The Spatial Distribution of Organics toward the High-mass YSO NGC 7538 IRS9

Karin I. Oeberg*, Mavis D. Boamah, Edith C. Fayolle, Robin T. Garrod, Claudia J. Cyganowski, Floris van der Tak

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

29 Citaten (Scopus)
265 Downloads (Pure)


Complex molecules have been broadly classified into three generations dependent on the mode of formation and the required formation temperature (100 K). Around massive young stellar objects (MYSOs), icy grain mantles and gas are exposed to increasingly higher temperatures as material accretes from the outer envelope in toward the central hot region. The combination of this temperature profile and the generational chemistry should result in a changing complex molecular composition with radius around MYSOs. We combine IRAM 30 m and Submillimeter Array observations to explore the spatial distribution of organic molecules around the high-mass young stellar object NGC 7538 IRS9, whose weak complex molecule emission previously escaped detection. We find that emission from N-bearing organics and CH3OH present substantial increases in emission around 8000 AU and R

Originele taal-2English
Aantal pagina's16
TijdschriftAstrophysical Journal
Nummer van het tijdschrift2
StatusPublished - 10-jul.-2013

Citeer dit