@techreport{garaldi_thesan_2021,
	title = {The {THESAN} project: properties of the intergalactic medium and its connection to {Reionization}-era galaxies},
	shorttitle = {The {THESAN} project},
	url = {https://ui.adsabs.harvard.edu/abs/2021arXiv211001628G},
	abstract = {The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly becoming the new frontier of extra-galactic astronomy. We investigate the IGM properties and their connection to galaxies at \$z{\textbackslash}geq5.5\$ under different assumptions for the ionizing photon escape and the nature of dark matter, employing our novel THESAN radiation-hydrodynamical simulation suite, designed to provide a comprehensive picture of the emergence of galaxies in a full reionization context. Our simulations have realistic `late' reionization histories, match available constraints on global IGM properties and reproduce the recently-observed rapid evolution of the mean free path of ionizing photons. We additionally examine high-z Lyman-\${\textbackslash}alpha\$ transmission. The optical depth evolution is consistent with data, and its distribution suggests an even-later reionization than simulated, although with a strong sensitivity to the source model. We show that the effects of these two unknowns can be disentangled by characterising the spectral shape and separation of Lyman-\${\textbackslash}alpha\$ transmission regions, opening up the possibility to observationally constrain both. For the first time in simulations, THESAN reproduces the modulation of the Lyman-\${\textbackslash}alpha\$ flux as a function of galaxy distance, demonstrating the power of coupling a realistic galaxy formation model with proper radiation-hydrodynamics. We find this feature to be extremely sensitive on the timing of reionization, while being relatively insensitive to the source model. Overall, THESAN produces a realistic IGM and galaxy population, providing a robust framework for future analysis of the high-z Universe.},
	urldate = {2021-10-08},
	author = {Garaldi, Enrico and Kannan, Rahul and Smith, Aaron and Springel, Volker and Pakmor, Rüdiger and Vogelsberger, Mark and Hernquist, Lars},
	month = oct,
	year = {2021},
	note = {Publication Title: arXiv e-prints
ADS Bibcode: 2021arXiv211001628G
Type: article},
	keywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics},
}

{"_id":"2FekkE5SmdZTTYydx","bibbaseid":"garaldi-kannan-smith-springel-pakmor-vogelsberger-hernquist-thethesanprojectpropertiesoftheintergalacticmediumanditsconnectiontoreionizationeragalaxies-2021","author_short":["Garaldi, E.","Kannan, R.","Smith, A.","Springel, V.","Pakmor, R.","Vogelsberger, M.","Hernquist, L."],"bibdata":{"bibtype":"techreport","type":"techreport","title":"The THESAN project: properties of the intergalactic medium and its connection to Reionization-era galaxies","shorttitle":"The THESAN project","url":"https://ui.adsabs.harvard.edu/abs/2021arXiv211001628G","abstract":"The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly becoming the new frontier of extra-galactic astronomy. We investigate the IGM properties and their connection to galaxies at \\$z{\\textbackslash}geq5.5\\$ under different assumptions for the ionizing photon escape and the nature of dark matter, employing our novel THESAN radiation-hydrodynamical simulation suite, designed to provide a comprehensive picture of the emergence of galaxies in a full reionization context. Our simulations have realistic `late' reionization histories, match available constraints on global IGM properties and reproduce the recently-observed rapid evolution of the mean free path of ionizing photons. We additionally examine high-z Lyman-\\${\\textbackslash}alpha\\$ transmission. The optical depth evolution is consistent with data, and its distribution suggests an even-later reionization than simulated, although with a strong sensitivity to the source model. We show that the effects of these two unknowns can be disentangled by characterising the spectral shape and separation of Lyman-\\${\\textbackslash}alpha\\$ transmission regions, opening up the possibility to observationally constrain both. For the first time in simulations, THESAN reproduces the modulation of the Lyman-\\${\\textbackslash}alpha\\$ flux as a function of galaxy distance, demonstrating the power of coupling a realistic galaxy formation model with proper radiation-hydrodynamics. We find this feature to be extremely sensitive on the timing of reionization, while being relatively insensitive to the source model. Overall, THESAN produces a realistic IGM and galaxy population, providing a robust framework for future analysis of the high-z Universe.","urldate":"2021-10-08","author":[{"propositions":[],"lastnames":["Garaldi"],"firstnames":["Enrico"],"suffixes":[]},{"propositions":[],"lastnames":["Kannan"],"firstnames":["Rahul"],"suffixes":[]},{"propositions":[],"lastnames":["Smith"],"firstnames":["Aaron"],"suffixes":[]},{"propositions":[],"lastnames":["Springel"],"firstnames":["Volker"],"suffixes":[]},{"propositions":[],"lastnames":["Pakmor"],"firstnames":["Rüdiger"],"suffixes":[]},{"propositions":[],"lastnames":["Vogelsberger"],"firstnames":["Mark"],"suffixes":[]},{"propositions":[],"lastnames":["Hernquist"],"firstnames":["Lars"],"suffixes":[]}],"month":"October","year":"2021","note":"Publication Title: arXiv e-prints ADS Bibcode: 2021arXiv211001628G Type: article","keywords":"Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics","bibtex":"@techreport{garaldi_thesan_2021,\n\ttitle = {The {THESAN} project: properties of the intergalactic medium and its connection to {Reionization}-era galaxies},\n\tshorttitle = {The {THESAN} project},\n\turl = {https://ui.adsabs.harvard.edu/abs/2021arXiv211001628G},\n\tabstract = {The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly becoming the new frontier of extra-galactic astronomy. We investigate the IGM properties and their connection to galaxies at \\$z{\\textbackslash}geq5.5\\$ under different assumptions for the ionizing photon escape and the nature of dark matter, employing our novel THESAN radiation-hydrodynamical simulation suite, designed to provide a comprehensive picture of the emergence of galaxies in a full reionization context. Our simulations have realistic `late' reionization histories, match available constraints on global IGM properties and reproduce the recently-observed rapid evolution of the mean free path of ionizing photons. We additionally examine high-z Lyman-\\${\\textbackslash}alpha\\$ transmission. The optical depth evolution is consistent with data, and its distribution suggests an even-later reionization than simulated, although with a strong sensitivity to the source model. We show that the effects of these two unknowns can be disentangled by characterising the spectral shape and separation of Lyman-\\${\\textbackslash}alpha\\$ transmission regions, opening up the possibility to observationally constrain both. For the first time in simulations, THESAN reproduces the modulation of the Lyman-\\${\\textbackslash}alpha\\$ flux as a function of galaxy distance, demonstrating the power of coupling a realistic galaxy formation model with proper radiation-hydrodynamics. We find this feature to be extremely sensitive on the timing of reionization, while being relatively insensitive to the source model. Overall, THESAN produces a realistic IGM and galaxy population, providing a robust framework for future analysis of the high-z Universe.},\n\turldate = {2021-10-08},\n\tauthor = {Garaldi, Enrico and Kannan, Rahul and Smith, Aaron and Springel, Volker and Pakmor, Rüdiger and Vogelsberger, Mark and Hernquist, Lars},\n\tmonth = oct,\n\tyear = {2021},\n\tnote = {Publication Title: arXiv e-prints\nADS Bibcode: 2021arXiv211001628G\nType: article},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics},\n}\n\n","author_short":["Garaldi, E.","Kannan, R.","Smith, A.","Springel, V.","Pakmor, R.","Vogelsberger, M.","Hernquist, L."],"key":"garaldi_thesan_2021","id":"garaldi_thesan_2021","bibbaseid":"garaldi-kannan-smith-springel-pakmor-vogelsberger-hernquist-thethesanprojectpropertiesoftheintergalacticmediumanditsconnectiontoreionizationeragalaxies-2021","role":"author","urls":{"Paper":"https://ui.adsabs.harvard.edu/abs/2021arXiv211001628G"},"keyword":["Astrophysics - Astrophysics of Galaxies","Astrophysics - Cosmology and Nongalactic Astrophysics"],"metadata":{"authorlinks":{}}},"bibtype":"techreport","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies","astrophysics - cosmology and nongalactic astrophysics"],"search_terms":["thesan","project","properties","intergalactic","medium","connection","reionization","era","galaxies","garaldi","kannan","smith","springel","pakmor","vogelsberger","hernquist"],"title":"The THESAN project: properties of the intergalactic medium and its connection to Reionization-era galaxies","year":2021}