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| 題名: | The Pan-STARRS1 medium-deep survey: The role of galaxy group environment in the star formation rate versus stellar mass relation and quiescent fraction out to z ~ 0.8 |
| 作者: | 陳文屏;Lin, Lihwai;Jian, Hung-Yu;Foucaud, Sebastien;Norberg, Peder;Bower, R. G.;Cole, Shaun;Arnalte-Mur, Pablo;Chen, Chin-Wei;Coupon, Jean;Hsieh, Bau-Ching;Heinis, Sebastien;Phleps, Stefanie;Chen, Wen-Ping;Lee, Chien-Hsiu;Burgett, William;Chambers, K. C.;Denneau, L.;Draper, P.;Flewelling, H.;Hodapp, K. W.;Huber, M. E.;Kaiser, N.;Kudritzki, R.-P.;Magnier, E. A.;Metcalfe, N.;Price, Paul A.;Tonry, J. L.;Wainscoat, R. J.;Waters, C. |
| 貢獻者: | 理學院天文研究所 |
| 關鍵詞: | AMPLITUDES;ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;DENSITY;EFFICIENCY;EVOLUTION;GALAXIES;MASS;QUENCHING;RED SHIFT;REDUCTION;Slopes;Star formation;Star formation rate;STARS;Stellar mass;UNIVERSE |
| 日期: | 2014-02-10 |
| 上傳時間: | 2026-04-21 14:25:56 (UTC+8) |
| 出版者: | IOP Publishing Ltd.;United States |
| 摘要: | 摘要： Using a large optically selected sample of field and group galaxies drawn from the Pan-STARRS1 Medium-Deep Survey (PS1/MDS), we present a detailed analysis of the specific star formation rate (SSFR)-stellar mass (M sub(*)) relation, as well as the quiescent fraction versus M sub(*) relation in different environments. Using this large galaxy sample, we confirm that the fraction of quiescent galaxies is strongly dependent on environment at a fixed stellar mass, but that the amplitude and the slope of the star-forming sequence is similar between the field and groups: in other words, the SSFR-density relation at a fixed stellar mass is primarily driven by the change in the star-forming and quiescent fractions between different environments rather than a global suppression in the star formation rate for the star-forming population.
出版者： United States
出版日期： 2014-02-10
出處： The Astrophysical journal, 2014-02, Vol.782 (1), p.33-16
資源來源： Institute of Physics Journals
識別號： ISSN: 0004-637X
識別號： EISSN: 1538-4357
識別號： DOI: 10.1088/0004-637X/782/1/33 |
| 顯示於類別: | [天文研究所] 期刊論文
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