Results 71 to 80 of about 4,582 (217)

Chemical Evolution of the Universe and its Consequences for Gravitational‐Wave Astrophysics

open access: yesAnnalen der Physik, Volume 536, Issue 2, February 2024.
Population properties of double compact object mergers (especially binary black holes) are sensitive to the metallicity dependent cosmic star formation history. The uncertainty of this quantity cannot be ignored and makes the interpretation of current gravitational wave observations difficult.
Martyna Chruślińska
wiley   +1 more source

ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of z ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events

open access: yesThe Astrophysical Journal
We present JWST NIRCam imaging targeting 13 z  ~ 3 infrared-luminous ( L _IR  ∼ 5 × 10 ^12 L _⊙ ) galaxies from the ALESS survey with uniquely deep, high-resolution (0 $\mathop{.}\limits^{\unicode{x02033}}$ 08–0 $\mathop{.}\limits^{^{\prime\prime} }$ 16)
J. A. Hodge   +27 more
doaj   +1 more source

Early Results from GLASS-JWST. XXII. Rest-frame UV–Optical Spectral Properties of Lyα Emitting Galaxies at 3 < z < 6

open access: yesThe Astrophysical Journal Letters, 2023
Ly α emission is possibly the best indirect diagnostic of Lyman continuum (LyC) escape since the conditions that favor the escape of Ly α photons are often the same that allow for the escape of LyC photons.
Namrata Roy   +15 more
doaj   +1 more source

Cosmology with Gravitational Waves: A Review

open access: yesAnnalen der Physik, Volume 536, Issue 2, February 2024.
The review gives an overview of the most recent advances in gravitational‐wave (GWs) cosmology. After an in‐depth discussion of methodologies and tools for GW cosmology, it presents the latest results on measurements of standard cosmological parameters from the LIGO, Virgo, and KAGRA detections.
Simone Mastrogiovanni   +6 more
wiley   +1 more source

High-redshift radio galaxies: at the crossroads [PDF]

open access: yesNew Astronomy Reviews, 2003
12 pages, 3 figures, Invited Review to appear in "Radio galaxies: past, present & future". eds. M.
openaire   +4 more sources

Evolution of Nonparametric Morphology of Galaxies in the JWST CEERS Field at z ≃ 0.8–3.0

open access: yesThe Astrophysical Journal, 2023
Galaxy morphology is one of the most fundamental ways to describe galaxy properties, but the morphology we observe may be affected by wavelength and spatial resolution, which may introduce systematic bias when comparing galaxies at different redshift ...
Yao Yao   +5 more
doaj   +1 more source

Stratified learning: A general‐purpose statistical method for improved learning under covariate shift

open access: yesStatistical Analysis and Data Mining: The ASA Data Science Journal, Volume 17, Issue 1, February 2024.
Abstract We propose a simple, statistically principled, and theoretically justified method to improve supervised learning when the training set is not representative, a situation known as covariate shift. We build upon a well‐established methodology in causal inference and show that the effects of covariate shift can be reduced or eliminated by ...
Maximilian Autenrieth   +3 more
wiley   +1 more source

Searches for High Redshift Radio Galaxies [PDF]

open access: yes, 1998
6 pages Latex, including 3 figures, To appear in the "Observational Cosmology with the New Radio Surveys" Conference - Tenerife 13 - 15 January ...
De Breuck, C.   +3 more
openaire   +3 more sources

EPOCHS. I. The Discovery and Star-forming Properties of Galaxies in the Epoch of Reionization at 6.5 < z < 18 with PEARLS and Public JWST Data

open access: yesThe Astrophysical Journal
We present in this paper the discovery, properties, and a catalog of 1165 high-redshift 6.5  12 in our sample and describe their properties. Finally, we note a significant observed excess of galaxies compared to models at z  > 12, revealing a tension ...
Christopher J. Conselice   +34 more
doaj   +1 more source

Inkjet Printed Photonic Cellulose Nanocrystal Patterns

open access: yesAdvanced Materials, Volume 36, Issue 1, January 4, 2024.
Patterned arrays of photonic cellulose nanocrystal microfilms are prepared by inkjet printing. By dispensing directly through an oil layer, the printing and drying processes can be decoupled, which avoids the coffee stain effect and enables complex arrays to be produced.
Cyan A. Williams   +4 more
wiley   +1 more source

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