@article{geil_dark_2017,
	title = {Dark ages reionization \& galaxy formation simulation {XII}: {Bubbles} at dawn},
	volume = {1704},
	shorttitle = {Dark ages reionization \& galaxy formation simulation {XII}},
	url = {http://adsabs.harvard.edu/abs/2017arXiv170405175G},
	abstract = {Direct detection of regions of ionized hydrogen (HII) has been suggested as a promising probe of cosmic reionization. Observing the redshifted 21-cm signal of hydrogen from the epoch of reionization (EoR) is a key scientific driver behind new-generation, low-frequency radio
interferometers. We investigate the feasibility of combining
low-frequency observations with the Square Kilometre Array and near infra-red survey data of the Wide-Field Infrared Survey Telescope to detect cosmic reionization by imaging HII bubbles surrounding massive galaxies during the cosmic dawn. While individual bubbles will be too small to be detected, we find that by stacking redshifted 21-cm spectra centred on known galaxies, it will be possible to directly detect the EoR at \$z {\textbackslash}sim 9-12\$, and to place qualitative constraints on the evolution of the spin temperature of the intergalactic medium (IGM) at \$z {\textbackslash}geq 9\$. In particular, given a detection of ionized bubbles using this technique, it is possible to determine if the IGM surrounding them is typically in absorption or emission. Determining the
globally-averaged neutral fraction of the IGM using this method will prove more difficult due to degeneracy with the average size of HII regions.},
	urldate = {2017-04-25},
	journal = {ArXiv e-prints},
	author = {Geil, Paul M. and Mutch, Simon J. and Poole, Gregory B. and Duffy, Alan R. and Mesinger, Andrei and Wyithe, J. Stuart B.},
	month = apr,
	year = {2017},
	keywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics},
	pages = {arXiv:1704.05175},
}

{"_id":"mQxw2gkLquaSBSBdA","bibbaseid":"geil-mutch-poole-duffy-mesinger-wyithe-darkagesreionizationgalaxyformationsimulationxiibubblesatdawn-2017","author_short":["Geil, P. M.","Mutch, S. J.","Poole, G. B.","Duffy, A. R.","Mesinger, A.","Wyithe, J. S. B."],"bibdata":{"bibtype":"article","type":"article","title":"Dark ages reionization & galaxy formation simulation XII: Bubbles at dawn","volume":"1704","shorttitle":"Dark ages reionization & galaxy formation simulation XII","url":"http://adsabs.harvard.edu/abs/2017arXiv170405175G","abstract":"Direct detection of regions of ionized hydrogen (HII) has been suggested as a promising probe of cosmic reionization. Observing the redshifted 21-cm signal of hydrogen from the epoch of reionization (EoR) is a key scientific driver behind new-generation, low-frequency radio interferometers. We investigate the feasibility of combining low-frequency observations with the Square Kilometre Array and near infra-red survey data of the Wide-Field Infrared Survey Telescope to detect cosmic reionization by imaging HII bubbles surrounding massive galaxies during the cosmic dawn. While individual bubbles will be too small to be detected, we find that by stacking redshifted 21-cm spectra centred on known galaxies, it will be possible to directly detect the EoR at \\$z {\\textbackslash}sim 9-12\\$, and to place qualitative constraints on the evolution of the spin temperature of the intergalactic medium (IGM) at \\$z {\\textbackslash}geq 9\\$. In particular, given a detection of ionized bubbles using this technique, it is possible to determine if the IGM surrounding them is typically in absorption or emission. Determining the globally-averaged neutral fraction of the IGM using this method will prove more difficult due to degeneracy with the average size of HII regions.","urldate":"2017-04-25","journal":"ArXiv e-prints","author":[{"propositions":[],"lastnames":["Geil"],"firstnames":["Paul","M."],"suffixes":[]},{"propositions":[],"lastnames":["Mutch"],"firstnames":["Simon","J."],"suffixes":[]},{"propositions":[],"lastnames":["Poole"],"firstnames":["Gregory","B."],"suffixes":[]},{"propositions":[],"lastnames":["Duffy"],"firstnames":["Alan","R."],"suffixes":[]},{"propositions":[],"lastnames":["Mesinger"],"firstnames":["Andrei"],"suffixes":[]},{"propositions":[],"lastnames":["Wyithe"],"firstnames":["J.","Stuart","B."],"suffixes":[]}],"month":"April","year":"2017","keywords":"Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics","pages":"arXiv:1704.05175","bibtex":"@article{geil_dark_2017,\n\ttitle = {Dark ages reionization \\& galaxy formation simulation {XII}: {Bubbles} at dawn},\n\tvolume = {1704},\n\tshorttitle = {Dark ages reionization \\& galaxy formation simulation {XII}},\n\turl = {http://adsabs.harvard.edu/abs/2017arXiv170405175G},\n\tabstract = {Direct detection of regions of ionized hydrogen (HII) has been suggested as a promising probe of cosmic reionization. Observing the redshifted 21-cm signal of hydrogen from the epoch of reionization (EoR) is a key scientific driver behind new-generation, low-frequency radio\ninterferometers. We investigate the feasibility of combining\nlow-frequency observations with the Square Kilometre Array and near infra-red survey data of the Wide-Field Infrared Survey Telescope to detect cosmic reionization by imaging HII bubbles surrounding massive galaxies during the cosmic dawn. While individual bubbles will be too small to be detected, we find that by stacking redshifted 21-cm spectra centred on known galaxies, it will be possible to directly detect the EoR at \\$z {\\textbackslash}sim 9-12\\$, and to place qualitative constraints on the evolution of the spin temperature of the intergalactic medium (IGM) at \\$z {\\textbackslash}geq 9\\$. In particular, given a detection of ionized bubbles using this technique, it is possible to determine if the IGM surrounding them is typically in absorption or emission. Determining the\nglobally-averaged neutral fraction of the IGM using this method will prove more difficult due to degeneracy with the average size of HII regions.},\n\turldate = {2017-04-25},\n\tjournal = {ArXiv e-prints},\n\tauthor = {Geil, Paul M. and Mutch, Simon J. and Poole, Gregory B. and Duffy, Alan R. and Mesinger, Andrei and Wyithe, J. Stuart B.},\n\tmonth = apr,\n\tyear = {2017},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics},\n\tpages = {arXiv:1704.05175},\n}\n\n","author_short":["Geil, P. M.","Mutch, S. J.","Poole, G. B.","Duffy, A. R.","Mesinger, A.","Wyithe, J. S. B."],"key":"geil_dark_2017","id":"geil_dark_2017","bibbaseid":"geil-mutch-poole-duffy-mesinger-wyithe-darkagesreionizationgalaxyformationsimulationxiibubblesatdawn-2017","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2017arXiv170405175G"},"keyword":["Astrophysics - Astrophysics of Galaxies","Astrophysics - Cosmology and Nongalactic Astrophysics"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies","astrophysics - cosmology and nongalactic astrophysics"],"search_terms":["dark","ages","reionization","galaxy","formation","simulation","xii","bubbles","dawn","geil","mutch","poole","duffy","mesinger","wyithe"],"title":"Dark ages reionization & galaxy formation simulation XII: Bubbles at dawn","year":2017}