Results 11 to 20 of about 4,192,840 (340)
On the Relationship of the Degrees of Correspondence of Dialects and Distances
Languages, 2019 This study analyzes the relationship between the degrees of resemblance and distances between dialects based on several dialectological atlases. This analysis investigates various correspondence data with respect to total valid data in setting reference ...
Takuichiro Onishi
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ABYSS. I. Targeting Strategy for the APOGEE and BOSS Young Star Survey in SDSS-V
The Astrophysical Journal Supplement Series, 2023 The fifth iteration of the Sloan Digital Sky Survey is set to obtain optical and near-infrared spectra of ∼5 million stars of all ages and masses throughout the Milky Way. As a part of these efforts, APOGEE and BOSS Young Star Survey (ABYSS) will observe
Marina Kounkel +17 more
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Blue Stragglers After the Main Sequence [PDF]
, 2008 We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases.
Alison Sills +22 more
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The Astrophysical Journal, 2023 Asteroseismology has been used extensively in recent years to study the interior structure and physical processes of main-sequence stars. We consider prospects for using pressure modes (p-modes) near the frequency of maximum oscillation power to probe ...
Christopher J. Lindsay +2 more
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The Pre-main Sequence: Challenges and Prospects for Asteroseismology
Frontiers in Astronomy and Space Sciences, 2022 Stars do not simply pop up on the main sequence. Before the stars arrive on the zero-age main sequence, they form in the collapses of molecular clouds, gain matter through accretion processes, and compress their cores until hydrogen can burn in full ...
Konstanze Zwintz, Thomas Steindl
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Simulating the Sensitivity to Stellar Point Sources of Chandra X-Ray Observations
The Astrophysical Journal Supplement Series, 2023 The Chandra Cygnus OB2 Legacy Survey is a wide and deep X-ray survey of the nearby and massive Cygnus OB2 association. The survey has detected ∼8000 X-ray sources, the majority of which are pre-main-sequence X-ray-emitting young stars in the association ...
Nicholas J. Wright +4 more
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The Pre--Main-Sequence of A-type stars [PDF]
, 2004 Young A-type stars in the pre--main-sequence (PMS) evolutionary phase are particularly interesting objects since they cover the mass range (1.5-4 solar ma sses) which is most sensitive to the internal conditions inherited during the protostellar phase ...
Marconi, Marcella, Palla, Francesco
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Entropy Production of Main-Sequence Stars
Entropy, 2015 The entropy production (inside the volume bounded by a photosphere) of main-sequence stars is calculated based on B–V photometry data. The entropy-production distribution function and the dependences of entropy production on temperature and luminosity ...
Leonid M. Martyushev, Sergey N. Zubarev
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A non-main-sequence secondary in SY Cancri [PDF]
, 2005 Simultaneous spectroscopic and photometric observations of the Z Cam type dwarf nova SY Cancri were used to obtain absolute flux calibrations. A comparison of the photometric calibration with a wide slit spectrophotometric calibration showed that either ...
Dave V +4 more
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Hydrodynamics and Survivability during Post-main-sequence Planetary Engulfment
The Astrophysical Journal, 2023 The engulfment of substellar bodies (SBs), such as brown dwarfs and planets, by giant stars is a possible explanation for rapidly rotating giants, lithium-rich giants, and the presence of SBs in close orbits around subdwarfs and white dwarfs.
Ricardo Yarza +8 more
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