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Constraining the AGN luminosity function from JWST with the X-ray Background
Hamsa Padmanabhan, Abraham Loeb
We predict the X-ray background (XRB) expected from the population of quasars detected by the JWST spectroscopic surveys over the redshift range . We find that the meas…
Alleviating the need for exponential evolution of JWST galaxies in 10 haloes at by a modified CDM power spectrum
Hamsa Padmanabhan, Abraham Loeb
We infer the evolution of the UV luminosities of galaxies in haloes of masses in the redshift range of from the recent JWST data. Within…
The HI intensity mapping power spectrum: insights from recent measurements
Hamsa Padmanabhan, Roy Maartens, Obinna Umeh +1
The first direct measurements of the HI intensity mapping power spectrum were recently made using the MeerKAT telescope. These measurements are on nonlinear scales, at redshifts 0.…
COMAP Early Science: VIII. A Joint Stacking Analysis with eBOSS Quasars
Delaney A. Dunne, Kieran A. Cleary, Patrick C. Breysse +22
We present a new upper limit on the cosmic molecular gas density at obtained using the first year of observations from the CO Mapping Array Project (COMAP). COMAP data…
A new limit on intergalactic magnetic fields on sub-kpc scales from fast radio bursts
Hamsa Padmanabhan, Abraham Loeb
We use the measured scattering timescales of Fast Radio Bursts (FRBs) from the CHIME catalog to derive an upper limit on the magnetic field on sub-kpc scales in the intergalactic m…