Výsledky vyhledávání - "Dongfei Jiang"

Mapping the Galactic disk with the LAMOST and $Gaia$ Red clump sample: V: On the origin of the 'young' [$\alpha$/Fe]-enhanced stars

Autor: Dongfei Jiang, Ming Zhang, Bin Chen, H. F. Wang, Xiang-Kun Liu, D. D. Wei, Wei-Xiang Sun, H. W. Zhang, X. Y. Li, Yu Huang, Chi Wang

Using a sample of nearly 140,000 primary red clump stars selected from the LAMOST and $Gaia$ surveys, we have identified a large sample of "young" [$\alpha$/Fe]-enhanced stars with stellar ages younger than 6.0 Gyr and [$\alpha$/Fe] ratios greater th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e77c62d6c71fb069bff40b57805df258
http://arxiv.org/abs/2008.10218

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On the Transition of the Galaxy Quenching Mode at 0.5 < z < 1 in CANDELS

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2018, 860 (1), pp.60. ⟨10.3847/1538-4357/aac20d⟩
The Astrophysical Journal, American Astronomical Society, 2018, 860 (1), pp.60. ⟨10.3847/1538-4357/aac20d⟩
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname

We investigate the galaxy quenching process at intermediate redshift using a sample of $\sim4400$ galaxies with $M_{\ast} > 10^{9}M_{\odot}$ between redshift 0.5 and 1.0 in all five CANDELS fields. We divide this sample, using the integrated specific

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a75bef14c6760830e4d29812e78e2c0e
https://hal.science/hal-02307663

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The Isophotal Structure of Star-forming Galaxies at $0.5< z <1.8$ in CANDELS: Implications for the Evolution of Galaxy Structure

Autor: Dale D. Kocevski, Anton M. Koekemoer, Hassen M. Yesuf, Dongfei Jiang, Guillermo Barro, Lu Liu, Yicheng Guo, David C. Koo, Meng Jia, S. M. Faber, Xian-Min Meng, Weichen Wang, Elizabeth J. McGrath, Nimish P. Hathi, F. S. Liu, Wei Tong, Jerome J. Fang, Xianzhong Zheng

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2018, 854, ⟨10.3847/1538-4357/aaa5ad⟩

We have measured the radial profiles of isophotal ellipticity ($\varepsilon$) and disky/boxy parameter A$_4$ out to radii of about three times the semi-major axes for $\sim4,600$ star-forming galaxies (SFGs) at intermediate redshifts $0.51$. Moreover

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ed45a5c28381dec1417c4c9d9738f63
http://arxiv.org/abs/1802.07930

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The Origins of UV–optical Color Gradients in Star-forming Galaxies at z ∼ 2: Predominant Dust Gradients but Negligible sSFR Gradients

Autor: Jerome J. Fang, Yicheng Guo, Hassen M. Yesuf, F. S. Liu, Xianzhong Zheng, Shude Mao, Lu Liu, Wei Tong, Sandro Tacchella, Dongfei Jiang, S. M. Faber, Guillermo Barro, Weichen Wang, Xian-Min Meng, David C. Koo, Meng Jia

Publikováno v: The Astrophysical Journal. 844:L2

The rest-frame UV-optical (i.e., $NUV-B$) color is sensitive to both low-level recent star formation (specific star formation rate - sSFR) and dust. In this Letter, we extend our previous work on the origins of $NUV-B$ color gradients in star-forming

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74f21b8d599be4e109ca296d2fd424cd
https://doi.org/10.3847/2041-8213/aa7cf5

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THE UV–OPTICAL COLOR GRADIENTS IN STAR-FORMING GALAXIES AT 0.5 < z < 1.5: ORIGINS AND LINK TO GALAXY ASSEMBLY

Autor: S. M. Faber, Xianzhong Zheng, Dingpeng Li, Shude Mao, F. S. Liu, Weichen Wang, Hassen M. Yesuf, Dongfei Jiang, Guillermo Barro, Yicheng Guo, David C. Koo, Yao Li, Jerome J. Fang

Publikováno v: The Astrophysical Journal. 822:L25

The rest-frame UV-optical (i.e., NUV-B) color index is sensitive to the low-level recent star formation and dust extinction, but it is insensitive to the metallicity. In this Letter, we have measured the rest-frame NUV-B color gradients in ~1400 larg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::907bd885b911254ba6de91fcd4085add
https://doi.org/10.3847/2041-8205/822/2/l25

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