activity
20212025
most citedNew Constraints on the CO(2-1)/(1-0) Line Ratio Across Nearby Disc Galaxies

130 citations · 227 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.GA2025

Resolved Profiles of Stellar Mass, Star Formation Rate, and Predicted CO-to-H Conversion Factor Across Thousands of Local Galaxies

Jiayi Sun, Yu-Hsuan Teng, I-Da Chiang +9

We present radial profiles of surface brightness in UV and IR bands, estimate stellar mass surface density () and star formation rate surface density (), a…

astro-ph.GA2025

Constraining resolved extragalactic variation with well calibrated ALMA observations

Jakob den Brok, Elias K. Oakes, Adam K. Leroy +13

CO(1-0) and CO(2-1) are commonly used as bulk molecular gas tracers. The CO line ratios (especially CO(2-1)/CO(1-0) - ) vary within and among galaxies, yet previous studies…

astro-ph.GA2025

The impact of spiral arms on the star formation life cycle

Andrea Romanelli, Mélanie Chevance, J. M. Diederik Kruijssen +18

The matter cycle between gas clouds and stars in galaxies plays a crucial role in regulating galaxy evolution through feedback mechanisms. In turn, the local and global galactic en…

astro-ph.GA2025★ 2 cited

Surveying the Whirlpool at Arcseconds with NOEMA (SWAN) II: Survey design and observations

K. Sophia Stuber, Jerome Pety, Antonio Usero +18

We present Surveying the Whirlpool at Arcseconds with NOEMA (SWAN), a high-resolution, high-sensitivity survey to map molecular lines in the 3mm band in M51 (the Whirlpool galaxy).…

astro-ph.GA2024★ 19 cited

PHANGS-MeerKAT and MHONGOOSE HI observations of nearby spiral galaxies: physical drivers of the molecular gas fraction,

Cosima Eibensteiner, Jiayi Sun, Frank Bigiel +36

The molecular-to-atomic gas ratio is crucial to the evolution of the interstellar medium in galaxies. We investigate the balance between the atomic () and molecular gas…

astro-ph.GA2024

The properties and kinematics of HCN emission across the closest starburst galaxy NGC 253 observed with ALMA

Ivana Beslic, Ashley T. Barnes, Frank Bigiel +21

Studying molecular gas in nearby galaxies using hydrogen cyanide (HCN) as a tracer for higher densities than CO emission still poses a significant challenge. Even though several ga…

astro-ph.CO2023

GraL spectroscopic identification of multiply imaged quasars

Priyanka Jalan, Vibhore Negi, Jean Surdej +24

Gravitational lensing is proven to be one of the most efficient tools for studying the Universe. The spectral confirmation of such sources requires extensive calibration. This pape…

astro-ph.GA2023

Gaia GraL: Gaia DR2 Gravitational Lens Systems. VIII. A radio census of lensed systems

Dougal Dobie, Dominique Sluse, Adam Deller +26

We present radio observations of 24 confirmed and candidate strongly lensed quasars identified by the Gaia Gravitational Lenses (GraL) working group. We detect radio emission from…

astro-ph.GA2023

Resolved low-J CO excitation at 190 parsec resolution across NGC 2903 and NGC 3627

J. S. den Brok, A. K. Leroy, A. Usero +14

The low- rotational transitions of CO are commonly used to trace the distribution of molecular gas in galaxies. Their ratios are sensitive to excitation and physical cond…

astro-ph.GA2023

BASS XXXIV: A Catalog of the Nuclear Mm-wave Continuum Emission Properties of AGNs Constrained on Scales 100--200 pc

Taiki Kawamuro, Claudio Ricci, Richard F. Mushotzky +25

We present a catalog of the millimeter-wave (mm-wave) continuum properties of 98 nearby ( 0.05) active galactic nuclei (AGNs) selected from the 70-month Swift/BAT hard X-ray c…

astro-ph.GA2023★ 14 cited

Spectral Stacking of Radio-Interferometric Data

Lukas Neumann, Jakob S. den Brok, Frank Bigiel +11

Mapping molecular line emission beyond the bright low-J CO transitions is still challenging in extragalactic studies, even with the latest generation of (sub-)mm interferometers, s…

astro-ph.GA2023★ 8 cited

The impact of HII regions on Giant Molecular Cloud properties in nearby galaxies sampled by PHANGS ALMA and MUSE

Antoine Zakardjian, Jérôme Pety, Cinthya N. Herrera +36

We identify giant molecular clouds (GMCs) associated with HII regions for a sample of 19 nearby galaxies using catalogs of GMCs and H regions released by the PHANGS-ALMA and PHANGS…

astro-ph.GA2023★ 18 cited

Kinematic analysis of the super-extended HI disk of the nearby spiral galaxy M83

Cosima Eibensteiner, Frank Bigiel, Adam K. Leroy +33

We present new HI observations of the nearby massive spiral galaxy M83, taken with the VLA at angular resolution ( pc) of an extended (1.5 deg…

astro-ph.GA2021★ 36 cited

BASS XXIX: The near-infrared view of the BLR: the effects of obscuration in BLR characterisation

Ricci F., Treister E., Bauer F. E. +24

Virial black hole mass () determination directly involves knowing the broad line region (BLR) clouds velocity distribution, their distance from the central supermassive bla…

astro-ph.GA2021★ 130 cited

New Constraints on the CO(2-1)/(1-0) Line Ratio Across Nearby Disc Galaxies

J. S. den Brok, D. Chatzigiannakis, F. Bigiel +18

Both the CO(2-1) and CO(1-0) lines are used to trace the mass of molecular gas in galaxies. Translating the molecular gas mass estimates between studies using different lines requi…