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A PHOTOMETRIC REDSHIFT OF z similar to 9.4 FOR GRB 090429B
文献类型：期刊论文
| 作者 | Cucchiara, A.1,2,3; Levan, A. J.4; Fox, D. B.1; Tanvir, N. R.5; Ukwatta, T. N.6,7; Berger, E.8; Kruehler, T.9,10; Yoldas, A. Kuepcue11,12; Wu, X. F.1,13; Toma, K.1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2011-07-20 |
| 卷号 | 736期号:1 |
| 关键词 | early universe galaxies: high-redshift gamma-ray burst: individual (GRB 090429R) techniques: photometric |
| 英文摘要 | Gamma-ray bursts (GRBs) serve as powerful probes of the early universe, with their luminous afterglows revealing the locations and physical properties of star-forming galaxies at the highest redshifts, and potentially locating first-generation (Population III) stars. Since GRB afterglows have intrinsically very simple spectra, they allow robust redshifts from low signal-to-noise spectroscopy, or photometry. Here we present a photometric redshift of z similar to 9.4 for the Swift detected GRB 090429B based on deep observations with Gemini-North, the Very Large Telescope, and the GRB Optical and Near-infrared Detector. Assuming a Small Magellanic Cloud dust law (which has been found in a majority of GRB sight lines), the 90% likelihood range for the redshift is 9.06 < z < 9.52, although there is a low-probability tail toward somewhat lower redshifts. Adopting Milky Way or Large Magellanic Cloud dust laws leads to very similar conclusions, while a Maiolino law does allow somewhat lower redshift solutions, though in all cases the most likely redshift is found to be z > 7. The non-detection of the host galaxy to deep limits (Y (AB) similar to 28, which would correspond roughly to 0.001L* at z = 1) in our late-time optical and infrared observations with the Hubble Space Telescope strongly supports the extreme-redshift origin of GRB 090429B, since we would expect to have detected any low-z galaxy, even if it were highly dusty. Finally, the energetics of GRB 090429B are comparable to those of other GRBs and suggest that its progenitor is not greatly different from those of lower redshift bursts. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY BURSTS ; GALAXY LUMINOSITY FUNCTION ; CORE-COLLAPSE SUPERNOVAE ; DIGITAL SKY SURVEY ; SWIFT-ERA ; HOST GALAXIES ; LIGHT CURVES ; DUST ; AFTERGLOW ; TELESCOPE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292645600007 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/15959]  |
| 专题 | 紫金山天文台_南极天文中心 |
| 作者单位 | 1.Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA 2.Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA 3.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA 4.Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England 5.Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England 6.George Washington Univ, Dept Phys, Washington, DC 20052 USA 7.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA 8.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA 9.Max Planck Inst Extraterr Phys, D-85740 Garching, Germany 10.Tech Univ Munich, D-85748 Garching, Germany |
| 推荐引用方式 GB/T 7714 | Cucchiara, A.,Levan, A. J.,Fox, D. B.,et al. A PHOTOMETRIC REDSHIFT OF z similar to 9.4 FOR GRB 090429B[J]. ASTROPHYSICAL JOURNAL,2011,736(1). |
| APA | Cucchiara, A..,Levan, A. J..,Fox, D. B..,Tanvir, N. R..,Ukwatta, T. N..,...&D'Avanzo, P..(2011).A PHOTOMETRIC REDSHIFT OF z similar to 9.4 FOR GRB 090429B.ASTROPHYSICAL JOURNAL,736(1). |
| MLA | Cucchiara, A.,et al."A PHOTOMETRIC REDSHIFT OF z similar to 9.4 FOR GRB 090429B".ASTROPHYSICAL JOURNAL 736.1(2011). |
入库方式： OAI收割
来源：紫金山天文台
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