Spectroscopic verification of very luminous galaxy candidates in the early universe

no code yet • 27 Mar 2023

During the first 500 million years of cosmic history, the first stars and galaxies formed and seeded the cosmos with heavy elements.

Astrophysics of Galaxies

TWEETS

GRB 191019A: a short gamma-ray burst in disguise from the disk of an active galactic nucleus

no code yet • 22 Mar 2023

GRB 191019A was a long GRB ($T_{90}\sim64$ s).

High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics Solar and Stellar Astrophysics

TWEETS

Improving the open cluster census. II. An all-sky cluster catalogue with Gaia DR3

no code yet • 23 Mar 2023

We aim to conduct a blind, all-sky search for open clusters using 729 million sources from Gaia DR3 down to magnitude $G\sim20$, creating a homogeneous catalogue of clusters including many new objects.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

TWEETS

Extragalactic magnetism with SOFIA (SALSA Legacy Program) -- V: First results on the magnetic field orientation of galaxies

no code yet • 23 Mar 2023

For spiral galaxies, FIR $B$-fields are $2-75$\% more turbulent than the radio $B$-fields.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

TWEETS

A Catalogue of Exoplanet Atmospheric Retrieval Codes

no code yet • 22 Mar 2023

Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.

Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics

TWEETS

Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

no code yet • 23 Mar 2023

We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13. 7 minutes.

Solar and Stellar Astrophysics High Energy Astrophysical Phenomena

TWEETS

The dark matter profile of the Milky Way inferred from its circular velocity curve

no code yet • 22 Mar 2023

Our results further demonstrate the capability of the circular velocity curve, especially in light of the recent wave of data, in constraining the Milky Way's dark matter halo.

Astrophysics of Galaxies

TWEETS

Disk settling and dynamical heating: histories of Milky Way-mass stellar disks across cosmic time in the FIRE simulations

no code yet • 24 Mar 2023

We identify three eras: a Pre-Disk Era (typically >8 Gyr ago), when stars formed on dispersion-dominated orbits; an Early-Disk Era (~ 8 - 4 Gyr ago), when stars started to form on rotation-dominated orbits but with high velocity dispersion, sigma_form; and a Late-Disk Era (< 4 Gyr ago), when stars formed with low sigma_form.

Astrophysics of Galaxies

TWEETS

The impact of AGN-driven winds on physical and observable galaxy sizes

no code yet • 22 Mar 2023

These winds reduce the gas surface density in the inner regions of the galaxy, suppressing the very compact starburst and maintaining an approximately constant half-mass radius.

Astrophysics of Galaxies High Energy Astrophysical Phenomena

TWEETS

A Quick Look at the 3GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey

no code yet • 22 Mar 2023

Active Galactic Nuclei (AGN) can often be identified in radio images as two lobes, sometimes connected to a core by a radio jet.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

TWEETS