3 micron imaging of the Hubble Deep Field

David W. Hogg, Gerry Neugebauer, Judith G. Cohen, Mark Dickinson, S. G. Djorgovski, Keith Matthews, B. T. Soifer

    Research output: Contribution to journalArticle

    Abstract

    Images of the Hubble Deep Field (HDF) at 3.2 μm, taken with the 10 m Keck Telescope, are presented. The images cover a total area of ∼ 2.5 arcmin2. To a 5 σ limit of [3.2]tot ≈ 17.5 mag (Vega relative), 11 sources are detected, nine of which are extragalactic. The integrated galaxy number counts are therefore ∼ 1.3 × 104 deg-2 to this depth. The galaxies detected at 3.2 μm have a median redshift of z = 0.56. All 3.2 μm sources have 1.6 μm, 1.1 μm, and visual counterparts, all of fairly regular morphology; several also have 6.7 μm, 15 μm, 850 μm, 8.5 GHz, or 1.4 GHz counterparts. No sources are found that are either anomalously red or anomalously blue in their H - [3.2] color, and there are significant detections of most of the known near-infrared HDF sources for which detection in these 3.2 μm data seemed likely.

    Original languageEnglish (US)
    Pages (from-to)1519-1525
    Number of pages7
    JournalAstronomical Journal
    Volume119
    Issue number4
    StatePublished - Apr 2000

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    near infrared
    galaxies
    telescopes
    color
    detection

    Keywords

    • Galaxies: photometry
    • Galaxies: statistics
    • Infrared radiation
    • Techniques: photometric

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Astronomy and Astrophysics

    Cite this

    Hogg, D. W., Neugebauer, G., Cohen, J. G., Dickinson, M., Djorgovski, S. G., Matthews, K., & Soifer, B. T. (2000). 3 micron imaging of the Hubble Deep Field. Astronomical Journal, 119(4), 1519-1525.

    3 micron imaging of the Hubble Deep Field. / Hogg, David W.; Neugebauer, Gerry; Cohen, Judith G.; Dickinson, Mark; Djorgovski, S. G.; Matthews, Keith; Soifer, B. T.

    In: Astronomical Journal, Vol. 119, No. 4, 04.2000, p. 1519-1525.

    Research output: Contribution to journalArticle

    Hogg, DW, Neugebauer, G, Cohen, JG, Dickinson, M, Djorgovski, SG, Matthews, K & Soifer, BT 2000, '3 micron imaging of the Hubble Deep Field', Astronomical Journal, vol. 119, no. 4, pp. 1519-1525.
    Hogg DW, Neugebauer G, Cohen JG, Dickinson M, Djorgovski SG, Matthews K et al. 3 micron imaging of the Hubble Deep Field. Astronomical Journal. 2000 Apr;119(4):1519-1525.
    Hogg, David W. ; Neugebauer, Gerry ; Cohen, Judith G. ; Dickinson, Mark ; Djorgovski, S. G. ; Matthews, Keith ; Soifer, B. T. / 3 micron imaging of the Hubble Deep Field. In: Astronomical Journal. 2000 ; Vol. 119, No. 4. pp. 1519-1525.
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    AU - Hogg, David W.

    AU - Neugebauer, Gerry

    AU - Cohen, Judith G.

    AU - Dickinson, Mark

    AU - Djorgovski, S. G.

    AU - Matthews, Keith

    AU - Soifer, B. T.

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    N2 - Images of the Hubble Deep Field (HDF) at 3.2 μm, taken with the 10 m Keck Telescope, are presented. The images cover a total area of ∼ 2.5 arcmin2. To a 5 σ limit of [3.2]tot ≈ 17.5 mag (Vega relative), 11 sources are detected, nine of which are extragalactic. The integrated galaxy number counts are therefore ∼ 1.3 × 104 deg-2 to this depth. The galaxies detected at 3.2 μm have a median redshift of z = 0.56. All 3.2 μm sources have 1.6 μm, 1.1 μm, and visual counterparts, all of fairly regular morphology; several also have 6.7 μm, 15 μm, 850 μm, 8.5 GHz, or 1.4 GHz counterparts. No sources are found that are either anomalously red or anomalously blue in their H - [3.2] color, and there are significant detections of most of the known near-infrared HDF sources for which detection in these 3.2 μm data seemed likely.

    AB - Images of the Hubble Deep Field (HDF) at 3.2 μm, taken with the 10 m Keck Telescope, are presented. The images cover a total area of ∼ 2.5 arcmin2. To a 5 σ limit of [3.2]tot ≈ 17.5 mag (Vega relative), 11 sources are detected, nine of which are extragalactic. The integrated galaxy number counts are therefore ∼ 1.3 × 104 deg-2 to this depth. The galaxies detected at 3.2 μm have a median redshift of z = 0.56. All 3.2 μm sources have 1.6 μm, 1.1 μm, and visual counterparts, all of fairly regular morphology; several also have 6.7 μm, 15 μm, 850 μm, 8.5 GHz, or 1.4 GHz counterparts. No sources are found that are either anomalously red or anomalously blue in their H - [3.2] color, and there are significant detections of most of the known near-infrared HDF sources for which detection in these 3.2 μm data seemed likely.

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    KW - Galaxies: statistics

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