Multiwavelength characterisation of an ACT-selected, lensed dusty star-forming galaxy at z=2.64. Roberts-Borsani, G. W., Jiménez-Donaire, M. J., Daprà, M., Alatalo, K., Aretxaga, I., Álvarez-Márquez, J., Baker, A. J., Fujimoto, S., Gallardo, P. A., Gralla, M., Hilton, M., Hughes, J. P., Jiménez, C., Laporte, N., Marriage, T. A., Nati, F., Rivera, J., Sievers, A., Weiß, A., Wilson, G. W., Wollack, E. J., & Yun, M. S. ArXiv e-prints, 1706:arXiv:1706.06099, June, 2017. ![Multiwavelength characterisation of an ACT-selected, lensed dusty star-forming galaxy at z=2.64 [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex We present \textbackslashci\textbackslash,(2–1) and multi-transition \${\textasciicircum}\{12\}\$CO observations of a dusty star-forming galaxy, ACT\textbackslash,J2029+0120, which we spectroscopically confirm to lie at \$z\$\textbackslash,=\textbackslash,2.64. We detect CO(3–2), CO(5–4), CO(7–6), CO(8–7), and \textbackslashci\textbackslash,(2–1) at high significance, tentatively detect HCO\${\textasciicircum}\{+\}\$(4–3), and place strong upper limits on the integrated strength of dense gas tracers (HCN(4–3) and CS(7–6)). Multi-transition CO observations and dense gas tracers can provide valuable constraints on the molecular gas content and excitation conditions in high-redshift galaxies. We therefore use this unique data set to construct a CO spectral line energy distribution (SLED) of the source, which is most consistent with that of a ULIRG/Seyfert or QSO host object in the taxonomy of the \textbackslashtextit\Herschel\ Comprehensive ULIRG Emission Survey. We employ RADEX models to fit the peak of the CO SLED, inferring a temperature of T\${\textbackslash}sim\$117 K and \$n_\{{\textbackslash}text\{H\}_2\}{\textbackslash}sim10{\textasciicircum}5\$ cm\${\textasciicircum}\{-3\}\$, most consistent with a ULIRG/QSO object and the presence of high density tracers. We also find that the velocity width of the \textbackslashci\textbackslash line is potentially larger than seen in all CO transitions for this object, and that the \$L'_\{{\textbackslash}rm C{\textbackslash},I(2-1)\}/L'_\{{\textbackslash}rm CO(3-2)\}\$ ratio is also larger than seen in other lensed and unlensed submillimeter galaxies and QSO hosts; if confirmed, this anomaly could be an effect of differential lensing of a shocked molecular outflow.
@article{roberts-borsani_multiwavelength_2017,
title = {Multiwavelength characterisation of an {ACT}-selected, lensed dusty star-forming galaxy at z=2.64},
volume = {1706},
url = {http://adsabs.harvard.edu/abs/2017arXiv170606099R},
abstract = {We present {\textbackslash}ci{\textbackslash},(2--1) and multi-transition \${\textasciicircum}\{12\}\$CO observations of a
dusty star-forming galaxy, ACT{\textbackslash},J2029+0120, which we spectroscopically
confirm to lie at \$z\${\textbackslash},={\textbackslash},2.64. We detect CO(3--2), CO(5--4), CO(7--6),
CO(8--7), and {\textbackslash}ci{\textbackslash},(2--1) at high significance, tentatively detect
HCO\${\textasciicircum}\{+\}\$(4--3), and place strong upper limits on the integrated
strength of dense gas tracers (HCN(4--3) and CS(7--6)). Multi-transition
CO observations and dense gas tracers can provide valuable constraints
on the molecular gas content and excitation conditions in high-redshift
galaxies. We therefore use this unique data set to construct a CO
spectral line energy distribution (SLED) of the source, which is most
consistent with that of a ULIRG/Seyfert or QSO host object in the
taxonomy of the {\textbackslash}textit\{Herschel\} Comprehensive ULIRG Emission Survey.
We employ RADEX models to fit the peak of the CO SLED, inferring a
temperature of T\${\textbackslash}sim\$117 K and \$n\_\{{\textbackslash}text\{H\}\_2\}{\textbackslash}sim10{\textasciicircum}5\$ cm\${\textasciicircum}\{-3\}\$, most
consistent with a ULIRG/QSO object and the presence of high density
tracers. We also find that the velocity width of the {\textbackslash}ci{\textbackslash} line is
potentially larger than seen in all CO transitions for this object, and
that the \$L'\_\{{\textbackslash}rm C{\textbackslash},I(2-1)\}/L'\_\{{\textbackslash}rm CO(3-2)\}\$ ratio is also larger than
seen in other lensed and unlensed submillimeter galaxies and QSO hosts;
if confirmed, this anomaly could be an effect of differential lensing of
a shocked molecular outflow.},
journal = {ArXiv e-prints},
author = {Roberts-Borsani, G. W. and Jiménez-Donaire, M. J. and Daprà, M. and Alatalo, K. and Aretxaga, I. and Álvarez-Márquez, J. and Baker, A. J. and Fujimoto, S. and Gallardo, P. A. and Gralla, M. and Hilton, M. and Hughes, J. P. and Jiménez, C. and Laporte, N. and Marriage, T. A. and Nati, F. and Rivera, J. and Sievers, A. and Weiß, A. and Wilson, G. W. and Wollack, E. J. and Yun, M. S.},
month = jun,
year = {2017},
keywords = {Astrophysics - Astrophysics of Galaxies},
pages = {arXiv:1706.06099},
}
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{"_id":"cmihix64QgSxZTn7S","bibbaseid":"robertsborsani-jimnezdonaire-dapr-alatalo-aretxaga-lvarezmrquez-baker-fujimoto-etal-multiwavelengthcharacterisationofanactselectedlenseddustystarforminggalaxyatz264-2017","author_short":["Roberts-Borsani, G. W.","Jiménez-Donaire, M. J.","Daprà, M.","Alatalo, K.","Aretxaga, I.","Álvarez-Márquez, J.","Baker, A. J.","Fujimoto, S.","Gallardo, P. A.","Gralla, M.","Hilton, M.","Hughes, J. P.","Jiménez, C.","Laporte, N.","Marriage, T. A.","Nati, F.","Rivera, J.","Sievers, A.","Weiß, A.","Wilson, G. W.","Wollack, E. J.","Yun, M. S."],"bibdata":{"bibtype":"article","type":"article","title":"Multiwavelength characterisation of an ACT-selected, lensed dusty star-forming galaxy at z=2.64","volume":"1706","url":"http://adsabs.harvard.edu/abs/2017arXiv170606099R","abstract":"We present \\textbackslashci\\textbackslash,(2–1) and multi-transition \\${\\textasciicircum}\\{12\\}\\$CO observations of a dusty star-forming galaxy, ACT\\textbackslash,J2029+0120, which we spectroscopically confirm to lie at \\$z\\$\\textbackslash,=\\textbackslash,2.64. We detect CO(3–2), CO(5–4), CO(7–6), CO(8–7), and \\textbackslashci\\textbackslash,(2–1) at high significance, tentatively detect HCO\\${\\textasciicircum}\\{+\\}\\$(4–3), and place strong upper limits on the integrated strength of dense gas tracers (HCN(4–3) and CS(7–6)). Multi-transition CO observations and dense gas tracers can provide valuable constraints on the molecular gas content and excitation conditions in high-redshift galaxies. We therefore use this unique data set to construct a CO spectral line energy distribution (SLED) of the source, which is most consistent with that of a ULIRG/Seyfert or QSO host object in the taxonomy of the \\textbackslashtextit\\Herschel\\ Comprehensive ULIRG Emission Survey. We employ RADEX models to fit the peak of the CO SLED, inferring a temperature of T\\${\\textbackslash}sim\\$117 K and \\$n_\\{{\\textbackslash}text\\{H\\}_2\\}{\\textbackslash}sim10{\\textasciicircum}5\\$ cm\\${\\textasciicircum}\\{-3\\}\\$, most consistent with a ULIRG/QSO object and the presence of high density tracers. We also find that the velocity width of the \\textbackslashci\\textbackslash line is potentially larger than seen in all CO transitions for this object, and that the \\$L'_\\{{\\textbackslash}rm C{\\textbackslash},I(2-1)\\}/L'_\\{{\\textbackslash}rm CO(3-2)\\}\\$ ratio is also larger than seen in other lensed and unlensed submillimeter galaxies and QSO hosts; if confirmed, this anomaly could be an effect of differential lensing of a shocked molecular outflow.","journal":"ArXiv e-prints","author":[{"propositions":[],"lastnames":["Roberts-Borsani"],"firstnames":["G.","W."],"suffixes":[]},{"propositions":[],"lastnames":["Jiménez-Donaire"],"firstnames":["M.","J."],"suffixes":[]},{"propositions":[],"lastnames":["Daprà"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Alatalo"],"firstnames":["K."],"suffixes":[]},{"propositions":[],"lastnames":["Aretxaga"],"firstnames":["I."],"suffixes":[]},{"propositions":[],"lastnames":["Álvarez-Márquez"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Baker"],"firstnames":["A.","J."],"suffixes":[]},{"propositions":[],"lastnames":["Fujimoto"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Gallardo"],"firstnames":["P.","A."],"suffixes":[]},{"propositions":[],"lastnames":["Gralla"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Hilton"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Hughes"],"firstnames":["J.","P."],"suffixes":[]},{"propositions":[],"lastnames":["Jiménez"],"firstnames":["C."],"suffixes":[]},{"propositions":[],"lastnames":["Laporte"],"firstnames":["N."],"suffixes":[]},{"propositions":[],"lastnames":["Marriage"],"firstnames":["T.","A."],"suffixes":[]},{"propositions":[],"lastnames":["Nati"],"firstnames":["F."],"suffixes":[]},{"propositions":[],"lastnames":["Rivera"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Sievers"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Weiß"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Wilson"],"firstnames":["G.","W."],"suffixes":[]},{"propositions":[],"lastnames":["Wollack"],"firstnames":["E.","J."],"suffixes":[]},{"propositions":[],"lastnames":["Yun"],"firstnames":["M.","S."],"suffixes":[]}],"month":"June","year":"2017","keywords":"Astrophysics - Astrophysics of Galaxies","pages":"arXiv:1706.06099","bibtex":"@article{roberts-borsani_multiwavelength_2017,\n\ttitle = {Multiwavelength characterisation of an {ACT}-selected, lensed dusty star-forming galaxy at z=2.64},\n\tvolume = {1706},\n\turl = {http://adsabs.harvard.edu/abs/2017arXiv170606099R},\n\tabstract = {We present {\\textbackslash}ci{\\textbackslash},(2--1) and multi-transition \\${\\textasciicircum}\\{12\\}\\$CO observations of a \ndusty star-forming galaxy, ACT{\\textbackslash},J2029+0120, which we spectroscopically\nconfirm to lie at \\$z\\${\\textbackslash},={\\textbackslash},2.64. We detect CO(3--2), CO(5--4), CO(7--6),\nCO(8--7), and {\\textbackslash}ci{\\textbackslash},(2--1) at high significance, tentatively detect\nHCO\\${\\textasciicircum}\\{+\\}\\$(4--3), and place strong upper limits on the integrated\nstrength of dense gas tracers (HCN(4--3) and CS(7--6)). Multi-transition\nCO observations and dense gas tracers can provide valuable constraints\non the molecular gas content and excitation conditions in high-redshift\ngalaxies. We therefore use this unique data set to construct a CO\nspectral line energy distribution (SLED) of the source, which is most\nconsistent with that of a ULIRG/Seyfert or QSO host object in the\ntaxonomy of the {\\textbackslash}textit\\{Herschel\\} Comprehensive ULIRG Emission Survey.\nWe employ RADEX models to fit the peak of the CO SLED, inferring a\ntemperature of T\\${\\textbackslash}sim\\$117 K and \\$n\\_\\{{\\textbackslash}text\\{H\\}\\_2\\}{\\textbackslash}sim10{\\textasciicircum}5\\$ cm\\${\\textasciicircum}\\{-3\\}\\$, most\nconsistent with a ULIRG/QSO object and the presence of high density\ntracers. We also find that the velocity width of the {\\textbackslash}ci{\\textbackslash} line is\npotentially larger than seen in all CO transitions for this object, and\nthat the \\$L'\\_\\{{\\textbackslash}rm C{\\textbackslash},I(2-1)\\}/L'\\_\\{{\\textbackslash}rm CO(3-2)\\}\\$ ratio is also larger than\nseen in other lensed and unlensed submillimeter galaxies and QSO hosts;\nif confirmed, this anomaly could be an effect of differential lensing of\na shocked molecular outflow.},\n\tjournal = {ArXiv e-prints},\n\tauthor = {Roberts-Borsani, G. W. and Jiménez-Donaire, M. J. and Daprà, M. and Alatalo, K. and Aretxaga, I. and Álvarez-Márquez, J. and Baker, A. J. and Fujimoto, S. and Gallardo, P. A. and Gralla, M. and Hilton, M. and Hughes, J. P. and Jiménez, C. and Laporte, N. and Marriage, T. A. and Nati, F. and Rivera, J. and Sievers, A. and Weiß, A. and Wilson, G. W. and Wollack, E. J. and Yun, M. 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