An unbiased spectral line survey observation toward the low-mass star-forming region L1527

Abstract

An unbiased spectral line survey toward a solar-type Class 0/I protostar, IRAS04368+2557, in L1527 has been carried out in the 3 mm band with the Nobeyama 45 m telescope. L1527 is known as a warm carbon-chain chemistry (WCCC) source, which harbors abundant unsaturated organic species such as C${}_n$H ($n=3,4,5,\dots$) in a warm and dense region near the protostar. The observation covers the frequency range from 80 to 116 GHz. A supplementary observation has also been conducted in the 70 GHz band to observe fundamental transitions of deuterated species. In total, 69 molecular species are identified, among which 27 species are carbon-chain species and their isomers, including their minor isotopologues. This spectral line survey provides us with a good template of the chemical composition of the WCCC source.

published online in PASJ

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Cited by in corpus (22)

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• Hunting for hot corinos and WCCC sources in the OMC-2/3 filament
• The connection between warm carbon chain chemistry and interstellar irradiation of star-forming cores
• Depletion and fractionation of nitrogen in collapsing cores
• Similar levels of deuteration in the pre-stellar core L1544 and the protostellar core HH211
• Study of the HCCNC and HNCCC isotopologs in TMC-1
• Carbon Chain Chemistry in Hot-Core Regions around Three Massive Young Stellar Objects Associated with 6.7 GHz Methanol Masers
• The First Detection of CH${}_2$CN in a Protoplanetary Disk
• PRODIGE - envelope to disk with NOEMA: V. Low 12C/13C ratios for CH3OH and CH3CN in hot corinos
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• The SOFIA Massive (SOMA) Star Formation Q-band follow-up I. Carbon-chain chemistry of intermediate-mass protostars
• Gas phase Elemental abundances in Molecular cloudS (GEMS). IX. Deuterated compounds of H2S in starless cores
• Gas-phase Elemental abundances in Molecular cloudS (GEMS) XI. The evolution of HCN, HNC, and N2H+ isotopic ratios in starless cores
• Post-Outburst Chemistry in a Very Low-Luminosity Object: Peculiar High Abundance of Nitric Oxide
• Effects of grain temperature distribution on organic protostellar envelope chemistry