@incollection{bait_probing_2026,
	title = {Probing the {Nature} of {Lyman} {Continuum} {Emitting} and {Low}-metallicity {Galaxies} {Using} the {SKA}},
	copyright = {Creative Commons Attribution Non Commercial Share Alike 4.0 International},
	url = {https://arxiv.org/abs/2606.26355},
	doi = {10.48550/ARXIV.2606.26355},
	abstract = {The sources responsible for cosmic reionization remain a key open question in observational cosmology. Recent JWST results increasingly suggest that low-mass star-forming galaxies (e.g., compact starbursts and strong emission-line systems) dominated the ionizing photon budget. The physical mechanisms driving Lyman continuum (LyC) photon escape, including supernova, radiative, and cosmic-ray feedback, and the origin of extreme ionization conditions, remain poorly understood. Radio continuum (RC) emission, a well-established star-formation tracer in normal galaxies, is not yet well characterized in such extreme systems, which exhibit high star-formation rate densities, young stellar populations, low metallicity, and hard ionizing spectra.
 Targeted mid-frequency (\$1-15\$,GHz) observations with SKA precursors have begun probing low-redshift LyC emitters (LCEs), revealing links between RC spectral index, LyC escape fraction, ionization conditions, metallicity, and SFR surface density, alongwith deviations from the canonical RC\$-\$SFR relation. The higher sensitivity of the SKA Array Assemblies across Bands \${\textbackslash}sim 1-5\$ will enable systematic studies of fainter LCEs and low-mass, metal-poor galaxies. We present number density predictions for LCE candidates at \$z {\textbackslash}sim 1\$-\$3\$, showing that SKA-Mid surveys can assemble samples of \${\textbackslash}sim10-100\$ candidates per square degree over a star-formation rate range of \$1-100\$,\$M\_\{{\textbackslash}odot\}\$yr\${\textasciicircum}\{-1\}\$, making a dedicated SKA Large Programme scientifically feasible.
 With the full SKA, in synergy with JWST and next generation telescopes, multi-wavelength analyses will robustly constrain the thermal and non-thermal RC components and cosmic-ray energy spectra, providing critical insights into the feedback processes governing LyC escape and star formation in the early universe.},
	language = {en},
	urldate = {2026-07-06},
	publisher = {arXiv},
	author = {Bait, Omkar and Schaerer, Daniel and Sargent, Mark},
	month = jun,
	year = {2026},
	note = {Version Number: 1},
	keywords = {Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences},
}

{"_id":"azYBrpnSLp3fyT9Kd","bibbaseid":"bait-schaerer-sargent-probingthenatureoflymancontinuumemittingandlowmetallicitygalaxiesusingtheska-2026","author_short":["Bait, O.","Schaerer, D.","Sargent, M."],"bibdata":{"bibtype":"incollection","type":"incollection","title":"Probing the Nature of Lyman Continuum Emitting and Low-metallicity Galaxies Using the SKA","copyright":"Creative Commons Attribution Non Commercial Share Alike 4.0 International","url":"https://arxiv.org/abs/2606.26355","doi":"10.48550/ARXIV.2606.26355","abstract":"The sources responsible for cosmic reionization remain a key open question in observational cosmology. Recent JWST results increasingly suggest that low-mass star-forming galaxies (e.g., compact starbursts and strong emission-line systems) dominated the ionizing photon budget. The physical mechanisms driving Lyman continuum (LyC) photon escape, including supernova, radiative, and cosmic-ray feedback, and the origin of extreme ionization conditions, remain poorly understood. Radio continuum (RC) emission, a well-established star-formation tracer in normal galaxies, is not yet well characterized in such extreme systems, which exhibit high star-formation rate densities, young stellar populations, low metallicity, and hard ionizing spectra. Targeted mid-frequency ($1-15$,GHz) observations with SKA precursors have begun probing low-redshift LyC emitters (LCEs), revealing links between RC spectral index, LyC escape fraction, ionization conditions, metallicity, and SFR surface density, alongwith deviations from the canonical RC$-$SFR relation. The higher sensitivity of the SKA Array Assemblies across Bands ${\\}sim 1-5$ will enable systematic studies of fainter LCEs and low-mass, metal-poor galaxies. We present number density predictions for LCE candidates at $z {\\}sim 1$-$3$, showing that SKA-Mid surveys can assemble samples of ${\\}sim10-100$ candidates per square degree over a star-formation rate range of $1-100$,$M_\\{{\\}odot\\}$yr${\\textasciicircum}\\{-1\\}$, making a dedicated SKA Large Programme scientifically feasible. With the full SKA, in synergy with JWST and next generation telescopes, multi-wavelength analyses will robustly constrain the thermal and non-thermal RC components and cosmic-ray energy spectra, providing critical insights into the feedback processes governing LyC escape and star formation in the early universe.","language":"en","urldate":"2026-07-06","publisher":"arXiv","author":[{"propositions":[],"lastnames":["Bait"],"firstnames":["Omkar"],"suffixes":[]},{"propositions":[],"lastnames":["Schaerer"],"firstnames":["Daniel"],"suffixes":[]},{"propositions":[],"lastnames":["Sargent"],"firstnames":["Mark"],"suffixes":[]}],"month":"June","year":"2026","note":"Version Number: 1","keywords":"Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences","bibtex":"@incollection{bait_probing_2026,\n\ttitle = {Probing the {Nature} of {Lyman} {Continuum} {Emitting} and {Low}-metallicity {Galaxies} {Using} the {SKA}},\n\tcopyright = {Creative Commons Attribution Non Commercial Share Alike 4.0 International},\n\turl = {https://arxiv.org/abs/2606.26355},\n\tdoi = {10.48550/ARXIV.2606.26355},\n\tabstract = {The sources responsible for cosmic reionization remain a key open question in observational cosmology. Recent JWST results increasingly suggest that low-mass star-forming galaxies (e.g., compact starbursts and strong emission-line systems) dominated the ionizing photon budget. The physical mechanisms driving Lyman continuum (LyC) photon escape, including supernova, radiative, and cosmic-ray feedback, and the origin of extreme ionization conditions, remain poorly understood. Radio continuum (RC) emission, a well-established star-formation tracer in normal galaxies, is not yet well characterized in such extreme systems, which exhibit high star-formation rate densities, young stellar populations, low metallicity, and hard ionizing spectra.\n Targeted mid-frequency (\\$1-15\\$,GHz) observations with SKA precursors have begun probing low-redshift LyC emitters (LCEs), revealing links between RC spectral index, LyC escape fraction, ionization conditions, metallicity, and SFR surface density, alongwith deviations from the canonical RC\\$-\\$SFR relation. The higher sensitivity of the SKA Array Assemblies across Bands \\${\\textbackslash}sim 1-5\\$ will enable systematic studies of fainter LCEs and low-mass, metal-poor galaxies. We present number density predictions for LCE candidates at \\$z {\\textbackslash}sim 1\\$-\\$3\\$, showing that SKA-Mid surveys can assemble samples of \\${\\textbackslash}sim10-100\\$ candidates per square degree over a star-formation rate range of \\$1-100\\$,\\$M\\_\\{{\\textbackslash}odot\\}\\$yr\\${\\textasciicircum}\\{-1\\}\\$, making a dedicated SKA Large Programme scientifically feasible.\n With the full SKA, in synergy with JWST and next generation telescopes, multi-wavelength analyses will robustly constrain the thermal and non-thermal RC components and cosmic-ray energy spectra, providing critical insights into the feedback processes governing LyC escape and star formation in the early universe.},\n\tlanguage = {en},\n\turldate = {2026-07-06},\n\tpublisher = {arXiv},\n\tauthor = {Bait, Omkar and Schaerer, Daniel and Sargent, Mark},\n\tmonth = jun,\n\tyear = {2026},\n\tnote = {Version Number: 1},\n\tkeywords = {Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences},\n}\n\n\n\n\n\n\n\n\n\n\n\n","author_short":["Bait, O.","Schaerer, D.","Sargent, M."],"key":"bait_probing_2026","id":"bait_probing_2026","bibbaseid":"bait-schaerer-sargent-probingthenatureoflymancontinuumemittingandlowmetallicitygalaxiesusingtheska-2026","role":"author","urls":{"Paper":"https://arxiv.org/abs/2606.26355"},"keyword":["Astrophysics of Galaxies (astro-ph.GA)","FOS: Physical sciences"],"metadata":{"authorlinks":{}},"downloads":0},"bibtype":"incollection","biburl":"https://bibbase.org/zotero-group/pratikmhatre/5933976","dataSources":["yJr5AAtJ5Sz3Q4WT4"],"keywords":["astrophysics of galaxies (astro-ph.ga)","fos: physical sciences"],"search_terms":["probing","nature","lyman","continuum","emitting","low","metallicity","galaxies","using","ska","bait","schaerer","sargent"],"title":"Probing the Nature of Lyman Continuum Emitting and Low-metallicity Galaxies Using the SKA","year":2026}