Matches in SemOpenAlex for { <https://semopenalex.org/work/W4385331635> ?p ?o ?g. }
- W4385331635 endingPage "1519" @default.
- W4385331635 startingPage "1498" @default.
- W4385331635 abstract "We compile a catalogue of low-mass and high-mass X-ray binaries, some recently reported binaries that likely host a neutron star (NS) or a black hole (BH), and binary pulsars (a pulsar and a non-degenerated companion) that have measured systemic radial velocities ($gamma$). Using Gaia and radio proper motions together with $gamma$, we integrate their Galactic orbits and infer their post-supernova (post-SN) 3D peculiar velocities ($v_mathrm{pec}^{z=0}$ at Galactic plane crossing); these velocities bear imprint of natal kicks that compact objects received at birth. With the sample totalling 85 objects, we model the overall distribution of $v_mathrm{pec}^{z=0}$ and find a two-component Maxwellian distribution with a low- ($sigma_v approx 21,mathrm{km~s^{-1}}$) and a high-velocity ($sigma_v approx 107,mathrm{km~s^{-1}}$) component. A further comparison between distributions of binary subgroups suggests that binaries hosting high-mass donors/luminous companions mostly have $v_mathrm{pec}^{z=0}lesssim 100,mathrm{km~s^{-1}}$, while binaries with low-mass companions exhibit a broader distribution that extends up to $sim 400,mathrm{km~s^{-1}}$. We also find significant anti-correlations of $v_mathrm{pec}^{z=0}$ with binary total mass ($M_mathrm{tot}$) and orbital period ($P_mathrm{orb}$), at over 99% confidence. Specifically, our fit suggests $v_mathrm{pec}^{z=0}propto M_mathrm{tot}^{-0.5}$ and $v_mathrm{pec}^{z=0}propto P_mathrm{orb}^{-0.2}$. Discussions are presented on possible interpretation of the correlations in the context of kinematics and possible biases. The sample should enable a range of follow-up studies on compact object binary kinematics and evolution." @default.
- W4385331635 created "2023-07-29" @default.
- W4385331635 creator A5023447906 @default.
- W4385331635 creator A5025899056 @default.
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- W4385331635 creator A5063041634 @default.
- W4385331635 creator A5071066472 @default.
- W4385331635 creator A5079200439 @default.
- W4385331635 creator A5092474562 @default.
- W4385331635 date "2023-07-27" @default.
- W4385331635 modified "2023-10-14" @default.
- W4385331635 title "Evidence for mass-dependent peculiar velocities in compact object binaries: towards better constraints on natal kicks" @default.
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