Results 71 to 80 of about 2,487 (263)

Observational Tests of Active Galactic Nuclei Feedback: An Overview of Approaches and Interpretation

Galaxies
Growing supermassive black holes (Active Galactic Nuclei; AGN) release energy with the potential to alter their host galaxies and larger-scale environment; a process named “AGN feedback”.
Chris M. Harrison, Cristina Ramos Almeida   +1 more
doaj   +1 more source

Thin disc, thick disc and halo in a simulated galaxy

, 2012
BKG and CBB acknowledge the support of the UK’s Science & Technology Facilities Council (ST/F002432/1 & ST/H00260X/1). BKG and KP acknowledge the generous visitor support provided by Saint Mary’s University and Monash University. TRQ was supported by NSF Grant AST- 0908499.
Brook, C B, Stinson, G S, Gibson, B K, Kawata, D, House, E L, Miranda, M S, Macciò, A V, Pilkington, K, Roškar, R, Wadsley, J, Quinn, T R   +10 more
openaire   +3 more sources

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, EarlyView.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

DISCOVERY OF THE FIRST SUPER-LITHIUM RICH BEAT CEPHEID: V371 PER

Odessa Astronomical Publications, 2012
Four high-resolution spectra of the double-mode Cepheid V371 Per, obtained for the first time, showed the presence of the abnormally strong Li i 6707.76 Å line.
V. V. Kovtyukh, N. I. Gorlova, M. Hillen
doaj   +1 more source

Tidal Dwarf Galaxies: Disc Formation at \(z\simeq0\) [PDF]

Galaxies, 2015
Collisional debris around interacting and post-interacting galaxies often display condensations of gas and young stars that can potentially form gravitationally bound objects: Tidal Dwarf Galaxies (TDGs). We summarise recent results on TDGs, which are originally published in Lelli et al.
Federico Lelli, Pierre-Alain Duc, Elias Brinks, Stacy McGaugh   +3 more
openaire   +2 more sources

Understanding Degradation Mechanisms in Water‐In‐Salt Electrolyte. Part 2: Impact of the Electrochemical Parameters on the Cycling Behavior of LiFePO4 versus TiS2

Batteries &Supercaps, EarlyView.
Cycling water‐in‐salt batteries involves complex degradation processes that require multiprobe analysis. Using online electrochemical mass spectrometry (OEMS), postmortem X‐ray photoemission spectroscopy (XPS) (including hard‐XPS), and scanning electron microscopy (SEM), the degradation mechanisms are examined in composite electrodes (TiS2 and LiFePO4)
Célia Doublet, Théo Faverge, Vincent Martin, Hiram Castillo Michel, Jean‐Pascal Rueff, Marian Chatenet, Lauréline Lecarme, Claire Villevieille   +7 more
wiley   +1 more source

Retrograde infall of the intergalactic gas onto S-galaxy and activity of galactic nuclei

Open Astronomy
We present the results of numerical simulations focused on the accretion of intergalactic gas onto a gas-rich S-type disc galaxy. Our investigation explores the conditions favouring the emergence of counterrotating stellar and gaseous components within ...
Khrapov Sergey S., Khoperskov Alexander V.   +1 more
doaj   +1 more source

The VVVX quest for satellites around the Circinus galaxy

Astronomy & Astrophysics
Context. The Circinus galaxy is the nearest type-2 Seyfert galaxy, located at a distance of 4.2 Mpc. Its environment is challenging to explore because of the low Galactic latitudes of its location, behind the disc of the Milky Way. Aims.
Baravalle L. D., O’Mill A. L., Alonso M. V., Obasi C., Minniti D., Gómez M., Villalon C., Nilo-Castellón J., Valotto C., Soto M., Daza-Perilla I. V., Sgró M. A., Fernández-Trincado J. G.   +12 more
doaj   +1 more source

Towards understanding the dynamics of the bar/bulge region in our Galaxy

EPJ Web of Conferences, 2012
I review some of the work on bars which is closely linked to the bar/bulge system in our Galaxy. Several independent studies, using totally independent methods, come to the same results about the 3D structure of a bar, i.e., that a bar is composed of a ...
Athanassoula E.
doaj   +1 more source

Patterns of wild meat and other protein consumption in the periphery of Salonga National Park, Democratic Republic of the Congo

People and Nature, EarlyView.
Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons, Mattia Bessone, Josué Ausse Baraka, Josué Engombe Botomia, Espérance Miezi, Bénédicte Nsilu, Jonathan Nkamisha Mukole, Michel Opelele Omeno, Jean Semeki Ngabinzeke, Barbara Fruth   +9 more
wiley   +1 more source