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

Research output: Contribution to journalArticle

19 Citations (Scopus)


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
Issue number1
Publication statusPublished - Jan 1 2014



  • ISM: bubbles
  • catalogs
  • infrared: ISM
  • infrared: stars
  • stars: formation

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].