@article{rinaldi_galaxy_2021,
	title = {The galaxy starburst/main-sequence bimodality over five decades in stellar mass at z {\textasciitilde} 3-6.5},
	url = {http://arxiv.org/abs/2112.03935},
	abstract = {We study the relation between stellar mass (M*) and star formation rate (SFR) for star-forming galaxies over approximately five decades in stellar mass (5.5 {\textless}{\textasciitilde} log10(M*/Msun) {\textless}{\textasciitilde} 10.5) at z {\textasciitilde} 3-6.5. This unprecedented coverage has been possible thanks to the joint analysis of blank non-lensed fields (COSMOS/SMUVS) and cluster lensing fields (Hubble Frontier Fields) which allow us to reach very low stellar masses. Previous works have revealed the existence of a clear bimodality in the SFR-M* plane with a star-formation Main Sequence and a starburst cloud at z {\textasciitilde} 4-5. Here we show that this bimodality extends to all star-forming galaxies and is valid in the whole redshift range z {\textasciitilde} 3-6.5. We find that starbursts constitute at least 20\% of all star-forming galaxies with M* {\textgreater}{\textasciitilde} 10{\textasciicircum}9 Msun at these redshifts and reach a peak of 40\% at z=4-5. More importantly, 60\% to 90\% of the total SFR budget at these redshifts is contained in starburst galaxies, indicating that the starburst mode of star-formation is dominant at high redshifts. Almost all the low stellar-mass starbursts with log10(M*/Msun) {\textless}{\textasciitilde} 8.5 have ages comparable to the typical timescales of a starburst event, suggesting that these galaxies are being caught in the process of formation. Interestingly, galaxy formation models fail to predict the starburst/main-sequence bimodality and starbursts overall, suggesting that the starburst phenomenon may be driven by physical processes occurring at smaller scales than those probed by these models.},
	urldate = {2021-12-17},
	journal = {arXiv:2112.03935 [astro-ph]},
	author = {Rinaldi, Pierluigi and Caputi, Karina I. and van Mierlo, Sophie and Ashby, Matthew L. N. and Caminha, Gabriel B. and Iani, Edoardo},
	month = dec,
	year = {2021},
	note = {arXiv: 2112.03935},
	keywords = {Astrophysics - Astrophysics of Galaxies},
}

{"_id":"BM4nouoNtmtsnzTXT","bibbaseid":"rinaldi-caputi-vanmierlo-ashby-caminha-iani-thegalaxystarburstmainsequencebimodalityoverfivedecadesinstellarmassatztextasciitilde365-2021","author_short":["Rinaldi, P.","Caputi, K. I.","van Mierlo, S.","Ashby, M. L. N.","Caminha, G. B.","Iani, E."],"bibdata":{"bibtype":"article","type":"article","title":"The galaxy starburst/main-sequence bimodality over five decades in stellar mass at z \\textasciitilde 3-6.5","url":"http://arxiv.org/abs/2112.03935","abstract":"We study the relation between stellar mass (M*) and star formation rate (SFR) for star-forming galaxies over approximately five decades in stellar mass (5.5 \\textless\\textasciitilde log10(M*/Msun) \\textless\\textasciitilde 10.5) at z \\textasciitilde 3-6.5. This unprecedented coverage has been possible thanks to the joint analysis of blank non-lensed fields (COSMOS/SMUVS) and cluster lensing fields (Hubble Frontier Fields) which allow us to reach very low stellar masses. Previous works have revealed the existence of a clear bimodality in the SFR-M* plane with a star-formation Main Sequence and a starburst cloud at z \\textasciitilde 4-5. Here we show that this bimodality extends to all star-forming galaxies and is valid in the whole redshift range z \\textasciitilde 3-6.5. We find that starbursts constitute at least 20% of all star-forming galaxies with M* \\textgreater\\textasciitilde 10\\textasciicircum9 Msun at these redshifts and reach a peak of 40% at z=4-5. More importantly, 60% to 90% of the total SFR budget at these redshifts is contained in starburst galaxies, indicating that the starburst mode of star-formation is dominant at high redshifts. Almost all the low stellar-mass starbursts with log10(M*/Msun) \\textless\\textasciitilde 8.5 have ages comparable to the typical timescales of a starburst event, suggesting that these galaxies are being caught in the process of formation. Interestingly, galaxy formation models fail to predict the starburst/main-sequence bimodality and starbursts overall, suggesting that the starburst phenomenon may be driven by physical processes occurring at smaller scales than those probed by these models.","urldate":"2021-12-17","journal":"arXiv:2112.03935 [astro-ph]","author":[{"propositions":[],"lastnames":["Rinaldi"],"firstnames":["Pierluigi"],"suffixes":[]},{"propositions":[],"lastnames":["Caputi"],"firstnames":["Karina","I."],"suffixes":[]},{"propositions":["van"],"lastnames":["Mierlo"],"firstnames":["Sophie"],"suffixes":[]},{"propositions":[],"lastnames":["Ashby"],"firstnames":["Matthew","L.","N."],"suffixes":[]},{"propositions":[],"lastnames":["Caminha"],"firstnames":["Gabriel","B."],"suffixes":[]},{"propositions":[],"lastnames":["Iani"],"firstnames":["Edoardo"],"suffixes":[]}],"month":"December","year":"2021","note":"arXiv: 2112.03935","keywords":"Astrophysics - Astrophysics of Galaxies","bibtex":"@article{rinaldi_galaxy_2021,\n\ttitle = {The galaxy starburst/main-sequence bimodality over five decades in stellar mass at z {\\textasciitilde} 3-6.5},\n\turl = {http://arxiv.org/abs/2112.03935},\n\tabstract = {We study the relation between stellar mass (M*) and star formation rate (SFR) for star-forming galaxies over approximately five decades in stellar mass (5.5 {\\textless}{\\textasciitilde} log10(M*/Msun) {\\textless}{\\textasciitilde} 10.5) at z {\\textasciitilde} 3-6.5. This unprecedented coverage has been possible thanks to the joint analysis of blank non-lensed fields (COSMOS/SMUVS) and cluster lensing fields (Hubble Frontier Fields) which allow us to reach very low stellar masses. Previous works have revealed the existence of a clear bimodality in the SFR-M* plane with a star-formation Main Sequence and a starburst cloud at z {\\textasciitilde} 4-5. Here we show that this bimodality extends to all star-forming galaxies and is valid in the whole redshift range z {\\textasciitilde} 3-6.5. We find that starbursts constitute at least 20\\% of all star-forming galaxies with M* {\\textgreater}{\\textasciitilde} 10{\\textasciicircum}9 Msun at these redshifts and reach a peak of 40\\% at z=4-5. More importantly, 60\\% to 90\\% of the total SFR budget at these redshifts is contained in starburst galaxies, indicating that the starburst mode of star-formation is dominant at high redshifts. Almost all the low stellar-mass starbursts with log10(M*/Msun) {\\textless}{\\textasciitilde} 8.5 have ages comparable to the typical timescales of a starburst event, suggesting that these galaxies are being caught in the process of formation. Interestingly, galaxy formation models fail to predict the starburst/main-sequence bimodality and starbursts overall, suggesting that the starburst phenomenon may be driven by physical processes occurring at smaller scales than those probed by these models.},\n\turldate = {2021-12-17},\n\tjournal = {arXiv:2112.03935 [astro-ph]},\n\tauthor = {Rinaldi, Pierluigi and Caputi, Karina I. and van Mierlo, Sophie and Ashby, Matthew L. N. and Caminha, Gabriel B. and Iani, Edoardo},\n\tmonth = dec,\n\tyear = {2021},\n\tnote = {arXiv: 2112.03935},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n}\n\n","author_short":["Rinaldi, P.","Caputi, K. I.","van Mierlo, S.","Ashby, M. L. N.","Caminha, G. B.","Iani, E."],"key":"rinaldi_galaxy_2021","id":"rinaldi_galaxy_2021","bibbaseid":"rinaldi-caputi-vanmierlo-ashby-caminha-iani-thegalaxystarburstmainsequencebimodalityoverfivedecadesinstellarmassatztextasciitilde365-2021","role":"author","urls":{"Paper":"http://arxiv.org/abs/2112.03935"},"keyword":["Astrophysics - Astrophysics of Galaxies"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies"],"search_terms":["galaxy","starburst","main","sequence","bimodality","over","five","decades","stellar","mass","textasciitilde","rinaldi","caputi","van mierlo","ashby","caminha","iani"],"title":"The galaxy starburst/main-sequence bimodality over five decades in stellar mass at z \\textasciitilde 3-6.5","year":2021}