output
19962026
most citedMolecular Gas and Star Formation in Nearby Disk Galaxies

681 citations

262 papers

astro-ph.EP2026

Destructuring the disk of AB Aurigae: Dynamics and accretion

Anthony Boccaletti, Emmanuel Di Folco, Anne Dutrey +23

In this paper, we present near-IR polarized images of the AB Aur disk at three epochs spanning 3.85 years with SPHERE/IRDIS, as well as Halpha images obtained with SPHERE/ZIMPOL at…

astro-ph.GA2026

From gas to stars along the spiral wave: CO, HCN, and star formation variations across the spiral arms in NGC 4321 and M51

Minou Greve, Lukas Neumann, Mallory Thorp +17

Molecular clouds form stars from the interstellar medium via gravitational collapse, following a sequence from low-density gas to high-density cores and eventually the formation of…

astro-ph.GA2026

Surveying the Whirlpool at Arcseconds with NOEMA (SWAN). IV. Extent of active galactic nucleus feedback on the interstellar medium

Mallory D. Thorp, Antonio Usero, Frank Bigiel +19

Active Galactic Nuclei (AGN) are intertwined with galaxy evolution, injecting energy into the interstellar medium (ISM) that could regulate star formation as a galaxy evolves. Howe…

math.OC2026

Law-invariant BSDEs and dynamic risk measures: new characterizations

Zakaria Bensaid, Roxana Dumitrescu, Anis Matoussi +1

We provide a new characterization of law-invariant backward stochastic differential equations (i.e. BSDEs) with quadratic growth. This answers the open question raised in Xu--Xu--Z…

astro-ph.EP2026★ 7 cited

Perihelion observations of interstellar comet 3I/ATLAS with the IRAM 30-m telescope

N. Biver, D. Bockelée-Morvan, R. Moreno +6

3I/ATLAS is the third interstellar comet identified as passing through the Solar System. Its high outgassing activity and favourable perihelion passage on October 29, 2025 UT provi…

astro-ph.EP2026

Ortho-Para Chemistry of H2CO in the Protoplanetary Disk TW Hya

M. Gaillard, A. Faure, P. Hily-Blant +4

The spatial distribution of the chemical reservoirs in protoplanetary disks is key to elucidate the composition of planets, especially habitable ones. However, the partitioning of…

astro-ph.GA2026

Resolved molecular gas and star-formation in massive unquenched spirals : I. UGC 8179

Romane Cologni, Simon Flesch, Philippe Salomé +7

Recent studies have uncovered a rare population of super-massive (M* > 1e11 Msun) star-forming spiral galaxies, Super Spiral Galaxies (SSGs), whose existence challenges classical q…

astro-ph.GA2026

Spatial distribution of organics in the Horsehead nebula: Signposts of chemistry driven by atomic carbon

Claudio Hernández-Vera, Viviana V. Guzmán, Jérôme Pety +10

(Abridged) Complex organic molecules (COMs) are considered essential precursors to prebiotic species. While COMs were once expected to be efficiently destroyed under UV-irradiated…

astro-ph.GA2026

G183: An outer galaxy filament feeding a massive protostar

Bhaswati Mookerjea, Saurav Sen, V. S. Veena +1

We present the first detailed multi-tracer observation of a 5-pc long outer Galaxy filament, G183, and the massive young stellar object (YSO) IRAS 05480+2545 associated with it. Us…

astro-ph.SR2025★ 5 cited

Anatomy of the Class I protostar L1489 IRS with NOEMA - II. A disk replenished by a massive streamer

M. Tanious, R. Le Gal, A. Faure +3

(abridged) Streamers are newly identified channels that transport mass from large, molecular-cloud scales down to small, protoplanetary-disk scales. To better understand their impa…

astro-ph.EP2025★ 3 cited

Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk

A. Dutrey, O. Denis-Alpizar, S. Guilloteau +22

Context: Investigating the vertical distribution of molecular content in protoplanetary disks remains difficult in most disks mildly inclined along the line of sight. In contrast,…

astro-ph.GA2025

Surveying the Whirlpool at Arcseconds with NOEMA (SWAN): III. CO/CO ratio variations across the M51 galaxy

Ina Galić, Mallory Thorp, Frank Bigiel +16

CO isotopologues are common tracers of the bulk molecular gas in extragalactic studies, providing insights into the physical and chemical conditions of the cold molecular gas, a re…

astro-ph.EP2025★ 14 cited

A D/H Ratio Consistent with Earth's Water in Halley-type Comet 12P from ALMA HDO Mapping

M. A. Cordiner, E. L. Gibb, Z. Kisiel +18

Isotopic measurements of Solar System bodies provide a primary paradigm within which to understand the origins and histories of planetary materials. The D/H ratio in particular, he…

astro-ph.GA2025

Noema formIng Cluster survEy (NICE): A Census of Star Formation and Cold Gas Properties in Massive protoclusters at 1.5<z<4

Luwenjia Zhou, Tao Wang, Emanuele Daddi +36

Massive protoclusters at z~1.5-4, the peak of the cosmic star formation history, are key to understanding the formation mechanisms of massive galaxies in today's clusters. However,…

astro-ph.GA2025★ 1 cited

Tracers of the ionization fraction in dense and translucent molecular gas: II. Using mm observations to constrain ionization fraction across Orion B

Ivana Bešlić, Maryvonne Gerin, Viviana V. Guzmán +28

The ionization fraction () is a crucial parameter of interstellar gas, yet estimating it requires deep knowledge of molecular gas chemistry…

astro-ph.EP2025★ 4 cited

Edge-On Disk Study (EODS) II: Thermal Structure of the Flying Saucer Disk

S. Guilloteau, O. Denis-Alpizar, A. Dutrey +21

Context. The dust and gas temperature in proto-planetary disks play critical roles in determining their chemical evolution and influencing planet formation processes. Aims. We atte…

astro-ph.GA2025★ 2 cited

FAUST XXV. A potential new molecular outflow in [BHB2007] 11

A. Martínez-Henares, I. Jiménez-Serra, C. Vastel +26

During the early stages of star formation, accretion processes such as infall from the envelope and molecular streamers, and ejection of matter through winds and jets take place si…

astro-ph.GA2025★ 1 cited

Estimating the dense gas mass of molecular clouds using spatially unresolved 3 mm line observations

Antoine Zakardjian, Annie Hughes, Jérôme Pety +28

We aim to develop a new method to infer the sub-beam probability density function (PDF) of H2 column densities and the dense gas mass within molecular clouds using spatially unreso…

astro-ph.GA2024★ 1 cited

On volume density and star formation in nearby molecular clouds

Jan H. Orkisz, Jouni Kainulainen

Volume density is a key physical quantity controlling the evolution of the interstellar medium (ISM) and star formation, but it cannot be accessed directly by observations of molec…

astro-ph.HE2024

A Two-Week Monitoring Campaign on Mrk 421

W. Peter Maksym, Ioannis Liodakis, M. Lynne Saade +153

X-ray polarization is a unique new probe of the particle acceleration in astrophysical jets made possible through the Imaging X-ray Polarimetry Explorer. Here we report on the firs…

astro-ph.GA2024★ 4 cited

Toward a robust physical and chemical characterization of heterogeneous lines of sight: The case of the Horsehead nebula

Léontine Ségal, Antoine Roueff, Jérôme Pety +28

Dense cold molecular cores/filaments are surrounded by an envelope of translucent gas. Some of the low-J emission lines of CO and HCO isotopologues are more sensitive to the co…

astro-ph.GA2024★ 8 cited

Quantifying the informativity of emission lines to infer physical conditions in giant molecular clouds. I. Application to model predictions

Lucas Einig, Pierre Palud, Antoine Roueff +29

Observations of ionic, atomic, or molecular lines are performed to improve our understanding of the interstellar medium (ISM). However, the potential of a line to constrain the phy…

astro-ph.EP2024★ 10 cited

SO as shock tracer in protoplanetary disks: the AB Aurigae case

A. Dutrey, E. Chapillon, S. Guilloteau +9

{Sulfur Monoxide is known to be a good shock tracer in molecular clouds and protostar environments, but its abundance is difficult to reproduce even using state-of-the-art astroche…

astro-ph.EP2024★ 23 cited

Chemical composition of comets C/2021 A1 (Leonard) and C/2022 E3 (ZTF) from radio spectroscopy and the abundance of HCOOH and HNCO in comets

N. Biver, D. Bockelee-Morvan, B. Handzlik +14

We present the results of a molecular survey of long period comets C/2021 A1 (Leonard) and C/2022 E3 (ZTF). Comet C/2021 A1 was observed with the IRAM 30-m radio telescope in Novem…