Table 1
Derived column densities and upper limits.
Species | Name | Column density (cm−2) | Column density (cm−2) |
---|---|---|---|
Tex = 100 K | Tex = 70–250 K | ||
CH3OH | Methanol | 2 × 1015 | 1.0–2.5 × 1015 |
CH3OCH3 | Dimethyl ether | 1.5 × 1015 | 1.5–3.5 × 1015 |
CH3OCHO | Methyl formate | 1.3 × 1015 | 1.0–2.5 × 1015 |
13CH3OH | Methanol | <5.5 × 1014 | – |
CH2DOH | Methanol | <6.0 × 1014 | – |
t-HCOOH | Formic Acid | <2.0 × 1014 | – |
CH3CN | Methyl cyanide | <1.3 × 1013 | – |
CH3CHO | Acetaldehyde | <1.4 × 1014 | – |
CH3COOH | Acetic acid | <3.4 × 1015 | – |
CH2(OH)CHO | Glycoaldehyde | <1.8 × 1014 | – |
CH3SH | Methyl mercaptan | <4.0 × 1014 | – |
D2CO | Formaldehyde | <4.5 × 1013 | – |
HC3N | Cyanoacetylene | <2.2 × 1013 | – |
HNC | Hydrogen cyanide | <1.5 × 1012 | – |
HNCO | Isocyanic acid | <4.5 × 1013 | – |
NH2CH2COOH | Glycine, conf. I | <4.5 × 1015 | – |
NH2CH2COOH | Glycine, conf. II | <5.5 × 1014 | – |
Notes. Molecular information was obtained using the JPL and CDMS database (Müller et al. 2001, 2005; Pickett et al. 1998). The spectra were modelled using the CASSIS spectral analysis tool. For the detected lines, a range of Tex from 70 to 250 K was modelled. The 3σ upper limits were derivedassuming a Tex of 100 K.
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