Results 91 to 100 of about 101,045 (324)

The Infrared Continuum of Active Galaxies

, 2003
We discuss the different physical processes contributing to the infrared continuum of AGN, assuming that both photoionization from the active center and shocks ionize and heat the gas and dust contained in an ensemble of clouds surrounding the nucleus ...
Allen, Alonso-Herrero, Antonucci, Arp, Barvainis, Blain, Carico, Chini, Ciroi, Condon, Contini, Contini, Contini, Contini, Contini, Contini, Contini, Contini, Contini, Contini, de Vaucouleurs, Douglas, Draine, Draine, Dressel, Dunne, Dwek, Dwek, Eales, Edelson, Granato, Granato, Gregory, Jarrett, Laor, M. A. Prieto, M. Contini, Nenkova, Pier, Pier, Rieke, Rigopolous, Rowan-Robinson, S. M. Viegas, Shull, Siebenmorgen, Soifer, Spinoglio, Spinoglio, Vaceli, Viegas, Viegas, Waldram, White, Zwicky   +54 more
core   +2 more sources

Effect of Background Magnetic Field on Ion Weibel Instability With High‐Intensity Short‐Pulse Lasers

Contributions to Plasma Physics, EarlyView.
ABSTRACT The effect of finite background magnetic field on magnetic field amplification by Weibel instability using high‐intensity short‐pulse lasers is investigated. We consider Weibel instability for counter‐streaming sub‐relativistic plasma flows generated by shooting pure carbon targets with short‐pulse lasers.
Taiki Jikei, Takanobu Amano, Yosuke Matsumoto, Yasuhiro Kuramitsu   +3 more
wiley   +1 more source

Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806

The Astrophysical Journal
It is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood.
Sophie L. Robbins, Sandra I. Raimundo, Matthew A. Malkan   +2 more
doaj   +1 more source

X-ray emission of galaxies with emission lines

Вісник Астрономічної школи, 2011
We built new sample of 315 SDSS galaxies which were detected as X-ray sources in 2XMM catalog. On the basis of distribution of relative intensities of emission lines NII [6583] and OIII [5007] we divided objects of the sample into starburst galaxies and ...
A. V. Tugay, A. A. Vasylenko
doaj   +1 more source

The core fundamental plane of B2 radio galaxies

, 2009
The photometric, structural and kinematical properties of the centers of elliptical galaxies, harbor important information of the formation history of the galaxies.
Balmaverde, Bernardi, Bettoni, Bettoni, Capetti, Capetti, Capetti, Colla, D. Bettoni, De Juan, De Koff, de Ruiter, de Ruiter, de Ruiter, Desroches, Emonts, Emonts, Faber, Fanti, Fanti, Ferrarese, González-Serrano, H. de Ruiter, Hyde, Jaffe, Jørgensen, Kormendy, Lauer, Massaglia, Morganti, Morganti, Noel-Storr, Ochsenbein, P. Parma, Parma, Paturel, R. Falomo, R. Fanti, Sargent, Trussoni, Verdoes Kleijn   +40 more
core   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

Deep Underground Science and Engineering, EarlyView.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

The Host Galaxy Fluxes of Active Galaxy Nuclei Are Generally Overestimated by the Flux Variation Gradient Method

Universe
In terms of the variable nature of normal active galaxy nuclei (AGN) and luminous quasars, a so-called flux variation gradient (FVG) method has been widely utilized to estimate the underlying non-variable host galaxy fluxes.
Minxuan Cai, Zhen Wan, Zhenyi Cai, Lulu Fan, Junxian Wang   +4 more
doaj   +1 more source

Dwarf Galaxies with Optical Signatures of Active Massive Black Holes

, 2013
We present a sample of 151 dwarf galaxies (10^8.5 < M_stellar < 10^9.5 Msun) that exhibit optical spectroscopic signatures of accreting massive black holes (BHs), increasing the number of known active galaxies in this stellar mass range by more than an ...
Geha, Marla, Greene, Jenny E., Reines, Amy E.   +2 more
core   +1 more source

Quality of life in heart failure. The heart of the matter. A scientific statement of the Heart Failure Association and the European Association of Preventive Cardiology of the European Society of Cardiology

European Journal of Heart Failure, EarlyView.
For most patients with chronic, progressive illnesses, maintaining good quality of life (QoL), with preserved functional capacity, is just as crucial as prolonging survival. Patients with heart failure (HF) experience much worse QoL and effort intolerance than both the general population and people with other chronic conditions, since they present a ...
Maurizio Volterrani, Geza Halasz, Stamatis Adamopoulos, Pier Giuseppe Agostoni, Javed Butler, Andrew J.S. Coats, Alan Cohen‐Solal, Wolfram Doehner, Gerasimos Filippatos, Ewa Jankowska, Carolyn S.P. Lam, Ekaterini Lambrinou, Lars H. Lund, Giuseppe Rosano, Marco Metra, Stefania Paolillo, Pasquale Perrone Filardi, Amina Rakisheva, Gianluigi Savarese, Petar Seferovic, Carlo Gabriele Tocchetti, Massimo Piepoli   +21 more
wiley   +1 more source

An Exceptionally Powerful, Radiatively Driven Ultrafast Outflow in the Rapidly Accreting AGN RE J1034+396

The Astrophysical Journal
We report the analysis of ∼1 Ms of XMM-Newton observations of the rapidly accreting active galactic nucleus RE J1034+396. The 0.3–9 keV EPIC-pn spectra are well described by a model consisting of steep continuum emission from the corona accompanied by ...
Chloe S. Taylor, Daniel R. Wilkins, Steven W. Allen   +2 more
doaj   +1 more source