The SOFIA Massive (SOMA) Star Formation Q-band follow-up - I. Carbon-chain chemistry of intermediate-mass protostars

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Volume 692 (December 2024)

A&A, 692 (2024) A65

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Table 2

Detection status in IM protostars.

Species	Cepheus E	L1206	HH288	100420	120343	100259	I05380	I20293	121307	I22198	I23385
Carbon-chain molecules
HC₃N	√	√	√	√	√	√	√	√	√	√	√
HC₅N	√	√	√	√	√	√		√		√	√
C₃H		√	√	√		√				√
C₄H	√	√	√	√	√	√	√		√	√	√
l-H₂CCC	(√)	√	√	√	√	(√)				√	√
c-C₃H₂	√	√	√	√	√	√		√		√	√
CCS	√	√	√	√	√	√	√	√		√	√
C₃S	√	√	√							√
CH₃CCH		√	√		√			√		√

COMs
CH₃OH	√	√	√	√	√	√		√	√	√	√
CH₃CHO	√	√	√	√	√	√		√		√	√
CH₃CN	√	√	√	√	√	√				√

H₂CCO	√	√	√	√	√	√				√
HNCO	√	√	√	√	√	√		√		√

S-bearing species
¹³CS	√	√	√	√	√	√		√	√	√	√
C³⁴S	√	√	√	√	√	√		√	√	√	√
HCS⁺	√	√	√	√	√	√		√	√	√	√
H₂CS	√	√	√	√	√	√		√	√	√	√

Notes. 1-H₂CCC has been tentatively detected with a S/N of 3 in Cepheus E and 100259, as indicated by the parentheses around the check mark: (√).

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