Reionization and Cosmology with 21-cm Fluctuations

By Miguel F. Morales, J. Stuart B. Wyithe. 2009

372 citations recorded by the source corpus.

Measurement of the spatial distribution of neutral hydrogen via the redshifted 21-cm line promises to revolutionize our knowledge of the epoch of reionization and the first galaxies, and may provide a powerful new tool for observational cosmology from redshifts 1<z<4. In this review we discuss recent advances in our theoretical understanding of the epoch of reionization (EoR), the application of 21-cm tomography to cosmology and measurements of the dark energy equation of state after reionization, and the instrumentation and observational techniques shared by 21-cm EoR and postreionization cosmology machines. We place particular emphasis on the expected signal and observational capabilities of first generation 21-cm fluctuation instruments.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/59fc23fec7748c2e8ac70ae5dd3f052e1006b1a1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

21 cm cosmology in the 21st century (2011, background): “[4], which covers the near term prospects for detecting the 21 cm signal from reionization in some detail.”
ALL-SKY INTERFEROMETRY WITH SPHERICAL HARMONIC TRANSIT TELESCOPES (2013, background): “The foremost challenge for any 21 cm mapping experiment is separating the cosmological signal from astrophysical contaminants which are 103–105 times larger (Furlanetto et al. 2006; Morales & Wyithe 2010).”
WHAT NEXT-GENERATION 21 cm POWER SPECTRUM MEASUREMENTS CAN TEACH US ABOUT THE EPOCH OF REIONIZATION (2013, background): “Given the difficulties of optical/NIR observing at these redshifts, the highly-redshifted 21 cm line of neutral hydrogen has been recognized as a unique probe of the conditions during the EoR (see Morales & Wyithe 2010 and Pritchard & Loeb 2012 for recent reviews discussing this technique).”
Inferring the astrophysics of reionization and cosmic dawn from galaxy luminosity functions and the 21-cm signal (2018, background): “…† andrei.mesinger@sns.it (AM) it a revolutionary probe of the early Universe (e.g. Hogan & Rees 1979; Scott & Rees 1990; Gnedin & Ostriker 1997; Madau et al. 1997; Shaver et al. 1999; Tozzi et al. 2000; Gnedin & Shaver 2004; Furlanetto et al. 2006; Morales & Wyithe 2010; Pritchard & Loeb 2012).”
OPENING THE 21 cm EPOCH OF REIONIZATION WINDOW: MEASUREMENTS OF FOREGROUND ISOLATION WITH PAPER (2013, background): “…promising probes of the high redshift universe, with potential to map out volumes extending from redshift ∼ 1 through the Epoch of Reionization (EoR) to the dark ages at redshift 20 and beyond (for reviews of the field, see Furlanetto et al. 2006, Morales & Wyithe 2010, and Pritchard & Loeb 2012).”
The GMRT Epoch of Reionization experiment: a new upper limit on the neutral hydrogen power spectrum at z≈ 8.6 (2010, background): “For a review see Morales & Wyithe (2010) and references therein.”
A PER-BASELINE, DELAY-SPECTRUM TECHNIQUE FOR ACCESSING THE 21 cm COSMIC REIONIZATION SIGNATURE (2012, background): “…as a result of the growing sophistication of numerical and semi-analytic models of how ultraviolet and x-ray sources feed ionization fronts in the intergalactic medium (Furlanetto et al. 2006; Wyithe & Loeb 2004; Santos et al. 2010; Mesinger 2010; Morales & Wyithe 2010; Zahn et al. 2011).”
FIRST SEASON MWA EOR POWER SPECTRUM RESULTS AT REDSHIFT 7 (2016, methodology): “(For reviews, see Furlanetto et al. 2006, Morales & Wyithe 2010, Zaroubi 2013, Loeb & Furlanetto 2013, and Pritchard & Loeb 2012) The first generation of instruments with primary science goals to detect the highly redshift 21cm signal have been built, including the GMRT (Giant Metrewave Radio…”
GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey - I. A low-frequency extragalactic catalogue (2016, background): “…has also seen the construction of new radio telescopes, the primary science driver of which is measuring the emission from high-redshift neutral hydrogen during the Epoch of Reionisation (EoR), predicted to lie between 50 and 200 MHz (e.g. Furlanetto, Oh & Briggs 2006; Morales & Wyithe 2010).”
Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars (2014, background): “…estimates of mass-loss rates and their scaling with metallicity can profoundly impact topics as remote as reionization of the universe and the interpretation of spectra from galaxies at the highest redshifts currently being detected (Fan et al. 2006, Loeb & Barkana 2001, Morales & Wyithe 2010).”
Stellar black holes at the dawn of the universe (2011, background): “One of the present challenges in observational astronomy is to directly observe this 21 cm signal from neutral hydrogen in the young Universe (Morales & Wyithe 2010).”
Upper Limits on the 21 cm Epoch of Reionization Power Spectrum from One Night with LOFAR (2017, background): “…influence the formation of subsequent generations of stars, the interstellar medium (ISM), intergalactic medium (IGM) and black holes; see e.g. Furlanetto et al. (2006); Morales & Wyithe (2010); Pritchard & Loeb (2012); Natarajan & Yoshida (2014); McQuinn (2015) for extensive reviews of the EoR.”
PAPER-64 CONSTRAINTS ON REIONIZATION: THE 21 cm POWER SPECTRUM AT z = 8.4 (2015, background): “This signal has been recognized as a potentially powerful probe of the cosmic dawn (Furlanetto et al. 2006; Morales & Wyithe 2010; Pritchard & Loeb 2012) that can reveal large-scale fluctuations in the ionization state and temperature of the IGM, opening a unique window into the complex…”
Enhanced Global Signal of Neutral Hydrogen Due to Excess Radiation at Cosmic Dawn (2018, background): “The 21 cm spatial fluctuations have been extensively studied theoretically (Furlanetto et al. 2004; Morales & Wyithe 2010), but this faint signal is yet to be detected, largely due to very bright foreground contaminants, such as Galactic synchrotron, supernovae remnants, free-free emission and…”
Lyα Emitting Galaxies as a Probe of Reionisation (2014, methodology): “For reviews on the Epoch of Reionisation (EoR) we refer the reader to e.g. Barkana & Loeb (2001), Furlanetto, Oh, & Briggs (2006), and Morales & Wyithe (2010).”
21CMMC: an MCMC analysis tool enabling astrophysical parameter studies of the cosmic 21 cm signal (2015, background): “At the forefront of these will be the detection of the redshifted 21 cm spin-flip transition of neutral hydrogen (see e.g. Furlanetto et al. 2006b; Morales & Wyithe 2010; Pritchard & Loeb 2012) from several dedicated radio interferometers.”