Results 31 to 40 of about 2,101,430 (372)

Chemical constraints on the formation of the Galactic thick disk

open access: yesEPJ Web of Conferences, 2012
We highlight some results from our detailed abundance analysis study of 703 kinematically selected F and G dwarf stars in the solar neighbourhood. The analysis is based on spectra of high-resolution (R = 45000 to 110 000) and high signal-to-noise (S/N ...
Feltzing S., Bensby T.
doaj   +1 more source

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

open access: yesThe 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   +8 more
doaj   +1 more source

Analytical and Semi-Analytical Formulas for the Self and Mutual Inductances of Concentric Coplanar Ordinary and Bitter Disk Coils

open access: yesPhysics, 2021
In this paper, analytical and semi-analytical formulas are presented for the self- and mutual inductance of thin ordinary disk coils and thin Bitter disk coils. The coils lie concentrically in a plane.
Slobodan Babic
doaj   +1 more source

Yb:CaF_2 thin-disk laser

open access: yesOptics Express, 2014
We present Ytterbium-doped CaF2 as a laser active material with good prospects for high-power operation in thin-disk laser configuration owing to its favorable thermal properties. Thanks to its broad emission bandwidth the material is also suitable for the generation of ultra-short pulses. The properties of the crystal as well as the challenges related
Wentsch, Katrin Sarah   +6 more
openaire   +4 more sources

Variational thermodynamics of relativistic thin disks [PDF]

open access: yesGeneral Relativity and Gravitation, 2015
Einstein-Maxwell system and equations for the sources added. Clarifications regarding other disk solutions included. Revised solutions for matter models.
Cesar S. Lopez-Monsalvo   +3 more
openaire   +4 more sources

Milky Way's thick and thin disk: Is there a distinct thick disk? [PDF]

open access: yesAstronomische Nachrichten, 2016
AbstractThis article is based on our discussion session on Milky Way models at the 592 WE‐Heraeus Seminar, Reconstructing the Milky Way's History: Spectroscopic Surveys, Asteroseismology and Chemodynamical Models. The discussion focused on the following question: “Are there distinct thick and thin disks?”.
Kawata, D, Chiappini, C
openaire   +4 more sources

The Galactic thin and thick disk [PDF]

open access: yesAstronomische Nachrichten, 2012
AbstractThe ongoing large spectroscopic surveys of the Milky Way such as SEGUE and RAVE have enabled us to take a fresh look at the structure of the Galactic thin and thick disks, and how their structure fits within the framework of structure formation via hierarchical clustering. In this article I will summarize some recent results mainly based in the
openaire   +3 more sources

Through Thick and Thin: Kinematic and Chemical Components in the Solar Neighbourhood [PDF]

open access: yes, 2010
We search for the existence of chemically-distinct stellar components in the solar neighbourhood using published data. Extending earlier work, we show that when the abundances of Fe, alpha elements, and the r-process element Eu are considered, stars ...
Aumer   +41 more
core   +3 more sources

Treating gravity in thin-disk simulations [PDF]

open access: yesAstronomy & Astrophysics, 2012
13 pages, 19 figures, accepted for publication in A& ...
Farzana Meru   +3 more
openaire   +4 more sources

The amazing progress of high-power ultrafast thin-disk lasers

open access: yesJournal of the European Optical Society-Rapid Publications, 2019
Ultrafast lasers continue to be at the forefront of many scientific breakthroughs and technological achievements and progress in the performance of these systems continue to open doors in many new and exciting interdisciplinary fields.
C. Saraceno   +3 more
semanticscholar   +1 more source

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