@article{trakhtenbrot_alma_2016,
	title = {{ALMA} {Observations} {Show} {Major} {Mergers} {Among} the {Host} {Galaxies} of {Fast}-growing, {High}-redshift {Supermassive} {Black} {Holes}},
	url = {http://arxiv.org/abs/1612.00010},
	abstract = {We present new ALMA band-7 data for a sample of six luminous quasars at z{\textasciitilde}4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties: the typical accretion rates and black hole masses are L/L\_Edd{\textasciitilde}0.7 and M\_BH{\textasciitilde}10{\textasciicircum}9 M\_sol. Our sample consists of three "FIR-bright" sources which were individually detected in previous Herschel/SPIRE observations, with star formation rates of SFR{\textgreater}1000 M\_sol/yr, and three "FIR-faint" sources for which Herschel stacking analysis implies a typical SFR of {\textasciitilde}400 M\_sol/yr. The dusty interstellar medium in the hosts of all six quasars is clearly detected in the ALMA data, and resolved on scales of 2 kpc, in both continuum ({\textbackslash}lambda\_rest{\textasciitilde}150um) and [CII]157.74um line emission. The continuum emission is in good agreement with the expectations from the Herschel data, confirming the intense SF activity in the quasar hosts. Importantly, we detect companion sub-mm galaxies (SMGs) for three sources -- one FIR-bright and two FIR-faint, separated by {\textasciitilde}14-45 kpc and {\textless}450 km/s from the quasar hosts. The [CII]-based dynamical mass estimates for the interacting SMGs are within a factor of {\textasciitilde}3 of the quasar hosts' masses, while the continuum emission implies SFR(quasar){\textasciitilde}(2-11)xSFR(SMG). Our ALMA data therefore clearly support the idea that major mergers are important drivers for rapid, early SMBH growth. However, the fact that not all high-SFR quasar hosts are accompanied by interacting SMGs, and the gas kinematics as observed by ALMA, suggest that other processes may be fueling these systems. Our analysis thus demonstrates the diversity of host galaxy properties and gas accretion mechanisms associated with early and rapid SMBH growth.},
	urldate = {2017-01-19},
	journal = {arXiv:1612.00010 [astro-ph]},
	author = {Trakhtenbrot, Benny and Lira, Paulina and Netzer, Hagai and Cicone, Claudia and Maiolino, Roberto and Shemmer, Ohad},
	month = nov,
	year = {2016},
	note = {arXiv: 1612.00010},
	keywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena},
}

{"_id":"nfFzBKeeg63FZYbgS","bibbaseid":"trakhtenbrot-lira-netzer-cicone-maiolino-shemmer-almaobservationsshowmajormergersamongthehostgalaxiesoffastgrowinghighredshiftsupermassiveblackholes-2016","author_short":["Trakhtenbrot, B.","Lira, P.","Netzer, H.","Cicone, C.","Maiolino, R.","Shemmer, O."],"bibdata":{"bibtype":"article","type":"article","title":"ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift Supermassive Black Holes","url":"http://arxiv.org/abs/1612.00010","abstract":"We present new ALMA band-7 data for a sample of six luminous quasars at z\\textasciitilde4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties: the typical accretion rates and black hole masses are L/L_Edd\\textasciitilde0.7 and M_BH\\textasciitilde10\\textasciicircum9 M_sol. Our sample consists of three \"FIR-bright\" sources which were individually detected in previous Herschel/SPIRE observations, with star formation rates of SFR\\textgreater1000 M_sol/yr, and three \"FIR-faint\" sources for which Herschel stacking analysis implies a typical SFR of \\textasciitilde400 M_sol/yr. The dusty interstellar medium in the hosts of all six quasars is clearly detected in the ALMA data, and resolved on scales of 2 kpc, in both continuum (\\textbackslashlambda_rest\\textasciitilde150um) and [CII]157.74um line emission. The continuum emission is in good agreement with the expectations from the Herschel data, confirming the intense SF activity in the quasar hosts. Importantly, we detect companion sub-mm galaxies (SMGs) for three sources – one FIR-bright and two FIR-faint, separated by \\textasciitilde14-45 kpc and \\textless450 km/s from the quasar hosts. The [CII]-based dynamical mass estimates for the interacting SMGs are within a factor of \\textasciitilde3 of the quasar hosts' masses, while the continuum emission implies SFR(quasar)\\textasciitilde(2-11)xSFR(SMG). Our ALMA data therefore clearly support the idea that major mergers are important drivers for rapid, early SMBH growth. However, the fact that not all high-SFR quasar hosts are accompanied by interacting SMGs, and the gas kinematics as observed by ALMA, suggest that other processes may be fueling these systems. Our analysis thus demonstrates the diversity of host galaxy properties and gas accretion mechanisms associated with early and rapid SMBH growth.","urldate":"2017-01-19","journal":"arXiv:1612.00010 [astro-ph]","author":[{"propositions":[],"lastnames":["Trakhtenbrot"],"firstnames":["Benny"],"suffixes":[]},{"propositions":[],"lastnames":["Lira"],"firstnames":["Paulina"],"suffixes":[]},{"propositions":[],"lastnames":["Netzer"],"firstnames":["Hagai"],"suffixes":[]},{"propositions":[],"lastnames":["Cicone"],"firstnames":["Claudia"],"suffixes":[]},{"propositions":[],"lastnames":["Maiolino"],"firstnames":["Roberto"],"suffixes":[]},{"propositions":[],"lastnames":["Shemmer"],"firstnames":["Ohad"],"suffixes":[]}],"month":"November","year":"2016","note":"arXiv: 1612.00010","keywords":"Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena","bibtex":"@article{trakhtenbrot_alma_2016,\n\ttitle = {{ALMA} {Observations} {Show} {Major} {Mergers} {Among} the {Host} {Galaxies} of {Fast}-growing, {High}-redshift {Supermassive} {Black} {Holes}},\n\turl = {http://arxiv.org/abs/1612.00010},\n\tabstract = {We present new ALMA band-7 data for a sample of six luminous quasars at z{\\textasciitilde}4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties: the typical accretion rates and black hole masses are L/L\\_Edd{\\textasciitilde}0.7 and M\\_BH{\\textasciitilde}10{\\textasciicircum}9 M\\_sol. Our sample consists of three \"FIR-bright\" sources which were individually detected in previous Herschel/SPIRE observations, with star formation rates of SFR{\\textgreater}1000 M\\_sol/yr, and three \"FIR-faint\" sources for which Herschel stacking analysis implies a typical SFR of {\\textasciitilde}400 M\\_sol/yr. The dusty interstellar medium in the hosts of all six quasars is clearly detected in the ALMA data, and resolved on scales of 2 kpc, in both continuum ({\\textbackslash}lambda\\_rest{\\textasciitilde}150um) and [CII]157.74um line emission. The continuum emission is in good agreement with the expectations from the Herschel data, confirming the intense SF activity in the quasar hosts. Importantly, we detect companion sub-mm galaxies (SMGs) for three sources -- one FIR-bright and two FIR-faint, separated by {\\textasciitilde}14-45 kpc and {\\textless}450 km/s from the quasar hosts. The [CII]-based dynamical mass estimates for the interacting SMGs are within a factor of {\\textasciitilde}3 of the quasar hosts' masses, while the continuum emission implies SFR(quasar){\\textasciitilde}(2-11)xSFR(SMG). Our ALMA data therefore clearly support the idea that major mergers are important drivers for rapid, early SMBH growth. However, the fact that not all high-SFR quasar hosts are accompanied by interacting SMGs, and the gas kinematics as observed by ALMA, suggest that other processes may be fueling these systems. Our analysis thus demonstrates the diversity of host galaxy properties and gas accretion mechanisms associated with early and rapid SMBH growth.},\n\turldate = {2017-01-19},\n\tjournal = {arXiv:1612.00010 [astro-ph]},\n\tauthor = {Trakhtenbrot, Benny and Lira, Paulina and Netzer, Hagai and Cicone, Claudia and Maiolino, Roberto and Shemmer, Ohad},\n\tmonth = nov,\n\tyear = {2016},\n\tnote = {arXiv: 1612.00010},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena},\n}\n\n","author_short":["Trakhtenbrot, B.","Lira, P.","Netzer, H.","Cicone, C.","Maiolino, R.","Shemmer, O."],"key":"trakhtenbrot_alma_2016","id":"trakhtenbrot_alma_2016","bibbaseid":"trakhtenbrot-lira-netzer-cicone-maiolino-shemmer-almaobservationsshowmajormergersamongthehostgalaxiesoffastgrowinghighredshiftsupermassiveblackholes-2016","role":"author","urls":{"Paper":"http://arxiv.org/abs/1612.00010"},"keyword":["Astrophysics - Astrophysics of Galaxies","Astrophysics - Cosmology and Nongalactic Astrophysics","Astrophysics - High Energy Astrophysical Phenomena"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies","astrophysics - cosmology and nongalactic astrophysics","astrophysics - high energy astrophysical phenomena"],"search_terms":["alma","observations","show","major","mergers","host","galaxies","fast","growing","high","redshift","supermassive","black","holes","trakhtenbrot","lira","netzer","cicone","maiolino","shemmer"],"title":"ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift Supermassive Black Holes","year":2016}