Results 101 to 110 of about 675,630 (383)

Controlled Air Gap Formation between W and TiO2 Films via Sub‐Surface TiO2 Atomic Layer Etching

Advanced Materials Technologies, EarlyView.
Delivering SiH4 and WF6 to a lined array of TiO2 films produces a thin film of tungsten while simultaneously, the underlying TiO2 is removed. When the W‐coated TiO2 structure is exposed to further etching cycles after deposition, TiO2 etching continues vertically and laterally, creating a self‐supported W structure and a vacant air gap.
Hannah R. M. Margavio, Jimmy Nguyen, Man Hou Vong, Nicholas M. Carroll, Ishwar Singh, Noel Arellano, Gregory N. Parsons   +6 more
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

Large scale hydrodynamic modes of oscillations in gaseous disks of flat galaxies with a kink on rotation curves

Open Astronomy, 2018
The properties of unstable large-scale hydrodynamic (HD) modes of oscillations in the gaseous disk of a flat galaxy with a rotation curve having a velocity jump in the inner region of the disk are numerically investigated.
Torgashin Yury, Omurkanov Turgunbek
doaj   +1 more source

ZELDOVICH LOCAL PANCAKE: DARK ENERGY DOMINATION

Odessa Astronomical Publications, 2018
Zeldovich Local Pancake is a two-dimensional system of 15 giant galaxies nearest to us. Two of the galaxies, the Milky Way and the Andromeda Galaxy, move to each other in the Local Group, while the rest of the galaxies are located around the group at ...
A. D. Chernin, I. D. Karachentsev, N. V. Emelyanov   +2 more
doaj   +1 more source

The Seyfert Population in the Local Universe

, 2003
The magnitude-limited catalog of the Southern Sky Redshift Survey (SSRS2), is used to characterize the properties of galaxies hosting Active Galactic Nuclei.
Christopher N. A. Willmer, Efstathiou G., Felten J. E., Kelm B., Kohler T., Kollatschny W., Laurikainen E., Laurikainen E., Maddox S. J., Maia M. A. G., Marcio A. G. Maia, Noguchi M., Petrosian A. R., Rodolfo S. Machado   +13 more
core   +1 more source

Photometric Properties of Six Local Volume Dwarf Galaxies from Deep Near-Infrared Observations [PDF]

, 2010
We have obtained deep near-infrared $J$- (1.25 $\mu$m), $H$- (1.65$ \mu$m) and $K_s$-band (2.15 $\mu$m) imaging for a sample of six dwarf galaxies ($M_B\ga-17$ mag) in the Local Volume (LV, $D\la10$ Mpc).
Andreon, B. De Swardt, Beaulieu, Bell, Bouchard, Bouchard, Bouchard, Bullock, Buta, Cairós, Caon, Colina, Côté, Da Costa, Galaz, Gavazzi, Gavazzi, Glass, H. Jerjen, Jarrett, Jarrett, Jerjen, Jerjen, Jerjen, Jerjen, Karachentsev, Karachentsev, Karachentseva, Kassin, Kirby, Kleyna, Kormendy, Kormendy, Lauberts, Noeske, Parodi, Puzia, Puzia, R. C. Kraan-Korteweg, Schlegel, Seitzer, Skillman, St-Germain, Taylor, Tonry, Vaduvescu, Vaduvescu, Zibetti   +47 more
core   +1 more source

Evolutionary population synthesis: models, analysis of the ingredients and application to high‐z galaxies [PDF]

, 2004
Evolutionary population synthesis models for a wide range of metallicities, ages, star formation histories, initial mass functions and horizontal branch morphologies, including blue morphologies at high metallicity, are computed.
C. Maraston
semanticscholar   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

Emission Knots and Polarization Swings of Swinging Jets

Galaxies, 2016
Knots (emission features in jets of active galactic nuclei) often show non-ballistic dynamics and variable emission/polarization properties. We model these features as emission pattern propagating in a jet that carries a helical magnetic field and is ...
Maxim Lyutikov, Evgeniya Kravchenko
doaj   +1 more source

The Intra-Group Baryons in the LEO I Pair From the VST Early-Type GAlaxy Survey

Frontiers in Astronomy and Space Sciences, 2022
In this paper we present the deep, wide-field and multi-band imaging of the LEO I pair NGC 3379-NGC 3384, from the VST Early-type GAlaxy Survey (VEGAS).
Rossella Ragusa, Rossella Ragusa, Marco Mirabile, Marco Mirabile, Marilena Spavone, Michele Cantiello, Enrichetta Iodice, Antonio La Marca, Antonio La Marca, Maurizio Paolillo, Maurizio Paolillo, Pietro Schipani   +11 more
doaj   +1 more source