{"publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"file":[{"file_name":"2025_AstrophysicalJour_Banerjee.pdf","file_size":1194131,"creator":"dernst","date_created":"2025-03-10T11:54:52Z","file_id":"19379","date_updated":"2025-03-10T11:54:52Z","checksum":"1d33a8eb59f42a0c7a943c8859e9b883","access_level":"open_access","success":1,"relation":"main_file","content_type":"application/pdf"}],"abstract":[{"lang":"eng","text":"We present a comprehensive analysis of H i absorption around 96 Lyα emitters (LAEs) at z ≈ 3.3 (median Lyα luminosity ≈1042 erg s−1). These LAEs were identified within eight MUSE fields, each (math. formular) on the sky and centered on a bright background quasar, as part of the MUSEQuBES survey. Using Voigt profile fitting for all H i absorbers detected within ±​​​​​​500 km s−1 of these LAEs, we compiled a catalog of 800 H i absorption components. Our analysis shows that H i absorption is enhanced near the LAEs compared to the intergalactic medium. However, no trend is found between the column densities of H i absorbers and their impact parameters from the LAEs (spanning ​​​​​​≈54–260 pkpc). Additionally, all galaxies associated with Lyman-limit systems have impact parameters >50 pkpc from the quasar sightlines, suggesting that true absorber hosts may be too faint to detect. The LAEs show an overall H i covering fraction (fc(H i)) of ≈88% for a threshold (math. formular) (H i) = 15. Notably, at the same threshold, the LAEs in pairs/groups exhibit a 100% H i covering fraction out to ≈250 pkpc. In contrast, isolated LAEs consistently show a lower fc(H i) of ≈80%. This environmental influence on fc(H i) is also evident up to ≈300 km s−1 in differential bins of line-of-sight velocity. We find an anticorrelation between fc(H i) and the equivalent width of rest-frame Lyα emission (EW0). Based on the Lyα shell model, this could imply that gas-rich galaxies tend to reside in gas-rich environments or that the LAEs with higher EW0 are more efficient at ionizing their surrounding medium."}],"file_date_updated":"2025-03-10T11:54:52Z","department":[{"_id":"JoMa"}],"article_type":"original","citation":{"short":"E. Banerjee, S. Muzahid, J. Schaye, J. Blaizot, N. Bouché, S. Cantalupo, S.D. Johnson, J.J. Matthee, A. Verhamme, Astrophysical Journal 980 (2025).","ama":"Banerjee E, Muzahid S, Schaye J, et al. MUSEQuBES: Connecting H i Absorption with Lyα emitters at z ≈ 3.3. <i>Astrophysical Journal</i>. 2025;980(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ada7e9\">10.3847/1538-4357/ada7e9</a>","chicago":"Banerjee, Eshita, Sowgat Muzahid, Joop Schaye, Jérémy Blaizot, Nicolas Bouché, Sebastiano Cantalupo, Sean D. Johnson, Jorryt J Matthee, and Anne Verhamme. “MUSEQuBES: Connecting H i Absorption with Lyα Emitters at z ≈ 3.3.” <i>Astrophysical Journal</i>. IOP Publishing, 2025. <a href=\"https://doi.org/10.3847/1538-4357/ada7e9\">https://doi.org/10.3847/1538-4357/ada7e9</a>.","ieee":"E. Banerjee <i>et al.</i>, “MUSEQuBES: Connecting H i Absorption with Lyα emitters at z ≈ 3.3,” <i>Astrophysical Journal</i>, vol. 980, no. 2. IOP Publishing, 2025.","apa":"Banerjee, E., Muzahid, S., Schaye, J., Blaizot, J., Bouché, N., Cantalupo, S., … Verhamme, A. (2025). MUSEQuBES: Connecting H i Absorption with Lyα emitters at z ≈ 3.3. <i>Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.3847/1538-4357/ada7e9\">https://doi.org/10.3847/1538-4357/ada7e9</a>","mla":"Banerjee, Eshita, et al. “MUSEQuBES: Connecting H i Absorption with Lyα Emitters at z ≈ 3.3.” <i>Astrophysical Journal</i>, vol. 980, no. 2, 171, IOP Publishing, 2025, doi:<a href=\"https://doi.org/10.3847/1538-4357/ada7e9\">10.3847/1538-4357/ada7e9</a>.","ista":"Banerjee E, Muzahid S, Schaye J, Blaizot J, Bouché N, Cantalupo S, Johnson SD, Matthee JJ, Verhamme A. 2025. MUSEQuBES: Connecting H i Absorption with Lyα emitters at z ≈ 3.3. Astrophysical Journal. 980(2), 171."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"journal_article","day":"20","article_processing_charge":"Yes","ddc":["520"],"has_accepted_license":"1","author":[{"last_name":"Banerjee","full_name":"Banerjee, Eshita","first_name":"Eshita"},{"full_name":"Muzahid, Sowgat","first_name":"Sowgat","last_name":"Muzahid"},{"last_name":"Schaye","full_name":"Schaye, Joop","first_name":"Joop"},{"last_name":"Blaizot","full_name":"Blaizot, Jérémy","first_name":"Jérémy"},{"full_name":"Bouché, Nicolas","first_name":"Nicolas","last_name":"Bouché"},{"full_name":"Cantalupo, Sebastiano","first_name":"Sebastiano","last_name":"Cantalupo"},{"first_name":"Sean D.","full_name":"Johnson, Sean D.","last_name":"Johnson"},{"last_name":"Matthee","id":"7439a258-f3c0-11ec-9501-9df22fe06720","orcid":"0000-0003-2871-127X","first_name":"Jorryt J","full_name":"Matthee, Jorryt J"},{"last_name":"Verhamme","first_name":"Anne","full_name":"Verhamme, Anne"}],"title":"MUSEQuBES: Connecting H i Absorption with Lyα emitters at z ≈ 3.3","intvolume":"       980","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)"},"article_number":"171","volume":980,"publication":"Astrophysical Journal","doi":"10.3847/1538-4357/ada7e9","OA_place":"publisher","month":"02","status":"public","OA_type":"gold","DOAJ_listed":"1","acknowledgement":"We would like to thank the anonymous referee for useful comments. We thank Marijke Segers, Lorrie Straka, and Monica Turner for their early contributions to the MUSEQuBES project. We thank Raghunathan Srianand for useful suggestions. E.B. thanks Labanya Kumar Guha and Yucheng Guo for helpful discussions. S.C. gratefully acknowledges the fund support from the European Research Council (ERC).\r\n\r\nSoftware: NumPy (C. R. Harris et al. 2020), SciPy (P. Virtanen et al. 2020), Matplotlib (J. D. Hunter 2007), and AstroPy (Astropy Collaboration et al. 2013, 2018).","publisher":"IOP Publishing","date_updated":"2025-03-10T11:56:14Z","oa":1,"date_published":"2025-02-20T00:00:00Z","scopus_import":"1","year":"2025","oa_version":"Published Version","date_created":"2025-03-09T23:01:26Z","quality_controlled":"1","issue":"2","publication_status":"published","_id":"19365","language":[{"iso":"eng"}]}