Abstract The chemical classification of IRAS 17515--2407 has been debated for a long time. Up to now there are two contenders, oxygen-rich or carbon-rich. We believe that IRAS 17515--2407 is an oxygen-rich source: because (i) it shows the silicate self-absorbed emission; (ii) in the near infrared-IRAS diagram it is located in the oxygen-rich object region and (iii) particularly, it has detected SiO maser emission.
Keywords stars: AGB -- stars: chemical classification -- stars: maser -- infrared: stars
It accepts original submissions from all over the world and is internationally published and distributed by IOP