Results 21 to 30 of about 31,481 (100)

Disks and outflows [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
AbstractThis paper reviews recent developments in the study of bipolar outflows and their possible collimation by disklike structures. The exciting stars of most bipolar outflows are embedded in dense cores, self-gravitating structures with masses in the range of 1 to 103M⊙.
openaire   +2 more sources

Variations in active outflow along the trabecular outflow pathway [PDF]

open access: yesExperimental Eye Research, 2016
Previous tracer studies have shown segmental outflow in the trabecular meshwork (TM) and along the inner wall (IW) of Schlemm's canal (SC). Whether segmental outflow is conserved distal to SC has not yet been investigated. This study aims to investigate whether the segmented pattern of outflow is conserved in distal outflow pathways by using a newly ...
Elliott D.K. Cha   +3 more
openaire   +3 more sources

Molecular outflows [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
The development of millimeter and submillimeter spectroscopy has allowed astronomers to probe the cold, dense component of the interstellar medium. This medium, primarily composed of gas in molecular form, is gravitationally bound into relatively distinct clouds that are sites of star formation within our Galaxy.
openaire   +1 more source

Massive star outflows [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
To be published in the IAU Symposium 227 conference proceedings: Massive Star Birth: A Crossroads of Astrophysics See http://www.aoc.nrao.edu/~dshepher/science.shtml for a ...
openaire   +4 more sources

On the Fraction of Quasars with Outflows [PDF]

open access: yesThe Astrophysical Journal, 2008
Outflows from active galactic nuclei (AGNs) seem to be common and are thought to be important from a variety of perspectives: as an agent of chemical enhancement of the interstellar and intergalactic media, as an agent of angular momentum removal from the accreting central engine, and as an agent limiting star formation in starbursting systems by ...
Rajib Ganguly, Michael S. Brotherton
openaire   +4 more sources

Black hole outflows [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
I show that Eddington accretion episodes in AGN are likely to produce winds with velocities $v \sim 0.1c$ and ionization parameters up to $ \sim 10^4$ (cgs), implying the presence of resonance lines of helium-- and hydrogenlike iron. These properties are direct consequences of momentum and mass conservation respectively, and agree with recent X-ray ...
openaire   +5 more sources

Magnetic Propeller Outflows

open access: yesThe Astrophysical Journal, 1999
A model is developed for magnetic `propeller'-driven outflows which cause a rapidly rotating magnetized star accreting from a disk to spin-down. Energy and angular momentum lost by the star goes into expelling most of the accreting disk matter.
Richard V. E. Lovelace   +2 more
openaire   +3 more sources

Astrophysical jets and outflows [PDF]

open access: yesAdvances in Space Research, 2005
pdf file, 20 pages, 12 figures; invited review lecture for the ASSE 2004 Meeting; submitted to Advances in Spa ...
openaire   +2 more sources

Molecules in Bipolar Outflows [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractBipolar outflows constitute some of the best laboratories to study shock chemistry in the interstellar medium. A number of molecular species have their abundance enhanced by several orders of magnitude in the outflow gas, likely as a combined result of dust mantle disruption and high temperature gas chemistry, and therefore become sensitive ...
Mario Tafalla, Rafael Bachiller
openaire   +4 more sources

Cool outflows in galaxies and their implications [PDF]

open access: yesThe Astronomy and Astrophysics Review, 2020
Neutral-atomic and molecular outflows are a common occurrence in galaxies, near and far. They operate over the full extent of their galaxy hosts, from the innermost regions of galactic nuclei to the outermost reaches of galaxy halos. They carry a substantial amount of material that would otherwise have been used to form new stars.
Veilleux, Sylvain   +3 more
openaire   +5 more sources

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