Extragalactic science, cosmology, and Galactic archaeology with the Subaru Prime Focus Spectrograph

被引：496

作者：

Takada, Masahiro ^{[1
]}

Ellis, Richard S. ^{[2
]}

Chiba, Masashi ^{[3
]}

Greene, Jenny E. ^{[4
]}

Aihara, Hiroaki ^{[1
,5
]}

Arimoto, Nobuo ^{[6
]}

Bundy, Kevin ^{[1
]}

Cohen, Judith ^{[2
]}

Dore, Olivier ^{[2
,7
]}

Graves, Genevieve ^{[4
]}

Gunn, James E. ^{[4
]}

Heckman, Timothy ^{[8
]}

Hirata, Christopher M. ^{[2
]}

Ho, Paul ^{[9
]}

Kneib, Jean-Paul ^{[10
]}

Le Fevre, Olivier ^{[10
]}

Lin, Lihwai ^{[9
]}

More, Surhud ^{[1
]}

Murayama, Hitoshi ^{[1
,11
,12
]}

Nagao, Tohru ^{[13
]}

Ouchi, Masami ^{[14
]}

Seiffert, Michael ^{[7
]}

Silverman, John D. ^{[1
]}

Sodre, Laerte, Jr. ^{[15
]}

Spergel, David N. ^{[1
,4
]}

Strauss, Michael A. ^{[4
]}

Sugai, Hajime ^{[1
]}

Suto, Yasushi ^{[5
]}

Takami, Hideki ^{[6
]}

Wyse, Rosemary ^{[8
]}

机构：

[1] Univ Tokyo, Kavli Inst Phys & Math Universe, Kavli IPMU, WPI, Kashiwa, Chiba 2778583, Japan

[2] CALTECH, Pasadena, CA 91125 USA

[3] Tohoku Univ, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan

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

[5] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[6] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[7] CALTECH, Jet Prop Lab, Pasadena, CA 91011 USA

[8] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[9] Natl Taiwan Univ, Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan

[10] Lab Astrophys Marseille, Pole Etoile Site Chateau Gombert, F-13388 Marseille 13, France

[11] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[12] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[13] Kyoto Univ, Hakubi Ctr Adv Res, Sakyo Ku, Kyoto 6068501, Japan

[14] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[15] Inst Astron Geofis & Ciencias Atmosfer Sao Paulo, BR-05508090 Sao Paulo, Brazil

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2014年 / 66卷 / 01期

关键词：

cosmology: dark energy; cosmology: large-scale structure of Universe; galaxies: formation; galaxies: kinematics and dynamics; instrumentation: spectographs; BARYON ACOUSTIC-OSCILLATIONS; GALAXY REDSHIFT SURVEY; LYMAN BREAK GALAXIES; STAR-FORMATION HISTORIES; LY-ALPHA EMITTERS; MULTIELEMENT ABUNDANCE MEASUREMENTS; PROBING DARK ENERGY; DIGITAL SKY SURVEY; LUMINOSITY FUNCTIONS; ULTRAVIOLET-SPECTRA;

D O I：

10.1093/pasj/pst019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Subaru Prime Focus Spectrograph (PFS) is a massively multiplexed fiber-fed optical and near-infrared three-arm spectrograph (N-fiber = 2400, 380 <= lambda <= 1260 nm, 1 degrees.3 diameter field of view). Here, we summarize the science cases in terms of provisional plans for a 300-night Subaru survey. We describe plans to constrain the nature of dark energy via a survey of emission line galaxies spanning a comoving volume of 9.3 h(-3) Gpc(3) in the redshift range 0.8 < z < 2.4. In each of six redshift bins, the cosmological distances will be measured to 3% precision via the baryonic acoustic oscillation scale, and redshift-space distortion measures will constrain structure growth to 6% precision. In the near-field cosmology program, radial velocities and chemical abundances of stars in the Milky Way and M 31 will be used to infer the past assembly histories of spiral galaxies and the structure of their dark matter halos. Data will be secured for 10(6) stars in the Galactic thick-disk, halo, and tidal streams as faint as V similar to 22, including stars with V < 20 to complement the goals of the Gaia mission. A medium-resolution mode with R = 5000 to be implemented in the red arm will allow the measurement of multiple alpha-element abundances and more precise velocities for Galactic stars. For the galaxy evolution program, our simulations suggest the wide wavelength range of PFS will be powerful in probing the galaxy population and its clustering over a wide redshift range. We plan to conduct a color-selected survey of 1 < z < 2 galaxies and AGN over 16 deg(2) to J similar or equal to 23.4, yielding a fair sample of galaxies with stellar masses above similar to 10(10) M-circle dot at z similar or equal to 2. A two-tiered survey of higher redshift Lyman break galaxies and Lyman alpha emitters will quantify the properties of early systems close to the reionization epoch.

引用

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