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The FMOS-COSMOS Survey of Star-forming Galaxies at Z ~ 1.6. V: Properties of Dark Matter Halos Containing Hα Emitting Galaxies
http://hdl.handle.net/2237/27029
http://hdl.handle.net/2237/2702958eb6d6d-a312-4a70-8b7b-1478c84c35eb
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-11 | |||||
タイトル | ||||||
タイトル | The FMOS-COSMOS Survey of Star-forming Galaxies at Z ~ 1.6. V: Properties of Dark Matter Halos Containing Hα Emitting Galaxies | |||||
言語 | en | |||||
著者 |
Kashino, Daichi
× Kashino, Daichi× More, Surhud× Silverman, John D.× Daddi, Emanuele× Renzini, Alvio× Sanders, David B.× Rodighiero, Giulia× Puglisi, Annagrazia× Kajisawa, Masaru× Valentino, Francesco× Kartaltepe, Jeyhan S.× Fèvre, Olivier Le× Nagao, Tohru× Arimoto, Nobuo× Sugiyama, Naoshi |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2017. The American Astronomical Society | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | galaxies: evolution | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | galaxies: formation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | galaxies: halos | |||||
抄録 | ||||||
内容記述 | We study the properties of dark matter halos that contain star-forming galaxies at 1.43 ≤ z ≤ 1.74, using the FMOS-COSMOS survey. The sample consists of 516 objects with a detection of the Hα emission line, which represent the star forming population at this epoch, having a stellar mass range of 10^9.57 ≤ M */M ⊙ lesssim 10^11.4 and a star-formation rate range of 15 lesssim SFR/(M ⊙ yr^−1) lesssim ^600. We measure the projected two-point correlation function while carefully taking into account observational biases, and find a significant clustering amplitude at scales of 0.04–10 h ^−1 cMpc, with a correlation length r0 =5.26-0.62^+0.75h^-1cMpc and a bias b =2.44-0.32^+0.38. We interpret our clustering measurement using a halo occupation distribution model. The sample galaxies appear to reside in halos with mass Mh=4.71-1.62^+1.19×10^12h^-1,M⊙ on average, which will likely become present-day halos of mass M h (z = 0) ~ 2 × 10^13 h ^−1 M ⊙, equivalent to the typical halo mass scale of galaxy groups. We then confirm the decline of the stellar-to-halo mass ratio at M h < 10^12 M ⊙, finding M */M h ≈ 5 × 10^−3 at M h = 7. 5 × 10^11 M ⊙, which is lower by a factor of 2–4 than those measured at higher masses (M h ~ 10^12–13 M ⊙). Finally, we use our results to illustrate the future capabilities of Subaru's Prime-Focus Spectrograph, a next-generation instrument that will provide strong constraints on the galaxy-formation scenario by obtaining precise measurements of galaxy clustering at z>1. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | IOP publishing | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3847/1538-4357/aa789d | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0004-637X | |||||
書誌情報 |
en : Astrophysical Journal 巻 843, 号 2, p. 138-138, 発行日 2017-07-10 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://doi.org/10.3847/1538-4357/aa789d | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/27029 | |||||
識別子タイプ | HDL |