Search Publications
The Demographics, Stellar Populations, and Star Formation Histories of Fast Radio Burst Host Galaxies: Implications for the Progenitors
Kilpatrick, Charles D.; Simha, Sunil; Prochaska, J. Xavier +26 more
We present a comprehensive catalog of observations and stellar population properties for 23 highly secure host galaxies of fast radio bursts (FRBs). Our sample comprises 6 repeating FRBs and 17 apparent nonrepeaters. We present 82 new photometric and 8 new spectroscopic observations of these hosts. Using stellar population synthesis modeling and e…
The ultraviolet continuum slopes (β) of galaxies at z ≃ 8-16 from JWST and ground-based near-infrared imaging
Bowler, R. A. A.; McLure, R. J.; Dunlop, J. S. +7 more
We study the rest-frame ultraviolet (UV) continuum slopes (β) of galaxies at redshifts 8 < z < 16 (⟨z⟩ = 10), using a combination of JWST ERO and ERS NIRCam imaging and ground-based near-infrared imaging of the COSMOS field. The combination of JWST and ground-based imaging provides a wide baseline in both redshift and absolute UV magnitude (…
Redshift Evolution of Electron Density in the Interstellar Medium at z 0-9 Uncovered with JWST/NIRSpec Spectra and Line-spread Function Determinations
Ono, Yoshiaki; Ouchi, Masami; Harikane, Yuichi +5 more
We present electron densities n e in the interstellar medium (ISM) of star-forming galaxies at z = 4-9 observed by the JWST/NIRSpec GLASS, Early Release Observations, and CEERS programs. We carefully evaluate the line-spread functions of the NIRSpec instrument as a function of wavelength with the calibration data of a planetary nebula t…
JWST unveils heavily obscured (active and passive) sources up to z 13
Bisigello, Laura; Grazian, Andrea; Iani, Edoardo +5 more
A wealth of extragalactic populations completely missed at UV-optical wavelengths has been identified in the last decade, combining the deepest HST and Spitzer observations. These dark sources are thought to be dusty and star-forming systems at 3 < z < 5, and major contributors to the stellar mass build up. In this letter, we report an inves…
The MUSE Hubble Ultra Deep Field surveys: Data release II
Feltre, Anna; Bacon, Roland; Tresse, Laurence +30 more
We present the second data release of the MUSE Hubble Ultra-Deep Field surveys, which includes the deepest spectroscopic survey ever performed. The MUSE data, with their 3D content, amazing depth, wide spectral range, and excellent spatial and medium spectral resolution, are rich in information. Their location in the Hubble ultra-deep field area, …
Gaia Data Release 3. Astrometric orbit determination with Markov chain Monte Carlo and genetic algorithms: Systems with stellar, sub-stellar, and planetary mass companions
Holl, B.; Sahlmann, J.; Sozzetti, A. +8 more
Context. The astrometric discovery of sub-stellar mass companions orbiting stars is exceedingly hard due to the required sub-milliarcsecond precision, limiting the application of this technique to only a few instruments on a target-per-target basis and to the global astrometry space missions HIPPARCOS and Gaia. The third Gaia data release (Gaia DR…
A Candidate for the Least-massive Black Hole in the First 1.1 Billion Years of the Universe
Ho, Luis C.; Inoue, Akio K.; Jiang, Linhua +6 more
We report a candidate of a low-luminosity active galactic nucleus (AGN) at z = 5 that was selected from the first near-infrared images of the JWST CEERS project. This source, named CEERS-AGN-z5-1 at absolute 1450 Å magnitude M 1450 = -19.5 ± 0.3, was found via a visual selection of compact sources from a catalog of Lyman break galaxies …
A reflective, metal-rich atmosphere for GJ 1214b from its JWST phase curve
McGill, Peter; Fu, Guangwei; Stevenson, Kevin B. +30 more
There are no planets intermediate in size between Earth and Neptune in our Solar System, yet these objects are found around a substantial fraction of other stars1. Population statistics show that close-in planets in this size range bifurcate into two classes on the basis of their radii2,3. It is proposed that the group with l…
Cosmicflows-4
Anand, Gagandeep S.; Blakeslee, John P.; Tully, R. Brent +14 more
With Cosmicflows-4, distances are compiled for 55,877 galaxies gathered into 38,065 groups. Eight methodologies are employed, with the largest numbers coming from the correlations between the photometric and kinematic properties of spiral galaxies (TF) and elliptical galaxies (FP). Supernovae that arise from degenerate progenitors (type Ia SNe) ar…
Early Planet Formation in Embedded Disks (eDisk). I. Overview of the Program and First Results
Kwon, Woojin; Lai, Shih-Ping; Han, Ilseung +34 more
We present an overview of the Large Program, "Early Planet Formation in Embedded Disks (eDisk)," conducted with the Atacama Large Millimeter/submillimeter Array (ALMA). The ubiquitous detections of substructures, particularly rings and gaps, in protoplanetary disks around T Tauri stars raise the possibility that at least some planet formation may …