Results 81 to 90 of about 1,065 (171)

JWST Discovery of a Very Fast Biconical Outflow of Warm Molecular Gas in the Nearby Ultraluminous Infrared Galaxy F08572+3915 NW

open access: yesThe Astrophysical Journal
We present new James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy (ULIRG) F08572+3915 NW. These integral field spectroscopic (IFS) data reveal a kpc-scale warm-
Kylie Yui Dan   +11 more
doaj   +1 more source

New Constraints on the Evolution of the MH i−M⋆ Scaling Relation Combining CHILES and MIGHTEE-H i Data

open access: yesThe Astrophysical Journal
The improved sensitivity of interferometric facilities to the 21 cm line of atomic hydrogen (H i ) enables studies of its properties in galaxies beyond the local Universe.
Alessandro Bianchetti   +25 more
doaj   +1 more source

High-quality Extragalactic Legacy-field Monitoring (HELM) with DECam: Project Overview and First Data Release

open access: yesThe Astrophysical Journal Supplement Series
High-quality Extragalactic Legacy-field Monitoring (HELM) is a long-term observing program that photometrically monitors several well-studied extragalactic legacy fields with the Dark Energy Camera (DECam) imager on the CTIO 4 m Blanco telescope.
Ming-Yang Zhuang   +48 more
doaj   +1 more source

Denoising Diffusion Probabilistic Model for Realistic and Fast Generated Euclid-like Data for Weak Lensing Analysis

open access: yesThe Astrophysical Journal
Understanding and mitigating measurement systematics in weak lensing (WL) analysis requires large data sets of realistic galaxies with diverse morphologies and colors. Missions like Euclid, the Nancy Roman Space Telescope, and Vera C. Rubin Observatory’s
Diana Scognamiglio   +4 more
doaj   +1 more source

A Full Resolution of the 450 μm Extragalactic Background Light

open access: yesThe Astrophysical Journal Letters
The extragalactic background light (EBL) is the cumulative radiation outside the Milky Way. The determination of its corresponding primary emitting sources as well as its total energy level across the entire electromagnetic spectrum has profound ...
Qi-Ning Hsu   +3 more
doaj   +1 more source

Aliasing from Galactic Plane Setting in Widefield Radio Interferometry

open access: yesThe Astrophysical Journal
Measurements with widefield radio interferometers often include the near-infinite gradient between the sky and the horizon. This causes aliasing inherent to the measurement itself and is purely a consequence of the Fourier basis.
N. Barry   +4 more
doaj   +1 more source

The DREAMS Project: Disentangling the Impact of Halo-to-halo Variance and Baryonic Feedback on Milky Way Satellite Galaxies

open access: yesThe Astrophysical Journal
We analyze the properties of satellite galaxies around 1024 Milky Way–mass hosts from the DREAMS Project, simulated within a ΛCDM cosmology. Utilizing the TNG galaxy-formation model, the DREAMS simulations incorporate both baryonic physics and ...
Jonah C. Rose   +26 more
doaj   +1 more source

An axisymmetric shock breakout indicated by prompt polarized emission from the type II supernova 2024ggi. [PDF]

open access: yesSci Adv
Yang Y   +20 more
europepmc   +1 more source

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