Results 11 to 20 of about 36,915 (264)

Connection between Emission and Absorption Outflows through the Study of Quasars with Extremely-High Velocity Outflows [PDF]

, 2022
A recently-discovered class of outflows, extremely high-velocity outflows (EHVOs), may be key to understanding feedback processes as it is likely the most powerful in terms of mass-energy.
Rankine, Amy, Hidalgo, Paola Rodríguez, Rankine, Amy; id_orcid   +2 more
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First detection of acceleration and deceleration in protostellar Jets? Time variability in the Chamaeleontis II outflows [PDF]

, 2009
Context. Kinematical and time variability studies of protostellar jets are fundamental for understanding the dynamics and the physics of these objects. Such studies remain very sporadic, since they require long baselines before they can be accomplished ...
A. Caratti o Garatti, Eisloffel, J., Nisini, B., Caratti O Garatti, A., B. Nisini, L. Calzoletti, J. Eislöffel, D. Froebrich, Froebrich, D., Giannini, T., Calzoletti, L., T. Giannini   +11 more
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Material outflows

, 2021
Material outflows in China and its 31 ...
Yuanyi Huang (9591359), Lulu Song (2721211), Min Dai (219435), Min Hao (3233571), Weiqiang Chen (164339), Nan Li (155066), Ji Han (5279771)   +6 more
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The MEGARA view of outflows in LINERs [PDF]

, 2023
Context. Feedback processes, in particular those driven by outflows, are believed to play a major role in galaxy evolution. Outflows are believed to be ubiquitous in all active galactic nuclei (AGNs), although their presence in low luminosity AGNs, in ...
Márquez, I., Gallego, J., Márquez, Isabel, S. Pascual, Cazzoli, S., M. Chamorro-Cazorla, A. Gil de Paz, Gómez-Álvarez, P., Chamorro-Cazorla, M., de Paz, A. Gil, Masegosa, Josefa, Cardiel, Nicolás, Á. Castillo-Morales, E. Carrasco, Cardiel, N., J. Gallego, A. Pérez-Calpena, J. Iglesias-Páramo, Carrasco, E., I. Márquez, Pascual, S., N. Cardiel, S. Cazzoli, P. Gómez-Álvarez, Iglesias-Páramo, J., Muñoz, L. Hermosa, Hermosa Muñoz, L., J. Masegosa, Pérez-Calpena, A., Castillo-Morales, Á., L. Hermosa Muñoz, M. L. García-Vargas, Masegosa, J., García-Vargas, M. L., Castillo Morales, María África, García Vargas, M. L., Cardiel López, Nicolás, Chamorro Cazorla, Mario, Pérez Calpena, A., Iglesias Páramo, J., Gil De Paz, Armando, Gómez Álvarez, P., Pascual Ramírez, Sergio, Gallego Maestro, Jesús   +43 more
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Studying Extremely High-Velocity Outflows in Sloan Digital Sky Survey Data Release 16 Quasars [PDF]

, 2022
Quasar spectra show signatures of energetic outflows originating from the accretion disk as absorption features. These outflows are like winds, carrying energy and matter from the center of the quasar outwards their host galaxies. Extremely high-velocity
Sanabria, Lorena
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AGN Feedback and Its Quenching Efficiency

Frontiers in Astronomy and Space Sciences, 2017
In the last decade, observations have accumulated on gas outflows in galaxies, and in particular massive molecular ones. The mass outflow rate is estimated between 1 and 5 times the star formation rate. For the highest maximal velocities, they are driven
Francoise Combes
doaj   +1 more source

Parsec-scale HI outflows in powerful radio galaxies [PDF]

, 2021
Massive outflows of neutral atomic hydrogen (H 
R. Schulz, Z. Paragi, E. K. Mahony, Nyland, K., Oosterloo, T., Paragi, Z., Schulz, R., Morganti, R., R. Morganti, K. Nyland, T. Oosterloo, Mahony, E. K.   +11 more
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Radio Continuum Spectra of Planetary Nebulae

Galaxies, 2018
Radio continuum emission of planetary nebulae is a rich source of information about their structure and physical parameters. Although radio emission is well studied, planetary nebulae show higher spectral indices than expected for homogeneous sphere.
Marcin Hajduk, Peter A. M. van Hoof, Karolina Sniadkowska, Andrzej Krankowski, Leszek Błaszkiewicz, Bartosz Dabrowski, Albert A. Zijlstra   +6 more
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Widespread star formation inside galactic outflows [PDF]

, 2019
Several models have predicted that stars could form inside galactic outflows and that this would be a new major mode of galaxy evolution. Observations of galactic outflows have revealed that they host large amounts of dense and clumpy molecular gas ...
Drory, N., Belfiore, Francesco, Riffel, R. A., Gallagher, R., BELFIORE, FRANCESCO MICHEL CONCETTO, Drory, Niv, Riffel, Rogemar André, Riffel, R., Gallagher, Robert, Riffel, Rogério, Maiolino, Roberto, Maiolino, R.   +11 more
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Interferometric view into RT Pav’s long secondary period

Astronomy & Astrophysics
Context. Long secondary periods (LSPs) occur in roughly one third of evolved stars, yet their origin remains uncertain. Two leading hypotheses are oscillatory convective modes and a binary companion enshrouded in dust. Aims. We investigate the LSP in the
Courtney-Barrer B., Haubois X., Wood P., Dionese D., Decin L., Paladini C., El Mellah I., Defrère D., Ireland M.   +8 more
doaj   +1 more source