Nami Sakai

TL;DR: It is reported that the unsaturated hydrocarbon molecule cyclic-C3H2 resides in the infalling rotating envelope, whereas sulphur monoxide is enhanced in the transition zone at the radius of the centrifugal barrier (100 ± 20 au), which is the radius at which the kinetic energy of the inf falling gas is converted to rotational energy.

TL;DR: In this paper, high-excitation lines of carbon-chain molecules such as C4H2 (J ¼ 100;10Y90;9), C4 H( N ¼ 9Y8, F1, F2), l-C3H2(41,3Y31,2), and CH3CCH (J 2 5Y4, K ¼ 2) toward a low-mass star-forming region, L1527, were detected.

TL;DR: In this paper, the authors conducted a search for carbon-chain molecules toward 16 protostars with the Mopra 22 m and Nobeyama 45 m telescopes, and have detected high excitation lines from several species, such as C4H (N = 9-8), CH3CCH(N = 5-4, K = 2), and HC5N(J = 32-31), toward the low-mass protostar, IRAS15398-3359 in Lupus.

TL;DR: In this article, rotational spectral line emission of OCS, CH3OH, HCOOCH3, and H2CS was analyzed toward the low-mass Class 0 protostellar source IRAS 16293-2422 Source A at a sub-arcsecond resolution (~0".6 x 0".5) with ALMA.