Results 31 to 40 of about 614,016 (317)

The effects of the stellar wind and orbital motion on the jets of high-mass microquasars [PDF]

open access: yes, 2016
High-mass microquasar jets propagate under the effect of the wind from the companion star, and the orbital motion of the binary system. The stellar wind and the orbit may be dominant factors determining the jet properties beyond the binary scales.} An ...
V. Bosch-Ramon, M. Barkov
semanticscholar   +4 more sources

An Overview of Jets and Outflows in Stellar Mass Black Holes [PDF]

open access: yesSpace Science Reviews, 2014
In this book chapter, we will briefly review the current empirical understanding of the relation between accretion state and and outflows in accreting stellar mass black holes. The focus will be on the empirical connections between X-ray states and relativistic (`radio') jets, although we are now also able to draw accretion disc winds into the picture ...
Rob Fender, Elena Gallo, Fender Rob
exaly   +3 more sources

Proper motions of radiative knots in simulations of stellar jets : An alternative to pulsating inflow conditions [PDF]

open access: yes, 2007
Aims. Elongated jets from young stellar objects typically present a nodular structure, formed by a chain of bright knots of enhanced emission with individual proper motions.
F. Rubini   +3 more
semanticscholar   +3 more sources

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

open access: yesMonthly 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.
A. Lim
semanticscholar   +2 more sources

High-resolution images of two wiggling stellar jets, MHO 1502 and MHO 2147, obtained with GSAOI+GeMS [PDF]

open access: yesAstronomy & Astrophysics, 2021
Aims. We investigated the possible cause–e ff ect relation between the wiggling shape of two stellar jets, MHO 1502 and MHO 2147, and the potential binarity of the respective driving stars. Methods. We present high-angular-resolution H 2 (2.122 µ m) and K-
L. Ferrero   +5 more
semanticscholar   +1 more source

Observational signatures of stellar explosions driven by relativistic jets [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
The role of relativistic jets in unbinding the stellar envelope during a supernova (SN) associated with a gamma-ray burst (GRB) is unclear. To study that, we explore observational signatures of stellar explosions that are driven by jets.
Moshe Eisenberg, O. Gottlieb, E. Nakar
semanticscholar   +1 more source

The velocity distribution of outflows driven by choked jets in stellar envelopes [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
Many stripped envelope supernovae (SNe) present a signature of high-velocity material responsible for broad absorption lines in the observed spectrum.
M. Pais, T. Piran, E. Nakar
semanticscholar   +1 more source

Oscillation of high-energy neutrinos from choked jets in stellar and merger ejecta [PDF]

open access: yes, 2020
We present a comprehensive study on oscillation of high-energy neutrinos from two different environments: blue supergiant progenitors that may harbor low-power gamma-ray burst (GRB) jets and neutron star merger ejecta that would be associated with short ...
J. Carpio, K. Murase
semanticscholar   +1 more source

Density Profiles of Collapsed Rotating Massive Stars Favor Long Gamma-Ray Bursts

open access: yesThe Astrophysical Journal Letters, 2023
Long-duration gamma-ray bursts (lGRBs) originate in relativistic collimated outflows—jets—that drill their way out of collapsing massive stars. Accurately modeling this process requires realistic stellar profiles for the jets to propagate through and ...
Goni Halevi   +5 more
doaj   +1 more source

Collapsar Black Holes Are Likely Born Slowly Spinning

open access: yesThe Astrophysical Journal Letters, 2023
Collapsing stars constitute the main black hole (BH) formation channel, and are occasionally associated with the launch of relativistic jets that power γ -ray bursts (GRBs). Thus, collapsars offer an opportunity to infer the natal (before spin-up/down by
Ore Gottlieb   +4 more
doaj   +1 more source

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