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A method for mapping the aliphatic hydrocarbon content of interstellar dust towards the Galactic Centre

dc.contributorDepartment of Astronomy and Space Sciences, Ege University, 35100 Bornova, İzmir, Turkey; School of Physics, UNSW Sydney, NSW 2052, Australia; ARC Centre of Excellence in Exciton Science, School of Chemistry, UNSW Sydney, NSW 2052, Australia
dc.contributorSchool of Physics, UNSW Sydney, NSW 2052, Australia; Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK
dc.contributorDepartment of Astronomy and Space Sciences, Ege University, 35100 Bornova, İzmir, Turkey
dc.contributorARC Centre of Excellence in Exciton Science, School of Chemistry, UNSW Sydney, NSW 2052, Australia
dc.contributor.authorGünay, B.
dc.contributor.authorBurton, M. G.
dc.contributor.authorAfşar, M.
dc.contributor.authorSchmidt, T. W.
dc.date.accessioned2024-02-21T11:03:13Z
dc.date.available2024-02-21T11:03:13Z
dc.date.issued2020-03-01T00:00:00Z
dc.identifier.doi10.1093/mnras/staa288
dc.identifier.doi10.48550/arXiv.2002.04610
dc.identifier.other2020arXiv200204610G
dc.identifier.other2020MNRAS.tmp..286G
dc.identifier.otherastro-ph.GA
dc.identifier.otherastro-ph.IM
dc.identifier.otherarXiv:2002.04610
dc.identifier.other2020MNRAS.493.1109G
dc.identifier.other10.48550/arXiv.2002.04610
dc.identifier.other10.1093/mnras/staa288
dc.identifier.other2020MNRAS.tmp..286G
dc.identifier.other2020arXiv200204610G
dc.identifier.other0000-0002-2449-0214
dc.identifier.other0000-0001-7289-1998
dc.identifier.other-
dc.identifier.urihttp://hdl.handle.net/20.500.14302/1781
dc.description.abstractIn the interstellar medium, the cosmic elemental carbon abundance includes the total carbon in both gas and solid phases. The aim of the study was to trial a new method for measuring the amount and distribution of aliphatic carbon within interstellar dust over wide fields of view of our Galaxy. This method is based on the measurement of the 3.4-μm absorption feature from aliphatic carbonaceous matter. This can readily be achieved for single sources using infrared (IR) spectrometers. However, making such measurements over wide fields requires an imaging IR camera, equipped with narrow-band filters that are able to sample the spectrum. While this cannot produce as good a determination of the spectra, the technique can be applied to potentially tens to hundreds of sources simultaneously, over the field of view of the camera. We examined this method for a field in the centre of the Galaxy, and produced a map showing the variation of 3.4-μm optical depth across it.
dc.publisherMonthly Notices of the Royal Astronomical Society
dc.titleA method for mapping the aliphatic hydrocarbon content of interstellar dust towards the Galactic Centre
dc.typearticle
dc.source.journalMNRAS
dc.source.journalMNRAS.493
dc.source.volume493
refterms.dateFOA2024-02-21T11:03:13Z
dc.identifier.bibcode2020MNRAS.493.1109G


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