%0 Generic %1 neufeld2021relics %A Neufeld, Chloe %A Strait, Victoria %A Bradač, Maruša %A Lemaux, Brian C. %A Coe, Dan %A Yang, Lilan %A Treu, Tommaso %A Zitrin, Adi %A Nonino, Mario %A Bradley, Larry %A Sharon, Keren %D 2021 %K library %T RELICS: Small Lensed $z\geq5.5$ Galaxies Selected as Potential Lyman Continuum Leakers %U http://arxiv.org/abs/2111.14882 %X We present size measurements of 78 high-redshift ($z5.5$) galaxy candidates from the Reionisation Lensing Cluster Survey (RELICS). These distant galaxies are well-resolved due to the gravitational lensing power of foreground galaxy clusters, imaged by the Hubble Space Telescope (HST) and the Spitzer Space Telescope. We compute sizes using the forward-modeling code Lenstruction and account for magnification using public lens models. The resulting size-magnitude measurements confirm the existence of many small ($R_eff<200$ pc) galaxies in the early universe, in agreement with previous studies. In addition, we highlight compact and highly star-forming sources as possible Lyman continuum leaker candidates with high inferred OIII+H$\beta$ that could be major contributors to the process of reionisation. Future spectroscopic follow-up of these compact galaxies (e.g., with the James Webb Space Telescope) will further clarify their role in reionisation and the physics of early star formation.

@misc{neufeld2021relics, abstract = {We present size measurements of 78 high-redshift ($z\geq 5.5$) galaxy candidates from the Reionisation Lensing Cluster Survey (RELICS). These distant galaxies are well-resolved due to the gravitational lensing power of foreground galaxy clusters, imaged by the Hubble Space Telescope (HST) and the Spitzer Space Telescope. We compute sizes using the forward-modeling code Lenstruction and account for magnification using public lens models. The resulting size-magnitude measurements confirm the existence of many small ($R_{\rm{eff}}<200$ pc) galaxies in the early universe, in agreement with previous studies. In addition, we highlight compact and highly star-forming sources as possible Lyman continuum leaker candidates with high inferred [OIII]+H$\beta$ that could be major contributors to the process of reionisation. Future spectroscopic follow-up of these compact galaxies (e.g., with the James Webb Space Telescope) will further clarify their role in reionisation and the physics of early star formation.}, added-at = {2021-12-01T06:52:46.000+0100}, author = {Neufeld, Chloe and Strait, Victoria and Bradač, Maruša and Lemaux, Brian C. and Coe, Dan and Yang, Lilan and Treu, Tommaso and Zitrin, Adi and Nonino, Mario and Bradley, Larry and Sharon, Keren}, biburl = {https://www.bibsonomy.org/bibtex/2d120dbe32a706647fb317220a5ae66f5/gpkulkarni}, description = {RELICS: Small Lensed $z\geq5.5$ Galaxies Selected as Potential Lyman Continuum Leakers}, interhash = {10a83456683d2c37ed6ef14c6df54d78}, intrahash = {d120dbe32a706647fb317220a5ae66f5}, keywords = {library}, note = {cite arxiv:2111.14882}, timestamp = {2021-12-01T06:52:46.000+0100}, title = {RELICS: Small Lensed $z\geq5.5$ Galaxies Selected as Potential Lyman Continuum Leakers}, url = {http://arxiv.org/abs/2111.14882}, year = 2021 }