A dataset provided by the European Space Agency

Name OT2_lcleeves_2
Title Probing the Dominant Ion on the Surface of Planet-Forming Disks with Herschel-HIFI


DOI 10.5270/esa-9ng6jec
Author cleeves, l. i.
Description C+ is expected to be the dominant ion tracing the ultraviolet (UV) radiation exposed layers of young T Tauri disks. However, observational evidence of its existence has thus far eluded us. Current Herschel Key Programs using PACS include the detection of C+ as a key program facet; however, these studies have faced substantial difficulties (galactic background, strong continuum-narrow line width) in their ability to detect this intrinsically weak line. We have designed an optimized Herschel HIFI program to finally detect this line in a sample of disk systems which span a range of dust settling, and thus a range of gas mass exposed to UV radiation. This will provide a Herschel legacy product to test models of UV radiation transport and the resulting chemistry. This lies at the heart of the detailed models of disk chemistry. Therefore, this information will be crucial as we enter the era of ALMA, where resolved observations will require sophisticated modeling to interpret.
Instrument HIFI_HifiPoint_load
Temporal Coverage 2013-04-19T00:05:32Z/2013-04-19T05:03:47Z
Version SPG v14.1.0
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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-10-19T02:42:02Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-10-19T02:42:02Z, OT2_lcleeves_2, SPG v14.1.0. https://doi.org/10.5270/esa-9ng6jec