Search Results - "Lu, Shengdong"
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Grey Wolf Particle Swarm Optimized Pump–Motor Servo System Constant Speed Control Strategy
Published in Machines (Basel) (01-01-2023)“…Aiming to solve the problems of poor dynamic response characteristics and the weak anti-jamming capability of the conventional proportional–integral–derivative…”
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MaNGA DynPop – I. Quality-assessed stellar dynamical modelling from integral-field spectroscopy of 10K nearby galaxies: a catalogue of masses, mass-to-light ratios, density profiles, and dark matter
Published in Monthly notices of the Royal Astronomical Society (11-05-2023)“…ABSTRACT This is the first paper in our series on the combined analysis of the Dynamics and stellar Population (DynPop) for the MaNGA survey in the final SDSS…”
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3
Galaxy stellar and total mass estimation using machine learning
Published in Monthly notices of the Royal Astronomical Society (15-02-2024)“…ABSTRACT Conventional galaxy mass estimation methods suffer from model assumptions and degeneracies. Machine learning (ML), which reduces the reliance on such…”
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Kinematical coherence between satellite galaxies and host stellar discs for MaNGA and SAMI galaxies
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT The effect of angular momentum on galaxy formation and evolution has been studied for several decades. Our recent two papers using IllustrisTNG-100…”
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From large-scale environment to CGM angular momentum to star-forming activities – I. Star-forming galaxies
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT The connection between halo gas acquisition through the circumgalactic medium and galaxy star formation (SF) has long been studied. In this series of…”
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MaNGA DynPop – II. Global stellar population, gradients, and star-formation histories from integral-field spectroscopy of 10K galaxies: link with galaxy rotation, shape, and total-density gradients
Published in Monthly notices of the Royal Astronomical Society (01-11-2023)“…ABSTRACT This is the second paper of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Dynamics and stellar Population (DynPop) series, which…”
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MaNGA DynPop – III. Stellar dynamics versus stellar population relations in 6000 early-type and spiral galaxies: Fundamental Plane, mass-to-light ratios, total density slopes, and dark matter fractions
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT We present dynamical scaling relations, combined with the stellar population properties, for a subsample of about 6000 nearby galaxies with the most…”
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Star Formation in Massive Galaxies at Redshift z ∼ 0.5
Published in The Astrophysical journal (01-06-2020)“…It is believed that massive galaxies have quenched their star formation because of active galactic nucleus feedback. However, recent studies have shown that…”
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MaNGA DynPop – II. Global stellar population, gradients, and star-formation histories from integral-field spectroscopy of 10K galaxies: link with galaxy rotation, shape, and total-density gradients
Published in Monthly notices of the Royal Astronomical Society (21-09-2023)“…ABSTRACT This is the second paper of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Dynamics and stellar Population (DynPop) series, which…”
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10
A complete catalogue of broad-line AGNs and double-peaked emission lines from MaNGA integral-field spectroscopy of 10K galaxies: stellar population of AGNs, supermassive black holes, and dual AGNs
Published in Monthly notices of the Royal Astronomical Society (01-10-2023)“…ABSTRACT We analyse the integral field spectroscopy data for the ≈10 000 galaxies in final data release of the MaNGA survey. We identify 188 galaxies for which…”
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SDSS-IV MaNGA: stellar population correlates with stellar root-mean-square velocity Vrms gradients or total-density-profile slopes at fixed effective velocity dispersion σe
Published in Monthly notices of the Royal Astronomical Society (11-07-2020)“…ABSTRACT Galaxy properties are known to correlate most tightly with the galaxy effective stellar velocity dispersion σe. Here, we look for additional trends at…”
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12
MaNGA DynPop – V. The dark-matter fraction versus stellar velocity dispersion relation and stellar initial mass function variations in galaxies: dynamical models and full spectrum fitting of integral-field spectroscopy
Published in Monthly notices of the Royal Astronomical Society (06-05-2024)“…ABSTRACT Using the final Mapping Nearby Galaxies at Apache Point Observatory sample of 10K galaxies, we investigate the dark matter (DM) fraction fDM within…”
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MaNGA DynPop – VI. Matter density slopes from dynamical models of 6000 galaxies versus cosmological simulations: the interplay between baryonic and dark matter
Published in Monthly notices of the Royal Astronomical Society (23-03-2024)“…ABSTRACT We try to understand the trends in the mass density slopes as a function of galaxy properties. We use the results from the best Jeans Anisotropic…”
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14
Energy, exergy, exergoeconomic, economic, and environmental analyses and multi-objective optimization of a novel combined cooling and power system with dual-pressure Kalina cycle-absorption refrigeration
Published in Energy conversion and management (01-09-2024)“…•A DPKC-AR-CCP system is proposed for using internal combustion engine waste heat.•A pneumatic booster pump unit is used to improve low-pressure Kalina…”
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15
The enhanced sampling in parallel finite-time dynamics method with replica exchange
Published in Computer physics communications (01-06-2021)“…The finite-time dynamical method is an effective tool studying phase transition in many-body systems. We design a parallel version of this method based on…”
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16
Performance and parameter prediction of SCR–ORC system based on data–model fusion and twin data–driven
Published in Energy (Oxford) (01-03-2024)“…This paper introduced an integrated approach of data–model fusion coupled with twin data–driven to address the bottlenecks of low accuracy and poor stability…”
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A complete catalogue of broad-line AGNs and double-peaked emission lines from MaNGA integral-field spectroscopy of 10K galaxies: stellar population of AGNs, supermassive black holes, and dual AGNs
Published in Monthly notices of the Royal Astronomical Society (26-07-2023)“…ABSTRACT We analyse the integral field spectroscopy data for the ≈10 000 galaxies in final data release of the MaNGA survey. We identify 188 galaxies for which…”
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18
Hot and counter-rotating star-forming disc galaxies in IllustrisTNG and their real-world counterparts
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT A key feature of a large population of low-mass, late-type disc galaxies are star-forming discs with exponential light distributions. They are…”
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Quenched, bulge-dominated, but dynamically cold galaxies in IllustrisTNG and their real-world counterparts
Published in Monthly notices of the Royal Astronomical Society (01-02-2022)“…ABSTRACT Galaxy morphologies, kinematics, and stellar populations are thought to be linked to each other. However, both simulations and observations have…”
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20
From large-scale environment to CGM angular momentum to star forming activities – II. Quenched galaxies
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT The gas needed to sustain star formation in galaxies is supplied by the circumgalactic medium (CGM), which in turn is affected by accretion from large…”
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