Zobrazeno 1 - 10 of 68 pro vyhledávání: '"James G. O'Brien"'
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Akademický článek
Universal properties of galactic rotation curves and a first principles derivation of the Tully–Fisher relation
Autor: James G. O'Brien, Thomas L. Chiarelli, Philip D. Mannheim
Publikováno v: Physics Letters B, Vol 782, Iss , Pp 433-439 (2018)
In a recent paper McGaugh, Lelli, and Schombert showed that in an empirical plot of the observed centripetal accelerations in spiral galaxies against those predicted by the Newtonian gravity of the luminous matter in those galaxies the data points oc
Externí odkaz: https://doaj.org/article/06f51dfce5b74b4984e7a21a2a11559a
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2
Ultra faint edge on galaxies: standard and alternative gravity explorations
Autor: James G. O’Brien, William M. Kerin, Thomas L. Chiarelli
Publikováno v: Journal of Physics: Conference Series. 2482:012004
Recently, Bizyaev et. al. (2021) conducted the first modeling of rotation curves for 153 ultra-faint, edge-on galaxies using the 3.5 m telescope at the Apache Point Observatory. These models derived high resolution rotation curves for 20 galaxies of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b1c9ec21f8d596098d31fc0ef46816a
https://doi.org/10.1088/1742-6596/2482/1/012004
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5
Universal properties of galactic rotation curves and a first principles derivation of the Tully–Fisher relation
Autor: Thomas L. Chiarelli, Philip D. Mannheim, James G. O'Brien
Publikováno v: Physics Letters B, Vol 782, Iss, Pp 433-439 (2018)
Physics Letters
In a recent paper McGaugh, Lelli, and Schombert showed that in an empirical plot of the observed centripetal accelerations in spiral galaxies against those predicted by the Newtonian gravity of the luminous matter in those galaxies the data points oc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::437a76b945a8a6c8219f528a7c72f0dc
https://doi.org/10.1016/j.physletb.2018.05.060
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6
Revisiting two well studied galaxy samples using alternative gravity
Autor: Thomas L. Chiarelli, Jon Belanger, James G. O’Brien, William M. Kerin
Publikováno v: Journal of Physics: Conference Series. 1956:012003
In the last few years, alternative gravity theories have seen increased interest due to the lack of observational evidence of dark matter. Further, new empirical patterns found in rotation curve data such as the Radial Acceleration Rule (RAR) have gi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fcdab1760b5d6473ec13900cf4c66783
https://doi.org/10.1088/1742-6596/1956/1/012003
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7
Conformal Gravity and the Radial Acceleration Relation
Autor: Mark A. Falcone, Muhannad H. AlQurashi, Thomas L. Chiarelli, James G. O’Brien
During the 2016 International Workshop on Astronomy and Relativistic Astrophysics (IWARA), the question was raised as to if conformal gravity could explain the timely result of McGaugh et. al. 2016 which showed a universal nature found in the centrip
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::685ea7db953b9632bf98d1c4a935caa1
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10
Elder Abuse and Neglect: A Survey of Irish General Practitioners
Autor: James G. O'Brien, Claire Collins, Desmond O'Neill, Ailís Ní Riain, V. Long
Publikováno v: Journal of Elder Abuse & Neglect. 26:291-299
The objective of this study was to survey general practitioners (GPs) in Ireland regarding their experience with elder abuse. A random sample of 800 GPs were mailed a survey in March 2010, with a reminder in May 2010, yielding a 24% response rate. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4b80e7c6ef6c422c5476a0bc2d52eda
https://doi.org/10.1080/08946566.2013.827955
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