@article{meyer_constraining_2022,
	title = {Constraining galaxy overdensities around three z{\textasciitilde}6.5 quasars with {ALMA} and {MUSE}},
	url = {https://arxiv.org/abs/2201.09720v1},
	abstract = {We quantify galaxy overdensities around three high-redshift quasars with known [CII] 158um companions: PJ231-20 (z=6.59), PJ308-21 (z=6.24) and J0305-3150 (z=6.61). Recent SCUBA2 imaging revealed the presence of 17 submillimeter galaxies (SMG) with sky separations \$0.7'{\textless} {\textbackslash}theta {\textless} 2.4'\$ from these three quasars. We present ALMA Band 6 follow-up observations of these SCUBA2-selected SMGs to confirm their nature and redshift. We also search for continuum-undetected [CII] emitters in the ALMA pointings and make use of archival MUSE observations to search for Lyman-\${\textbackslash}alpha\$ Emitters (LAE) associated with the quasars. While most of the SCUBA2-selected sources are detected with ALMA in the continuum, no [CII] line emission could be detected, indicating that they are not at the quasar redshifts. Based on the serendipitous detection of CO 7-6 and [CI] emission lines, we find that four SMGs in the field of PJ231-20 are at z{\textasciitilde}2.4, which is coincident with the redshift of a Mg II absorber in the quasar rest-frame UV spectrum. We report the discovery of 2 LAEs within {\textless}0.6 cMpc of PJ231-20 at the same redshift, indicating a LAE overdensity around this quasar. Taken together, these observations provide new constraints on the large-scale excess of Lyman-\${\textbackslash}alpha\$- and [CII]-emitting galaxies around z{\textgreater}6 quasars and suggest that only wide-field observations, such as MUSE, ALMA or JWST mosaics, can reveal a comprehensive picture of large-scale structure around quasars in the first billion years of the Universe.},
	language = {en},
	urldate = {2022-02-22},
	author = {Meyer, Romain A. and Decarli, Roberto and Walter, Fabian and Li, Qiong and Wang, Ran and Mazzucchelli, Chiara and Bañados, Eduardo and Farina, Emanuele P. and Venemans, Bram},
	month = jan,
	year = {2022},
}

{"_id":"DYe8LZCKn6SJiLTrv","bibbaseid":"meyer-decarli-walter-li-wang-mazzucchelli-baados-farina-etal-constraininggalaxyoverdensitiesaroundthreeztextasciitilde65quasarswithalmaandmuse-2022","author_short":["Meyer, R. A.","Decarli, R.","Walter, F.","Li, Q.","Wang, R.","Mazzucchelli, C.","Bañados, E.","Farina, E. P.","Venemans, B."],"bibdata":{"bibtype":"article","type":"article","title":"Constraining galaxy overdensities around three z\\textasciitilde6.5 quasars with ALMA and MUSE","url":"https://arxiv.org/abs/2201.09720v1","abstract":"We quantify galaxy overdensities around three high-redshift quasars with known [CII] 158um companions: PJ231-20 (z=6.59), PJ308-21 (z=6.24) and J0305-3150 (z=6.61). Recent SCUBA2 imaging revealed the presence of 17 submillimeter galaxies (SMG) with sky separations \\$0.7'{\\textless} {\\textbackslash}theta {\\textless} 2.4'\\$ from these three quasars. We present ALMA Band 6 follow-up observations of these SCUBA2-selected SMGs to confirm their nature and redshift. We also search for continuum-undetected [CII] emitters in the ALMA pointings and make use of archival MUSE observations to search for Lyman-\\${\\textbackslash}alpha\\$ Emitters (LAE) associated with the quasars. While most of the SCUBA2-selected sources are detected with ALMA in the continuum, no [CII] line emission could be detected, indicating that they are not at the quasar redshifts. Based on the serendipitous detection of CO 7-6 and [CI] emission lines, we find that four SMGs in the field of PJ231-20 are at z\\textasciitilde2.4, which is coincident with the redshift of a Mg II absorber in the quasar rest-frame UV spectrum. We report the discovery of 2 LAEs within \\textless0.6 cMpc of PJ231-20 at the same redshift, indicating a LAE overdensity around this quasar. Taken together, these observations provide new constraints on the large-scale excess of Lyman-\\${\\textbackslash}alpha\\$- and [CII]-emitting galaxies around z\\textgreater6 quasars and suggest that only wide-field observations, such as MUSE, ALMA or JWST mosaics, can reveal a comprehensive picture of large-scale structure around quasars in the first billion years of the Universe.","language":"en","urldate":"2022-02-22","author":[{"propositions":[],"lastnames":["Meyer"],"firstnames":["Romain","A."],"suffixes":[]},{"propositions":[],"lastnames":["Decarli"],"firstnames":["Roberto"],"suffixes":[]},{"propositions":[],"lastnames":["Walter"],"firstnames":["Fabian"],"suffixes":[]},{"propositions":[],"lastnames":["Li"],"firstnames":["Qiong"],"suffixes":[]},{"propositions":[],"lastnames":["Wang"],"firstnames":["Ran"],"suffixes":[]},{"propositions":[],"lastnames":["Mazzucchelli"],"firstnames":["Chiara"],"suffixes":[]},{"propositions":[],"lastnames":["Bañados"],"firstnames":["Eduardo"],"suffixes":[]},{"propositions":[],"lastnames":["Farina"],"firstnames":["Emanuele","P."],"suffixes":[]},{"propositions":[],"lastnames":["Venemans"],"firstnames":["Bram"],"suffixes":[]}],"month":"January","year":"2022","bibtex":"@article{meyer_constraining_2022,\n\ttitle = {Constraining galaxy overdensities around three z{\\textasciitilde}6.5 quasars with {ALMA} and {MUSE}},\n\turl = {https://arxiv.org/abs/2201.09720v1},\n\tabstract = {We quantify galaxy overdensities around three high-redshift quasars with known [CII] 158um companions: PJ231-20 (z=6.59), PJ308-21 (z=6.24) and J0305-3150 (z=6.61). Recent SCUBA2 imaging revealed the presence of 17 submillimeter galaxies (SMG) with sky separations \\$0.7'{\\textless} {\\textbackslash}theta {\\textless} 2.4'\\$ from these three quasars. We present ALMA Band 6 follow-up observations of these SCUBA2-selected SMGs to confirm their nature and redshift. We also search for continuum-undetected [CII] emitters in the ALMA pointings and make use of archival MUSE observations to search for Lyman-\\${\\textbackslash}alpha\\$ Emitters (LAE) associated with the quasars. While most of the SCUBA2-selected sources are detected with ALMA in the continuum, no [CII] line emission could be detected, indicating that they are not at the quasar redshifts. Based on the serendipitous detection of CO 7-6 and [CI] emission lines, we find that four SMGs in the field of PJ231-20 are at z{\\textasciitilde}2.4, which is coincident with the redshift of a Mg II absorber in the quasar rest-frame UV spectrum. We report the discovery of 2 LAEs within {\\textless}0.6 cMpc of PJ231-20 at the same redshift, indicating a LAE overdensity around this quasar. Taken together, these observations provide new constraints on the large-scale excess of Lyman-\\${\\textbackslash}alpha\\$- and [CII]-emitting galaxies around z{\\textgreater}6 quasars and suggest that only wide-field observations, such as MUSE, ALMA or JWST mosaics, can reveal a comprehensive picture of large-scale structure around quasars in the first billion years of the Universe.},\n\tlanguage = {en},\n\turldate = {2022-02-22},\n\tauthor = {Meyer, Romain A. and Decarli, Roberto and Walter, Fabian and Li, Qiong and Wang, Ran and Mazzucchelli, Chiara and Bañados, Eduardo and Farina, Emanuele P. and Venemans, Bram},\n\tmonth = jan,\n\tyear = {2022},\n}\n\n","author_short":["Meyer, R. A.","Decarli, R.","Walter, F.","Li, Q.","Wang, R.","Mazzucchelli, C.","Bañados, E.","Farina, E. P.","Venemans, B."],"key":"meyer_constraining_2022","id":"meyer_constraining_2022","bibbaseid":"meyer-decarli-walter-li-wang-mazzucchelli-baados-farina-etal-constraininggalaxyoverdensitiesaroundthreeztextasciitilde65quasarswithalmaandmuse-2022","role":"author","urls":{"Paper":"https://arxiv.org/abs/2201.09720v1"},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":[],"search_terms":["constraining","galaxy","overdensities","around","three","textasciitilde6","quasars","alma","muse","meyer","decarli","walter","li","wang","mazzucchelli","bañados","farina","venemans"],"title":"Constraining galaxy overdensities around three z\\textasciitilde6.5 quasars with ALMA and MUSE","year":2022}