activity
20152026
most citedThe lifecycle of molecular clouds in nearby star-forming disc galaxies

292 citations · 4k across the 92 of their papers we have counts for

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Showing 2023Show all

13 papers · 1 filter

astro-ph.GA2023

Resolved Measurements of the CO-to-H Conversion Factor in 37 Nearby Galaxies

I-Da Chiang, Karin M. Sandstrom, Jeremy Chastenet +6

We measure the CO-to-H conversion factor () in 37 galaxies at 2~kpc resolution, using dust surface density inferred from far-infrared emission as a tracer of the…

astro-ph.GA2023

The PHANGS-AstroSat Atlas of Nearby Star Forming Galaxies

Hamid Hassani, Erik Rosolowsky, Eric W. Koch +29

We present the Physics at High Angular resolution in Nearby GalaxieS (PHANGS)-AstroSat atlas, which contains ultraviolet imaging of 31 nearby star-forming galaxies captured by the…

astro-ph.GA2023

A Two-Component Probability Distribution Function Describes the mid-IR Emission from the Disks of Star-Forming Galaxies

Debosmita Pathak, Adam K. Leroy, Todd A. Thompson +28

High-resolution JWST-MIRI images of nearby spiral galaxies reveal emission with complex substructures that trace dust heated both by massive young stars and the diffuse interstella…

astro-ph.GA2023

Star Formation Efficiency in Nearby Galaxies Revealed with a New CO-to-H2 Conversion Factor Prescription

Yu-Hsuan Teng, I-Da Chiang, Karin M. Sandstrom +24

Determining how galactic environment, especially the high gas densities and complex dynamics in bar-fed galaxy centers, alters the star formation efficiency (SFE) of molecular gas…

astro-ph.GA2023★ 7 cited

A sensitive, high-resolution, wide-field IRAM NOEMA CO(1-0) survey of the very nearby spiral galaxy IC 342

M. Querejeta, J. Pety, A. Schruba +31

We present a new wide-field 10.75 x 10.75 arcmin^2 (~11x11 kpc^2), high-resolution (theta = 3.6" ~ 60 pc) NOEMA CO(1-0) survey of the very nearby (d=3.45 Mpc) spiral galaxy IC 342.…

astro-ph.GA2023★ 1 cited

Resolved Kennicutt-Schmidt law in two strongly lensed star-forming galaxies at redshift 1

David Nagy, Miroslava Dessauges-Zavadsky, Matteo Messa +4

We study the star formation rate (SFR) versus molecular gas mass () scaling relation from hundreds to thousands parsec scales in two strongly lensed galaxies at red…

astro-ph.GA2023★ 28 cited

Calibrating mid-infrared emission as a tracer of obscured star formation on HII-region scales in the era of JWST

Francesco Belfiore, Adam K. Leroy, Thomas G. Williams +25

Measurements of the star formation activity on cloud scales are fundamental to uncovering the physics of the molecular cloud, star formation, and stellar feedback cycle in galaxies…

astro-ph.GA2023★ 27 cited

Fuelling the nuclear ring of NGC 1097

Mattia C. Sormani, Ashley T. Barnes, Jiayi Sun +24

Galactic bars can drive cold gas inflows towards the centres of galaxies. The gas transport happens primarily through the so-called bar ``dust lanes'', which connect the galactic d…

astro-ph.GA2023★ 51 cited

The Physical Drivers and Observational Tracers of CO-to-H2 Conversion Factor Variations in Nearby Barred Galaxy Centers

Yu-Hsuan Teng, Karin M. Sandstrom, Jiayi Sun +24

The CO-to-H conversion factor ($α_\rm{CO}$) is central to measuring the amount and properties of molecular gas. It is known to vary with environmental conditions, and previous…

astro-ph.GA2023★ 100 cited

Star Formation Laws and Efficiencies across 80 Nearby Galaxies

Jiayi Sun, Adam K. Leroy, Eve C. Ostriker +37

We measure empirical relationships between the local star formation rate (SFR) and properties of the star-forming molecular gas on 1.5 kpc scales across 80 nearby galaxies. These r…

astro-ph.GA2023★ 35 cited

The ALMOND Survey: Molecular cloud properties and gas density tracers across 25 nearby spiral galaxies with ALMA

Lukas Neumann, Molly J. Gallagher, Frank Bigiel +28

We use new HCN(1-0) data from the ALMOND (ACA Large-sample Mapping Of Nearby galaxies in Dense gas) survey to trace the kpc-scale molecular gas density structure and CO(2-1) data f…

astro-ph.GA2023★ 9 cited

Kpc-scale properties of dust temperature in terms of dust mass and star formation activity

I-Da Chiang, Hiroyuki Hirashita, Jeremy Chastenet +7

We investigate how the dust temperature is affected by local environmental quantities, especially dust surface density (), dust-to-gas ratio (D/G) and interstellar…

astro-ph.GA2023★ 57 cited

PHANGS-JWST First Results: Mid-infrared emission traces both gas column density and heating at 100 pc scales

Adam K. Leroy, Karin Sandstrom, Erik Rosolowsky +48

We compare mid-infrared (mid-IR), extinction-corrected H, and CO (2-1) emission at 70--160 pc resolution in the first four PHANGS-JWST targets. We report correlation strengths,…