SIMBAD references

2003ApJ...598..162S - Astrophys. J., 598, 162-167 (2003/November-3)

Galaxies under the cosmic microscope: a Gemini multiobject spectrograph study of lensed disk galaxy 289 in A2218.

SWINBANK A.M., SMITH J., BOWER R.G., BUNKER A., SMAIL I., ELLIS R.S., SMITH G.P., KNEIB J.-P., SULLIVAN M. and ALLINGTON-SMITH J.

Abstract (from CDS):

In this paper, we exploit the gravitational potential of the rich cluster A2218 as a magnifying glass. We demonstrate that the magnification due to the cluster allows us to observe distant background galaxies at a comparable level of detail to galaxies at z∼0.1. Using the Gemini Multiobject Spectrograph (GMOS) integral field unit (IFU) on Gemini North, we observed the spatially resolved [O II] λ3727 emission line spectrum for a lensed disk galaxy at z=1.034. Using a detailed model for the cluster mass distribution, we are able to correct for the lensing by the cluster and reconstruct the source morphology. We find that the overall magnification is a factor of 4.92±0.15, and the rest-frame absolute I-band magnitude is MrestI=-22.4±0.2, where the error bars include conservative estimates of the uncertainty in the source-plane reconstruction. The inclination-corrected circular velocity is 206±18 km/s. The galaxy lies very close to the mean Tully-Fisher relation of present-day spirals. Although our results are based on a single object, they demonstrate that gravitational lensing can be viably used to make detailed studies of the evolution of the structure of distant field galaxies.

Abstract Copyright:

Journal keyword(s): Galaxies: Evolution - Galaxies: Formation - Galaxies: Halos - Galaxies: High-Redshift - Galaxies: Kinematics and Dynamics - Galaxies: Spiral

CDS comments: Galaxy 289 in A2218 = LPS 289, fig.4 : L451 = EES 451

Simbad objects: 8

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2003ApJ...598..162S and select 'bookmark this link' or equivalent in the popup menu


2022.08.07-18:24:32

© Université de Strasbourg/CNRS

    • Contact