Observational Constraints on the Origins of the Fundamental Plane
| dc.creator | Pahre, M. A. | |
| dc.creator | Djorgovski, S. G. | |
| dc.date | 1996-11-14 | |
| dc.date.accessioned | 2026-07-07T02:22:18Z | |
| dc.date.available | 2026-07-07T02:22:18Z | |
| dc.description | We review the concept of the Fundamental Plane (FP), and present new results on the near-infrared FP. We show that the K-band FP differs both from the optical form and the virial expectation under the assumption of constant (M/L) and homology. Systematic variations of only the stellar populations parameters (age, metallicity, IMF) cannot reproduce the slopes of the FP simultaneously at both the optical and near-infrared wavelengths. There appears to be an additional effect which could be due to a systematic departure of the velocity distributions of elliptical galaxies from a homologous family. In order to distinguish between the different possible stellar populations parameters, the FP and its projections can be observed at a range of redshifts. We describe several such evolutionary tests: in the intercept of the color-magnitude relation; in the intercept of the Kormendy surface brightness-radius correlation; and in the intercept of the FP itself. All three tests are fully consistent with the population of cluster elliptical galaxies having formed at high redshift; this contradicts large, systematic age variations as a significant contributor to the slope of the FP. | |
| dc.description | Invited review, to appear in The Nature of Elliptical Galaxies, Proceedings of the Second Stromlo Symposium, eds. M. Arnaboldi, G. S. Da Costa, and P. Saha; 12 pages, including 6 embedded postscript figures; TeX file, requires input file stromlo.tex (included); also available at http://astro.caltech.edu/~map/map.bibliography.html | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9611115 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9611115 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10831 | |
| dc.subject | Astrophysics | |
| dc.title | Observational Constraints on the Origins of the Fundamental Plane | |
| dc.type | text |