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 <~2 hours exposures on resolved lines, reaching as low as 1e-18 W/m/m in ~7 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 ~ 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 | http://adsabs.harvard.edu/abs/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 | http://adsabs.harvard.edu/abs/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 | http://adsabs.harvard.edu/abs/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 | http://adsabs.harvard.edu/abs/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 | http://adsabs.harvard.edu/abs/2015MNRAS.454.3485Y
Instrument
PACS_PacsRangeSpec_point, PACS_PacsLineSpec_point
Temporal Coverage
2011-10-20T15:13:24Z/2013-01-19T06:58:19Z
Version
SPG v14.2.0
Mission Description
Herschel was launched on 14 May 2009! It is the fourth cornerstone mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
European Space Agency, verma et al., 2013, 'Probing the Interstellar Medium of ULIRGs/SMGs at high redshift', SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-i049ai1
