An ALMA [C II] Survey of 27 Quasars at z > 5.94

被引：201

作者：

Decarli, Roberto ^{[1
,2
]}

Walter, Fabian ^{[1
,3
,4
]}

Venemans, Bram P. ^{[1
]}

Banados, Eduardo ^{[5
]}

Bertoldi, Frank ^{[6
]}

Carilli, Chris ^{[4
,7
]}

Fan, Xiaohui ^{[8
]}

Farina, Emanuele Paolo ^{[1
]}

Mazzucchelli, Chiara ^{[1
]}

Riechers, Dominik ^{[9
]}

Rix, Hans-Walter ^{[1
]}

Strauss, Michael A. ^{[10
]}

Wang, Ran ^{[11
]}

Yang, Yujin ^{[12
]}

机构：

[1] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[2] INAF, Osservatorio Astrofis & Sci Spazio, Via Gobetti 93-3, I-40129 Bologna, Italy

[3] CALTECH, Dept Astron, MC249-17, Pasadena, CA 91125 USA

[4] Natl Radio Astron Observ, Pete V Domenici Array Sci Ctr, POB O, Socorro, NM 87801 USA

[5] Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA

[6] Univ Bonn, Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany

[7] Univ Cambridge, Battcock Ctr Expt Astrophys, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England

[8] Univ Arizona, Steward Observ, 933 N Cherry St, Tucson, AZ 85721 USA

[9] Cornell Univ, 220 Space Sci Bldg, Ithaca, NY 14853 USA

[10] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[11] Peking Univ, Kavli Inst Astron & Astrophys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China

[12] Korea Astron & Space Sci Inst, Daedeokdae Ro 776, Daejeon 34055, South Korea

来源：

ASTROPHYSICAL JOURNAL | 2018年 / 854卷 / 02期

基金：

美国国家科学基金会;

关键词：

galaxies: high-redshift; galaxies: ISM; quasars: emission lines; quasars: general; BLACK-HOLE MASS; SIMILAR-TO; 6; NEAR-INFRARED SPECTROSCOPY; STAR-FORMING GALAXIES; HOST GALAXIES; MOLECULAR GAS; SCALING RELATIONS; HIGH-REDSHIFT; MU-M; BULGE MASS;

D O I：

10.3847/1538-4357/aaa5aa

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a survey of the [C II] 158 mu m line and underlying far-infrared (FIR) dust continuum emission in a sample of 27 greater than or similar to 6 quasars using the Atacama Large Millimeter Array (ALMA) at similar to 1 '' resolution. The [C II] line was significantly detected (at > 5-sigma) in 23 sources (85%). We find typical line luminosities of L-[C (II]) = 10(9-10) L-circle dot, and an average line width of similar to 385 km s(-1). The [C II]-to-far-infrared luminosity ratios ([C II]/FIR) in our sources span one order of magnitude, highlighting a variety of conditions in the star-forming medium. Four quasar host galaxies are clearly resolved in their [C II] emission on a few kpc scales. Basic estimates of the dynamical masses of the host galaxies give masses between 2 x 10(10) and 2 x 10(11) M-circle dot, i.e., more than an order of magnitude below what is expected from local scaling relations, given the available limits on the masses of the central black holes (> 3 x 10(8) M-circle dot, assuming Eddington-limited accretion). In stacked ALMA [C II] spectra of individual sources in our sample, we find no evidence of a deviation from a single Gaussian profile. The quasar luminosity does not strongly correlate with either the [C II] luminosity or equivalent width. This survey (with typical on-source integration times of 8 minutes) showcases the unparalleled sensitivity of ALMA at millimeter wavelengths, and offers a unique reference sample for the study of the first massive galaxies in the universe.

引用

页数：19

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An ALMA [C II] Survey of 27 Quasars at z &gt; 5.94

An ALMA [C II] Survey of 27 Quasars at z > 5.94