillimeter Array observations of ^12 CO ( J  = 2–1) line emission for the young stellar ...
Masataka Aizawa, Ryuta Orihara, Munetake Momose   +2 more
doaj   +1 more source