Latest Research

Strong gravitational lenses from the Vera C. Rubin Observatory

ajshajib/dark_energy_forecast_rubin_strong_lensing 13 Jun 2024

Like many areas of astrophysics and cosmology, the Vera C. Rubin Observatory will be transformational for almost all the applications of strong lensing, thanks to the dramatic increase in the number of known strong lenses by two orders of magnitude or more and the readily available time-domain data for the lenses with transient sources.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

2
13 Jun 2024

On the age distribution of Classical Cepheids in the Galaxy

fjaellet/cepheids_age_distribution 10 Jun 2024

We show that the observed age vs. Galactocentric radius distribution in the Milky Way is a direct consequence of the disc's negative radial metallicity gradient (and, depending on the set of stellar models used, a metallicity dependence of the instability strip).

Astrophysics of Galaxies Solar and Stellar Astrophysics

0
10 Jun 2024

Multi-Generational Black Hole Population Analysis with an Astrophysically Informed Mass Function

multipass-black-holes/multipass 10 Jun 2024

We analyze the population statistics of black holes in the LIGO/Virgo/KAGRA GWTC-3 catalog using a parametric mass function derived from simulations of massive stars experiencing pulsational pair-instability supernovae (PPISN).

High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

0
10 Jun 2024

Foam: A Python package for forward asteroseismic modelling of gravity modes

MichielsenM/FOAM 10 Jun 2024

Asteroseismology, the study of stellar pulsations, offers insights into the internal structures and evolution of stars.

Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics

4
10 Jun 2024

CombineHarvesterFlow: Joint Probe Analysis Made Easy with Normalizing Flows

pltaylor16/combineharvesterflow 10 Jun 2024

We show how to efficiently sample the joint posterior of two non-covariant experiments with a large set of nuisance parameters.

Cosmology and Nongalactic Astrophysics

0
10 Jun 2024

The Dark Energy Survey Supernova Program: Light curves and 5-Year data release

des-science/des-sn5yr 7 Jun 2024

We present $griz$ photometric light curves for the full 5 years of the Dark Energy Survey Supernova program (DES-SN), obtained with both forced Point Spread Function (PSF) photometry on Difference Images (DIFFIMG) performed during survey operations, and Scene Modelling Photometry (SMP) on search images processed after the survey.

Cosmology and Nongalactic Astrophysics

2
07 Jun 2024

PyExoCross: a Python program for generating spectra and cross-sections from molecular line lists

exomol/pyexocross 6 Jun 2024

PyExoCross is a Python adaptation of the ExoCross Fortran application, PyExoCross is designed for postprocessing the huge molecular line lists generated by the ExoMol project and other similar initiatives such as the HITRAN and HITEMP databases.

Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Chemical Physics

5
06 Jun 2024

How much do we know the halo mass function? Predictions beyond resolution

weiguangcui/hmkhmf 6 Jun 2024

As a common gravitation virialized object in the standard $\Lambda$CDM cosmology, dark matter halo connects from the large-scale structure all the way down to galaxy and star formation.

Cosmology and Nongalactic Astrophysics

0
06 Jun 2024

Modeling Time-Variable Elemental Abundances in Coronal Loop Simulations

jwreep/ebtel_abundances 6 Jun 2024

This suggests heating rates in quiescent AR loops no larger than $\approx 0. 1$ erg s$^{-1}$ cm$^{-3}$ to be consistent with recent measurements of abundance factors $f \gtrsim 2$.

Solar and Stellar Astrophysics

1
06 Jun 2024

Systematic analysis of jellyfish galaxy candidates in Fornax, Antlia, and Hydra from the S-PLUS survey: A self-supervised visual identification aid

yash-10/jellyfish_self_supervised 6 Jun 2024

We study 51 jellyfish galaxy candidates in the Fornax, Antlia, and Hydra clusters.

Astrophysics of Galaxies

0
06 Jun 2024