The AKARI Far-Infrared Surveyor young stellar object catalog

L. Viktor Tóth, Gábor Marton, Sarolta Zahorecz, Lajos G. Balázs, Munetaka Ueno, Motohide Tamura, Akiko Kawamura, Zoltán T. Kiss, Yoshimi Kitamura

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19 Citations (Scopus)

Abstract

We demonstrate the use of the AKARI all-sky survey photometric data in the study of galactic star formation. Our aim was to select young stellar objects (YSOs) in the AKARI Far-Infrared Surveyor (FIS) Bright Source Catalogue. We used AKARI/FIS and Wide-field Infrared Survey Explorer (WISE) data to derive mid- and far-infrared colors of YSOs. Classification schemes based on quadratic discriminant analysis (QDA) have been given for YSOs and the training catalog for QDA was the whole-sky selection of previously known YSOs (i.e., listed in the SIMBAD database). A new catalog of AKARI FIS YSO candidates including 44001 sources has been prepared; the reliability of the classification is over 90%, as tested in comparison to known YSOs. As much as 76% of our YSO candidates are from previously uncatalogued types. The vast majority of these sources are Class I and II types according to the Lada classification. The distribution of AKARI FIS YSOs is well correlated with that of the galactic ISM; local over-densities were found on infrared loops and towards the cold clumps detected by Planck.

Original languageEnglish
Article number17
JournalPublications of the Astronomical Society of Japan
Volume66
Issue number1
DOIs
Publication statusPublished - jan. 1 2014

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ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Tóth, L. V., Marton, G., Zahorecz, S., Balázs, L. G., Ueno, M., Tamura, M., Kawamura, A., Kiss, Z. T., & Kitamura, Y. (2014). The AKARI Far-Infrared Surveyor young stellar object catalog. Publications of the Astronomical Society of Japan, 66(1), [17]. https://doi.org/10.1093/pasj/pst017