Results 31 to 40 of about 320,327 (338)

Cosmological Constant Effects on the Properties of Mass Twin Compact Stars [PDF]

open access: yesEPJ Web of Conferences, 2019
We present a systematic investigation of the cosmological constant effects in compact stars interiors in the framework of Einstein’s gravity. Consideration of a cosmological constant Λ in compact stars is motivated by the mechanism of acceleration of the
Khosravi Largani Noshad   +1 more
doaj   +1 more source

Thermal evolution of compact stars [PDF]

open access: yesNuclear Physics A, 1996
41 pages, revised ...
Schaab, Ch.   +3 more
openaire   +2 more sources

Compact star in general F(R) gravity: Inevitable degeneracy problem and non-integer power correction

open access: yesPhysics Letters B, 2022
We investigate a compact star in the general F(R) gravity. Developing a novel formulation in the spherically symmetric and static space-time with the matter, we confirm that an arbitrary relation between the mass M and the radius Rs of the compact star ...
Kota Numajiri   +2 more
doaj   +1 more source

POX 186: the ultracompact Blue Compact Dwarf Galaxy reveals its nature [PDF]

open access: yes, 1999
High resolution, ground based R and I band observations of the ultra compact dwarf galaxy POX 186 are presented. The data, obtained with the ESO New Technology Telescope (NTT), are analyzed using a new deconvolution algorithm which allows one to resolve ...
Courbin, F.   +3 more
core   +2 more sources

Dark energy star in gravity's rainbow

open access: yesPhysics Letters B, 2022
The concept of dark energy can be a candidate for preventing the gravitational collapse of compact objects to singularities. According to the usefulness of gravity's rainbow in UV completion of general relativity (by providing a new description of ...
A. Bagheri Tudeshki   +2 more
doaj   +1 more source

Effect of magnetic field on the strange star [PDF]

open access: yes, 1995
We study the effect of a magnetic field on the strage quark matter and apply to strange star. We found that the strange star becomes more compact in presence of strong magnetic field.Comment: 10 pages (LaTex) and 3 postscript figures available on ...
B. Datta   +21 more
core   +3 more sources

Some remarks on Pixley-Roy hyperspaces

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
In this paper, we study cellular-compact, cellular-Lindel\"of, strongly star-Hurewicz, strongly star-Rothberger, strongly star-Menger spaces on hyperspaces with the Pixley-Roy topology.
Quoc Tuyen Luong   +2 more
doaj   +1 more source

Compact Stars in Eddington Inspired Gravity [PDF]

open access: yesPhysical Review Letters, 2011
A new, Eddington inspired theory of gravity was recently proposed by Banados and Ferreira. It is equivalent to General Relativity in vacuum, but differs from it inside matter. This viable, one parameter theory was shown to avoid cosmological singularities and turns out to lead to many other exciting new features that we report here.
PANI, PAOLO   +2 more
openaire   +5 more sources

Star-formation rate in compact star-forming galaxies

open access: yes, 2018
We use the data for the Hbeta emission-line, far-ultraviolet (FUV) and mid-infrared 22 micron continuum luminosities to estimate star formation rates averaged over the galaxy lifetime for a sample of about 14000 bursting compact star-forming galaxies ...
Izotov, Y. I., Izotova, I. Y.
core   +1 more source

X-Ray Observations of Low-Mass X-Ray Binaries: Accretion Instabilities on Long and Short Time-Scales [PDF]

open access: yes, 2001
X-rays trace accretion onto compact objects in binaries with low mass companions at rates ranging up to near Eddington. Accretion at high rates onto neutron stars goes through cycles with time-scales of days to months.
Swank, Jean H.
core   +2 more sources

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