Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 2014 | Published + Submitted
Journal Article Open

Complex organic molecules in comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy): detection of ethylene glycol and formamide

Abstract

A spectral survey in the 1 mm wavelength range was undertaken in the long-period comets C/2012 F6 (Lemmon) and C/2013 R1 (Lovejoy) using the 30 m telescope of the Institut de radioastronomie millimétrique (IRAM) in April and November−December 2013. We report the detection of ethylene glycol (CH_2OH)_2 (aGg' conformer) and formamide (NH_2CHO) in the two comets. The abundances relative to water of ethylene glycol and formamide are 0.2–0.3% and 0.02% in the two comets, similar to the values measured in comet C/1995 O1 (Hale-Bopp). We also report the detection of HCOOH and CH_3CHO in comet C/2013 R1 (Lovejoy), and a search for other complex species (methyl formate, glycolaldehyde).

Additional Information

© 2014 ESO. Received: 27 March 2014. Accepted: 23 May 2014. Published online 19 June 2014. This research has been supported by the Programme national de planétologie de l'Institut des sciences de l'univers (INSU).

Attached Files

Published - aa23890-14.pdf

Submitted - 1405.6605v1.pdf

Files

aa23890-14.pdf
Files (336.6 kB)
Name Size Download all
md5:b89d558a6bdabc8022ec6c09929a4071
209.5 kB Preview Download
md5:5cc64b938c6fee7885d41520a07e1f9d
127.1 kB Preview Download

Additional details

Created:
August 20, 2023
Modified:
October 17, 2023