Constraining values of bag constant for strange star candidates

A Aziz, S Ray, F Rahaman, M Khlopov… - International Journal of …, 2019 - World Scientific
We provide a strange star model under the framework of general relativity by using a
general linear equation of state (EOS). The solution set thus obtained is employed on …

On the lack of thermal emission from the quiescent black hole XTE J1118+ 480: evidence for the event horizon

JE McClintock, R Narayan… - The Astrophysical …, 2004 - iopscience.iop.org
A soft component of thermal emission is very commonly observed from the surfaces of
quiescent, accreting neutron stars. We searched with Chandra for such a surface component …

Superbursts from strange stars

D Page, A Cumming - The Astrophysical Journal, 2005 - iopscience.iop.org
Recent models of carbon ignition on accreting neutron stars predict superburst ignition
depths that are an order of magnitude larger than those observed. We explore a possible …

Acoustic perturbations on steady spherical accretion in Schwarzschild geometry

T Naskar, N Chakravarty, JK Bhattacharjee… - Physical Review D …, 2007 - APS
The stationary background flow in the spherically symmetric infall of a compressible fluid,
coupled to the space-time defined by the static Schwarzschild metric, has been subjected to …

Origin and Interpretation of Kilohertz Quasi-periodic Oscillations from Strange Stars in an X-Ray Binary System: Theoretical Hydrodynamical Description

B Mukhopadhyay, S Ray, J Dey… - The Astrophysical …, 2003 - iopscience.iop.org
We model and interpret kilohertz quasi-periodic oscillations (QPOs) from the
hydrodynamical description of an accretion disk around a rapidly rotating compact strange …

Compact strange stars with a medium dependence in gluons at finite temperature

M Bagchi, S Ray, M Dey, J Dey - Astronomy & Astrophysics, 2006 - aanda.org
Aims. The possible existence of strange stars in the universe will help in the understanding
of various properties of quantum chromodynamics, like asymptotic freedom and chiral …

A model finding a new Richardson potential with different scales for confinement and asymptotic freedom, by fitting the properties of Δ++ and Ω−

M Bagchi, M Dey, S Daw, J Dey - Nuclear Physics A, 2004 - Elsevier
Phenomenological Richardson potential has built in asymptotic freedom (AF in short) and
confinement, with only one parameter Λ in the potential. But it is known that the scales of AF …

Have we observed the skin vibration of realistic strange stars (ReSS)?

M Sinha, J Dey, M Dey, S Ray… - Modern Physics Letters …, 2003 - World Scientific
Skin vibration of ReSS and consequent resonance absorption can account for the
absorption lines in the spectrum of X-ray emission from many compact stellar objects and in …

Strange pulsar hypothesis

RD Ray Mandal, M Sinha, M Bagchi… - Monthly Notices of …, 2006 - academic.oup.com
It appears that there is a genuine shortage of radio pulsars with surface magnetic fields
significantly smaller than∼ 108 G. We propose that the pulsars with very low magnetic fields …

Possible evidence of surface vibration of strange stars from stellar observations

S Ray, J Dey, M Dey, S Bhowmick - Monthly Notices of the Royal …, 2004 - academic.oup.com
Emission lines in the eV and keV range by certain stellar candidates from their recent
analysis invoke the question of their possible origin. The stars under consideration are 4U …