New infrared carbon stars in the IRAS point source catalog.

Details New infrared carbon stars in the IRAS point source catalog. New infrared carbon stars in the IRAS point source catalog.

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..122..489g&link_type=abstract

A & A Supplement series, Vol. 122, May I 1997, 489-494.

Astronomy and Astrophysics

Astronomy

18

Stars: Carbon, Stars: Late-Type, Stars: Agb And Post-Agb, Galaxy: Stellar Content, Infrared: Stars, Stars: Circumstellar Matter

Scientific paper

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 ~ 6000-9000 Angstrom 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. Based on observations obtained at the Observatoire de Haute Provence, France. Tables 2 and 3 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

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