Latest Research

Efficient neutral-IGM inference from noisy 21-cm forest spectra with latent-space U-Net encoding and XGBoost

tomassoltinsky/21cm-forest_1DPS 15 Jul 2025

Although over 30 such quasars are now known at $z > 5. 5$, the signal remains elusive in practice, owing to instrumental noise, the intrinsic weakness of the absorption features, and the limited brightness of available background sources.

Cosmology and Nongalactic Astrophysics

1
15 Jul 2025

An accurate measurement of the spectral resolution of the JWST Near Infrared Spectrograph

ajshajib/nirspec_resolution 4 Jul 2025

In this letter, we present a robust measurement of the spectral resolution for the JWST's Near Infrared Spectrograph (NIRSpec) in all its modes: fixed slit (FS), integral field spectroscopy (IFS), and multi-object spectroscopy (MOS).

Instrumentation and Methods for Astrophysics

0
04 Jul 2025

Volatile-rich evolution of molten super-Earth L 98-59 d

nichollsh/AGNI 3 Jul 2025

Small low-density exoplanets are sculpted by strong stellar irradiation but their origin is unknown.

Earth and Planetary Astrophysics

6
03 Jul 2025

Dynamical origin of Theia, the last giant impactor on Earth

zhaoolee/garss 2 Jul 2025

We find that this scenario can match a large number of constraints, including i) the terrestrial planets' masses and orbits; ii) the CC mass fraction of Earth; iii) the much lower CC mass fraction of Mars, as long as Mars only accreted CC planetesimals (but no CC embryos); iv) the timing of the last giant (Moon-forming) impact; and v) a late accretion phase dominated by non-carbonaceous (NC) bodies.

Earth and Planetary Astrophysics

1,294
02 Jul 2025

Detectability and Parameter Estimation for Einstein Telescope Configurations with GWJulia

andrea-begnoni/gw.jl 26 Jun 2025

Future gravitational-wave (GW) detectors are expected to detect tens of thousands of compact binary coalescences (CBC) per year, depending also on the final detectors layout.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

8
26 Jun 2025

Physics Of Eclipsing Binaries. VII. Interferometric module

miroslavbroz/phoebe2 25 Jun 2025

Interferometric measurements are essential to constrain models of stellar systems, by spatially resolving angular distances and diameters well below the classical diffraction limit.

Solar and Stellar Astrophysics Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics

2
25 Jun 2025

{\tt RapidGBM}: An Efficient Tool for Fermi-GBM Visibility Checking and Data Analysis with a Case Study of EP240617a

0neyun/rapidgbm 25 Jun 2025

As a case, we apply the tool to EP240617a, an X-ray transient triggered by Einstein Probe (EP).

High Energy Astrophysical Phenomena

6
25 Jun 2025

Physics Of Eclipsing Binaries. VIII. Multiple systems

miroslavbroz/phoebe2 25 Jun 2025

In this work, we describe the new dynamical model in Phoebe, which could be used just for this purpose.

Solar and Stellar Astrophysics

2
25 Jun 2025

Physics Of Eclipsing Binaries. IX. Spectroscopic module

miroslavbroz/phoebe2 25 Jun 2025

Spectroscopic observations constrain the fundamental properties of stellar atmospheres, in particular, the effective temperature, the gravitational acceleration, or the metallicity.

Solar and Stellar Astrophysics Instrumentation and Methods for Astrophysics

2
25 Jun 2025

Predicting wide binaries and deviations from standard gravity using machine learning algorithms

despcap/g-ml 24 Jun 2025

We present a machine learning (ML) framework for the detection of wide binary star systems and the identification of deviations from standard gravity using Gaia DR3 data.

Astrophysics of Galaxies General Relativity and Quantum Cosmology

0
24 Jun 2025