Cultural advice

The Australian National University acknowledges, celebrates and pays our respects to the Ngunnawal and Ngambri people of the Canberra region and to all First Nations Australians on whose traditional lands we meet and work, and whose cultures are among the oldest continuing cultures in human history.

Aboriginal and Torres Strait Islander peoples are advised that ANU Library collections may include images, names, voices, and other representations of deceased persons.

Material in the collection may contain terms, language or views that reflect the period in which the item was created and may be considered inappropriate today.

Cosmology: Black holes constrain varying constants

Simple item page
dc.contributor.authorDavies, P C W
dc.contributor.authorDavis, Tamara M
dc.contributor.authorLineweaver, Charles
dc.date.accessioned2016-02-24T22:42:02Z
dc.date.issued2002
dc.date.updated2016-02-24T11:10:11Z
dc.description.abstractThere is evidence to suggest that the finestructure constant, a - a measure of the strength of the electromagnetic interaction between photons and electrons, is slowly increasing over cosmological timescales. As a=e2 /hc (where e is the electronic charge, h is Planck’s constant and c is the speed of light), this would call into question which of these fundamental quantities are truly constant. Here we consider black-hole thermodynamics as a test of which constants might actually be variable, discounting those that could lead to a violation of the generalized second law of thermodynamics.
dc.identifier.issn0028-0836
dc.identifier.urihttp://hdl.handle.net/1885/98910
dc.publisherMacmillan Publishers Ltd
dc.sourceNature
dc.subjectKeywords: astronomy; article; calculation; cosmos; electromagnetic field; electron; photon; physics; priority journal
dc.titleCosmology: Black holes constrain varying constants
dc.typeJournal article
local.bibliographicCitation.issue6898
local.bibliographicCitation.lastpage603
local.bibliographicCitation.startpage602
local.contributor.affiliationDavies, P C W, Macquarie University
local.contributor.affiliationDavis, Tamara M, University of New South Wales
local.contributor.affiliationLineweaver, Charles, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidLineweaver, Charles, u4186476
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationu4480152xPUB2
local.identifier.citationvolume418
local.identifier.doi10.1038/418602a
local.identifier.scopusID2-s2.0-0037043717
local.type.statusPublished Version

Downloads

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
01_Davies_Cosmology%3A_Black_holes_2002.pdf
Size:
116.67 KB
Format:
Adobe Portable Document Format
Download

Collections

ANU Research Publications

DSpace software copyright © 2002-2026 LYRASIS