Results 61 to 70 of about 35,438 (198)

Explaining the most energetic supernovae with an inefficient jet-feedback mechanism

open access: yes, 2016
We suggest that the energetic radiation from core-collapse super-energetic supernovae (SESNe) is due to a long lasting accretion process onto the newly born neutron star (NS), resulting from an inefficient operation of the jet-feedback mechanism.
Gilkis, Avishai   +2 more
core   +1 more source

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

open access: yesThe 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   +7 more
doaj   +1 more source

On the interaction of microquasar jets with stellar winds

open access: yes, 2008
Strong interactions between jets and stellar winds at binary system spatial scales could occur in high-mass microquasars. We study here, mainly from a dynamical but also a radiative point of view, the collision between a dense stellar wind and a mildly ...
Aharonian   +60 more
core   +1 more source

Investigating the Nested Structure of the Outflow from the Low Luminosity Protostar IRAS 16253-2429 Using JWST and ALMA

open access: yesThe Astrophysical Journal
Understanding the earliest stage of star and planet formation requires detailed observations to address the connection and interplay between the accretion, outflow, and disk evolution.
Mayank Narang   +39 more
doaj   +1 more source

An Embedded Disk (eDisk) in the IceAge: Investigating the Jet and Outflow from Ced 110 IRS4

open access: yesThe Astronomical Journal
We present a comprehensive study of the large-scale structure, jet and outflow morphology, and kinematics of the Class 0/I protostellar binary Ced 110 IRS4, using JWST NIRCam (F150W and F410M) and MIRI MRS observations from the JWST ERC program IceAge ...
Mayank Narang   +6 more
doaj   +1 more source

Relativistic Jets with Stellar Wind Entrainment [PDF]

open access: yesSymposium - International Astronomical Union, 1994
Observations suggest that the flow speeds in extragalactic radio jets are relativistic on parsec scales. This evidence includes rapid variability, brightness temperatures in excess of the inverse Compton limit and even the motion of individual features with apparent superluminal velocities. In contrast, FR–1 flow speeds appear to be non–relativistic on
openaire   +1 more source

JETS IN SUPERMASSIVE AND STELLAR-MASS BLACK HOLES [PDF]

open access: yesTexas in Tuscany, 2003
Invited Review at the XXI Symposium on Relativistic Astrophysics (Firenze 9-13 Dec. 2002).
openaire   +2 more sources

The CO Outflow Components Ejected by a Recent Accretion Event in B335

open access: yesThe Astrophysical Journal
Protostellar outflows often present a knotty appearance, providing evidence of sporadic accretion in stellar mass growth. To understand the direct relation between mass accretion and ejection, we analyze the contemporaneous accretion activity and ...
Chul-Hwan Kim   +6 more
doaj   +1 more source

Studying the interaction between microquasar jets and their environments

open access: yes, 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

EPISODE. III. The Nested Jet/Outflow Morphology of EC 53 Revealed by JWST and ALMA

open access: yesThe Astrophysical Journal
We present an extensive study of the structure and kinematics of the jet and outflow of EC 53, a Class I protostar with a quasiperiodic variability, using combined James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array (ALMA ...
Seonjae Lee   +10 more
doaj   +1 more source

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