Results 51 to 60 of about 322,282 (370)

Quasar-mode Feedback in Nearby Type 1 Quasars: Ubiquitous Kiloparsec-scale Outflows and Correlations with Black Hole Properties [PDF]

open access: yes, 2017
The prevalence and properties of kiloparsec-scale outflows in nearby Type 1 quasars have been the subject of little previous attention. This work presents Gemini integral field spectroscopy of 10 Type 1 radio-quiet quasars at .
D. Rupke, K. Gültekin, S. Veilleux
semanticscholar   +1 more source

Properties of ionized outflows in MaNGA DR2 galaxies [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We present the results from a systematic search and characterization of ionized outflows in nearby galaxies using the data from the second Data Release of the Mapping Nearby Galaxies at Arecibo Point Observatory (MaNGA) Survey (DR2; >2700 galaxies, z ≤
Bruno Rodríguez del Pino   +4 more
semanticscholar   +1 more source

Emergence of a quasar outflow [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2008
Abstract We report the first discovery of the emergence of a high-velocity broad-line outflow in a luminous quasar, J105400.40+034801.2, at redshift z∼ 2.1. The outflow is evident in ultraviolet C iv and Si iv absorption lines with velocity shifts v∼ 26 300 km s−1 and deblended widths FWHM ∼4000 km s−1.
Hamann, F.   +4 more
openaire   +2 more sources

Foreign direct investment, economic crisis and the European Union [PDF]

open access: yesRomanian Economic Journal, 2013
This paper aims to demonstrate that, the European Union remained the most important player in the global investment market, despite the conditions of economic crisis.
Daniela Pîrvu, Anca Cojocaru
doaj  

Morphologies of protostellar outflows: An ALMA view [PDF]

open access: yes, 2013
The formation of stars is usually accompanied by the launching of protostellar outflows. Observations with the Atacama Large Millimetre/sub-millimetre Array (ALMA) will soon revolutionalise our understanding of the morphologies and kinematics of these ...
Banerjee, Robi   +4 more
core   +1 more source

The largely unconstrained multiphase nature of outflows in AGN host galaxies [PDF]

open access: yes, 2018
Observations and simulations show that outflows in active galactic nuclei contain gas in different phases. To understand their true impact on galaxy evolution, we advocate consistent and unbiased investigation of these multiphase winds in large active ...
C. Cicone   +5 more
semanticscholar   +1 more source

PROTOSTELLAR OUTFLOWS IN L1340 [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We have searched the L1340 A, B, and C clouds for shocks from protostellar outflows using the H2 2.122 μm near-infrared line as a shock tracer. Substantial outflow activity has been found in each of the three regions of the cloud (L1340 A, L1340 B, and L1340 C).
Josh Walawender   +4 more
openaire   +3 more sources

Counterstreaming Cold H+, He+, O+, and N+ Outflows in the Plasmasphere

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The Naval Research Laboratory (NRL) Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine H+, He+, N+, and O+ thermal outflows during a storm.
J. Krall, J. D. Huba
doaj   +1 more source

Widespread QSO-driven outflows in the early Universe [PDF]

open access: yesAstronomy & Astrophysics, 2018
We present the stacking analysis of a sample of 48 quasi-stellar objects (QSOs) at 4.5 <  z <  7.1 detected by the Atacama Large Millimetre Array (ALMA) in the [CII] λ158 μm emission line to investigate the presence and the properties of massive, cold ...
M. Bischetti   +4 more
semanticscholar   +1 more source

The Many Routes to AGN Feedback

open access: yesFrontiers in Astronomy and Space Sciences, 2017
The energy released by Active Galactic Nuclei (AGN) in the form of radiation, winds, or radio plasma jets, is known to impact on the surrounding interstellar medium. The result of these processes, known as AGN (negative) feedback, is suggested to prevent
Raffaella Morganti, Raffaella Morganti
doaj   +1 more source

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