Gravitational waves from dark boson star binary mergers
Sign Up to like & getrecommendations! Published in 2018 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aae87c
Abstract: Gravitational wave astronomy might allow us to detect the coalescence of low-brightness astrophysical compact objects which are extremely difficult to be observed with current electromagnetic telescopes. Besides classical sources like black holes and neutron stars,… read more here.
Keywords: gravitational waves; dark boson; waves dark; boson stars ... See more keywords
Propagatory dynamics of electromagnetic drift waves in inhomogeneous spin degenerate compact objects plasmas
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/acd72d
Abstract: A theoretical analysis is carried out to investigate the dynamics of electromagnetic drift modes in non-uniform spin quantum magnetoplasmas found in degenerate compact objects. General dispersion relations are derived using spin quantum hydrodynamic equations, Poisson… read more here.
Keywords: electromagnetic drift; degenerate compact; propagatory dynamics; compact objects ... See more keywords
Bouncing compact objects. Part I. Quantum extension of the Oppenheimer-Snyder collapse
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2020/03/041
Abstract: This article proposes a generalization of the Oppenheimer-Snyder model which describes a bouncing compact object. The corrections responsible for the bounce are parameterized in a general way so as to remain agnostic about the specific… read more here.
Keywords: compact objects; oppenheimer snyder; geometry; bouncing compact ... See more keywords
Shadow images of compact objects in beyond Horndeski theory
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/05/007
Abstract: A beyond Horndeski theory is considered that admits wormholes, black holes and naked singularities. In this theory the shadow images of the black holes and the exotic compact objects (ECOs), illuminated by an optically and… read more here.
Keywords: shadow images; horndeski theory; compact objects; theory shadow ... See more keywords
What causes the absence of pulsations in Central Compact Objects in supernova remnants?
Sign Up to like & getrecommendations! Published in 2021 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/21/11/294
Abstract: Most young neutron stars belonging to the class of Central Compact Objects (CCOs) in supernova remnants do not have known periodicities. We investigated seven such CCOs to understand the common reasons for the absence of… read more here.
Keywords: supernova remnants; compact objects; geometry; central compact ... See more keywords
Gas in Globular Clusters I: Gas Retention and Its Possible Consequences
Sign Up to like & getrecommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staf1925
Abstract: Globular clusters host complex stellar populations whose chemical signatures suggest early (3 × 106 – 109 yr) retention and reprocessing of stellar ejecta, yet direct evidence for intracluster gas is lacking. Here we present a unified… read more here.
Keywords: globular clusters; gas retention; gas globular; compact objects ... See more keywords
The host galaxies of double compact objects merging in the local Universe
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2663
Abstract: We investigate the host galaxies of compact objects merging in the local Universe, by combining the results of binary population-synthesis simulations with the Illustris cosmological box. Double neutron stars (DNSs) merging in the local Universe… read more here.
Keywords: merging local; host galaxies; compact objects; objects merging ... See more keywords
The influence of the distribution of cosmic star formation at different metallicities on the properties of merging double compact objects
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty3087
Abstract: Binaries that merge within the local Universe originate from progenitor systems that formed at different times and in various environments. The efficiency of formation of double compact objects is highly sensitive to metallicity of the… read more here.
Keywords: double compact; formation; star formation; compact objects ... See more keywords
Analysis of Born-Infeld boson compact objects
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review D"
DOI: 10.1103/6mtm-bgy1
Abstract: In this paper we study gravitationally bound compact objects sourced by a string theory inspired Born-Infeld scalar field. Unlike many of their canonical scalar field counterparts, these ``boson stars''do not have to extend out to… read more here.
Keywords: analysis; born infeld; compact objects; boson ... See more keywords
Probing resonant excitations in exotic compact objects via gravitational waves
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.024016
Abstract: Gravitational waves (GWs) from presumed binary black hole mergers are now being detected on a regular basis with the Advanced LIGO and Advanced Virgo interferometers. Exotic compact objects (ECOs) have been proposed that differ from… read more here.
Keywords: probing resonant; exotic compact; compact objects; excitations exotic ... See more keywords
Compact objects in and beyond the standard model from nonperturbative vacuum scalarization
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.109.095006
Abstract: We consider a theory in which a real scalar field is Yukawa-coupled to a fermion and has a potential with two non-degenerate vacua. If the coupling is sufficiently strong, a collection of N fermions deforms… read more here.
Keywords: vacuum; vacuum scalarization; beyond standard; standard model ... See more keywords