Star formation at the smallest scales: a JWST study of the clump populations in SMACS0723
We present the clump populations detected in 18 lensed galaxies at redshifts 1--8.5 within
the lensing cluster field SMACS0723. The recent JWST Early Release Observations of this
poorly known region of the sky have revealed numerous point-like sources within and
surrounding their host galaxies, undetected in the shallower Hubble Space Telescope
images. We use JWST multi-and photometry and the lensing model of this galaxy cluster to
estimate the intrinsic sizes and magnitudes of the stellar clumps. We derive optical restframe�…
the lensing cluster field SMACS0723. The recent JWST Early Release Observations of this
poorly known region of the sky have revealed numerous point-like sources within and
surrounding their host galaxies, undetected in the shallower Hubble Space Telescope
images. We use JWST multi-and photometry and the lensing model of this galaxy cluster to
estimate the intrinsic sizes and magnitudes of the stellar clumps. We derive optical restframe�…
Discovering gravitationally lensed gravitational waves: predicted rates, candidate selection, and localization with the Vera Rubin Observatory
GP Smith, A Robertson, G Mahler…�- Monthly Notices of�…, 2023 - academic.oup.com
Secure confirmation that a gravitational wave (GW) has been gravitationally lensed would
bring together these two pillars of General Relativity for the first time. This breakthrough is
challenging for many reasons, including: GW sky localization uncertainties dwarf the angular
scale of gravitational lensing, the mass and structure of gravitational lenses is diverse, the
mass function of stellar remnant compact objects is not yet well constrained, and GW
detectors do not operate continuously. We introduce a new approach that is agnostic to the�…
bring together these two pillars of General Relativity for the first time. This breakthrough is
challenging for many reasons, including: GW sky localization uncertainties dwarf the angular
scale of gravitational lensing, the mass and structure of gravitational lenses is diverse, the
mass function of stellar remnant compact objects is not yet well constrained, and GW
detectors do not operate continuously. We introduce a new approach that is agnostic to the�…