Dr. Yong Tian: "Testing the Strong Equivalence Principle: New Evidences for Modified Gravity"
Time/Location: 2022-05-18 12:10 [Via Google Meet]
Authers/Journal Paper:
Abstract:
The strong equivalence principle (SEP) is the distinguishing feature of General Relativity, which demands that the internal dynamics of a self-gravitating system under freefall in an external gravitational field should not depend on the external field strength. Strikingly, recent studies have revealed a violation in SEP and preferred the external field effect (EFE) of MOdified Newtonian Dynamics (MOND). By examining the unique prediction in MOND, we can understand better the issues of dark matter problems. In this talk, I will briefly introduce the conceptions of the equivalence principle, the EFE of MOND, and some important results in the recent discoveries. For example, EFE is statistically detected at more than 4σ from a blind test of 153 SPARC rotating galaxies.
For more details, you may refer to the link:
https://ui.adsabs.harvard.edu/abs/2020ApJ...904...51C/abstract
https://ui.adsabs.harvard.edu/abs/2021ApJ...921..104C/abstract
We will meet here on:
https://meet.google.com/gpc-srrp-wcg
Date | Speaker | Title |
2022-05-18 | Dr. Yong Tian | Testing the Strong Equivalence Principle: New Evidences for Modified Gravity |
2022-05-11 | JiaYu Ou | Mid-infrared Period–Luminosity Relations for Miras in the Large Magellanic Cloud |
2022-05-04 | Prof. Hwang | On the relative importance of AGN winds for the evolution of exoplanet atmospheres |
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2021-12-22 | Prof. Ip | Circumstellar debris and pollution around white dwarfs |
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2021-10-20 | Prof. Hwang | Galaxy zoo builder: Morphological dependence of spiral galaxy pitch angle by T. Lingard et al |
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2021-05-19 | Tanvi Sharma | WD1032 + 011, an inflated brown dwarf in an old eclipsing binary with a white dwarf
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2020-12-30 | Prof. Pan | "First Hubble diagram and cosmological constraints using superluminous supernova" by Inserra et al.
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2020-12-23 | Prof. Chen | "Discovery of a mid-infrared protostellar outburst of exceptional amplitude" by Lucas et al. |
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2018-11-26 | Dr. Chiende Lee | Velocity-resolved [O I] 63 μm Emission in the HD 50138 Circumstellar Disk |
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2017-11-14 | Prof. Chow-Choong Ngeow | Hunting the Optical Counterparts for Gravitational Wave Events |
2017-10-31 | Chia-Hsiang Huang | The mean star formation rates of unobscured QSOs: searching for evidence of suppressed or enhanced star formation |
2017-10-24 | Prof. Wing-Huen Ip | Illuminating gravitational waves: A concordant picture of photons from a neutron star merger |
2017-10-17 | Prof. Chorng-Yuan Hwang | How large are the globular cluster systems of early-type galaxies and do they scale with galaxy halo properties? |
2017-10-03 | Prof. Wen-Ping Chen | Annual Review of Astronomy and Astrophysics 2017 |
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2016-10-20 | Po-Shih Chiang | Spiral density waves in a young protoplanetary disk |
2016-10-13 | Chien-De Lee | Pan-STARRS and PESSTO search for an optical counterpart to the LIGO gravitational-wave source GW150914 |
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2016-03-10 | Chien-De Lee | Properties of the binary black hole merger GW150914 |
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2015-10-29 | Yu-Chi Cheng 鄭宇棋 | The NEOWISE-Discovered Comet Population and the CO+CO2 production rates |
2015-10-08 | Po-Shih Chiang 姜博識 | Discovery and spectroscopy of the young Jovian planet 51 Eri b with the Gemini Planet Imager |
2015-10-01 | Hsing-Wen Lin 林省文 | Space Weathering Trends Among Carbonaceous Asteroids |
2015-05-29 | Daisuke Kinoshita 木下大輔 | Spectral properties of the largest asteroids associated with Taurid Complex |
2015-05-14 | Chan-Kao Chang 章展誥 | 29 November 2011 stellar occultation by 2060 Chiron: Symmetric jet-like features |
2015-04-30 | I-Ling Lin 林怡伶 | Ongoing hydrothermal activities within Enceladus |
2015-04-09 | Dr. Hsing-Wen Lin 林省文 | Planet heating prevents inward migration of planetary cores |
2015-03-19 | Yong Tian 田雍 | Dynamics of Elliptical Galaxies with Planetary Nebulae in the MOdified Newtonian Dynamics |
2015-01-08 | Yi-Hao Su 蘇羿豪 | Practices in source code sharing in astrophysics |
2014-12-25 | I-Ling Lin 林怡伶 | The Secret Lives of Cepheids: Evolutionary Changes and Pulsation-Induced Shock Heating in the Prototype Classical Cepheid δ Cep |
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2014-12-04 | Ting-Chang Yang 楊庭彰 | SDSS J001153.08-064739.2, a Cataclysmic Variable with an Evolved Donor in the Period Gap |
2014-11-27 | Li-Ching Huang 黃立晴 | Kepler Flares I. Active and Inactive M dwarfs |
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2014-10-30 | Jen-Chao Huang 黃仁昭 | Relics of Galaxy Merging: Observational Predictions for a Wandering Massive Black Hole and Accompanying Star Cluster in the Halo of M31 |
2014-10-16 | Yu-Chi Cheng 鄭宇棋 | Dust environment and dynamical history of a sample of short-period comets |
2014-10-09 | Zong-Fu Sie 謝宗富 | The host galaxy and late-time evolution of the Super-Luminous Supernova PTF12dam |
2014-10-02 | Po-Shin Chiang 姜博識 | Gender-based Systematics in HST Proposal Selection |
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2014-05-15 | An-Li Tsai | Suppression of star formation in the galaxy NGC 253 by a starburst-driven molecular wind |
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