In this work, we investigate the tidal deformability of a neutron star admixed with dark matter, modeled as massive, self-interacting, complex scalar field. We derive equations to compute full Einstein-Hilbert-Klein-Gordon system self-consistently, and probe influence field mass self-interaction strength on total properties combined system. find that matter corelike configurations lead more compact objects smaller deformability, cloudlike larger deformability. Electromagnetic observations...

Intermediate Mass Ratio Inspirals (IMRIs) will be observable with space-based gravitational wave detectors such as the Laser Interferometer Space Antenna (LISA). To this end, environmental effects in systems have to modeled and understood. These can include (baryonic) accretion disks dark matter (DM) overdensities, so called spikes. For first time, we model an IMRI system both disk a DM spike present compare their on inspiral emitted signal. We study eccentricity evolution, employ braking...

The increasingly significant tensions within $\Lambda$CDM, combined with the lack of detection dark matter (DM) in laboratory experiments, have boosted interest non-minimal sectors, which are theoretically well-motivated and inspire new search strategies for DM. Here we consider, first time, possibility DM having simultaneous interactions photons, baryons, radiation (DR). We developed a efficient version Boltzmann code CLASS that allows one species to multiple interaction channels. With this...

Inspirals of an intermediate mass black hole (IMBH) and a solar type object will be observable by space based gravitational wave detectors such as the Laser Interferometer Space Antenna. A dark matter overdensity around IMBH---a spike---can affect orbital evolution system. We consider here ratio inspirals on eccentric orbits, experiencing dynamical friction spike. find that including relative velocities particles, tends to circularize orbit, in contrast previous inquiries. derive general...

We apply the Lagrangian method to study post-Newtonian evolution of a compact binary system with environmental effects, including dark matter spike, and obtain resulting gravitational wave emission. This formalism allows one incorporate effects up any desired known order, as well other effect around binary, long their dissipation power or force formulae are known. In particular, in this work, we employ black hole–black hole mass ratio 105 by order 1PN 2.5PN, relativistic dynamical friction....

BACKGROUND:Organ shortage is a major problem in liver transplantation. The use of extended criteria donors has become the most important strategy for increasing donor pool. However, role body mass index not yet been thoroughly investigated. aim our study was to compare outcomes after transplantation patients who received from with BMI <30, 30–39, and ≥40, special regard incidence early allograft dysfunction (EAD) primary non-function (PNF). MATERIAL AND METHODS:One hundred sixty-three...

This paper studies the determinants of German direct investment in Central and Eastern European countries during period 1996–2016 using augmented Knowledge Capital model to identify main reasons for foreign (FDI). The empirical results show increasing multinational enterprise (MNE) activity with growth country-size growing similarities countries, which supports horizontal reason FDI; while difference share skilled labor force associated vertical has no effect. Furthermore, estimation...

In this dissertation, we look at environmental effects in extreme and intermediate mass ratio inspirals into massive black holes. these systems, stellar compact objects orbit holes lose orbital energy due to gravitational wave emission other dissipative forces. We explore interactions with dark matter spikes, distributions, accretion disks, combine compare them. discuss the existence properties of spikes presence effects. The signatures effects, such as phase space flow, dephasing,...

In this work we investigate the tidal deformability of a neutron star admixed with dark matter, modeled as massive, self-interacting, complex scalar field. We derive equations to compute full Einstein-Hilbert-Klein-Gordon system self-consistently, and probe influence field mass self-interaction strength on total properties combined system. find that matter core-like configurations lead more compact objects smaller deformability, cloud-like larger deformability. Electromagnetic observations...

We present a simple but powerful Lagrangian method that can be used to study the post-Newtonian evolution of compact binary system with environment, including dark matter spike, around it, and obtain resulting gravitational wave emission. This formalism allows one incorporate effects up any desired known order, as well other environmental effect binary, long their dissipation power or force formulae are known. In particular, in this work, we employ black hole-black hole mass ratio $10^5$, by...

Intermediate Mass Ratio Inspirals (IMRIs) will be observable with space-based gravitational wave detectors such as the Laser Interferometer Space Antenna (LISA). To this end, environmental effects in systems have to modeled and understood. These can include (baryonic) accretion disks dark matter (DM) overdensities, so called spikes. For first time, we model an IMRI system both disk a DM spike present compare their on inspiral emitted signal. We study eccentricity evolution, employ braking...