Results 41 to 50 of about 35,438 (198)
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. +9 more
core +4 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
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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.
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The Astrophysical JournalWhile 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 +2 more
doaj +1 more source
Shooting for the Stars: Jet-mode Feedback and AGN Jet Deceleration from Stellar Mass Loading
The Astrophysical JournalActive Galactic Nucleus (AGN) jets are thought to be vital ingredients in galaxy evolution through the action of kinetic feedback; however, how narrow, relativistic outflows couple to galaxies remains an open question.
Talia M. O’Shea +4 more
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Discovery of synchrotron emission from a YSO jet
EPJ Web of Conferences, 2013 Synchrotron emission at radio wavelengths is commonly found in relativistic jets from active galactic nuclei (AGNs) and microquasars and allows the study of the magnetic field in these kind of jets.
Carrasco-González Carlos +5 more
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Time-variable Jet Ejections from RW Aur A, RY Tau, and DG Tau
The Astrophysical Journal Supplement Series, 2022 We present Gemini-NIFS, Very Large Telescope-SINFONI, and Keck-OSIRIS observations of near-IR [Fe ii ] emission that are associated with well-studied jets from three active T Tauri stars—RW Aur A, RY Tau, and DG Tau—taken from 2012 to 2021.
Michihiro Takami +19 more
doaj +1 more source
, 2008 With a goal of understanding the conditions under which jets might be produced in novae and related objects, I consider the conditions under which jets are produced from other classes of accreting compact objects. I give an overview of accretion disk spectral states, including a discussion of in which states these jets are seen.
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The Astrophysical JournalWe present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the Class 0 protostar IRAS 04166+2706, obtained as part of the ALMA Large Program Early Planet Formation in Embedded Disks.
Nguyen Thi Phuong +22 more
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Three-dimensional GRMHD Simulations of Neutron Star Jets
The Astrophysical Journal LettersNeutron stars and black holes in X-ray binaries are observed to host strong collimated jets in the hard spectral state. Numerical simulations can act as a valuable tool in understanding the mechanisms behind jet formation and its properties.
Pushpita Das, Oliver Porth
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