Results 41 to 50 of about 614,016 (317)

RECOLLIMATION BOUNDARY LAYERS AS X-RAY SOURCES IN YOUNG STELLAR JETS [PDF]

open access: yes, 2014
Young stars accrete mass from circumstellar disks and, in many cases, the accretion coincides with a phase of massive outflows, which can be highly collimated. Those jets emit predominantly in the optical and IR wavelength range.
H. M. Günther, Zhi-Yun Li, P. Schneider
semanticscholar   +1 more source

Astrophysical jets: insight into long term hydrodynamics. Article and Supplementary Information [PDF]

open access: yes, 2011
Astrophysical jets are ubiquitous throughout the universe. They can be observed to emerge from protostellar objects, stellar x-ray binaries and supermassive black holes located at the center of active galaxies, and they are believed to originate from a ...
E Bodenschatz   +30 more
core   +2 more sources

Power-law Distribution of Solar Cycle–modulated Coronal Jets

open access: yesThe Astrophysical Journal Supplement Series, 2023
Power-law distributions have been studied as a significant characteristic of nonlinear dissipative systems. Since discovering the power-law distribution of solar flares that was later extended to nanoflares and stellar flares, it has been widely accepted
Jiajia Liu   +8 more
doaj   +1 more source

Parsec-scale jets driven by high-mass young stellar objects [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. Protostellar jets in high-mass young stellar objects (HMYSOs) play a key role in the understanding of star formation and provide us with an excellent tool to study fundamental properties of HMYSOs. Aims.
R. Fedriani   +17 more
semanticscholar   +1 more source

Black holes, disks, and jets following binary mergers and stellar collapse: The narrow range of electromagnetic luminosities and accretion rates. [PDF]

open access: yesPhysical review. D., 2017
We have performed magnetohydrodynamic simulations in general relativity of binary neutron star and binary black hole-neutron star mergers, as well as the magnetorotational collapse of supermassive stars. In many cases the outcome is a spinnng black hole (
S. Shapiro
semanticscholar   +1 more source

A Global Inventory of Feedback

open access: yesGalaxies, 2023
Feedback from both supermassive black holes and massive stars plays a fundamental role in the evolution of galaxies and the inter-galactic medium. In this paper, we use available data to estimate the total amount of kinetic energy and momentum created ...
Timothy M. Heckman, Philip N. Best
doaj   +1 more source

Bipolar Outflows and Stellar Jets [PDF]

open access: yesSymposium - International Astronomical Union, 1987
A wealth of data is now available on the energetic mass outflows that are associated with young stellar objects. This phenomenon is thought to occur at a very early stage in the evolution of stars of almost all masses. The discovery of this energetic event was first made through observations of the rapidly expanding molecular gas that surrounds many of
openaire   +1 more source

FLUID DYNAMICS OF STELLAR JETS IN REAL TIME: THIRD EPOCH HUBBLE SPACE TELESCOPE IMAGES OF HH 1, HH 34, AND HH 47 [PDF]

open access: yes, 2011
We present new, third-epoch Hubble Space Telescope Hα and [S ii] images of three Herbig–Haro (HH) jets (HH 1&2, HH 34, and HH 47) and compare the new images with those from previous epochs.
P. Hartigan   +8 more
semanticscholar   +1 more source

The Effect of a Stellar Magnetic Variation on the Jet Velocity [PDF]

open access: yesThe Astrophysical Journal, 2008
5 pages, 3 figures, accepted for publication in ...
de Colle, Fabio   +2 more
openaire   +3 more sources

Low- and High-energy Neutrinos from SN 2023ixf in M101

open access: yesThe Astrophysical Journal Letters, 2023
Supernova (SN) 2023ixf in M101 is the closest SN explosion observed in the last decade. Therefore, it is a suitable test bed to study the role of jets in powering the SN ejecta.
Dafne Guetta   +3 more
doaj   +1 more source

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