Bibcode
Perez-Fournon, Ismael; Afonso-Luis, Alejandro; Babbedge, Thomas; Clements, David; Farrah, Duncan; Gonzalez-Solares, Eduardo A.; Gruppioni, Carlotta; Hatziminaoglou, Evanthia; Hernan-Caballero, Antonio; La Franca, Fabio; Lari, Carlo; Montenegro Montes, Francisco M.; Oliver, Sebastian; Pozzi, Francesca; Rigopoulou, Dimitra; Rowan-Robinson, Michael; Serjeant, Steve; Vaccari, Mattia; Valtchanov, Ivan; Vila-Vilaro, Baltasar
Referencia bibliográfica
Spitzer Proposal ID #3640
Advertised on:
9
2004
Número de citas
0
Número de citas referidas
0
Descripción
We propose to use the low spectral resolution capabilities of IRS to
obtain high signal-to-noise mid-infrared spectra of a sample of 70
Ultra- and Hyperluminous extragalactic objects at high redshift
discovered in the ELAIS survey. The European Large Area ISO Survey
(ELAIS) offers the largest complete mid-IR, high-z, high-L extragalactic
sample prior to SPITZER. At any redshift ELAIS provides the most
luminous objects easily observable with IRS, being complete to about S
(15 um) = 1 mJy, well-matched to the sensitivity of IRS. For this
proposal we have selected all those galaxies and AGN which have redshift
(determined either spectroscopically or photometrically) larger than
one. The sample includes objects confirmed to be type-1 quasars with
optical spectroscopy as well as galaxies, fainter in the optical, which
are probably dusty luminous starbursts. From the IRS observations we
plan to investigate in detail: a) the source of the high bolometric
luminosities of the most luminous objects in the distant Universe and
compare them with nearby galaxies of similar luminosities, b) the
physics of dust and gas in high-redshift objects using well-established
mid-infrared spectral diagnostic tools, c) the role of the
high-luminosity objects in current models of galaxy formation, and d)
the AGN-starburst connection.