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Sökning: WFRF:(Fontani F.) > (2014) > A high-resolution s...

  • Calcutt, Hannah,1988University College London (UCL) (författare)

A high-resolution study of complex organic molecules in hot cores

  • Artikel/kapitelEngelska2014

Förlag, utgivningsår, omfång ...

  • 2014-08-07
  • Oxford University Press (OUP),2014

Nummerbeteckningar

  • LIBRIS-ID:oai:research.chalmers.se:78a4cef3-c69f-4c35-ac50-ddfc893c564f
  • https://doi.org/10.1093/mnras/stu1363DOI
  • https://research.chalmers.se/publication/513440URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • We present the results ofa line identification analysis using data from theIRAMPlateau de Bure Plateau de Bure Interferometer, focusing on six massive star-forming hot cores: G31.41+0.31, tify several transitions of vibrationally excited methyl formate (HCOOCH3) for the first time G29.96−0.02, G19.61−0.23, G10.62−0.38, G24.78+0.08A1 and G24.78+0.08A2.We iden- in these objects as well as transitions of other complex molecules, including ethyl cyanide (C2H5CN), and isocyanic acid (HNCO). We also postulate a detection of one transition of glycolaldehyde (CH2(OH)CHO) in two new hot cores. We find G29.96−0.02, G19.61−0.23, is chemically different: it manifests a larger chemical inventory and has significantly larger col- G24.78+0.08A1 and G24.78+0.08A2 to be chemically very similar. G31.41+0.31, however, umn densities. We suggest that it may represent a different evolutionary stage to the other hot cores in the sample, or it may surround a star with a higher mass. We derive column densities for methyl formate in G31.41+0.31, using the rotation diagram method, of 4 × 1017 cm−2 and methyl formate and methyl cyanide, all seem to trace the same material and peak at roughly a Trot of ∼170 K. For G29.96−0.02, G24.78+0.08A1 and G24.78+0.08A2, glycolaldehyde, the same position towards the dust emission peak. For G31.41+0.31, however, glycolaldehyde shows a different distribution to methyl formate and methyl cyanide and seems to trace the densest, most compact inner part of hot cores.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Viti, SerenaUniversity College London (UCL) (författare)
  • Codella, C.Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory (författare)
  • Beltrán, Maria T.Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory (författare)
  • Fontani, F.Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory (författare)
  • Woods, P. M.Queen's University Belfast,University College London (UCL) (författare)
  • University College London (UCL)Osservatorio Astrofisico di Arcetri (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)443:4, s. 3157-31730035-87111365-2966

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