2003A&A...407..589W


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.12CEST02:48:44

2003A&A...407..589W - Astronomy and Astrophysics, volume 407, 589-607 (2003/8-4)

A spectral survey of the Orion Nebula from 455-507 GHz.

WHITE G.J., ARAKI M., GREAVES J.S., OHISHI M. and HIGGINBOTTOM N.S.

Abstract (from CDS):

The results of a submillimetre wavelength spectral line survey between 455.1-507.4GHz of the Orion-KL hot cloud core are reported. A total of 254 lines were detected to a main beam brightness temperature sensitivity Tmb∼1-3K. The detected lines are identified as being associated with 30 different molecular species or their isotopomeric variants. The strongest line detected was the J=4-3 transition of the CO molecule. Apart from abundant diatomic rotors such as CO and CS, the spectrum is dominated by SO, SO2 and CH3OH and large organic molecules such as (CH3)2O, CH3CN, C2H3CN, C2H5CN and HCOOCH3 which make up ∼72% of the total number of lines; unidentified lines ∼13%; and other lines the remaining ∼15% of the total. Rotational temperatures and column densities derived using standard rotation diagram analysis techniques were found to range from 70-300K, and 1014-1017cm2 respectively.

Abstract Copyright:

Journal keyword(s): molecules - star formation - molecular cloud

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2062 1
2 M 42 HII 05 35 17.3 -05 23 28           ~ 3786 0

    Equat.    Gal    SGal    Ecl

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2021.04.12-02:48:44

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