A dataset provided by the European Space Agency

Name SDP_mgerin_3
Title PRISMAS : PRobing InterStellar Molecules with Absorption line Studies
URL

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DOI 10.5270/esa-0mhsust
Author gerin, m.
Description We will carry out a comprehensive spectroscopic study of key molecular line carriers, probing interstellar hydrides and carbon chains. Our investigation will entail high-resolution HIFI spectroscopy of some 25 molecules towards 8 sources, and full spectral scans with PACS. The target hydrides contain the elements H, D, C, N, O, F and Cl. We will take advantage of the strong dust emission from massive star forming regions to detect multiple absorption components from foreground clouds of diverse properties that are known to intersect the selected sight-lines, along with emission and absorption intrinsic to the background sources. Our investigation will provide a wealth of new information about interstellar hydrides -- addressing key puzzles posed by previous observations from the ground since the 1940.s, and recently with ISO, SWAS, and ODIN -- and leaving an important Herschel legacy to astrochemistry and ISM science. We will address the role of high temperature chemical reactions in the formation of interstellar molecules, and the question of how such reactions might be driven. We will also investigate the role of grain surface reactions in interstellar chemistry, and the growth of carbon molecules, bridging the gap between molecules and aggregates, as unique spectroscopic signatures of carbon chains and rings, are accessible in the FIR. Many of the lines that are detectable with Herschel in the local Universe become accessible to ground-based observatories for redshifted sources. Our programme will provide an unique benchmark for the studies of molecular gas at high redshift with ALMA.
Publication Molecular ion abundances in the diffuse ISM: CF+, HCO+, HOC+, and C3H+ . Gerin M. et al. . Astronomy & Astrophysics, Volume 622, id.A26, 15 pp. . 622 . 10.1051\/0004-6361\/201833661 . 2019A&A...622A..26G ,
Herschel-HIFI measurements of the ortho-para ratio in water towards Sagittarius B2(M) and W31C . Lis D. C. et al. . Astronomy and Astrophysics, Volume 521, id.L26, 5 pp. . 521 . 10.1051\/0004-6361\/201015072 . 2010A&A...521L..26L ,
Instrument HIFI_HifiPoint_dbs
Temporal Coverage 2010-03-01T06:34:59Z/2010-04-18T01:27:52Z
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 2010-05-28T01:25:44Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-05-28T01:25:44Z, SDP_mgerin_3, SPG v14.1.0. https://doi.org/10.5270/esa-0mhsust