@article{webb_detection_2017,
	title = {Detection of a {Substantial} {Molecular} {Gas} {Reservoir} in a brightest cluster galaxy at z = 1.7},
	volume = {1706},
	url = {http://adsabs.harvard.edu/abs/2017arXiv170601366W},
	abstract = {We report the detection of CO(2-1) emission coincident with the 
brightest cluster galaxy (BCG) of the high-redshift galaxy cluster
SpARCS1049+56, with the Redshift Search Receiver (RSR) on the Large
Millimetre Telescope (LMT). We confirm a spectroscopic redshift for the
gas of z = 1.7091+/-0.0004, which is consistent with the systemic
redshift of the cluster galaxies of z = 1.709. The line is well-fit by a
single component Gaussian with a RSR resolution-corrected FWHM of
569+/-63 km/s. We see no evidence for multiple velocity components in
the gas, as might be expected from the multiple image components seen in
near-infrared imaging with the Hubble Space Telescope. We measure the
integrated flux of the line to be 3.6+/-0.3 Jy km/s and, using alpha\_CO
= 0.8 Msun (K km s{\textasciicircum}-1 pc{\textasciicircum}2){\textasciicircum}-1 we estimate a total molecular gas mass of
1.1+/-0.1x10{\textasciicircum}11 Msun and a M\_H2/M\_star {\textasciitilde} 0.4. This is the largest gas
reservoir detected in a BCG above z {\textgreater} 1 to date. Given the
infrared-estimated star formation rate of 860+/-130 Msun/yr, this
corresponds to a gas depletion timescale of {\textasciitilde}0.1Gyr. We discuss several
possible mechanisms for depositing such a large gas reservoir to the
cluster center -- e.g., a cooling flow, a major galaxy-galaxy merger or
the stripping of gas from several galaxies -- but conclude that these
LMT data are not sufficient to differentiate between them.},
	journal = {ArXiv e-prints},
	author = {Webb, Tracy and Lowenthal, James and Yun, Min and Noble, Allison G. and Muzzin, Adam and Wilson, Gillian and Yee, H. K. C. and Cybulski, Ryan},
	month = jun,
	year = {2017},
	keywords = {Astrophysics - Astrophysics of Galaxies},
	pages = {arXiv:1706.01366},
}

{"_id":"4PAyC96w3iTueSvPK","bibbaseid":"webb-lowenthal-yun-noble-muzzin-wilson-yee-cybulski-detectionofasubstantialmoleculargasreservoirinabrightestclustergalaxyatz17-2017","author_short":["Webb, T.","Lowenthal, J.","Yun, M.","Noble, A. G.","Muzzin, A.","Wilson, G.","Yee, H. K. C.","Cybulski, R."],"bibdata":{"bibtype":"article","type":"article","title":"Detection of a Substantial Molecular Gas Reservoir in a brightest cluster galaxy at z = 1.7","volume":"1706","url":"http://adsabs.harvard.edu/abs/2017arXiv170601366W","abstract":"We report the detection of CO(2-1) emission coincident with the brightest cluster galaxy (BCG) of the high-redshift galaxy cluster SpARCS1049+56, with the Redshift Search Receiver (RSR) on the Large Millimetre Telescope (LMT). We confirm a spectroscopic redshift for the gas of z = 1.7091+/-0.0004, which is consistent with the systemic redshift of the cluster galaxies of z = 1.709. The line is well-fit by a single component Gaussian with a RSR resolution-corrected FWHM of 569+/-63 km/s. We see no evidence for multiple velocity components in the gas, as might be expected from the multiple image components seen in near-infrared imaging with the Hubble Space Telescope. We measure the integrated flux of the line to be 3.6+/-0.3 Jy km/s and, using alpha_CO = 0.8 Msun (K km s\\textasciicircum-1 pc\\textasciicircum2)\\textasciicircum-1 we estimate a total molecular gas mass of 1.1+/-0.1x10\\textasciicircum11 Msun and a M_H2/M_star \\textasciitilde 0.4. This is the largest gas reservoir detected in a BCG above z \\textgreater 1 to date. Given the infrared-estimated star formation rate of 860+/-130 Msun/yr, this corresponds to a gas depletion timescale of \\textasciitilde0.1Gyr. We discuss several possible mechanisms for depositing such a large gas reservoir to the cluster center – e.g., a cooling flow, a major galaxy-galaxy merger or the stripping of gas from several galaxies – but conclude that these LMT data are not sufficient to differentiate between them.","journal":"ArXiv e-prints","author":[{"propositions":[],"lastnames":["Webb"],"firstnames":["Tracy"],"suffixes":[]},{"propositions":[],"lastnames":["Lowenthal"],"firstnames":["James"],"suffixes":[]},{"propositions":[],"lastnames":["Yun"],"firstnames":["Min"],"suffixes":[]},{"propositions":[],"lastnames":["Noble"],"firstnames":["Allison","G."],"suffixes":[]},{"propositions":[],"lastnames":["Muzzin"],"firstnames":["Adam"],"suffixes":[]},{"propositions":[],"lastnames":["Wilson"],"firstnames":["Gillian"],"suffixes":[]},{"propositions":[],"lastnames":["Yee"],"firstnames":["H.","K.","C."],"suffixes":[]},{"propositions":[],"lastnames":["Cybulski"],"firstnames":["Ryan"],"suffixes":[]}],"month":"June","year":"2017","keywords":"Astrophysics - Astrophysics of Galaxies","pages":"arXiv:1706.01366","bibtex":"@article{webb_detection_2017,\n\ttitle = {Detection of a {Substantial} {Molecular} {Gas} {Reservoir} in a brightest cluster galaxy at z = 1.7},\n\tvolume = {1706},\n\turl = {http://adsabs.harvard.edu/abs/2017arXiv170601366W},\n\tabstract = {We report the detection of CO(2-1) emission coincident with the \nbrightest cluster galaxy (BCG) of the high-redshift galaxy cluster\nSpARCS1049+56, with the Redshift Search Receiver (RSR) on the Large\nMillimetre Telescope (LMT). We confirm a spectroscopic redshift for the\ngas of z = 1.7091+/-0.0004, which is consistent with the systemic\nredshift of the cluster galaxies of z = 1.709. The line is well-fit by a\nsingle component Gaussian with a RSR resolution-corrected FWHM of\n569+/-63 km/s. We see no evidence for multiple velocity components in\nthe gas, as might be expected from the multiple image components seen in\nnear-infrared imaging with the Hubble Space Telescope. We measure the\nintegrated flux of the line to be 3.6+/-0.3 Jy km/s and, using alpha\\_CO\n= 0.8 Msun (K km s{\\textasciicircum}-1 pc{\\textasciicircum}2){\\textasciicircum}-1 we estimate a total molecular gas mass of\n1.1+/-0.1x10{\\textasciicircum}11 Msun and a M\\_H2/M\\_star {\\textasciitilde} 0.4. This is the largest gas\nreservoir detected in a BCG above z {\\textgreater} 1 to date. Given the\ninfrared-estimated star formation rate of 860+/-130 Msun/yr, this\ncorresponds to a gas depletion timescale of {\\textasciitilde}0.1Gyr. We discuss several\npossible mechanisms for depositing such a large gas reservoir to the\ncluster center -- e.g., a cooling flow, a major galaxy-galaxy merger or\nthe stripping of gas from several galaxies -- but conclude that these\nLMT data are not sufficient to differentiate between them.},\n\tjournal = {ArXiv e-prints},\n\tauthor = {Webb, Tracy and Lowenthal, James and Yun, Min and Noble, Allison G. and Muzzin, Adam and Wilson, Gillian and Yee, H. K. C. and Cybulski, Ryan},\n\tmonth = jun,\n\tyear = {2017},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n\tpages = {arXiv:1706.01366},\n}\n\n","author_short":["Webb, T.","Lowenthal, J.","Yun, M.","Noble, A. G.","Muzzin, A.","Wilson, G.","Yee, H. K. C.","Cybulski, R."],"key":"webb_detection_2017","id":"webb_detection_2017","bibbaseid":"webb-lowenthal-yun-noble-muzzin-wilson-yee-cybulski-detectionofasubstantialmoleculargasreservoirinabrightestclustergalaxyatz17-2017","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2017arXiv170601366W"},"keyword":["Astrophysics - Astrophysics of Galaxies"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies"],"search_terms":["detection","substantial","molecular","gas","reservoir","brightest","cluster","galaxy","webb","lowenthal","yun","noble","muzzin","wilson","yee","cybulski"],"title":"Detection of a Substantial Molecular Gas Reservoir in a brightest cluster galaxy at z = 1.7","year":2017}