Results 41 to 50 of about 225,051 (342)

Fractional yields inferred from halo and thick disk stars [PDF]

Serbian Astronomical Journal, 2013
Linear [Q/H]-[O/H] relations, Q = Na, Mg, Si, Ca, Ti, Cr, Fe, Ni, are inferred from a sample (N = 67) of recently studied FGK-type dwarf stars in the solar neighbourhood including different populations (Nissen and Schuster 2010, Ramirez et al ...
Caimmi R.
doaj   +1 more source

Origin of chemical and dynamical properties of the Galactic thick disk

, 2011
We adopt a scenario in which the Galactic thick disk was formed by minor merging between the first generation of the Galactic thin disk (FGTD) and a dwarf galaxy about 9 Gyr ago and thereby investigate chemical and dynamical properties of the Galactic ...
Abadi, Allende Prieto, Bekki, Bekki, Bekki, Bensby, Binney, Binney, Brook, Carollo, Chiappini, Chiba, Dierickx, Dinescu, Edvardsson, Frogel, Fuhrmann, Gilmore, Gilmore, Gratton, Huang, Humphreys, Ivezić, Jurić, Karataş, Kazantzidis, Kenji Bekki, Larsen, Larsen, Lee, Loebman, Parker, Prochaska, Reddy, Reddy, Robin, Roškar, Ruchti, Takuji Tsujimoto, Tsujimoto, Tsujimoto, Villalobos, Yoachim, Yoshii   +43 more
core   +1 more source

Chemo-orbital evidence from SDSS/SEGUE G dwarf stars for a mixed origin of the Galactic thick disk

EPJ Web of Conferences, 2012
About 13,000 G dwarf within ...
van de Ven G., Liu C.
doaj   +1 more source

Formation and Evolution of the Disk System of the Milky Way: [alpha/Fe] Ratios and Kinematics of the SEGUE G-Dwarf Sample

, 2011
We employ measurements of the [alpha/Fe] ratio derived from low-resolution (R~2000) spectra of 17,277 G-type dwarfs from the SEGUE survey to separate them into likely thin- and thick-disk subsamples.
Abadi, Abazajian, Aihara, Allende Prieto, An, An, An, Andreas Just, Bond, Brian Yanny, Brook, Brook, Brook, Carollo, Casetti-Dinescu, Chiba, Constance M. Rockosi, Deokkeun An, Dierickx, Fuhrmann, Gilmore, Girard, Girard, Heather L. Morrison, Helio J. Rocha-Pinto, Ivezić, Jenkins, Jennifer A. Johnson, Jonathan Bird, Kazantzidis, Lee, Lee, Lee, Loebman, Minchev, Munn, Munn, Parker, Paul Harding, Ralph Schönrich, Reddy, Roškar, Roškar, Schlesinger, Sesar, Smolinski, Steinmetz, Timothy C. Beers, Villalobos, Wyse, Yanny, York, Yoshii, Young Sun Lee, Zwitter, Željko Ivezić   +55 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Unveiling a Young Thick Disk in the Milky Way

The Astrophysical Journal Letters
The thickness of a galaxy’s disk provides a valuable probe of its formation and evolution history. Observations of the Milky Way and local galaxies have revealed an ubiquitous disk structure with two distinctive components: an old thick disk and a ...
Jianhui Lian, Min Du, Shuai Lu, Bingqiu Chen, Gail Zasowski, Zhaoyu Li, Xiaojie Liao, Chao Liu   +7 more
doaj   +1 more source

Observation of Disk Scattering Slab Modes Transitioning to Disk Scattering Modes on Metal–Dielectric Heterostructures in the Terahertz Waveband

IEEE Photonics Journal, 2015
It has been demonstrated that, in the terahertz (THz) waveband, disk scattering slab modes (DSSMs) can exist in a heterostructure composed of a metallic subwavelength disk array coated on one surface of a dielectric slab.
Wei Wang, Jinsong Liu, Kejia Wang, Zhengang Yang, Kefei Ye   +4 more
doaj   +1 more source

The Panchromatic Hubble Andromeda Treasury. XX. The Disk of M31 is Thick

The Astronomical Journal, 2023
We present a new approach to measuring the thickness of a partially face-on stellar disk, using dust geometry. In a moderately-inclined disk galaxy, the fraction of reddened stars is expected to be 50% everywhere, assuming that dust lies in a thin ...
Julianne J. Dalcanton, Eric F. Bell, Yumi Choi, Andrew E. Dolphin, Morgan Fouesneau, Léo Girardi, David W. Hogg, Anil C. Seth, Benjamin F. Williams   +8 more
doaj   +1 more source

ON THE FORMATION OF GALACTIC THICK DISKS [PDF]

The Astrophysical Journal, 2015
5 pages, 2 figures, Accepted for publication in ApJ ...
I. Minchev, M. Martig, D. Streich, C. Scannapieco, R. S. de Jong, M. Steinmetz   +5 more
openaire   +2 more sources

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source