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Related papers: The case for testing MOND using LISA Pathfinder

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This paper introduces a possible alternative model of gravity based on the theory of fractional-dimension spaces and its applications to Newtonian gravity. In particular, Gauss's law for gravity as well as other fundamental classical laws…

General Relativity and Quantum Cosmology · Physics 2021-02-09 Gabriele U. Varieschi

MOdified Newtonian dynamics (MOND) represents a phenomenological alternative to dark matter (DM) for the missing mass problem in galaxies and clusters of galaxies. We analyze the central regions of a local sample of $\sim 220$ early-type…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 C. Tortora , A. J. Romanowsky , V. F. Cardone , N. R. Napolitano , Ph. Jetzer

The motion of satellite galaxies around normal galaxies at distances 50-500 kpc provides a sensitive test for the theories. We study the surface density and the velocities of satellites around isolated galaxies in the Sloan Digital Sky…

Astrophysics · Physics 2009-01-16 A. Klypin , F. Prada

Based on the predictive map theory of spatial learning in animals, this study delves into the dynamics of Successor Feature (SF) and Predecessor Feature (PF) algorithms within noisy environments. Utilizing Q-learning and Q($\lambda$)…

Neural and Evolutionary Computing · Computer Science 2024-02-08 Hyunsu Lee

The timing of the Local Group is used to test Modified Newtonian Dynamics (MOND). The result shows that the masses predicted by MOND are well below the baryonic contents of the Milky Way and Andromeda galaxies.

Cosmology and Nongalactic Astrophysics · Physics 2009-09-30 Yan-Chi Shi

We looked at the orbital motions of test particles according to the External Field Effect (EFE) predicted by the MOdified Newtonian Dynamics (MOND) in the Oort cloud which falls in the deep MONDian regime (r\approx 50-150 kAU). Concerning…

General Relativity and Quantum Cosmology · Physics 2014-11-20 Lorenzo Iorio

I present a new class of nonrelativistic, modified-gravity MOND theories. The three gravitational degrees of freedom of these ``TRIMOND'' theories are the MOND potential and two auxiliary potentials, one of which emerges as the Newtonian…

General Relativity and Quantum Cosmology · Physics 2023-09-11 Mordehai Milgrom

The Laser Interferometric Space Antenna (LISA) will observe supermassive black hole binary mergers with amplitude signal-to-noise ratio of several thousands. We investigate the extent to which such observations afford high-precision tests…

General Relativity and Quantum Cosmology · Physics 2010-11-05 K. G. Arun , B. R. Iyer , M. S. S. Qusailah , B. S. Sathyaprakash

We consider the use of {\Delta}{\Sigma} modulators in ac motor drives, focusing on the many additional degrees of freedom that this option offers over Pulse Width Modulation (PWM). Following some recent results, we show that it is possible…

Systems and Control · Computer Science 2013-10-25 Sergio Callegari , Federico Bizzarri

We propose that there is a regime of quantum gravity phenomena, for the case that the cosmological constant is small and positive, which concerns phenomena at temperatures below the deSitter temperature, or length scales larger than the…

General Relativity and Quantum Cosmology · Physics 2017-11-01 Lee Smolin

General analytic arguments lead us to expect that in the modified dynamics (MOND) self-gravitating disks are more stable than their like in Newtonian dynamics. We study this question numerically, using a particle-mesh code based on a…

Astrophysics · Physics 2014-10-13 Rafael Brada , Mordehai Milgrom

We derive a relativistic extension of Modified Newtonian Dynamics (MOND) within the framework of entropic gravity by introducing temperature-dependent corrections to the equipartition law on a holographic screen. Starting from a Debye-like…

General Relativity and Quantum Cosmology · Physics 2025-11-11 A. Rostami , K. Rezazadeh , M. Rostampour

In default of a fundamental MOND theory -- a FUNDAMOND -- I advocate that, alongside searching for one, we should try to identify predictions that follow from wide classes of MOND theories, if not necessarily from all. In particular,…

General Relativity and Quantum Cosmology · Physics 2025-10-21 Mordehai Milgrom

MOND has limelighted the fact that Newtonian dynamics (ND) and general relativity (GR) have not been verified at accelerations below MOND's $a_0$. In particular, we do not know that all the principles underlying ND or GR apply below $a_0$.…

General Relativity and Quantum Cosmology · Physics 2019-10-22 Mordehai Milgrom

The Space Technology 7 Disturbance Reduction System (ST7-DRS) is a NASA technology demonstration payload that operated from January 2016 through July of 2017 on the European Space Agency's LISA Pathfinder spacecraft. The joint goal of the…

Instrumentation and Methods for Astrophysics · Physics 2018-11-21 G Anderson , J Anderson , M Anderson , G Aveni , D Bame , P Barela , K Blackman , A Carmain , L Chen , M Cherng , S Clark , M Connally , W Connolly , D Conroy , M Cooper , C Cutler , J D'Agostino , N Demmons , E Dorantes , C Dunn , M Duran , E Ehrbar , J Evans , J Fernandez , G Franklin , M Girard , J Gorelik , V Hruby , O Hsu , D Jackson , S Javidnia , D Kern , M Knopp , R Kolasinski , C Kuo , T Le , I Li , O Liepack , A Littlefield , P Maghami , S Malik , L Markley , R Martin , C Marrese-Reading , J Mehta , J Mennela , D Miller , D Nguyen , J O'Donnell , R Parikh , G Plett , T Ramsey , T Randolph , S Rhodes , A Romero-Wolf , T Roy , A Ruiz , H Shaw , J Slutsky , D Spence , J Stocky , J Tallon , I Thorpe , W Tolman , H Umfress , R Valencia , C Valerio , W Warner , J Wellman , P Willis , J Ziemer , J Zwahlen , M Armano , H Audley , J Baird , P Binetruy , a M Born , D Bortoluzzi , E Castelli , A Cavalleri , A Cesarini , A M Cruise , K Danzmann , M de Deus Silva , I Diepholz , G Dixon , R Dolesi , L Ferraioli , V Ferroni , E D Fitzsimons , M Freschi , L Gesa , F Gibert , D Giardini , R Giusteri , C Grimani , J Grzymisch , I Harrison , G Heinzel , M Hewitson , D Hollington , D Hoyland , M Hueller , H Inchauspe , O Jennrich , P Jetzer , N Karnesis , B Kaune , N Korsakova , C J Killow , J A Lobo , I Lloro , L Liu , J P Lopez-Zaragoza , R Maarschalkerweerd , D Mance , N Meshksar , V Martin , L Martin-Polo , J Martino , F Martin-Porqueras , I Mateos , P W McNamara , J Mendes , L Mendes , M Nofrarias , S Paczkowski , M Perreur-Lloyd , A Petiteau , P Pivato , E Plagnol , J Ramos-Castro , J Reiche , D I Robertson , F Rivas , G Russano , C F Sopuerta , T Sumner , D Texier , D Vetrugno , S Vitale , G Wanner , H Ward , P J Wass , W J Weber , L Wissel , A Wittchen , P Zweifel

Achieving the low frequency LISA sensitivity requires that the test masses acting as the interferometer end mirrors are free-falling with an unprecedented small degree of deviation. Magnetic disturbances, originating in the interaction of…

General Relativity and Quantum Cosmology · Physics 2009-11-10 M. Hueller , M. Armano , L. Carbone , A. Cavalleri , R. Dolesi , C. D. Hoyle , S. Vitale , W. J. Weber

We conduct an analysis of the measurement abilities of distinctive LISA detector designs, examining the influence of LISA's low-frequency performance on the detection and characterization of massive black hole binaries. We are particularly…

General Relativity and Quantum Cosmology · Physics 2019-03-07 Michael L. Katz , Shane L. Larson

LISA is the proposed ESA-NASA gravitational wave detector in the 0.1 mHz - 0.1 Hz band. LISA Pathfinder is the down-scaled version of a single LISA arm. The arm -- named Doppler link -- can be treated as a differential accelerometer,…

General Relativity and Quantum Cosmology · Physics 2012-04-20 Giuseppe Congedo

LISA Pathfinder is a technology demonstration mission for the Laser Interferometer Space Antenna (LISA). The main experiment on-board LISA Pathfinder is the so-called LISA Technology Package (LTP) which has the aim to measure the…

General Relativity and Quantum Cosmology · Physics 2012-03-23 Frank Steier , Felipe Guzmán Cervantes , Antonio F. García Marín , Domenico Gerardi , Gerhard Heinzel , Karsten Danzmann

Tilt-to-length coupling was the limiting noise source in LISA Pathfinder between 20 and 200 mHz before subtraction in post-processing. To prevent the adding of sensing noise to the data by the subtraction process, the success of this…

General Relativity and Quantum Cosmology · Physics 2023-08-07 Marie-Sophie Hartig , Gudrun Wanner