Environmental dependence of the galaxy stellar mass function in the Dark Energy Survey Science Verification Data
Environmental dependence of the galaxy stellar mass function in the Dark Energy Survey Science Verification Data
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暗能量巡天科学验证数据中星系恒星质量函数的环境依赖性
DOI：
10.1093/mnras/stw3069
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发表时间：
2017
影响因子：
4.8
通讯作者：
Etherington J
中科院分区：
文献类型：
--
作者：
Etherington J
对星系恒星质量函数的测量对于理解宇宙中星系的形成至关重要。在一个等级星系团的范例中，星系的性质和它们所处的环境之间似乎存在某种联系。环境趋势的证据已经在当地宇宙中建立起来。暗能量调查(DES)提供了大量的光度数据集，使进一步研究质量集合成为可能。在这项研究中，我们使用了DES科学验证(SV)数据集中来自(南极望远镜)SPT-EAST场的320万个∼星系。从GRZY光度法，我们得到了星系恒星质量和绝对星等，并用蒙特卡罗模拟确定了这些性质的误差，使用的是全光度红移概率分布。我们在一定的尺度范围内使用固定的锥形光圈来计算星系环境。我们构造了星系环境概率分布函数，并研究了环境误差与口径参数的关系。我们计算了0.15<；z<；1.05红移范围内星系恒星质量函数的环境分量。对于z<；0.75，我们发现大质量星系的比例在高密度环境中比在低密度环境中要大。我们发现，低密度和高密度分量随着红移的增加而收敛到z∼1.0时，质量函数分量的形状是不可区分的。我们的研究展示了大质量星系周围的高密度结构是如何在宇宙时间里建立起来的。
Measurements of the galaxy stellar mass function are crucial to understand the formation of galaxies in the Universe. In a hierarchical clustering paradigm, it is plausible that there is a connection between the properties of galaxies and their environments. Evidence for environmental trends has been established in the local Universe. The Dark Energy Survey (DES) provides large photometric data sets that enable further investigation of the assembly of mass. In this study, we use ∼3.2 million galaxies from the (South Pole Telescope) SPT-East field in the DES science verification (SV) data set. From grizY photometry, we derive galaxy stellar masses and absolute magnitudes, and determine the errors on these properties using Monte Carlo simulations using the full photometric redshift probability distributions. We compute galaxy environments using a fixed conical aperture for a range of scales. We construct galaxy environment probability distribution functions and investigate the dependence of the environment errors on the aperture parameters. We compute the environment components of the galaxy stellar mass function for the redshift range 0.15 <z< 1.05. Forz< 0.75, we find that the fraction of massive galaxies is larger in high-density environment than in low-density environments. We show that the low-density and high-density components converge with increasing redshift up toz∼ 1.0 where the shapes of the mass function components are indistinguishable. Our study shows how high-density structures build up around massive galaxies through cosmic time.
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红外光度和恒星质量函数的环境依赖性
DOI：
--
发表时间：
2001
期刊：
影响因子：
--
作者：
M. Balogh;D. Christlein;A. Zabludoff;D. Zaritsky
通讯作者：
D. Zaritsky
大天文台起源深巡中高红移 QSO 的空间密度
DOI：
10.1086/378788
发表时间：
2003
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
S. Cristiani;D. Alexander;F. Bauer;W. Brandt;E. Chatzichristou;F. Fontanot;A. Grazian;A. Koekemoer;R. Lucas;P. Monaco;M. Nonino;P. Padovani;D. Stern;P. Tozzi;E. Treister;C. Urry;E. Vanzella
通讯作者：
E. Vanzella
影响因子：
4.8
作者：
M. Crocce;J. Carretero;A. Bauer;A. Ross;I. Sevilla-Noarbe;T. Giannantonio;F. Sobreira;J. Sánchez-J.-S
通讯作者：
M. Crocce;J. Carretero;A. Bauer;A. Ross;I. Sevilla-Noarbe;T. Giannantonio;F. Sobreira;J. Sánchez-J.-S
影响因子：
4.8
作者：
T. Giannantonio;P. Fosalba;R. Cawthon;Y. Omori;M. Crocce;F. Elsner;B. Leistedt;S. Dodelson;A. Benoit-Lévy;E. Gaztañaga;G. Holder;H. Peiris;W. Percival;D. Kirk;A. Bauer;B. Benson;G. Bernstein;J. Carretero;T. Crawford;R. Crittenden;D. Huterer;B. Jain;E. Krause;C. Reichardt;A. Ross;G. Simard;B. Soergel;A. Stark;K. Story;J. Vieira;J. Weller;T. Abbott;F. Abdalla;S. Allam;R. Armstrong;M. Banerji;R. Bernstein;E. Bertin;D. Brooks;E. Buckley-Geer;D. Burke;D. Capozzi;J. Carlstrom;A. Rosell;M. Kind;F. Castander;C. Chang;C. Cunha;L. Costa;C. D'Andrea;D. Depoy;S. Desai;H. Diehl;J. Dietrich;P. Doel;T. Eifler;A. Evrard;A. F. Neto;E. Fernandez;D. Finley;B. Flaugher;J. Frieman;D. Gerdes;D. Gruen;R. Gruendl;G. Gutiérrez;W. Holzapfel;K. Honscheid;D. James;K. Kuehn;N. Kuropatkin;O. Lahav;T. Li;M. Lima;M. March;J. Marshall;P. Martini;Peter Melchior;R. Miquel;J. Mohr;R. Nichol;B. Nord;R. Ogando;A. Plazas;A. Romer;A. Roodman;E. Rykoff;M. Sako;B. Saliwanchik;E. Sánchez;M. Schubnell;I. Sevilla-Noarbe;R. C. Smith;M. Soares-Santos;F. Sobreira;E. Suchyta;M. Swanson;G. Tarlé;J. Thaler;D. Thomas;V. Vikram;A. Walker;R. Wechsler;J. Zuntz
通讯作者：
T. Giannantonio;P. Fosalba;R. Cawthon;Y. Omori;M. Crocce;F. Elsner;B. Leistedt;S. Dodelson;A. Benoit-Lévy;E. Gaztañaga;G. Holder;H. Peiris;W. Percival;D. Kirk;A. Bauer;B. Benson;G. Bernstein;J. Carretero;T. Crawford;R. Crittenden;D. Huterer;B. Jain;E. Krause;C. Reichardt;A. Ross;G. Simard;B. Soergel;A. Stark;K. Story;J. Vieira;J. Weller;T. Abbott;F. Abdalla;S. Allam;R. Armstrong;M. Banerji;R. Bernstein;E. Bertin;D. Brooks;E. Buckley-Geer;D. Burke;D. Capozzi;J. Carlstrom;A. Rosell;M. Kind;F. Castander;C. Chang;C. Cunha;L. Costa;C. D'Andrea;D. Depoy;S. Desai;H. Diehl;J. Dietrich;P. Doel;T. Eifler;A. Evrard;A. F. Neto;E. Fernandez;D. Finley;B. Flaugher;J. Frieman;D. Gerdes;D. Gruen;R. Gruendl;G. Gutiérrez;W. Holzapfel;K. Honscheid;D. James;K. Kuehn;N. Kuropatkin;O. Lahav;T. Li;M. Lima;M. March;J. Marshall;P. Martini;Peter Melchior;R. Miquel;J. Mohr;R. Nichol;B. Nord;R. Ogando;A. Plazas;A. Romer;A. Roodman;E. Rykoff;M. Sako;B. Saliwanchik;E. Sánchez;M. Schubnell;I. Sevilla-Noarbe;R. C. Smith;M. Soares-Santos;F. Sobreira;E. Suchyta;M. Swanson;G. Tarlé;J. Thaler;D. Thomas;V. Vikram;A. Walker;R. Wechsler;J. Zuntz
星系团 c0337-2522 z=0.59 处的银河同类相食现象
DOI：
--
发表时间：
2003
期刊：
影响因子：
--
作者：
C. Nipoti;C. Nipoti;M. Stiavelli;L. Ciotti;T. Treu;P. Rosati
通讯作者：
P. Rosati