A dataset provided by the European Space Agency

Name OT2_mrex_2
Title Herschel Spectroscopy of Lensed High-Redshift Galaxies.


DOI https://doi.org/10.5270/esa-f09lyi2
Author European Space Agency
Description We propose Herschel spectroscopic observations of the [C II]158 um and [O I]63
um emission lines in 4 extremely bright, lensed, high-redshift galaxies.
Herschel photometric surveys conducted toward galaxy clusters have identified
these highly magnified sources, which would otherwise be undetectable below
the confusion limit of the instrument. These exceptional targets provide the
unique opportunity to study the characteristics of the ISM in typical galaxies
with moderate luminosities at high redshift.

Recent studies have identified key differences between the far-infrared
properties of local LIRGS/ULIRGS and galaxies of comparable luminosity at high
redshift. However, the highest redshift observations are inherently biased
toward more luminous galaxies, making it difficult to extend this comparison to
the abundant population which is intrinsically faint. Herschel spectroscopy of
highly magnified galaxies provides the only means to probe the physical
conditions within this more typical population. Measurements of the [C II] and
[O I] cooling lines are sensitive to the temperature and density of the gas
surrounding starforming regions, as well as the strength of the incident
far ultraviolet radiation from starbursts. These observations will provide
insight into the environmental conditions that drive the differences between
high-redshift star-forming galaxies and those in the local universe.
Instrument SPIRE_SpireSpectrometer_, PACS_PacsLineSpec_point
Temporal Coverage 2013-03-19T00:22:49Z/2013-04-15T22:51:26Z
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.
Creator Contact https://support.cosmos.esa.int/h®erschel/
Date Published 2013-10-15T17:38:52Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013, Herschel Spectroscopy Of Lensed High-Redshift Galaxies., SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-f09lyi2