Modelling high-resolution ALMA observations of strongly lensed dustystar forming galaxies detected by Herschel. Maresca, J., Dye, S., Amvrosiadis, A., Bendo, G., Cooray, A., De Zotti, G., Dunne, L., Eales, S., Furlanetto, C., González-Nuevo, J., Greener, M., Ivison, R., Lapi, A., Negrello, M., Riechers, D., Serjeant, S., Tergolina, M., & Wardlow, J. arXiv:2111.09680 [astro-ph], November, 2021. arXiv: 2111.09680
Modelling high-resolution ALMA observations of strongly lensed dustystar forming galaxies detected by Herschel [link]Paper  abstract   bibtex   
We present modelling of \textasciitilde0.1arcsec resolution Atacama Large Millimetre/sub-millimeter Array imaging of seven strong gravitationally lensed galaxies detected by the Herschel Space Observatory. Four of these systems are galaxy-galaxy scale strong lenses, with the remaining three being group-scale lenses. Through careful modelling of visibilities, we infer the mass profiles of the lensing galaxies and by determining the magnification factors, we investigate the intrinsic properties and morphologies of the lensed sub-millimetre sources. We find that these sub-millimetre sources all have ratios of star formation rate to dust mass that is consistent with or in excess of the mean ratio for high-redshift sub-millimetre galaxies and low redshift ultra-luminous infrared galaxies. The contribution to the infrared luminosity from possible AGN is not quantified and so could be biasing our star formation rates to higher values. The majority of our lens models have mass density slopes close to isothermal, but some systems show significant differences.
@article{maresca_modelling_2021,
	title = {Modelling high-resolution {ALMA} observations of strongly lensed dustystar forming galaxies detected by {Herschel}},
	url = {http://arxiv.org/abs/2111.09680},
	abstract = {We present modelling of {\textasciitilde}0.1arcsec resolution Atacama Large Millimetre/sub-millimeter Array imaging of seven strong gravitationally lensed galaxies detected by the Herschel Space Observatory. Four of these systems are galaxy-galaxy scale strong lenses, with the remaining three being group-scale lenses. Through careful modelling of visibilities, we infer the mass profiles of the lensing galaxies and by determining the magnification factors, we investigate the intrinsic properties and morphologies of the lensed sub-millimetre sources. We find that these sub-millimetre sources all have ratios of star formation rate to dust mass that is consistent with or in excess of the mean ratio for high-redshift sub-millimetre galaxies and low redshift ultra-luminous infrared galaxies. The contribution to the infrared luminosity from possible AGN is not quantified and so could be biasing our star formation rates to higher values. The majority of our lens models have mass density slopes close to isothermal, but some systems show significant differences.},
	urldate = {2021-12-20},
	journal = {arXiv:2111.09680 [astro-ph]},
	author = {Maresca, Jacob and Dye, Simon and Amvrosiadis, Aristeidis and Bendo, George and Cooray, Asantha and De Zotti, Gianfranco and Dunne, Loretta and Eales, Stephen and Furlanetto, Cristina and González-Nuevo, Joaquin and Greener, Michael and Ivison, Robert and Lapi, Andrea and Negrello, Mattia and Riechers, Dominik and Serjeant, Stephen and Tergolina, Mônica and Wardlow, Julie},
	month = nov,
	year = {2021},
	note = {arXiv: 2111.09680},
	keywords = {Astrophysics - Astrophysics of Galaxies},
}

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