A dataset provided by the European Space Agency

Name OT1_wthi01_1
Title The chemistry of CH+ in disks around HerbigAe stars


DOI 10.5270/esa-b3ljx1k
Author thi, w.-f.
Description Chemistry of protoplanetary disks have focused on the inner (R<5AU) or outer disk (R>100 AU) but not in the 5-30 AU region where giant planets are formed. The hot organic chemistry of 5-30 AU region can be explored with Herschel. We tentatively detected CH+ emission in four disks at 72.14 micron. CH+ is a starting ion in the reaction network leading to methane, HCN, of C2H2. Two of the disks are known to have an inner gap up to ~10AU. We propose to obtain deep observations of three rotational transitions of CH+ with Herschel-PACS. The aims of the proposals are: 1) confirm the detections, 2) study the excitation condistions of CH+ in disks, 3) explore the hot carbon chemistry in disks with our chemical code, 4) understand the role of inner gap in the disk chemistry.
Instrument PACS_PacsRangeSpec_point
Temporal Coverage 2013-01-19T08:46:41Z/2013-01-19T10:07:33Z
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 ┬Ám range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2013-07-19T08:46:41Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-07-19T08:46:41Z, OT1_wthi01_1, SPG v14.2.0. https://doi.org/10.5270/esa-b3ljx1k