Results 1 to 10 of about 199,684 (128)

On Exotic Objects Made of Dark Energy and Dark Matter: Mass-to-Radius Profiles and Tidal Love Numbers

open access: yesGalaxies, 2023
We investigate some properties of exotic spherical configurations made of dark matter and dark energy. For the former, we adopt a polytropic equation-of-state, while for the latter, we adopt the extended Chaplygin gas equation-of-state.
Camila Sepúlveda, Grigoris Panotopoulos
doaj   +1 more source

Analyzing Binary Relationships of Identity Labels Using Distributional Semantic Models

open access: yesIperstoria, 2023
Following the shift towards quantitative, corpus-based analysis in queer linguistics, I examine the usage of identity labels to explore the binary relationships and predicted normative effects in the case of the online community r/lgbt, a subreddit ...
Hunter Youngquist
doaj   +1 more source

Beyond binaries and before becoming: Reconsidering resistance in UK higher education

open access: yesPRISM, 2021
 Drawing from the tensions within non-representational and human practice perspectives on affect, this paper continues the task of re-conceptualising academic-level resistance in the context of UK higher education.
Mollie Baker
doaj   +4 more sources

Under-Developed and Under-Utilized Eclipsing Binary Model Capabilities [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
Existing but largely unused binary star model capabilities are examined. An easily implemented scheme is parameterization of starspot growth and decay that can stimulate work on outer convection zones and their dynamos.
R. E. Wilson
doaj   +1 more source

THE DEPENDENCE OF ON- AND OFF-STATE GENERATIONS IN CLASSICAL MICROQUASARS FROM THE DISK DENSITY. 3-D NUMERICAL HYDRODYNAMICAL SIMULATIONS OF THE HIGH AND LOW MASS ACCRETION RATE IN ACCRETION DISK IN MICROQUASAR CYG X-1

open access: yesOdessa Astronomical Publications, 2018
In the present work we have computed and have compared the on- and off- generations in low and high mass accretion rate accretion disks. The comparison shows that in the case of low mass accretion rate in disk (10−10 solar mass per year) the ON-state time
V. Nazarenko
doaj   +1 more source

Optical Observations with Milliarcsecond Resolution of Stars, Their Environments and Companions [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
Observations with milliarsecond resolution using the Navy Optical Interferometer have been obtained for a number of stellar systems which include high-mass binaries, eclipsing binaries, and radio stars.
Jason J. Sanborn, Robert T. Zavala
doaj   +1 more source

EITHER/ OR, AND BEYOND [PDF]

open access: yesIncursiuni în imaginar, 2023
Reality and fiction build a binary which shared the fate of dualist thinking in general in the postmodernist age, dominated by deconstruction. The climactic point was probably reached by the fabrication of lens which magnify reality.
Maria-Ana Tupan
doaj   +1 more source

Improved Detection Rates for Close Binaries Via Astrometric Observations of Gravitational Microlensing Events [PDF]

open access: yes, 1999
In addition to constructing a Galactic matter mass function free from the bias induced by the hydrogen-burning limit, gravitational microlensing allows one to construct a mass function which is less affected by the problem of unresolved binaries (Gaudi &
Alard C.   +12 more
core   +3 more sources

Asteroseismic Analysis of δ Scuti Components of Binary Systems: The Case of KIC 8504570

open access: yesGalaxies, 2020
The present work concerns the Asteroseismology of the Kepler-detached eclipsing binary KIC 8504570. Particularly, it focuses on the pulsational behaviour of the oscillating component of this system and the estimation of its physical parameters in order ...
Alexios Liakos, Panagiotis Niarchos
doaj   +1 more source

Evaluating GAIA performances on eclipsing binaries. I. Orbits and stellar parameters for V505 Per, V570 Per and OO Peg [PDF]

open access: yes, 2001
The orbits and physical parameters of three detached, double-lined A-F eclipsing binaries have been derived combining H_P, V_T, B_T photometry from the Hipparcos/Tycho mission with 8500-8750 Ang ground-based spectroscopy, mimicking the photometric ...
A. Prša   +26 more
core   +4 more sources

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