Trending Research

YOLO-CIANNA: Galaxy detection with deep learning in radio data. I. A new YOLO-inspired source detection method applied to the SKAO SDC1

deyht/cianna 8 Feb 2024

YOLO-CIANNA achieves state-of-the-art detection and characterization results on the simulated SDC1 dataset.

Instrumentation and Methods for Astrophysics Astrophysics of Galaxies

31
0.06 stars / hour

Did the Universe Reheat After Recombination?

CobayaSampler/cobaya 7 Apr 2023

Here, we consider cosmological models with post-recombination reheating (PRR), in which the CMB monopole temperature abruptly increases due to energy injection after last scattering.

Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology

118
0.05 stars / hour

The buildup of galaxies and their spheroids: the contributions of mergers, disc instabilities and star formation

swiftsim/swiftsim 14 Jul 2022

Disc instabilities and their associated starbursts dominate for intermediate-mass spheroids ($10^{8. 5}<M_\mathrm{*, sph}<10^{11}$ M$_\odot$) at $z=0$.

Astrophysics of Galaxies

77
0.03 stars / hour

Caustic and hydrostatic mass bias: Implications for modified gravity

dfm/emcee 9 Jan 2024

We propose and perform a joint analysis of the two different mass estimates of galaxy clusters, namely the hydrostatic and caustic techniques.

Cosmology and Nongalactic Astrophysics

1,420
0.02 stars / hour

PeTar: a high-performance N-body code for modeling massive collisional stellar systems

lwang-astro/PeTar 30 Jun 2020

Until now, only a few realistic million-body simulations of GCs with a small fraction of binaries (5%) have been performed by using the NBODY6++GPU code.

Instrumentation and Methods for Astrophysics Astrophysics of Galaxies

65
0.02 stars / hour

NLTE Spectra of Kilonovae

flexible-atomic-code/fac 3 Sep 2023

We suggest the Rb I $\rm{5p^{1}}$- $\rm{5s^{1}}$ 7900 angstrom transition as a candidate for the $\lambda_0 \sim$ 7500--7900 angstrom P-Cygni feature in AT2017gfo.

High Energy Astrophysical Phenomena

66
0.02 stars / hour

Temperature inhomogeneities in Mrk71 can not be discarded

Morisset/PyNeb_devel 2 Oct 2023

In a very recent work, [1] claim that the scenario of temperature inhomogeneities proposed by [2] ($t2$ > 0) is not able to explain the O$^{2+}$/H$^{+}$ abundance discrepancy observed between the calculations based on the optical [OIII] collisional excited lines (CELs) and the OII recombination lines (RLs) in the star forming galaxy Mrk71.

Astrophysics of Galaxies

37
0.02 stars / hour

Rainbow: a colorful approach on multi-passband light curve estimation

light-curve/light-curve 4 Oct 2023

We evaluate the quality of the estimated light curves according to three different tests: goodness of fit, time of peak prediction and ability to transfer information to machine learning (ML) based classifiers.

Instrumentation and Methods for Astrophysics Data Analysis, Statistics and Probability

17
0.02 stars / hour

The cosmological simulation code $\scriptstyle{\rm CO}N{\rm CEPT}\, 1.0$

jmd-dk/concept 2 Dec 2021

We present version 1. 0 of the cosmological simulation code $\scriptstyle{\rm CO}N{\rm CEPT}$, designed for simulations of large-scale structure formation.

Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics

77
0.02 stars / hour

AutoProf -- I. An automated non-parametric light profile pipeline for modern galaxy surveys

ConnorStoneAstro/AutoProf 25 Jun 2021

It is established that elliptical isophote fitting, and in particular AutoProf, is ideally suited for a broad range of automated isophotal analysis tasks.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

69
0.02 stars / hour