The Frontier of Reionization: Theory and Forthcoming Observations

被引:2
作者
Loeb, Abraham [1 ]
机构
[1] Harvard Univ, CfA, Cambridge, MA 02138 USA
来源
ASTROPHYSICS IN THE NEXT DECADE: THE JAMES WEBB SPACE TELESCOPE AND CONCURRENT FACILITIES | 2009年
关键词
LY-ALPHA EMITTERS; BARYONIC ACOUSTIC-OSCILLATIONS; 21 CENTIMETER TOMOGRAPHY; PROBING DARK ENERGY; GAMMA-RAY BURSTS; HIGH-REDSHIFT; INTERGALACTIC MEDIUM; COSMIC REIONIZATION; INTERSTELLAR-MEDIUM; GALAXY FORMATION;
D O I
10.1007/978-1-4020-9457-6_18
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The cosmic microwave background provides an image of the Universe 0.4 million years after the Big Bang, when atomic hydrogen formed out of free electrons and protons. One of the primary goals of observational cosmology is to obtain follow-up images of the Universe during the epoch of reionization, hundreds of millions of years later, when cosmic hydrogen was ionized once again by the UV photons emitted from the first galaxies. To achieve this goal, new observatories are being constructed, including low-frequency radio arrays capable of mapping cosmic hydrogen through its redshifted 21 cm emission, as well as imagers of the first galaxies such as the James Webb Space Telescope (JWST) and large aperture ground-based telescopes. The construction of these observatories is being motivated by a rapidly growing body of theoretical work. Numerical simulations of reionization are starting to achieve the dynamical range required to resolve galactic sources across the scale of hundreds of comoving Mpc, larger than the biggest ionized regions.
引用
收藏
页码:481 / 509
页数:29
相关论文
共 112 条
[1]   The formation of the first star in the universe [J].
Abel, T ;
Bryan, GL ;
Norman, ML .
SCIENCE, 2002, 295 (5552) :93-98
[2]   SPIN CHANGE IN COLLISIONS OF HYDROGEN ATOMS [J].
ALLISON, AC ;
DALGARNO, A .
ASTROPHYSICAL JOURNAL, 1969, 158 (1P1) :423-&
[3]  
ANGULO R, 2007, ARXIVASTROPH0702543
[4]   THEORETICAL MODELS OF PHOTOIONIZED INTERGALACTIC HYDROGEN [J].
ARONS, J ;
WINGERT, DW .
ASTROPHYSICAL JOURNAL, 1972, 177 (01) :1-&
[5]   Detecting the earliest galaxies through two new sources of 21 centimeter fluctuations [J].
Barkana, R ;
Loeb, A .
ASTROPHYSICAL JOURNAL, 2005, 626 (01) :1-11
[6]   Probing the epoch of early baryonic infall through 21-cm fluctuations [J].
Barkana, R. ;
Loeb, A. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 363 (01) :L36-L40
[7]   Unusually large fluctuations in the statistics of galaxy formation at high redshift [J].
Barkana, R ;
Loeb, A .
ASTROPHYSICAL JOURNAL, 2004, 609 (02) :474-481
[8]   Gamma-ray bursts versus quasars:: Lyα signatures of reionization versus cosmological infall [J].
Barkana, R ;
Loeb, A .
ASTROPHYSICAL JOURNAL, 2004, 601 (01) :64-77
[9]   Four-year COBE DMR cosmic microwave background observations: Maps and basic results [J].
Bennett, CL ;
Banday, AJ ;
Gorski, KM ;
Hinshaw, G ;
Jackson, P ;
Keegstra, P ;
Kogut, A ;
Smoot, GF ;
Wilkinson, DT ;
Wright, EL .
ASTROPHYSICAL JOURNAL, 1996, 464 (01) :L1-&
[10]   Effects of cold dark matter decoupling and pair annihilation on cosmological perturbations [J].
Bertschinger, Edmund .
PHYSICAL REVIEW D, 2006, 74 (06)