S. Cazaux et al 2003 ApJ 593 L51 doi:10.1086/378038
S. Cazaux1, A. G. G. M. Tielens1,2, C. Ceccarelli3, A. Castets4, V. Wakelam4, E. Caux5, B. Parise5 and D. Teyssier2
Show affiliationsWhile warm dense gas is prevalent around low-mass protostars, the presence of complex saturated molecules—the chemical inventory characteristic of hot cores—has remained elusive in such environments. Here we report the results of an IRAM 30 m study of the molecular composition associated with the low-mass protostar IRAS 16293-2422. Our observations highlight an extremely rich organic inventory in this source with abundant amounts of complex O- and N-bearing molecules such as formic acid, HCOOH, acetaldehyde, CH3CHO, methyl formate, CH3OCHO, dimethyl ether, CH3OCH3, acetic acid, CH3COOH, methyl cyanide, CH3CN, ethyl cyanide, C2H5CN, and propyne, CH3CCH. We compare the composition of the hot core around this low-mass young stellar object with those around massive protostars and address the chemical processes involved in molecular complexity in regions of star formation.
ISM: abundances; ISM: individual (IRAS 16293−2422); ISM: molecules; stars: formation
Issue 1 (2003 August 10)
Received 2003 March 24, accepted for publication 2003 June 26
Published 2003 July 9
S. Cazaux et al 2003 ApJ 593 L51
Shoko Sakai et al. 1997 ApJ 478 49