Search Publications
Mapping the Milky Way Disk with Gaia DR3: 3D Extended Kinematic Maps and Rotation Curve to ≈30 kpc
Wang, Hai-Feng; Sylos Labini, Francesco; Chrobáková, Žofia +1 more
We apply a statistical deconvolution of the parallax errors based on Lucy's inversion method (LIM) to the Gaia DR3 sources to measure their 3D velocity components in the range of Galactocentric distances R between 8 and 30 kpc with their corresponding errors and rms values. We find results that are consistent with those obtained by applying LIM to…
Early Results from GLASS-JWST. XVIII. A First Morphological Atlas of the 1 < z < 5 Universe in the Rest-frame Optical
Vulcani, B.; Bradač, M.; Treu, T. +21 more
We present a rest-frame optical morphological analysis of galaxies observed with the NIRCam imager on the James Webb Space Telescope (JWST) as part of the GLASS-JWST Early Release Science program. We select 388 sources at redshifts 0.8 < z < 5.4 and use the seven 0.9-5 µm NIRCam filters to generate rest-frame gri composite color images…
PHANGS-JWST First Results: Destruction of the PAH Molecules in H II Regions Probed by JWST and MUSE
Sandstrom, Karin M.; Kruijssen, J. M. Diederik; Leroy, Adam K. +30 more
Polycyclic aromatic hydrocarbons (PAHs) play a critical role in the reprocessing of stellar radiation and balancing the heating and cooling processes in the interstellar medium but appear to be destroyed in H II regions. However, the mechanisms driving their destruction are still not completely understood. Using PHANGS-JWST and PHANGS-MUSE observa…
EIGER. III. JWST/NIRCam Observations of the Ultraluminous High-redshift Quasar J0100+2802
Simcoe, Robert A.; Kashino, Daichi; Eilers, Anna-Christina +6 more
We present the first rest-frame optical spectrum of a high-redshift quasar observed with JWST/NIRCam in Wide Field Slitless mode. The observed quasar, J0100+2802, is the most luminous quasar known at z > 6. We measure the mass of the central supermassive black hole (SMBH) by means of the rest-frame optical H β emission line, and find consistent…
The Identification of a Dusty Multiarm Spiral Galaxy at z = 3.06 with JWST and ALMA
Fan, Xiaohui; Cai, Zheng; Lin, Xiaojing +13 more
Spiral arms serve crucial purposes in star formation and galaxy evolution. In this paper, we report the identification of "A2744-DSG-z3," a dusty, multiarm spiral galaxy at z = 3.059 using the James Webb Space Telescope (JWST) NIRISS imaging and grism spectroscopy. A2744-DSG-z3 was discovered as a gravitationally lensed submillimeter galaxy with t…
Six More Ultra-faint Milky Way Companions Discovered in the DECam Local Volume Exploration Survey
Geha, M.; Li, T. S.; Walker, A. R. +31 more
We report the discovery of six ultra-faint Milky Way satellites identified through matched-filter searches conducted using Dark Energy Camera (DECam) data processed as part of the second data release of the DECam Local Volume Exploration (DELVE) survey. Leveraging deep Gemini/GMOS-N imaging (for four candidates) as well as follow-up DECam imaging …
Alleviating the Need for Exponential Evolution of JWST Galaxies in 1010 M ⊙ Haloes at z > 10 by a Modified ΛCDM Power Spectrum
Loeb, Abraham; Padmanabhan, Hamsa
We infer the evolution of the UV luminosities of galaxies in haloes of masses 1010-1011 M ⊙ in the redshift range of z ~ 9-16 from the recent JWST data. Within the standard ΛCDM cosmological model, it is found that the average luminosities in this halo mass range show an exponential evolution with redshift, in exce…
High-redshift JWST Observations and Primordial Non-Gaussianity
Biagetti, Matteo; Franciolini, Gabriele; Riotto, Antonio
Several bright and massive galaxy candidates at high redshifts have been recently observed by the James Webb Space Telescope. Such early massive galaxies seem difficult to reconcile with standard Λ cold dark matter model predictions. We discuss under which circumstances such observed massive galaxy candidates can be explained by introducing primor…
CEERS Key Paper. II. A First Look at the Resolved Host Properties of AGN at 3 < z < 5 with JWST
Papovich, Casey; Yang, Guang; Finkelstein, Steven L. +57 more
We report on the host properties of five X-ray-luminous active galactic nuclei (AGN) identified at 3 < z < 5 in the first epoch of imaging from the Cosmic Evolution Early Release Science Survey. Each galaxy has been imaged with the JWST Near-Infrared Camera, which provides rest-frame optical morphologies at these redshifts. We also derive st…
Early Results from GLASS-JWST. XVI. Discovering a Bluer z 4-7 Universe through UV Slopes
Santini, Paola; Calabrò, Antonello; Castellano, Marco +20 more
We use the GLASS-JWST Early Release Science NIRCam parallel observations to provide a first view of the UV continuum properties of NIRCam/F444W selected galaxies at 4 < z < 7. By combining multiwavelength NIRCam observations, we constrain the UV continuum slope for a sample of 401 galaxies with stringent quality controls. We find that >99…