A study on the mid-infrared sources that dramatically brightened

  title={A study on the mid-infrared sources that dramatically brightened},
  author={H. Onozato and Y. Ita and K. Ono and M. Fukagawa and K. Yanagisawa and H. Izumiura and Y. Nakada and N. Matsunaga},
  journal={Publications of the Astronomical Society of Japan},
  • H. Onozato, Y. Ita, +5 authors N. Matsunaga
  • Published 2015
  • Physics
  • Publications of the Astronomical Society of Japan
  • We present results of near-infrared photometric and spectroscopic observations of mid-infrared (MIR) sources that dramatically brightened. Using IRAS, AKARI, and WISE point source catalogs, we found that 4 sources (IRAS 19574+491, V2494 Cyg, IRAS 22343+7501, and V583 Cas) significantly brightened at MIR wavelengths over the 20-30 years of difference in observing times. Little is known about these sources except V2494 Cyg, which is considered a FU Orionis star. Our observation clearly resolves… CONTINUE READING
    3 Citations


    High Resolution Near-Infrared Spectroscopy of FUors and FUor-like stars
    • 35
    • PDF
    V2494 Cyg: a unique FU Ori type object in the Cygnus OB7 complex
    • 9
    • PDF
    The AKARI/IRC mid-infrared all-sky survey
    • 382
    • PDF