A&A Supplement series, Vol. 122, May I 1997, 489-494
Received June 13; accepted August 21, 1996
F. Guglielmo
, N. Epchtein
,
F. Arditti
, - F. Sèvre
Send offprint request: FG 
, "guglielmo@obspm.fr"
Leiden Observatory, NL-2300 RA Leiden, The Netherlands
Observatoire de Paris, Département de Recherche Spatiale,
URA CNRS 264, F-92195 Meudon Principal Cedex, France
Université de Paris
X-Nanterre, F-92000 Nanterre Cedex, France
Institut d'Astrophysique de Paris, CNRS UPR 341,
F-75014 Paris, France
We present new results of a search for infrared carbon stars (IRCS)
based on the combination of IRAS and near infrared colours. A sample
of 207 stars with IRAS colours that characterize IRCS
is selected and measured in the JHKL photometric bands. Using a [12 - 25] vs.
K - L colour diagram, 20 new IRCS candidates are proposed.
Medium resolution spectra in the 
Å range of 8 of these
candidates confirm their carbon rich nature.
In addition we propose a few stars with LRS class "4n" as oxygen-rich
candidates,
and a few stars with LRS classes "0n" and "1n" as carbon-rich.
keywords: stars: carbon -- stars: late-type -- stars: AGB and Post-AGB -- galaxy: stellar content -- infrared: stars -- stars: circumstellar matter