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Astron. Astrophys. 333, 43-47 (1998)


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Imaging around PC 1643+4631A at the Lyman limit

I. Ferreras 1, 2, N. Benítez 1, 2 and E. Martínez-González 1

1 Instituto de Física de Cantabria, CSIC-Universidad de Cantabria, Fac. de Ciencias, Av. los Castros s/n, E-39005 Santander, Spain
(ferreras@ifca.unican.es)
2 Departamento de Física Moderna, Universidad de Cantabria

Received 12 December 1997 / Accepted 15 January 1998

Abstract

We present a list of candidates for high redshift late-type galaxies in the field around the [FORMULA] quasar PC 1643+4631A. Deep U,V and R imaging has been used to search for objects with a strong Lyman break between U and V, characteristic of galaxies with high hydrogen column densities at [FORMULA]. A further study of the red objects detected by Hu & Ridgway (1994) has been done, allowing the tentative identification of many of them as low redshift ([FORMULA]) elliptical galaxies.

Key words: cosmology: observations – galaxies: formation – galaxies: distances and redshifts – quasars: individual: PC 1643+4631A

Send offprint requests to: I. Ferreras

© European Southern Observatory (ESO) 1998

Online publication: April 15, 1998
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