The red envelope and the age of the universeThe photometric evolution of old stellar populations is slow in the optical/IR. Consequently, observational error is a strongly limiting factor in the accuracy possible for determining galaxy ages or estimating q0 at high redshifts from indices such as the 4000-A break. Existing observations of the red envelope at z above about 0.3 are consistent with a wide range of evolutionary histories. The middle-UV spectral region (rest wavelengths = 2000-3300 A) appears to promise less ambiguous results.
Document ID
19890025148
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
O'Connell, Robert W. (Virginia, University Charlottesville, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Astrophysics
Meeting Information
Meeting: Workshop of the Advanced School of Astronomy Towards Understanding Galaxies at Large Redshift
Location: Erice
Country: Italy
Start Date: June 1, 1987
End Date: June 10, 1987
Sponsors: CNR, Ettore Majorana Intl. Centre for Scientific Culture