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The Cosmic Baryon Partition between the IGM and CGM in the SIMBA Simulations
Ilya S. Khrykin, Daniele Sorini, Khee-Gan Lee +1
We use the Simba suite of cosmological hydrodynamical simulations to investigate the importance of various stellar and AGN feedback mechanisms in partitioning the cosmic baryons be…
The FRB20190520B Sightline Intersects Foreground Galaxy Clusters
Khee-Gan Lee, Ilya S. Khrykin, Sunil Simha +7
The repeating fast radio burst FRB20190520B is an anomaly of the FRB population thanks to its high dispersion measure (DMpc/cc) despite its low redshift of $z_\mathrm{frb}…
Observational Evidence for Large-Scale Gas Heating in a Galaxy Protocluster at z=2.30
Chenze Dong, Khee-Gan Lee, Metin Ata +2
We report a galaxy protocluster (COSTCO-I) in the COSMOS field, where the Lyman- forest as seen in the CLAMATO IGM tomography survey does not show significant absorptio…
Searching for the sources of excess extragalactic dispersion of FRBs
Sunil Simha, Khee-Gan Lee, J. Xavier Prochaska +11
The FLIMFLAM survey is collecting spectroscopic data of field galaxies near fast radio burst (FRB) sightlines to constrain key parameters describing the distribution of matter in t…