One hundred new unidentified optical emission lines from a low-metallicity photodissociation region

will-henney/muse-hii-regions 1 Jun 2023

We report the detection of a rich spectrum of more than one hundred optical emission lines from neutral/molecular gas in the photodissociation region (PDR) around the mini-starburst cluster NGC 346 in the Small Magellanic Cloud.

Astrophysics of Galaxies

01 Jun 2023

Clustering of binary black hole mergers: a detailed analysis of the EAGLE+MOBSE simulation

micmap/mobse_open 29 May 2023

We perform a detailed study of the cosmological bias of gravitational gave (GW) events produced by binary black hole mergers (BBHM).

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

29 May 2023

The BarYon CYCLE Project (ByCycle): Identifying and Localizing MgII Metal Absorbers with Machine Learning

astroland93/qso-mag2net 29 May 2023

For the lowest SNR spectra ($\rm{SNR=3}$), the CNN reliably recovers and localizes EW$_{\rm{MgII, 2796}}^{\rm{rest}}$ $\geq$ 0. 75 \AA\, absorbers.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics

29 May 2023

ICAROGW: A python package for inference of astrophysical population properties of noisy, heterogeneous and incomplete observations

simone-mastrogiovanni/icarogw 29 May 2023

We present icarogw 2. 0, a pure CPU/GPU python code developed to infer astrophysical and cosmological population properties of noisy, heterogeneous, and incomplete observations.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

29 May 2023

STARRED: a two-channel deconvolution method with Starlet regularization

cosmograil/starred 29 May 2023

Once the PSF is estimated, it can be removed from the data through the so-called deconvolution process, leading to images of improved spatial resolution.

Instrumentation and Methods for Astrophysics Computational Physics

29 May 2023

Limits from the grave: resurrecting Hitomi for decaying dark matter and forecasting leading sensitivity for XRISM

bsafdi/hitomi_bso_for_dm 26 May 2023

The Hitomi X-ray satellite mission carried unique high-resolution spectrometers that were set to revolutionize the search for sterile neutrino dark matter (DM) by looking for narrow X-ray lines arising from DM decays.

Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena High Energy Physics - Phenomenology

26 May 2023

The Orbital Eccentricity Distribution of Planets Orbiting M dwarfs

ssagear/photoeccentric 26 May 2023

We describe the eccentricity distribution for apparently single-transiting planetary systems with a Rayleigh distribution with sigma = 0. 19 (+0. 04, -0. 03), and for multi-transit systems with sigma = 0. 03 (+0. 02, -0. 01).

Earth and Planetary Astrophysics Solar and Stellar Astrophysics

26 May 2023

RMTable2023 and PolSpectra2023: standards for reporting polarization and Faraday rotation measurements of radio sources

cirada-tools/polspectra 26 May 2023

However, it has been difficult to take full advantage of all these RMs as the individual catalogs have been published in many different places, and in many different formats.

Instrumentation and Methods for Astrophysics

26 May 2023

Radio Galaxy Zoo: Building a multi-purpose foundation model for radio astronomy with self-supervised learning

inigoval/finetune 25 May 2023

In this work, we apply self-supervised learning with instance differentiation to learn a robust, multi-purpose representation for use in radio astronomy.

Instrumentation and Methods for Astrophysics Astrophysics of Galaxies

25 May 2023

Detector induced anisotropies on the angular distribution of gravitational wave sources and opportunities of constraining horizon scale anisotropies

mzli01/gwsky 25 May 2023

However its verification with high accuracy is challenging due to various foregrounds and selection effects, and possible violation of the cosmological principle has been reported in the literature.

Cosmology and Nongalactic Astrophysics

25 May 2023