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Title: Obscured AGE stars in the magellanic clouds
Authors: Loup, C ×
Zijlstra, AA
Waters, Laurentius
Groenewegen, Martin #
Issue Date: 1997
Publisher: EDITIONS PHYSIQUE
Series Title: Astronomy & astrophysics. Supplement series vol:125 issue:3 pages:419-437
Conference: date:EUROPEAN SO OBSERV,SANTIAGO 19,CHILE; EUROPEAN SO OBSERV,D-85748 GARCHING,GERMANY; UNIV AMSTERDAM,ASTRON INST ANTON PANNEKOEK,NL-1098 SJ AMSTERDAM,NETHERLANDS; MAX PLANCK INST ASTROPHYS,D-85740 GARCHING,GERMANY
Abstract: We have selected 198 IRAS sources in the Large Magellanic Cloud, and 11 in the Small Magellanic Cloud, which are the best candidates to be mass-loosing AGE stars (or possibly post-AGE stars). We used the catalogues of Schwering & Israel (1990) and Reid et al. (1990). They are based on the IRAS pointed observations and have lower detection limits than the Point Source Catalogue. We also made cross-identification between IRAS sources and optical catalogues. Our resulting catalogue is divided in 7 tables. Table 1 lists optically known red supergiants and AGB stars for which we found an IRAS counterpart (7 and 52 stars in the SMC and LMC, respectively). Table 2 lists ''obscured'' (or ''cocoon'') AGB stars or late-type supergiants which have been identified as such in previous works through their IRAS counterpart and JHKLM photometry (2 SMC and 34 LMC sources; no optical counterparts). Table 3 lists known planetary nebulae with an IRAS counterpart (4 SMC and 19 LMC PNe). Table 4 lists unidentified IRAS sources that we believe to be good AGE or post-AGE or PNe candidates (11 SMC and 198 LMC sources). Table 5 lists unidentified IRAS sources which could be any type of object (23 SMC and 121 LMC sources). Table 6 lists IRAS sources associated with foreground stars (29 SMC and 135 LMC stars). Table 7 lists ruled out IRAS sources associated with HII regions, hot stars, etc... We show that the sample of IRAS AGE stars in the Magellanic Clouds is very incomplete. Only AGE stars more luminous than typically 10(4) Lo and with a mass-loss rate larger than typically 5 10(-6) M./yr could be detected by the IRAS satellite. As a consequence, one expects to find very few carbon stars in the IRAS sample. We also expect that most AGE stars with intermediate mass-loss rates have not been discovered yet, neither in optical surveys, nor in the IRAS survey.(1).
ISSN: 0365-0138
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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