Detection of a far-infrared bow shock nebula around R Hya: The first miriad results

T. Ueta, A. K. Speck, R. E. Stencel, F. Herwig, R. D. Gehrz, R. Szczerba, H. Izumiura, A. A. Zijlstra, W. B. Latter, M. Matsuura, M. Meixner, M. Steffen, M. Elitzur

    Research output: Contribution to journalArticlepeer-review


    We present the first results of the MIRIAD (MIPS InfraRed Imaging of AGB Dust shells) project using the Spitzer Space Telescope. The primary aim of the project is to probe the material distribution in the extended circumstellar envelopes (CSEs) of evolved stars and recover the fossil record of their mass-loss history. Hence, we must map the whole of the CSEs plus the surrounding sky for background subtraction while avoiding the central star that is brighter than the detector saturation limit. With our unique mapping strategy, we have achieved better than 1 MJy sr-1 sensitivity in 3 hr of integration and successfully detected a faint (
    Original languageEnglish
    Pages (from-to)L39-L42
    JournalAstrophysical Journal
    Issue number1
    Publication statusPublished - 1 Sept 2006


    • Circumstellar matter
    • Infrared: stars
    • ISM: structure
    • Stars: AGB and post-AGB
    • Stars: individual (R Hydrae)
    • Stars: mass loss


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