A dataset provided by the European Space Agency

Name OT2_ccodella_2
Title Where is chlorine in shocked regions?


DOI 10.5270/esa-2l8ilvf
Author codella, c.
Description As part of the GT Herschel Program CHESS we detected for the first time hydrogen chlorine in a protostellar shock, L1157-B1 (Codella et al. 2011). One of the most surprising results of this work was the lack of enhancement in the abundance of HCl with respect to dense interstellar clouds, implying that HCl is not enhanced by the passage of a shock. This means that either chlorine is not sputtered during the passage of the shock (unlikely as Si is sputtered) or that HCl is not the main reservoir of clorine in shocked regions (unlike in dense interstellar clouds). In this proposal we propose to observe HCl in a sample of shocked regions in order to determine whether this result is unique to L1157-B1. We stress that given the weakness of the HCl emission in shocks and the strong atmospheric water absorption at the requested frequency (626 GHz), the present experiment cannot be reasonably performed from ground, making of Herschel OT2 the last chance to reach the present goals.
Instrument HIFI_HifiPoint_dbs
Temporal Coverage 2013-04-13T01:51:44Z/2013-04-13T03:39:35Z
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 2013-10-13T01:51:44Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-10-13T01:51:44Z, OT2_ccodella_2, SPG v14.1.0. https://doi.org/10.5270/esa-2l8ilvf