Dust Properties of [CII] Detected z \${\textbackslash}sim\$ 5.5 Galaxies: New HST/WFC3 Near-IR Observations. Barišić, I., Faisst, A. L., Capak, P. L., Pavesi, R., Riechers, D. A., Scoville, N. Z., Cooke, K. C., Kartaltepe, J. S., Casey, C. M., & Smolčić, V. ArXiv e-prints, 1707:arXiv:1707.02980, July, 2017.
Paper abstract bibtex We examine the rest-frame ultra-violet (UV) properties of 10 [CII]\${\textbackslash}lambda158{\textbackslash},\{{\textbackslash}rm {\textbackslash}mu m\}\$\$-\$detected galaxies at \$z{\textbackslash}sim5.5\$ in COSMOS using new HST/WFC3 near-infrared imaging. Together with pre-existing \$158{\textbackslash},\{{\textbackslash}rm {\textbackslash}mu m\}-\$continuum and [CII] line measurements by ALMA, we study their dust attenuation properties on the IRX-\${\textbackslash}beta\$ diagram, which connects the total dust emission (\${\textbackslash}propto\$ IRX=log(\$L_\{FIR\}/L_\{1600\}\$)) to the line-of-sight dust column (\${\textbackslash}propto{\textbackslash}beta\$). We find systematically bluer UV continuum spectral slopes (\${\textbackslash}beta\$) compared to previous low-resolution ground-based measurements, which relieves some of the tension between models of dust attenuation and observations at high redshifts. While most of the galaxies are consistent with local starburst or Small Magellanic cloud like dust properties, we find galaxies with low IRX values and a large range in \${\textbackslash}beta\$ that cannot be explained by models of a uniform dust distribution well mixed with stars. A stacking analysis of Keck/DEIMOS optical spectra indicates that these galaxies are metal-poor with young stellar populations which could significantly alter their spatial dust distribution.
@article{barisic_dust_2017,
title = {Dust {Properties} of [{CII}] {Detected} z \${\textbackslash}sim\$ 5.5 {Galaxies}: {New} {HST}/{WFC3} {Near}-{IR} {Observations}},
volume = {1707},
shorttitle = {Dust {Properties} of [{CII}] {Detected} z \${\textbackslash}sim\$ 5.5 {Galaxies}},
url = {http://adsabs.harvard.edu/abs/2017arXiv170702980B},
abstract = {We examine the rest-frame ultra-violet (UV) properties of 10
[CII]\${\textbackslash}lambda158{\textbackslash},\{{\textbackslash}rm {\textbackslash}mu m\}\$\$-\$detected galaxies at \$z{\textbackslash}sim5.5\$ in
COSMOS using new HST/WFC3 near-infrared imaging. Together with
pre-existing \$158{\textbackslash},\{{\textbackslash}rm {\textbackslash}mu m\}-\$continuum and [CII] line measurements by
ALMA, we study their dust attenuation properties on the IRX-\${\textbackslash}beta\$
diagram, which connects the total dust emission (\${\textbackslash}propto\$
IRX=log(\$L\_\{FIR\}/L\_\{1600\}\$)) to the line-of-sight dust column
(\${\textbackslash}propto{\textbackslash}beta\$). We find systematically bluer UV continuum spectral
slopes (\${\textbackslash}beta\$) compared to previous low-resolution ground-based
measurements, which relieves some of the tension between models of dust
attenuation and observations at high redshifts. While most of the
galaxies are consistent with local starburst or Small Magellanic cloud
like dust properties, we find galaxies with low IRX values and a large
range in \${\textbackslash}beta\$ that cannot be explained by models of a uniform dust
distribution well mixed with stars. A stacking analysis of Keck/DEIMOS
optical spectra indicates that these galaxies are metal-poor with young
stellar populations which could significantly alter their spatial dust
distribution.},
journal = {ArXiv e-prints},
author = {Barišić, Ivana and Faisst, Andreas L. and Capak, Peter L. and Pavesi, Riccardo and Riechers, Dominik A. and Scoville, Nick Z. and Cooke, Kevin C. and Kartaltepe, Jeyhan S. and Casey, Caitlin M. and Smolčić, Vernesa},
month = jul,
year = {2017},
keywords = {Astrophysics - Astrophysics of Galaxies},
pages = {arXiv:1707.02980},
}
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Together with pre-existing \\$158{\\textbackslash},\\{{\\textbackslash}rm {\\textbackslash}mu m\\}-\\$continuum and [CII] line measurements by ALMA, we study their dust attenuation properties on the IRX-\\${\\textbackslash}beta\\$ diagram, which connects the total dust emission (\\${\\textbackslash}propto\\$ IRX=log(\\$L_\\{FIR\\}/L_\\{1600\\}\\$)) to the line-of-sight dust column (\\${\\textbackslash}propto{\\textbackslash}beta\\$). We find systematically bluer UV continuum spectral slopes (\\${\\textbackslash}beta\\$) compared to previous low-resolution ground-based measurements, which relieves some of the tension between models of dust attenuation and observations at high redshifts. While most of the galaxies are consistent with local starburst or Small Magellanic cloud like dust properties, we find galaxies with low IRX values and a large range in \\${\\textbackslash}beta\\$ that cannot be explained by models of a uniform dust distribution well mixed with stars. A stacking analysis of Keck/DEIMOS optical spectra indicates that these galaxies are metal-poor with young stellar populations which could significantly alter their spatial dust distribution.","journal":"ArXiv e-prints","author":[{"propositions":[],"lastnames":["Barišić"],"firstnames":["Ivana"],"suffixes":[]},{"propositions":[],"lastnames":["Faisst"],"firstnames":["Andreas","L."],"suffixes":[]},{"propositions":[],"lastnames":["Capak"],"firstnames":["Peter","L."],"suffixes":[]},{"propositions":[],"lastnames":["Pavesi"],"firstnames":["Riccardo"],"suffixes":[]},{"propositions":[],"lastnames":["Riechers"],"firstnames":["Dominik","A."],"suffixes":[]},{"propositions":[],"lastnames":["Scoville"],"firstnames":["Nick","Z."],"suffixes":[]},{"propositions":[],"lastnames":["Cooke"],"firstnames":["Kevin","C."],"suffixes":[]},{"propositions":[],"lastnames":["Kartaltepe"],"firstnames":["Jeyhan","S."],"suffixes":[]},{"propositions":[],"lastnames":["Casey"],"firstnames":["Caitlin","M."],"suffixes":[]},{"propositions":[],"lastnames":["Smolčić"],"firstnames":["Vernesa"],"suffixes":[]}],"month":"July","year":"2017","keywords":"Astrophysics - Astrophysics of Galaxies","pages":"arXiv:1707.02980","bibtex":"@article{barisic_dust_2017,\n\ttitle = {Dust {Properties} of [{CII}] {Detected} z \\${\\textbackslash}sim\\$ 5.5 {Galaxies}: {New} {HST}/{WFC3} {Near}-{IR} {Observations}},\n\tvolume = {1707},\n\tshorttitle = {Dust {Properties} of [{CII}] {Detected} z \\${\\textbackslash}sim\\$ 5.5 {Galaxies}},\n\turl = {http://adsabs.harvard.edu/abs/2017arXiv170702980B},\n\tabstract = {We examine the rest-frame ultra-violet (UV) properties of 10 \n[CII]\\${\\textbackslash}lambda158{\\textbackslash},\\{{\\textbackslash}rm {\\textbackslash}mu m\\}\\$\\$-\\$detected galaxies at \\$z{\\textbackslash}sim5.5\\$ in\nCOSMOS using new HST/WFC3 near-infrared imaging. Together with\npre-existing \\$158{\\textbackslash},\\{{\\textbackslash}rm {\\textbackslash}mu m\\}-\\$continuum and [CII] line measurements by\nALMA, we study their dust attenuation properties on the IRX-\\${\\textbackslash}beta\\$\ndiagram, which connects the total dust emission (\\${\\textbackslash}propto\\$\nIRX=log(\\$L\\_\\{FIR\\}/L\\_\\{1600\\}\\$)) to the line-of-sight dust column\n(\\${\\textbackslash}propto{\\textbackslash}beta\\$). We find systematically bluer UV continuum spectral\nslopes (\\${\\textbackslash}beta\\$) compared to previous low-resolution ground-based\nmeasurements, which relieves some of the tension between models of dust\nattenuation and observations at high redshifts. While most of the\ngalaxies are consistent with local starburst or Small Magellanic cloud\nlike dust properties, we find galaxies with low IRX values and a large\nrange in \\${\\textbackslash}beta\\$ that cannot be explained by models of a uniform dust\ndistribution well mixed with stars. A stacking analysis of Keck/DEIMOS\noptical spectra indicates that these galaxies are metal-poor with young\nstellar populations which could significantly alter their spatial dust\ndistribution.},\n\tjournal = {ArXiv e-prints},\n\tauthor = {Barišić, Ivana and Faisst, Andreas L. and Capak, Peter L. and Pavesi, Riccardo and Riechers, Dominik A. and Scoville, Nick Z. and Cooke, Kevin C. and Kartaltepe, Jeyhan S. and Casey, Caitlin M. and Smolčić, Vernesa},\n\tmonth = jul,\n\tyear = {2017},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n\tpages = {arXiv:1707.02980},\n}\n\n","author_short":["Barišić, I.","Faisst, A. L.","Capak, P. L.","Pavesi, R.","Riechers, D. A.","Scoville, N. Z.","Cooke, K. C.","Kartaltepe, J. S.","Casey, C. 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