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The formation of $K^-$ and $\bar K^0$ condensation in $\beta$-equilibrated hyperonic matter is investigated within a relativistic mean field model. In this model, baryon-baryon and (anti)kaon-baryon interactions are mediated by the exchange…

Astrophysics · Physics 2009-11-06 Sarmistha Banik , Debades Bandyopadhyay

We have constructed models of uniformly rotating compact stars including hyperons, Bose-Einstein condensates of antikaons and quarks. First order phase transitions from hadronic to antikaon condensed matter and then to quark matter are…

Astrophysics · Physics 2010-11-19 Sarmistha Banik , Matthias Hanauske , Debades Bandyopadhyay , Walter Greiner

Bose-Einstein condensation of antikaons in cold and dense beta-equilibrated matter under the influence of strong magnetic fields is studied within a relativistic mean field model. For magnetic fields $> 5 \times 10^{18}$G, the phase spaces…

Astrophysics · Physics 2014-10-13 Prantick Dey , Abhijit Bhattacharyya , Debades Bandyopadhyay

We discuss $\beta$-equilibrated and charge neutral matter involving hyperons and $\bar K$ condensates within relativistic models. It is observed that populations of baryons are strongly affected by the presence of antikaon condensates.…

Nuclear Theory · Physics 2009-09-29 Debades Bandyopadhyay

We investigate the role of higher order couplings, along with the condensation of antikaons ($K^-$ and $\bar K^0$), on the properties of neutron star (NS). We employ extended versions of the relativistic mean-field model, in which…

Nuclear Theory · Physics 2013-02-08 Neha Gupta , P. Arumugam

We study the problem of extracting information about composition and equation of state of dense matter in neutron star interior using axial w-modes. We determine complex frequencies of axial w-modes for a set of equations of state involving…

High Energy Astrophysical Phenomena · Physics 2009-08-12 Debarati Chatterjee , Debades Bandyopadhyay

We compute a new equation of state table including Bose-Einstein condensate of $K^{-}$ mesons for core collapse supernova and neutron star merger simulations. Nuclei and interacting nucleons in non-uniform matter is described in an extended…

High Energy Astrophysical Phenomena · Physics 2021-04-28 Tuhin Malik , Sarmistha Banik , Debades Bandyopadhyay

We have constructed equations of state involving various exotic forms of matter with large strangeness fraction such as hyperon matter, Bose-Einstein condensates of antikaons and strange quark matter. First order phase transitions from…

Nuclear Theory · Physics 2009-11-10 Sarmistha Banik , Matthias Hanauske , Debades Bandyopadhyay

We investigate the condensation of charged $K^-$ meson and neutral $\bar K^0$ meson in dense neutron star matter. Calculations are performed in relativistic mean field models in which both the baryon-baryon and (anti)kaon-baryon…

Astrophysics · Physics 2009-10-31 Subrata Pal , Debades Bandyopadhyay , Walter Greiner

Recent measurements of neutron star mass from several candidates (PSR J$1614-2230$, PSR J$0348+0432$, MSP J$0740+6620$) set the lower bound on the maximum possible mass for this class of compact objects $\sim 2$ M$_\odot$. Existence of…

High Energy Astrophysical Phenomena · Physics 2020-12-04 Vivek Baruah Thapa , Monika Sinha

We investigate the viability of a new type of compact star whose main constituent is a Bose-Einstein condensate of charged pions. Several different setups are considered, where a gas of charged leptons and neutrinos is also present. The…

High Energy Physics - Phenomenology · Physics 2018-12-05 Bastian B. Brandt , Gergely Endrodi , Eduardo S. Fraga , Mauricio Hippert , Jurgen Schaffner-Bielich , Sebastian Schmalzbauer

We investigate $K^-$ and $\bar K^0$ condensation in $\beta$-equilibrated hyperonic matter within a density dependent hadron field theoretical model. In this model, baryon-baryon and (anti)kaon-baryon interactions are mediated by the…

Astrophysics · Physics 2009-11-07 Sarmistha Banik , Debades Bandyopadhyay

We investigate first order phase transitions from $\beta$-equilibrated hadronic matter to color flavor locked quark matter in compact star interior. The hadronic phase including hyperons and Bose-Einstein condensate of $K^-$ mesons is…

Astrophysics · Physics 2009-11-07 Sarmistha Banik , Debades Bandyopadhyay

We investigate the structure and stability properties of compact astrophysical objects that may be formed from the Bose-Einstein condensation of dark matter. Once the critical temperature of a boson gas is less than the critical…

Cosmology and Nongalactic Astrophysics · Physics 2013-03-25 X. Y. Li , T. Harko , K. S. Cheng

By using a simple thermodynamical method we confirm the finding of Chavanis and Harko that stable Bose-Einstein condensate stars can form. However, by using a thermodynamically consistent boson equation of state, we obtain a less massive…

Solar and Stellar Astrophysics · Physics 2014-12-24 S. Latifah , A. Sulaksono , T. Mart

We investigate the properties of an antikaon in medium, regarding itas a MIT bag. We first construct the MIT bag model for a kaon with$\sigma^*$ and $\phi$ in order to describe the interaction of$s$-quarks in hyperonic matter in the…

Nuclear Theory · Physics 2010-04-30 C. Y. Ryu , C. H. Hyun , S. W. Hong

We analyze the possibility that due to their superfluid properties some compact astrophysical objects may contain a significant part of their matter in the form of a Bose-Einstein condensate. To study the condensate we use the…

Solar and Stellar Astrophysics · Physics 2013-05-30 P. H. Chavanis , T. Harko

We study the melting of a $K^-$ condensate in hot and neutrino-trapped protoneutron stars. In this connection, we adopt relativistic field theoretical models to describe the hadronic and condensed phases. It is observed that the critical…

High Energy Astrophysical Phenomena · Physics 2015-06-05 S. Banik , R. Nandi , D. Bandyopadhyay

We investigate nuclear matter equations of state in neutron star with kaon condensation. It is generally known that the existence of kaons in neutron star makes the equation of state soft so that the maximum mass of neutron star is not…

Nuclear Theory · Physics 2015-06-18 Yeunhwan Lim , Kyujin Kwak , Chang Ho Hyun , Chang-Hwan Lee

This study investigates the effects of strong magnetic fields on antikaon condensation in neutron star matter using the extended FSUGold model model. It is found that the presence of strong magnetic fields alters the threshold density of…

Nuclear Theory · Physics 2025-10-21 Fei Wu , Chen Wu
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