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 https://doi.org/10.5270/esa-9ng6jec
Author European Space Agency
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
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 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/h®erschel/
Date Published 2013-10-19T02:42:02Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013, Probing The Dominant Ion On The Surface Of Planet-Forming Disks With Herschel/Hifi, SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-9ng6jec