Images - III. The evolution of the near-infrared Tully-Fisher relation over the last 6 Gyr
文献类型：期刊论文
| 作者 | Puech, M.1,2; Flores, H.2; Yang, Y.2; Neichel, B.2; Lehnert, M.2; Chemin, L.2; Nesvadba, N.2; Epinat, B.2,5; Amram, P.5; Balkowski, C.2 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2008-06-01 |
| 卷号 | 484期号:1页码:173-187 |
| 关键词 | galaxies : evolution galaxies : kinematics and dynamics galaxies : high-redshift galaxies : general galaxies : interactions galaxies : spiral |
| 英文摘要 | Using the multi-integral field spectrograph GIRAFFE at VLT, we have derived the K-band Tully-Fisher relation (TFR) at z similar to 0.6 for a representative sample of 65 galaxies with emission lines (W(0)(OII) >= 15 angstrom). We confirm that the scatter in the z similar to 0.6 TFR is caused by galaxies with anomalous kinematics, and find a positive and strong correlation between the complexity of the kinematics and the scatter that they contribute to the TFR. Considering only relaxed-rotating disks, the scatter, and possibly also the slope, of the TFR, do not appear to evolve with redshift. We detect an evolution of the K-band TFR zero point between z similar to 0.6 and z = 0, which, if interpreted as an evolution of the K-band luminosity of rotating disks, would imply that a brightening of 0.66 +/- 0.14 mag occurs between z similar to 0.6 and z = 0. Any disagreement with the results of Flores et al. (2006, A&A, 455, 107) are attributed to both an improvement of the local TFR and the more detailed accurate measurement of the rotation velocities in the distant sample. Most of the uncertainty can be explained by the relatively coarse spatial-resolution of the kinematical data. Because most rotating disks at z similar to 0.6 are unlikely to experience further merging events, one may assume that their rotational velocity, which is taken as a proxy of the total mass, does not evolve dramatically. If true, our result implies that rotating disks observed at z similar to 0.6 are rapidly transforming their gas into stars, to be able to double their stellar masses and be observed on the TFR at z = 0. The rotating disks observed are indeed emission-line galaxies that are either starbursts or LIRGs, which implies that they are forming stars at a high rate. Thus, a significant fraction of the rotating disks are forming the bulk of their stars within 6 to 8 Gyr, in good agreement with former studies of the evolution of the mass-metallicity relationship. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000256309400017 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7391]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.ESO, D-85748 Garching, Germany 2.Univ Paris Diderot, CNRS, Observ Paris, GEPI, F-92190 Meudon, France 3.Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India 4.Osservatorio Astron Bologna, INAF, I-40127 Bologna, Italy 5.Astron Observ, Lab Astron Marseille, F-13248 Marseille, France 6.MPIA, D-69117 Heidelberg, Germany 7.Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy 8.Ctr Rech Astron Lyon, F-69561 St Genis Laval, France 9.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 10.AlbaNova Univ Ctr, Stockholm Observ, Stockholms Ctr Phys Astron & Biotechnol, Stockholm 10691, Sweden |
| 推荐引用方式 GB/T 7714 | Puech, M.,Flores, H.,Yang, Y.,et al. Images - III. The evolution of the near-infrared Tully-Fisher relation over the last 6 Gyr[J]. ASTRONOMY & ASTROPHYSICS,2008,484(1):173-187. |
| APA | Puech, M..,Flores, H..,Yang, Y..,Neichel, B..,Lehnert, M..,...&Wozniak, H..(2008).Images - III. The evolution of the near-infrared Tully-Fisher relation over the last 6 Gyr.ASTRONOMY & ASTROPHYSICS,484(1),173-187. |
| MLA | Puech, M.,et al."Images - III. The evolution of the near-infrared Tully-Fisher relation over the last 6 Gyr".ASTRONOMY & ASTROPHYSICS 484.1(2008):173-187. |
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来源：国家天文台
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