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FQXi FORUM: Cosmology
October 1, 2022

Dark matter effect on the weak deflection angle by black holes at the center of Milky Way and M87 galaxies
2 posts  •  created by Josh Hoffman   •  May. 30, 2022 @ 11:31 GMT
"Dark matter effect on the weak deflection angle by black holes at the center of Milky Way and M87 Reggie C. Pantig , Physics Department, De La Salle University, Philippines Ali Övgün Physic..."

The secret of planets’ perihelion between Newton and Einstein
6 posts  •  created by Joe Schindler   •  Jul. 19, 2021 @ 18:15 GMT
"Thank you to Dr. Christian Corda for suggesting we open a thread to discuss their recent result The secret of planets’ perihelion between Newton and Einstein, which was published in [i]Physics of..."

The Effects of Inertial Forces on the Dynamics of Disk Galaxies
18 posts  •  created by Zeeya Merali   •  Oct. 23, 2020 @ 13:29 GMT
"Tomer Zimmerman & Roy Gomel of Tel Aviv University alerted me to their preprint arguing that that phenomena of dark matter (on galactic scales) could be attributed to Inertial forces. From their abstr..."

On the Cosmological Constant in a Conformally Transformed Einstein Equation
2 posts  •  created by Zeeya Merali   •  Jun. 29, 2018 @ 13:44 GMT
"Dor Gabay and Sijo K. Joseph of Tel Aviv University, in Israel, have a new paper (arXiv:1801.00161), currently submitted for peer review, that they would like to discuss with the FQXi Community. Here ..."

Quickfire Cosmo Qs
12 posts  •  created by Zeeya Merali   •  Apr. 7, 2017 @ 12:51 GMT
"This is a place where you can post quick queries about cosmology."

Time in Physics & Entropy and the Universe
5 posts  •  created by Brendan Foster   •  Dec. 22, 2015 @ 17:31 GMT
"Thanks to FQXi Member and expert on the nature of time Julian Barbour for pointing out the online videos of talks of the recent Workshop on Time in Physics at the ETH Zurich. Julian's talk on Time's A..."

Plasma Tubes in the Sky
38 posts  •  created by Zeeya Merali   •  Jun. 3, 2015 @ 15:49 GMT
"Thanks to Georgina Parry for spotting this article about a young Australia scientist at the University of Sydney, Cleo Loi--an undergraduate, in fact--who has discovered that giant, invisible, moving..."

Black Holes Do Not Exist, claims Mersini-Houghton
705 posts  •  created by Zeeya Merali   •  Sep. 24, 2014 @ 23:25 GMT
"A few months ago I wrote an article for Nature outlining a paper by Stephen Hawking in which he redefined what we mean by an "event horizon". Fans of the podcast will also have heard FQXi members..."

Quark Stars and a New State of Matter?
157 posts  •  created by Zeeya Merali   •  Feb. 3, 2014 @ 17:50 GMT
"[i]Thank you to Alan Lowey for suggesting this topic, stimulated by a feature article by Anil Ananthaswamy that appeared in New Scientist magazine, "Quark Stars: How Can a Supernova Explode Twice?"..."

Chasing the black holes of the ocean
340 posts  •  created by Zeeya Merali   •  Sep. 25, 2013 @ 17:31 GMT
"Another great find by John In John's words: "Here is an interesting article on PhysOrg, about how "some of the largest ocean eddies on Earth are mathematically equivalent to the mysterious bl..."

Dimensional Reduction in the Sky
42 posts  •  created by Zeeya Merali   •  Jul. 8, 2013 @ 14:50 GMT
"Thanks to Jonathan Dickau for spotting this paper FQXi member Giovanni Amelino-Camelia and Here's the abstract: "We explore the cosmological implications ..."

A Self-Gravitational Upper Bound on Localized Energy
145 posts  •  created by Zeeya Merali   •  Mar. 4, 2013 @ 14:42 GMT
"Jonathan Dickau has requested a new thread to discuss a recent arXiv paper by Stephen Kenneth Kauffmann, titled: "A Self-Gravitational Upper Bound on Localized Energy, Including that of Virtual..."

Multiversal Journeys' Cosmic Update
6 posts  •  created by Farzad Nekoogar   •  Sep. 12, 2012 @ 16:27 GMT
"The mission of Multiversal Journeys is to raise public awareness and interest in theoretical physics and A video clip for the new Cosmic Update book from Springer (final product for Spring 2..."

Equivalence Principle Violations
3 posts  •  created by Brendan Foster   •  Jun. 12, 2012 @ 19:28 GMT
"FQXi will be starting a new habit of presenting "products" from Members supported by FQXi, here in the forums for open discussion. To help start off this trend, please have a look at two articles fro..."

Alternative Models of Cosmology
380 posts  •  created by Zeeya Merali   •  Mar. 17, 2011 @ 14:29 GMT
"In cosmology, it is believed that regions of space on `opposite' sides of the universe are too far apart to have ever been causally connected. That is, they are outside each other's `particle..."

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