Astrophysics – Page 551 – Kavli Institute Pre-Print Publications

Concordance between observations and simulations in the evolution of the mass relation between supermassive black holes and their host galaxies

Posted by klaurent May 9, 2022May 24, 2022Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Xuheng Ding, John D. Silverman, Tommaso Treu, Junyao Li, Aklant K. Bhowmick | Summary: We carry out a comparative analysis of the relation between the mass of supermassive black holes (BHs) and the stellar mass of their host galaxies at $0.2<z<1.7$ using well-matched observations and multiple […]

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Concordance between observations and simulations in the evolution of the mass relation between supermassive black holes and their host galaxies

Posted by klaurent May 9, 2022Tokyo

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Insights into the origin of halo mass profiles from machine learning

Posted by klaurent May 9, 2022Stanford

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Luisa Lucie-Smith, Susmita Adhikari, Risa H. Wechsler, , | Summary: The mass distribution of dark matter haloes is the result of the hierarchical growth of initial density perturbations through mass accretion and mergers. We use an interpretable machine-learning framework to provide physical insights into the origin […]

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A neural network model for timing control with reinforcement

Posted by klaurent May 9, 2022Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Jing Wang, Yousuf El-Jayyousi, Ilker Ozden, , | Summary: How do humans and animals perform trial-and-error learning when the space of possibilities is infinite? In a previous study, we used an interval timing production task and discovered an updating strategy in which the agent adjusted the behavioral […]

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Kepler K2 and TESS observations of two magnetic cataclysmic variables: The new asynchronous polar SDSS J084617.11+245344.1 and Paloma

Posted by klaurent May 5, 2022May 17, 2022MIT

Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Colin Littlefield, D. W. Hoard, Peter Garnavich, Paula Szkody, Paul A. Mason | Summary: There have been relatively few published long-duration, uninterrupted light curves of magnetic cataclysmic variable stars in which the accreting white dwarf’s rotational frequency is slightly desynchronized from the binary orbital frequency (asynchronous […]

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Proximity-Induced Superconductivity in Epitaxial Topological Insulator/Graphene/Gallium Heterostructures

Posted by klaurent May 5, 2022Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Cequn Li, Yi-Fan Zhao, Alexander Vera, Omri Lesser, Hemian Yi | Summary: The introduction of superconductivity to the Dirac surface states of a topological insulator leads to a novel state of matter known as a topological superconductor. A topological superconductor may host Majorana zero modes, the braiding […]

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Soft and Hard Constrained Parametric Generative Schemes for Encoding and Synthesizing Airfoils

Posted by klaurent May 5, 2022Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Hairun Xie, Jing Wang, Miao Zhang, , | Summary: Traditional airfoil parametric technique has significant limitation in modern aerodynamic optimization design.There is a strong demand for developing a parametric method with good intuitiveness, flexibility and representative accuracy. In this paper, two parametric generative schemes based on deep […]

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A 62-minute orbital period black widow binary in a wide hierarchical triple

Posted by klaurent May 4, 2022MIT

Kavli Affiliate: Erin Kara | First 5 Authors: Kevin B. Burdge, Thomas R. Marsh, Jim Fuller, Eric C. Bellm, Ilaria Caiazzo | Summary: Over a dozen millisecond pulsars are ablating low-mass companions in close binary systems. In the original "black widow", the 8-hour orbital period eclipsing pulsar PSR J1959+2048 (PSR B1957+20), high energy emission originating […]

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Electromagnetic Follow-ups of Binary Neutron Star Mergers with Early Warnings from Decihertz Gravitational-wave Observatories

Posted by klaurent May 4, 2022Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Yacheng Kang, Chang Liu, Lijing Shao, , | Summary: We investigate the prospects of electromagnetic follow-ups for binary neutron star (BNS) mergers, with the help of early warnings from decihertz gravitational-wave (GW) observatories, B-DECIGO and DO-Optimal. Extending our previous work in Liu et al. (2022), we not […]

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Electromagnetic Follow-up Observations of Binary Neutron Star Mergers with Early Warnings from Decihertz Gravitational-wave Observatories

Posted by klaurent May 4, 2022Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Yacheng Kang, Chang Liu, Lijing Shao, , | Summary: We investigate the prospects of electromagnetic follow-up observations for binary neutron star (BNS) mergers, with the help of early warnings from decihertz gravitational-wave (GW) observatories, B-DECIGO and DO-Optimal. Extending the previous work, we not only give quick assessments […]

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