The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years

The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years. Zavala, J. A., Casey, C. M., Manning, S. M., Aravena, M., Bethermin, M., Caputi, K. I., Clements, D. L., da Cunha, E., Drew, P., Finkelstein, S. L., Fujimoto, S., Hayward, C., Hodge, J., Kartaltepe, J. S., Knudsen, K., Koekemoer, A. M., Long, A. S., Magdis, G. E., Man, A. W. S., Popping, G., Sanders, D., Scoville, N., Sheth, K., Staguhn, J., Toft, S., Treister, E., Vieira, J. D., & Yun, M. S. arXiv e-prints, 2101:arXiv:2101.04734, January, 2021.

Paper abstract bibtex

We present the first results from the 2mm Mapping Obscuration to Reionization (MORA) survey, the largest ALMA contiguous blank-field survey to-date with a total area of 184 sq. arcmin and the only at 2mm to search for dusty star-forming galaxies (DSFGs). We use the 13 sources detected above 5sigma to estimate the first ALMA galaxy number counts at this wavelength. These number counts are then combined with the state-of-the-art galaxy number counts at 1.2mm and 3mm and with a backward evolution model to place constraints on the evolution of the IR luminosity function and dust-obscured star formation in the last 13 billion years. Our results suggest a steep redshift evolution on the space density of DSFGs and confirm the flattening of the IR luminosity function at faint luminosities, with a slope of \${\textbackslash}alpha_\{LF\} = -0.42{\textasciicircum}\{+0.02\}_\{-0.04\}\$. We conclude that the dust-obscured component, which peaks at z=2-2.5, has dominated the cosmic history of star formation for the past \textasciitilde12 billion years, back to z\textasciitilde4. At z=5, the dust-obscured star formation is estimated to be \textasciitilde35% of the total star formation rate density and decreases to 25%-20% at z=6-7, implying a minor contribution of dust-enshrouded star formation in the first billion years of the Universe. With the dust-obscured star formation history constrained up to the end of the epoch of reionization, our results provide a benchmark to test galaxy formation models, to study the galaxy mass assembly history, and to understand the dust and metal enrichment of the Universe at early times.

@article{zavala_evolution_2021,
	title = {The {Evolution} of the {IR} {Luminosity} {Function} and {Dust}-obscured {Star} {Formation} in the {Last} 13 {Billion} {Years}},
	volume = {2101},
	url = {http://adsabs.harvard.edu/abs/2021arXiv210104734Z},
	abstract = {We present the first results from the 2mm Mapping Obscuration to 
Reionization (MORA) survey, the largest ALMA contiguous blank-field
survey to-date with a total area of 184 sq. arcmin and the only at 2mm
to search for dusty star-forming galaxies (DSFGs). We use the 13 sources
detected above 5sigma to estimate the first ALMA galaxy number counts at
this wavelength. These number counts are then combined with the
state-of-the-art galaxy number counts at 1.2mm and 3mm and with a
backward evolution model to place constraints on the evolution of the IR
luminosity function and dust-obscured star formation in the last 13
billion years. Our results suggest a steep redshift evolution on the
space density of DSFGs and confirm the flattening of the IR luminosity
function at faint luminosities, with a slope of \${\textbackslash}alpha\_\{LF\} =
-0.42{\textasciicircum}\{+0.02\}\_\{-0.04\}\$. We conclude that the dust-obscured component,
which peaks at z=2-2.5, has dominated the cosmic history of star
formation for the past {\textasciitilde}12 billion years, back to z{\textasciitilde}4. At z=5, the
dust-obscured star formation is estimated to be {\textasciitilde}35\% of the total star
formation rate density and decreases to 25\%-20\% at z=6-7, implying a
minor contribution of dust-enshrouded star formation in the first
billion years of the Universe. With the dust-obscured star formation
history constrained up to the end of the epoch of reionization, our
results provide a benchmark to test galaxy formation models, to study
the galaxy mass assembly history, and to understand the dust and metal
enrichment of the Universe at early times.},
	urldate = {2021-02-03},
	journal = {arXiv e-prints},
	author = {Zavala, J. A. and Casey, C. M. and Manning, S. M. and Aravena, M. and Bethermin, M. and Caputi, K. I. and Clements, D. L. and da Cunha, E. and Drew, P. and Finkelstein, S. L. and Fujimoto, S. and Hayward, C. and Hodge, J. and Kartaltepe, J. S. and Knudsen, K. and Koekemoer, A. M. and Long, A. S. and Magdis, G. E. and Man, A. W. S. and Popping, G. and Sanders, D. and Scoville, N. and Sheth, K. and Staguhn, J. and Toft, S. and Treister, E. and Vieira, J. D. and Yun, M. S.},
	month = jan,
	year = {2021},
	keywords = {Astrophysics - Astrophysics of Galaxies},
	pages = {arXiv:2101.04734},
}

Downloads: 0

{"_id":"2AjJ8rsxmSCBbajH7","bibbaseid":"zavala-casey-manning-aravena-bethermin-caputi-clements-dacunha-etal-theevolutionoftheirluminosityfunctionanddustobscuredstarformationinthelast13billionyears-2021","author_short":["Zavala, J. A.","Casey, C. M.","Manning, S. M.","Aravena, M.","Bethermin, M.","Caputi, K. I.","Clements, D. L.","da Cunha, E.","Drew, P.","Finkelstein, S. L.","Fujimoto, S.","Hayward, C.","Hodge, J.","Kartaltepe, J. S.","Knudsen, K.","Koekemoer, A. M.","Long, A. S.","Magdis, G. E.","Man, A. W. S.","Popping, G.","Sanders, D.","Scoville, N.","Sheth, K.","Staguhn, J.","Toft, S.","Treister, E.","Vieira, J. D.","Yun, M. S."],"bibdata":{"bibtype":"article","type":"article","title":"The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years","volume":"2101","url":"http://adsabs.harvard.edu/abs/2021arXiv210104734Z","abstract":"We present the first results from the 2mm Mapping Obscuration to Reionization (MORA) survey, the largest ALMA contiguous blank-field survey to-date with a total area of 184 sq. arcmin and the only at 2mm to search for dusty star-forming galaxies (DSFGs). We use the 13 sources detected above 5sigma to estimate the first ALMA galaxy number counts at this wavelength. These number counts are then combined with the state-of-the-art galaxy number counts at 1.2mm and 3mm and with a backward evolution model to place constraints on the evolution of the IR luminosity function and dust-obscured star formation in the last 13 billion years. Our results suggest a steep redshift evolution on the space density of DSFGs and confirm the flattening of the IR luminosity function at faint luminosities, with a slope of \\${\\textbackslash}alpha_\\{LF\\} = -0.42{\\textasciicircum}\\{+0.02\\}_\\{-0.04\\}\\$. We conclude that the dust-obscured component, which peaks at z=2-2.5, has dominated the cosmic history of star formation for the past \\textasciitilde12 billion years, back to z\\textasciitilde4. At z=5, the dust-obscured star formation is estimated to be \\textasciitilde35% of the total star formation rate density and decreases to 25%-20% at z=6-7, implying a minor contribution of dust-enshrouded star formation in the first billion years of the Universe. With the dust-obscured star formation history constrained up to the end of the epoch of reionization, our results provide a benchmark to test galaxy formation models, to study the galaxy mass assembly history, and to understand the dust and metal enrichment of the Universe at early times.","urldate":"2021-02-03","journal":"arXiv e-prints","author":[{"propositions":[],"lastnames":["Zavala"],"firstnames":["J.","A."],"suffixes":[]},{"propositions":[],"lastnames":["Casey"],"firstnames":["C.","M."],"suffixes":[]},{"propositions":[],"lastnames":["Manning"],"firstnames":["S.","M."],"suffixes":[]},{"propositions":[],"lastnames":["Aravena"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Bethermin"],"firstnames":["M."],"suffixes":[]},{"propositions":[],"lastnames":["Caputi"],"firstnames":["K.","I."],"suffixes":[]},{"propositions":[],"lastnames":["Clements"],"firstnames":["D.","L."],"suffixes":[]},{"propositions":["da"],"lastnames":["Cunha"],"firstnames":["E."],"suffixes":[]},{"propositions":[],"lastnames":["Drew"],"firstnames":["P."],"suffixes":[]},{"propositions":[],"lastnames":["Finkelstein"],"firstnames":["S.","L."],"suffixes":[]},{"propositions":[],"lastnames":["Fujimoto"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Hayward"],"firstnames":["C."],"suffixes":[]},{"propositions":[],"lastnames":["Hodge"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Kartaltepe"],"firstnames":["J.","S."],"suffixes":[]},{"propositions":[],"lastnames":["Knudsen"],"firstnames":["K."],"suffixes":[]},{"propositions":[],"lastnames":["Koekemoer"],"firstnames":["A.","M."],"suffixes":[]},{"propositions":[],"lastnames":["Long"],"firstnames":["A.","S."],"suffixes":[]},{"propositions":[],"lastnames":["Magdis"],"firstnames":["G.","E."],"suffixes":[]},{"propositions":[],"lastnames":["Man"],"firstnames":["A.","W.","S."],"suffixes":[]},{"propositions":[],"lastnames":["Popping"],"firstnames":["G."],"suffixes":[]},{"propositions":[],"lastnames":["Sanders"],"firstnames":["D."],"suffixes":[]},{"propositions":[],"lastnames":["Scoville"],"firstnames":["N."],"suffixes":[]},{"propositions":[],"lastnames":["Sheth"],"firstnames":["K."],"suffixes":[]},{"propositions":[],"lastnames":["Staguhn"],"firstnames":["J."],"suffixes":[]},{"propositions":[],"lastnames":["Toft"],"firstnames":["S."],"suffixes":[]},{"propositions":[],"lastnames":["Treister"],"firstnames":["E."],"suffixes":[]},{"propositions":[],"lastnames":["Vieira"],"firstnames":["J.","D."],"suffixes":[]},{"propositions":[],"lastnames":["Yun"],"firstnames":["M.","S."],"suffixes":[]}],"month":"January","year":"2021","keywords":"Astrophysics - Astrophysics of Galaxies","pages":"arXiv:2101.04734","bibtex":"@article{zavala_evolution_2021,\n\ttitle = {The {Evolution} of the {IR} {Luminosity} {Function} and {Dust}-obscured {Star} {Formation} in the {Last} 13 {Billion} {Years}},\n\tvolume = {2101},\n\turl = {http://adsabs.harvard.edu/abs/2021arXiv210104734Z},\n\tabstract = {We present the first results from the 2mm Mapping Obscuration to \nReionization (MORA) survey, the largest ALMA contiguous blank-field\nsurvey to-date with a total area of 184 sq. arcmin and the only at 2mm\nto search for dusty star-forming galaxies (DSFGs). We use the 13 sources\ndetected above 5sigma to estimate the first ALMA galaxy number counts at\nthis wavelength. These number counts are then combined with the\nstate-of-the-art galaxy number counts at 1.2mm and 3mm and with a\nbackward evolution model to place constraints on the evolution of the IR\nluminosity function and dust-obscured star formation in the last 13\nbillion years. Our results suggest a steep redshift evolution on the\nspace density of DSFGs and confirm the flattening of the IR luminosity\nfunction at faint luminosities, with a slope of \\${\\textbackslash}alpha\\_\\{LF\\} =\n-0.42{\\textasciicircum}\\{+0.02\\}\\_\\{-0.04\\}\\$. We conclude that the dust-obscured component,\nwhich peaks at z=2-2.5, has dominated the cosmic history of star\nformation for the past {\\textasciitilde}12 billion years, back to z{\\textasciitilde}4. At z=5, the\ndust-obscured star formation is estimated to be {\\textasciitilde}35\\% of the total star\nformation rate density and decreases to 25\\%-20\\% at z=6-7, implying a\nminor contribution of dust-enshrouded star formation in the first\nbillion years of the Universe. With the dust-obscured star formation\nhistory constrained up to the end of the epoch of reionization, our\nresults provide a benchmark to test galaxy formation models, to study\nthe galaxy mass assembly history, and to understand the dust and metal\nenrichment of the Universe at early times.},\n\turldate = {2021-02-03},\n\tjournal = {arXiv e-prints},\n\tauthor = {Zavala, J. A. and Casey, C. M. and Manning, S. M. and Aravena, M. and Bethermin, M. and Caputi, K. I. and Clements, D. L. and da Cunha, E. and Drew, P. and Finkelstein, S. L. and Fujimoto, S. and Hayward, C. and Hodge, J. and Kartaltepe, J. S. and Knudsen, K. and Koekemoer, A. M. and Long, A. S. and Magdis, G. E. and Man, A. W. S. and Popping, G. and Sanders, D. and Scoville, N. and Sheth, K. and Staguhn, J. and Toft, S. and Treister, E. and Vieira, J. D. and Yun, M. S.},\n\tmonth = jan,\n\tyear = {2021},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n\tpages = {arXiv:2101.04734},\n}\n\n","author_short":["Zavala, J. A.","Casey, C. M.","Manning, S. M.","Aravena, M.","Bethermin, M.","Caputi, K. I.","Clements, D. L.","da Cunha, E.","Drew, P.","Finkelstein, S. L.","Fujimoto, S.","Hayward, C.","Hodge, J.","Kartaltepe, J. S.","Knudsen, K.","Koekemoer, A. M.","Long, A. S.","Magdis, G. E.","Man, A. W. S.","Popping, G.","Sanders, D.","Scoville, N.","Sheth, K.","Staguhn, J.","Toft, S.","Treister, E.","Vieira, J. D.","Yun, M. S."],"key":"zavala_evolution_2021","id":"zavala_evolution_2021","bibbaseid":"zavala-casey-manning-aravena-bethermin-caputi-clements-dacunha-etal-theevolutionoftheirluminosityfunctionanddustobscuredstarformationinthelast13billionyears-2021","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2021arXiv210104734Z"},"keyword":["Astrophysics - Astrophysics of Galaxies"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies"],"search_terms":["evolution","luminosity","function","dust","obscured","star","formation","last","billion","years","zavala","casey","manning","aravena","bethermin","caputi","clements","da cunha","drew","finkelstein","fujimoto","hayward","hodge","kartaltepe","knudsen","koekemoer","long","magdis","man","popping","sanders","scoville","sheth","staguhn","toft","treister","vieira","yun"],"title":"The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years","year":2021}