The following document lists the file abstract/MROWANRO_HIGH_Z_3.abs
from catalogue VI/111.
A plain copy of the file
(without headers/trailers) may be downloaded.
We propose to use ISO to identify high redshift (z>1) galaxies from
the IRAS Faint Source Survey. The strong signature of the redshift
in changing the far infrared spectrum towards peaking at longer
wavelengths makes ISO multiwavelength photometry a powerful tool
for identifying high redshift galaxies. The discovery of IRAS
F10214+4724 at z = 2.23, with a bolometric luminosity of 5e14 solar
luminosities, has been enermously stimulating for submillimetre
continuum and molecular line astronomy, offering the prospect of
studying galaxies close to their moment of formation. However
it has proved extremely difficult to find other galaxies of this
type in the IRAS catalogues.
We have followed up the IRAS FSS 60 mu sources in two areas
of the northern hemisphere each 700 sq deg in area, a total
sample of over 2800 IRAS galaxies. For the first area (FSS1) we have
identified and obtained redshifts for all but 53 of the 1400 sources
in the area and for most of these 53 unidentified sources we have
obtained VLA maps, and where necessary CCD images. Most have either
very faint identifications on the sky survey plates or CCD frames
or are blank, and are thus likely to have z > 0.2 and hence 60 mu
luminosities > 1.e12 solar luminosities. For the second area (FSS2)
the identifications are 90% complete and we have selected 71 objects
which are the best candidates for having faint, high redshift
idenstifications.
The purpose of the ISO observations is (1) to confirm the reality
of the IRAS FSS source, (2) to measure the SED of this interesting
sample, the bulk of which will be ultraluminous galaxies, (3) to
identify high redshift galaxies from their SED for further intensive
study with large ground-based telescopes.