| タイトル | Interferometric Follow-Up of Wise Hyper-Luminous Hot, Dust-Obscured Galaxies |
| 本文（外部サイト） | http://hdl.handle.net/2060/20150009318 |
| 著者（英） | Eisenhardt, Peter R. M.; Assef, Roberto J.; Bridge, Carrie R.; Moustakas, Leonidas; Wright, Edward L.; Benford, Dominic J.; Tsai, Chao-Wei; Gelino, Christopher R.; Petric, Andreea; Bussmann, R. Shane; Blain, Andrew; Wu, Jingwen; Stern, Daniel |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2014-08-27 |
| 言語 | eng |
| 内容記述 | The Wide-field Infrared Survey Explorer (WISE) has discovered an extraordinary population of hyper-luminous dusty galaxies that are faint in the two bluer passbands (3.4m and 4.6m) but are bright in the two redder passbands of WISE (12 micrometers and 22micrometer). We report on initial follow-up observations of three of these hot, dustobscured galaxies, or Hot DOGs, using the Combined Array for Research in Millimeter-wave Astronomy and the Submillimeter Array interferometer arrays at submillimeter/millimeter wavelengths. We report continuum detections at approx. 1.3 mm of two sources (WISE J014946.17+235014.5 and WISE J223810.20+265319.7, hereafter W0149+2350 and W2238+2653, respectively), and upper limits to CO line emission at 3 mm in the observed frame for two sources (W0149+2350 and WISE J181417.29+341224.8, hereafterW1814+3412). The 1.3 mm continuum images have a resolution of 1-2 and are consistent with single point sources. We estimate the masses of cold dust are 2.0 10(exp 8) Solar mass for W0149+2350 and 3.9 10(exp 8) Solar mass for W2238+2653, comparable to cold dust masses of luminous quasars. We obtain 2 sigma upper limits to the molecular gas masses traced by CO, which are 3.3 10(exp 10) solar mass and 2.3 10(exp 10) solar mass for W0149+2350 and W1814+3412, respectively. We also present high-resolution, near-IR imaging with the WFC3 on the Hubble Space Telescope for W0149+2653 and with NIRC2 on Keck for W2238+2653. The near-IR images show morphological structure dominated by a single, centrally condensed source with effective radius less than 4 kpc. No signs of gravitational lensing are evident. |
| NASA分類 | Astrophysics |
| レポートNO | GSFC-E-DAA-TN21529 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/558807 |
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