The SAMI galaxy survey: exploring the gas-phase mass–metallicity relation

The SAMI galaxy survey: exploring the gas-phase mass–metallicity relation
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SAMI星系调查:探索气相质量-金属丰度关系

DOI:
10.1093/mnras/stz019
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发表时间:
2018
影响因子:
4.8
通讯作者:
C. Walcher
C. Walcher
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
S. Sánchez;J. Barrera;J. Barrera;C. López;S. Brough;J. Bryant;J. Bland;S. Croom;J. V. D. Sande;L. Cortese;M. Goodwin;J. Lawrence;Á. López;S. Sweet;M. Owers;S. Richards;C. Walcher

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我们使用从 SAMI 星系巡天观测到的大约 1000 个星系获得的积分场光谱数据,对恒星质量与气相金属丰度关系 (MZR) 进行了详细探索。 “这些空间分辨的光谱数据使我们能够确定不同校准器在相同物理尺度(R-eff)内的金属丰度。不同校准器之间的 MZ 关系的形状非常相似,但丰度的绝对值存在较大偏移。我们确认了我们之前使用 CALIFA 和 MaNGA 调查提供的空间分辨数据得出的结果:(1)基于对单个残差的分析,我们没有发现本研究中使用的任何校准器的 MZR 与恒星形成率(SFR)或特定 SFR(SFR/M.)有任何显着的次要关系; (2) 如果与恒星形成率存在依赖性,则它比报道的更弱(r(c)类似于-0.3),它仅限于低质量区域(M-* < 10(9) M-圆点)或高恒星形成率区域,并且不会对星系平均种群的描述产生任何显着的改进。与基于单纤维光谱数据的已发表结果的明显分歧可能是由于(i)对次要关系本身的解释; (ii) 目前的研究在低质量状态下采样的物体数量较少; (iii) 极端恒星形成星系的存在推动了先前结果中的次要关系。
We present a detailed exploration of the stellar mass versus gas-phase metallicity relation (MZR) using integral field spectroscopy data obtained from similar to 1000 galaxies observed by the SAMI galaxy survey. 'These spatially resolved spectroscopic data allow us to determine the metallicity within the same physical scale (R-eff) for different calibrators. The shape of the MZ relations is very similar between the different calibrators, while there are large offsets in the absolute values of the abundances. We confirm our previous results derived using the spatially resolved data provided by the CALIFA and MaNGA surveys: (1) we do not find any significant secondary relation of the MZR with either the star formation rate (SFR) or the specific SFR (SFR/M.) for any of the calibrators used in this study, based on the analysis of the individual residuals; (2) if there is a dependence with the SFR, it is weaker than the reported one (r(c)similar to -0.3), it is confined to the low-mass regime (M-* < 10(9) M-circle dot) or high-SFR regimes, and it does not produce any significant improvement in the description of the average population of galaxies. The aparent disagreement with published results based on single-fibre spectroscopic data could be due to (i) the interpretation of the secondary relation itself; (ii) the lower number of objects sampled at the low-mass regime by the current study; or (iii) the presence of extreme star-forming galaxies that drive the secondary relation in previous results.
DOI: 10.1051/0004-6361/201322062
发表时间: 2013-08
期刊: Proceedings of the International Astronomical Union
影响因子: --
作者:
R. Singh;G. Ven;K. Jahnke;M. Lyubenova;J. Falcón-Barroso;J. Falcón-Barroso;João Alves;R. C. Fernandes;L. Galbany;R. García-Benito;B. Husemann;R. Kennicutt;R. Marino;I. Márquez;J. Masegosa;D. Mast;A. Pasquali;Sebastián F. Sánchez;J. Walcher;Vivienne Wild;L. Wisotzki;B. Ziegler
通讯作者: R. Singh;G. Ven;K. Jahnke;M. Lyubenova;J. Falcón-Barroso;J. Falcón-Barroso;João Alves;R. C. Fernandes;L. Galbany;R. García-Benito;B. Husemann;R. Kennicutt;R. Marino;I. Márquez;J. Masegosa;D. Mast;A. Pasquali;Sebastián F. Sánchez;J. Walcher;Vivienne Wild;L. Wisotzki;B. Ziegler
DOI: 10.1088/2041-8205/764/1/l1
发表时间: 2012-12
期刊: The Astrophysical Journal Letters
影响因子: --
作者:
F. Muller-S'anchez;M. Prieto;M. Mezcua;R. Davies;M. Malkan;M. I. D. A. D. Canarias-M.-I.-D.-A.-D.-Canarias-102993718;U. L. Laguna
通讯作者: F. Muller-S'anchez;M. Prieto;M. Mezcua;R. Davies;M. Malkan;M. I. D. A. D. Canarias-M.-I.-D.-A.-D.-Canarias-102993718;U. L. Laguna
DOI: 10.1088/0004-637x/798/1/7
发表时间: 2015-01-01
影响因子: 4.9
作者:
Bundy, Kevin;Bershady, Matthew A.;Zhang, Kai
通讯作者: Zhang, Kai