Results 151 to 160 of about 44,379 (345)
Separation of the intrinsic and interstellar linear polarization components of southern hemisphere early-type emission-line stars [PDF]
, 1979 Ian S. McLean, David A. Clarke
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Accretion Properties of the Young Brown Dwarf 2MASS J08440915-7833457
The Astrophysical JournalWe present Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet (FUV) and Space Telescope Imaging Spectrometer (STIS) optical observations toward the young accreting brown dwarf 2MASS J08440915-7833457 (J0844) from the UV Legacy Library of ...
Toni V. Panzera +4 more
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Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
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Wolf-Rayet Stars in the Milky Way, the Large Magellanic Cloud, and Emission-Line Galaxies [PDF]
, 1993 William D. Vacca
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Classification of Wolf–Rayet Stars from LAMOST DR10
The Astrophysical Journal Supplement SeriesWolf–Rayet (WR) stars are highly evolved descendants of the most massive initial stellar populations, serving as essential tracers in stellar evolution. Despite the progress made in their study, a more comprehensive population census is still required to
Jirui Chang +7 more
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, 2014 ChH highlights financial support of the European Community under the FP7 by an ERC starting grant. SLC acknowledges financial support of University of LeicesterBrown Dwarfs are the coolest class of stellar objects known to date. Our present perception is
Casewell, Sarah, Helling, Christiane
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Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
wiley +1 more source
Modeling the Hαline emission around classical T Tauri stars using magnetospheric accretion and disk wind models [PDF]
, 2010 G. H. R. A. Lima +4 more
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HR 4049: A Spectroscopic Analysis of a Post-AGB Object
GalaxiesA new spectroscopic study of HR 4049, a post-AGB star in a binary system, based on échelle spectra taken between 2019 and 2025 with the 0.81 m telescope of the Three College Observatory (North Carolina, USA) at a resolution of R ≈ 12,000 is reported.
Shakhida T. Nurmakhametova +7 more
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Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source