Limits on the Variability of Physical Constants
| dc.creator | Drinkwater, M. J. | |
| dc.creator | Webb, J. K. | |
| dc.creator | Barrow, J. D. | |
| dc.creator | Flambaum, V. V. | |
| dc.date | 1997-09-24 | |
| dc.date.accessioned | 2026-07-07T02:24:18Z | |
| dc.date.available | 2026-07-07T02:24:18Z | |
| dc.description | We have compared the frequency of high-redshift Hydrogen HI 21 cm absorption with that of associated molecular absorption in two quasars to place new (1 sigma) upper limits on any variation in y = g_p.alpha^2 (where alpha is the fine structure constant and g_p is the proton g-factor) of |Delta(y)/y| < 5.10^{-6} at redshifts z=0.25 and z=0.68. | |
| dc.description | To appear in: Structure and Evolution of the IGM from QSO Absorption Line Systems, IAP Colloquium, eds. P. Petitjean and S. Charlot, in press; 2 pages, a LaTeX file and the style file conf_iap.sty | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9709227 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9709227 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/11566 | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Limits on the Variability of Physical Constants | |
| dc.type | text |