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pro vyhledávání: '"Dey, Mira"'
According to the recycling scenario, millisecond pulsars (MSPs) have evolved from low-mass X-ray binaries (LMXBs). Their orbits are expected to be circular due to tidal interactions during the binary evolution, as observed in most of the binary MSPs.
Externí odkaz:
http://arxiv.org/abs/1505.04644
Publikováno v:
Mon. Not. R. Astron. Soc., 431, 3216-3221 (2013)
There are three categories of stars whose masses have been found accurately in recent times: (1) two for which Shapiro delay is used which is possible due to GR light bending as the partner is heavy : PSR J1614-2230 and PSR J1903+0327 (2) six eclipsi
Externí odkaz:
http://arxiv.org/abs/1303.1956
Publikováno v:
New Astronomy, 17, 43-45 (2012)
We suggest that the mass of four compact stars SAX J1808.4$-$3658, KS 1731$-$260, SAX J1750.8$-$2900 and IGR J17191$-$2821 can be determined from the difference in the observed kiloHertz quasi periodic oscillations (kHz QPO-s) of these stars. The ste
Externí odkaz:
http://arxiv.org/abs/1102.2088
Publikováno v:
Mon. Not. R. Astron. Soc. 399 (2009) 822
The single glitch observed in PSR B1821-24, a millisecond pulsar in M28, is unusual on two counts. First, the magnitude of this glitch is at least an order of magnitude smaller ($\Delta \nu / \nu \sim 10^{-11}$) than the smallest glitch observed to d
Externí odkaz:
http://arxiv.org/abs/0904.4559
Publikováno v:
AIP Conf.Proc.968:209-211,2008
We have studied strange star properties both at zero temperature and at finite temperatures and searched signatures of strange stars in gamma-ray, x-ray and radio astronomy. We have a set of Equations of State (EoS) for strange quark matter (SQM) and
Externí odkaz:
http://arxiv.org/abs/0802.1337
Autor:
Bagchi, Manjari, Dey, Jishnu, Dey, Mira, Gangopadhyay, Taparati, Laha, Sibasish, Ray, Subharthi, Sinha, Monika
Publikováno v:
Phys.Lett.B666:145-149,2008
High energy density ($\eps$) and temperature (T) links general relativity and hydrodynamics leading to a lower bound for the ratio of shear viscosity ($\eta$) and entropy density ($s$). We get the interesting result that the bound is saturated in the
Externí odkaz:
http://arxiv.org/abs/0705.4645
Autor:
Laha, Sibasish, Gangopadhyay, Taparati, Bagchi, Manjari, Dey, Mira, Dey, Jishnu, Sinha, Monika, Ray, Subharthi
At finite temperature (T) there is a link with general relativity and hydrodynamics that leads to a lower bound for the ratio of shear viscosity and entropy density (\eta/s). We find that the bound is saturated in the simple model for quark matter th
Externí odkaz:
http://arxiv.org/abs/hep-ph/0702086
Parity doubling is observed in hadron states around 1.5 GeV - and the estimated energy density is found to be high. When a large excitation energy is available and the pions decouple from the quarks, the QCD interaction is still not perturbative. And
Externí odkaz:
http://arxiv.org/abs/hep-ph/0610349
Publikováno v:
New Astron.14:37,2009
One interesting method of constraining the dense matter Equations of State is to measure the advancement of the periastron of the orbit of a binary radio pulsar (when it belongs to a double neutron star system). There is a great deal of interest on a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610448
The pions decouple from quarks while their coupling to nucleons $g_{\pi NN}$ remains unchanged at high density. This will have consequences for some recent papers.
Comment: Addendum to hep-ph/0505139 [Phys. Lett. B 618 (2005) 115, DOI: 10.1016/j
Comment: Addendum to hep-ph/0505139 [Phys. Lett. B 618 (2005) 115, DOI: 10.1016/j
Externí odkaz:
http://arxiv.org/abs/hep-ph/0610076