A dataset provided by the European Space Agency

Name OT2_yokada_2
Title Si and Fe depletion study in both ionized and PDR gas of Galactic star-forming regions combined with Spitzer


DOI https://doi.org/10.5270/esa-2feyfpb
Author European Space Agency
Description We propose PACS line spectroscopy observations as well as partly photometry to estimate the Si and Fe gas-phase abundance with a clear separation of the contribution from the ionized and photodissociation region (PDR) gas combined with Spitzer/IRS observations (GO2; ID200612) in 7 Galactic star-forming regions. With Spitzer/IRS observations the Si and Fe gas-phase abundance has been examined and the depletion of Si is shown to be clearly larger than that of Fe, but the attribution of the origin of [SiII] 35 micron and [FeII] 26 micron are very limited and individual gas-phase abundance has large uncertainties. In this proposal, we plan to separate two gas-phases of the ionized and PDR gas from taking the correlation of the [SiII] 35 micron and [FeII] 26 micron emission with [NII] 122 micron and [OI] 146 micron. The electron density derived from [NII] 122 micron / 205 micron and the PDR properties derived from [OI] 63 micron and 146 micron, [CII] 158 micron, and the total far-infrared flux will be used to convert the line intensity ratio into the ionic abundance ratio.
Instrument PACS_PacsLineSpec_point
Temporal Coverage 2013-04-21T13:28:16Z/2013-04-21T14:17:47Z
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 2013-10-21T13:54:06Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013, Si And Fe Depletion Study In Both Ionized And Pdr Gas Of Galactic Star-Forming Regions Combined With Spitzer, SPG v14.2.0, European Space Agency, https://doi.org/10.5270/esa-2feyfpb