Description |
Early results from Herschel have shown we are entering a new and exciting era in the study of the interstellar media of galaxies. Using the far-infrared cooling lines, we have demonstrated the capability of the PACS spectrometer in deep integrations reaching line sensitivities of 3 sigma sensitivities of 3e-18 W/m/m in <virgul2 hours exposures on resolved lines, reaching as low as 1e-18 W/m/m in virgul7 hours with the red detector allowing us to probe the ISM of galaxies in place at the peak of star-formation and AGN activity in the Universe (Sturm et al. 2010). This proposal builds on these first studies by performing PACS spectroscopy of a sample of bright and strongly lensed infrared/sub-mm galaxies at moderate to high redshift. By virtue of the magnification due to lensing we are able to probe intrinsically lower luminosity galaxies which would normally be beyond the reach of the Herschel spectro- meters, and, for the first time, constrain the physical processes and state of the ISM in these high-redshift galaxies. |
Publication |
Strong C+ Emission in Galaxies at z virgul 1-2: Evidence for Cold Flow Accretion Powered Star Formation in the Early Universe . Brisbin Drew et al. . The Astrophysical Journal, Volume 799, Issue 1, article id. 13, 18 pp. (2015). . 799 . 10.1088\/0004-637X\/799\/1\/13 . 2015ApJ...799...13B , Resolving Star Formation on Subkiloparsec Scales in the High-redshift Galaxy SDP.11 Using Gravitational Lensing . Lamarche C. et al. . The Astrophysical Journal, Volume 867, Issue 2, article id. 140, 12 pp. (2018). . 867 . 10.3847\/1538-4357\/aae394 . 2018ApJ...867..140L , The Interstellar Medium in High-redshift Submillimeter Galaxies as Probed by Infrared Spectroscopy* . Wardlow Julie L. et al. . The Astrophysical Journal, Volume 837, Issue 1, article id. 12, 20 pp. (2017). . 837 . 10.3847\/1538-4357\/837\/1\/12 . 2017ApJ...837...12W , The Second-generation z (Redshift) and Early Universe Spectrometer. I. First-light Observation of a Highly Lensed Local-ulirg Analog at High-z . Ferkinhoff Carl et al. . The Astrophysical Journal, Volume 780, Issue 2, article id. 142, 8 pp. (2014). . 780 . 10.1088\/0004-637X\/780\/2\/142 . 2014ApJ...780..142F , Early Science with the Large Millimeter Telescope: CO and [C II] Emission in the z = 4.3 AzTEC J095942.9+022938 (COSMOS AzTEC-1) . Yun Min S. et al. . Monthly Notices of the Royal Astronomical Society, Volume 454, Issue 4, p.3485-3499 . 454 . 10.1093\/mnras\/stv1963 . 2015MNRAS.454.3485Y ,
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