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FirstDawn SIGNED

Imaging the cosmic dawn and the first galaxies with 21cm and atomic line intensity mapping

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EC-Contrib. €

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Project "FirstDawn" data sheet

The following table provides information about the project.

Coordinator
IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE 

Organization address
address: SOUTH KENSINGTON CAMPUS EXHIBITION ROAD
city: LONDON
postcode: SW7 2AZ
website: http://www.imperial.ac.uk/

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website http://pritchardjr.github.io
 Total cost 1˙495˙220 €
 EC max contribution 1˙495˙220 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-04-01   to  2020-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE UK (LONDON) coordinator 1˙495˙220.00

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 Project objective

'Modern astrophysics has pushed the observational frontier to a time a billion years after the Big Bang. Lying beyond this frontier is the period when the first stars and galaxies formed, whose light heated and ionized the Universe in the process known as reionization. Understanding this 'epoch of reionization' would fill in a key missing period in our picture of the history of the Universe. Existing observational techniques have scratched the surface, but new observational techniques are required to truly understand this early period of galaxy formation. My work will lay the theoretical foundations for three novel probes of this period - 21 cm tomography, the 21 cm global signal, and line intensity mapping - that would enable three dimensional maps of the epoch of reionization. If realized through challenging radio-frequency observations, these techniques would transform our understanding of the first galaxies.

Through this ERC starting grant, I will build the theoretical framework needed to predict and interpret observations of line emission from gas in and surrounding the first generation of galaxies. My team will aim to develop models of the interplay between radiation from the first galaxies and the heating, ionization, and illumination of hydrogen gas that lies in the space between galaxies. At the same time, we will build models of the formation and properties of the atomic and molecular gas that fills the space inside galaxies. By combining probes of this 'inner' and 'outer' space a complete nature of galaxy formation during the first billion years might be achieved. Analysis of sky averaged 21 cm observations will complement this with a broad overview of galaxies back to a few hundred million years after the big bang. This work will provide a clear theoretical road map to guide the design of next generation radio telescopes, such as the Square Kilometer Array, to achieve this ambitious goal.'

 Publications

year authors and title journal last update
List of publications.
2018 Suman Majumdar, Jonathan R Pritchard, Rajesh Mondal, Catherine A Watkinson, Somnath Bharadwaj, Garrelt Mellema
Quantifying the non-Gaussianity in the EoR 21-cm signal through bispectrum
published pages: 4007-4024, ISSN: 0035-8711, DOI: 10.1093/mnras/sty535
Monthly Notices of the Royal Astronomical Society 476/3 2019-05-14
2016 Adrian Liu, Jonathan R. Pritchard, Rupert Allison, Aaron R. Parsons, Uroš Seljak, Blake D. Sherwin
Eliminating the optical depth nuisance from the CMB with 21 cm cosmology
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.93.043013
Physical Review D 93/4 2019-04-18
2017 Catherine A. Watkinson, Suman Majumdar, Jonathan R. Pritchard, Rajesh Mondal
A fast estimator for the bispectrum and beyond – a practical method for measuring non-Gaussianity in 21-cm maps
published pages: 2436-2446, ISSN: 0035-8711, DOI: 10.1093/mnras/stx2130
Monthly Notices of the Royal Astronomical Society 472/2 2019-04-18
2017 Koki Kakiichi, Suman Majumdar, Garrelt Mellema, Benedetta Ciardi, Keri L. Dixon, Ilian T. Iliev, Vibor Jelić, Léon V. E. Koopmans, Saleem Zaroubi, Philipp Busch
Recovering the H ii region size statistics from 21-cm tomography
published pages: 1936-1954, ISSN: 0035-8711, DOI: 10.1093/mnras/stx1568
Monthly Notices of the Royal Astronomical Society 471/2 2019-04-18
2016 Kanan K. Datta, Raghunath Ghara, Suman Majumdar, T. Roy Choudhury, Somnath Bharadwaj, Himadri Roy, Abhirup Datta
Probing Individual Sources during Reionization and Cosmic Dawn using Square Kilometre Array HI 21-cm Observations
published pages: , ISSN: 0250-6335, DOI: 10.1007/s12036-016-9405-x
Journal of Astrophysics and Astronomy 37/4 2019-04-18
2017 Jack O. Burns, Richard Bradley, Keith Tauscher, Steven Furlanetto, Jordan Mirocha, Raul Monsalve, David Rapetti, William Purcell, David Newell, David Draper, Robert MacDowall, Judd Bowman, Bang Nhan, Edward J. Wollack, Anastasia Fialkov, Dayton Jones, Justin C. Kasper, Abraham Loeb, Abhirup Datta, Jonathan Pritchard, Eric Switzer, Michael Bicay
A Space-based Observational Strategy for Characterizing the First Stars and Galaxies Using the Redshifted 21 cm Global Spectrum
published pages: 33, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aa77f4
The Astrophysical Journal 844/1 2019-04-18
2016 Rajesh Mondal, Somnath Bharadwaj, Suman Majumdar
Statistics of the epoch of reionization (EoR) 21-cm signal – II. The evolution of the power-spectrum error-covariance
published pages: 2992-3004, ISSN: 0035-8711, DOI: 10.1093/mnras/stw2599
Monthly Notices of the Royal Astronomical Society 464/3 2019-04-18
2016 T. Roy Choudhury, Kanan Datta, Suman Majumdar, Raghunath Ghara, Aseem Paranjape, Rajesh Mondal, Somnath Bharadwaj, Saumyadip Samui
Modelling the 21-cm Signal from the Epoch of Reionization and Cosmic Dawn
published pages: , ISSN: 0250-6335, DOI: 10.1007/s12036-016-9403-z
Journal of Astrophysics and Astronomy 37/4 2019-04-18
2016 Suman Majumdar, Kanan K. Datta, Raghunath Ghara, Rajesh Mondal, T. Roy Choudhury, Somnath Bharadwaj, Sk. Saiyad Ali, Abhirup Datta
Line-of-Sight Anisotropies in the Cosmic Dawn and Epoch of Reionization 21-cm Power Spectrum
published pages: , ISSN: 0250-6335, DOI: 10.1007/s12036-016-9402-0
Journal of Astrophysics and Astronomy 37/4 2019-04-18
2017 A. H. Patil, S. Yatawatta, L. V. E. Koopmans, A. G. de Bruyn, M. A. Brentjens, S. Zaroubi, K. M. B. Asad, M. Hatef, V. Jelić, M. Mevius, A. R. Offringa, V. N. Pandey, H. Vedantham, F. B. Abdalla, W. N. Brouw, E. Chapman, B. Ciardi, B. K. Gehlot, A. Ghosh, G. Harker, I. T. Iliev, K. Kakiichi, S. Majumdar, G. Mellema, M. B. Silva, J. Schaye, D. Vrbanec, S. J. Wijnholds
Upper Limits on the 21 cm Epoch of Reionization Power Spectrum from One Night with LOFAR
published pages: 65, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aa63e7
The Astrophysical Journal 838/1 2019-04-18
2018 Raghunath Ghara, Garrelt Mellema, Sambit K Giri, T Roy Choudhury, Kanan K Datta, Suman Majumdar
Prediction of the 21-cm signal from reionization: comparison between 3D and 1D radiative transfer schemes
published pages: 1741-1755, ISSN: 0035-8711, DOI: 10.1093/mnras/sty314
Monthly Notices of the Royal Astronomical Society 476/2 2019-04-18
2017 C J Schmit, J R Pritchard
Emulation of reionization simulations for Bayesian inference of astrophysics parameters using neural networks
published pages: 1213-1223, ISSN: 0035-8711, DOI: 10.1093/mnras/stx3292
Monthly Notices of the Royal Astronomical Society 475/1 2019-04-18
2015 Geraint J. A. Harker, Jordan Mirocha, Jack O. Burns, Jonathan R. Pritchard
Parametrizations of the 21-cm global signal and parameter estimation from single-dipole experiments
published pages: 3829-3840, ISSN: 0035-8711, DOI: 10.1093/mnras/stv2630
Monthly Notices of the Royal Astronomical Society 455/4 2019-04-18
2018 Catherine A Watkinson, Sambit K Giri, Hannah E Ross, Keri L Dixon, Ilian T Iliev, Garrelt Mellema, Jonathan R Pritchard
The 21-cm bispectrum as a probe of non-Gaussianities due to X-ray heating
published pages: 2653-2669, ISSN: 0035-8711, DOI: 10.1093/mnras/sty2740
Monthly Notices of the Royal Astronomical Society 482/2 2019-04-18
2015 Suman Majumdar, Hannes Jensen, Garrelt Mellema, Emma Chapman, Filipe B. Abdalla, Kai-Yan Lee, Ilian T. Iliev, Keri L. Dixon, Kanan K. Datta, Benedetta Ciardi, Elizabeth R. Fernandez, Vibor Jelić, Léon V. E. Koopmans, Saleem Zaroubi
Effects of the sources of reionization on 21-cm redshift-space distortions
published pages: 2080-2094, ISSN: 0035-8711, DOI: 10.1093/mnras/stv2812
Monthly Notices of the Royal Astronomical Society 456/2 2019-04-18

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