| Description |
Early results from Herschel have shown we are entering a newand exciting era in the study of the interstellar media of galaxies.Using the far-infrared cooling lines, we have demonstrated thecapability of the PACS spectrometer in deep integrations reachingline sensitivities of 3 sigma sensitivities of 3e-18 W/m/m in <~2 hours exposures on resolved lines, reaching as low as1e-18 W/m/m in ~7 hours with the red detector allowing us toprobe the ISM of galaxies in place at the peak of star-formationand AGN activity in the Universe (Sturm et al. 2010). This proposalbuilds on these first studies by performing PACS spectroscopy of asample of bright and strongly lensed infrared/sub-mm galaxies atmoderate to high redshift. By virtue of the magnification due tolensing we are able to probe intrinsically lower luminosity galaxieswhich would normally be beyond the reach of the Herschel spectro-meters, and, for the first time, constrain the physical processes andstate of the ISM in these high-redshift galaxies. |
| Keywords |
Herschel Space Observatory data, ESA Herschel mission dataset, far-infrared astronomy observations, submillimeter astronomy data, infrared space telescope observations, PACS photometer data, PACS spectrometer data, SPIRE photometer data, SPIRE Fourier transform spectrometer data, HIFI heterodyne spectroscopy data, far-infrared spectroscopy dataset, submillimeter spectral line observations, cold universe observations dataset, star formation infrared data, molecular cloud far-infrared observations, interstellar medium spectroscopy data, protoplanetary disk infrared observations, galaxy evolution far-infrared data, dust emission submillimeter observations, cosmic infrared background measurements, extragalactic infrared survey data, calibrated level 2 data products, FITS files astronomy, spectral cubes far-infrared, flux-calibrated maps, continuum photometry data, spectral energy distribution measurements, ESA Herschel Science Archive data |
