[LEAPSECS] Two leap second papers

[David Malone]

These two papers, both from the November issue of The Astronomy
Journal, may be of interest to people here. The articles are not
(yet?) freely available, but I guess many academic libraries would
have access:

	THE PHYSICAL BASIS OF THE LEAP SECOND
	Dennis D. McCarthy et al 2008 The Astronomical Journal 136 1906-1908
	http://www.iop.org/EJ/abstract/1538-3881/136/5/1906

and:

	DOES RELATIVISTIC TIME DILATION CONTRIBUTE TO THE DIVERGENCE OF UNIVERSAL TIME AND EPHEMERIS TIME?
	Gérard Petit et al 2008 The Astronomical Journal 136 1909-1912
	http://www.iop.org/EJ/abstract/1538-3881/136/5/1909

Both are in response to a 2007 paper attributing leap seconds to
general relativistic effects rather than geophysical and tidal
effects.

	David.