activity
20242026
most citedGravity or turbulence? VII. The Schmidt-Kennicutt law, the star formation efficiency, and the mass density of clusters from gravitational collapse rather than turbulent support

4 citations · 7 across the 18 of their papers we have counts for

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13 papers · 1 filter

astro-ph.GA2026

The Magnetized Universe: From planet-forming disks to the high-redshift universe

Josep M Girart, Gary Fuller, Wouter Vlemmings +32

The interstellar medium (ISM) is magnetized at all scales and phases in our Galaxy and other galaxies across the Universe. Spectro-polarimetric millimetre observations are essentia…

astro-ph.GA2026

Before fragmentation: from uniform clouds to stellar clusters

A. Giannetti, T. Pillai, J. Kauffmann +4

Our study of the early stages of fragmentation in massive clumps has revealed a striking anomaly: of the CoCoA sample exhibit no fragmentation at all. These sources coul…

astro-ph.GA2026

Accurate proper motions of the protostellar system VLA1623-2417

Ricardo Hernández Garnica, Laurent Loinard, Carlos Carrasco-González +9

We present a detailed astrometric analysis of the quadruple protostellar system VLA1623-2417, deriving accurate absolute proper motions for components A, B, and W, as well as, for…

astro-ph.GA2026

How Should We Understand the Core Mass Function? A memo of the CMF2IMF conference at ESO Garching

Fengwei Xu, Roberto Galvan-Madrid, Kaho Morii +4

The origin of the stellar initial mass function (IMF) remains one of the central questions in astronomy. Nearly three decades ago, the resemblance between the core mass function (C…

astro-ph.GA2026

Comparing the Relation inside a Giant Molecular Cloud

Carlos G. Román-Zúñiga, Aina Palau, Javier Ballesteros-Paredes +3

In this paper we present a simple analysis around scaling relations derived from the Schmidt conjecture for star-forming molecular clouds, at the intra-cloud scale. Using a hierarc…

astro-ph.GA2026

On the relation between magnetic field strength and gas density in the interstellar medium. II. Density uncertainties and diffuse gas constraints

David Whitworth, Amit Seta, Ralph E. Pudritz +4

The relationship between magnetic field strength and gas density is essential to understand the interstellar medium and star formation. Zeeman measurements in dense atomic and mole…

astro-ph.GA2026

The ALMA-QUARKS survey: Investigating Thermal Feedback of Massive Protostars in Hot Molecular Cores

Dezhao Meng, Tie Liu, Jarken Esimbek +33

We identify a sample of 83 spatially resolved hot molecular cores (HMCs) in the QUARKS survey, aiming at investigating thermal feedback from massive stars. Using CHCN\,(12--11)…

astro-ph.GA2025

Synthetic polarization observations of magnetized pillars in HII regions: Assessing the reliability of the Davis-Chandrasekhar-Fermi method

Luis Andrés Hernández-Cruz, Manuel Zamora-Avilés, Abraham Luna +6

We investigated the morphology and strength of magnetic fields in pillar-shaped structures at the boundaries of HII regions by combining three-dimensional radiation-magnetohydrodyn…

astro-ph.GA2025

The ALMA-QUARKS Survey: III. Clump-to-core fragmentation and search for high-mass starless cores

Dongting Yang, Hong-Li Liu, Tie Liu +43

The Querying Underlying mechanisms of massive star formation with ALMA-Resolved gas Kinematics and Structures (QUARKS) survey observed 139 infrared-bright (IR-bright) massive proto…

astro-ph.GA2024

ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions XVII. High-mass star-formation through a large-scale collapse in IRAS 153945358

Swagat R. Das, Manuel Merello, Leonardo Bronfman +23

Hub-filament systems are considered as natural sites for high-mass star formation. Kinematic analysis of the surroundings of hub-filaments is essential to better understand high-ma…

astro-ph.GA2024★ 4 cited

Gravity or turbulence? VII. The Schmidt-Kennicutt law, the star formation efficiency, and the mass density of clusters from gravitational collapse rather than turbulent support

Manuel Zamora-Aviles, Vianey Camacho, Javier Ballesteros-Paredes +7

We explore the Schmidt-Kennicutt (SK) relations and the star formation efficiency per free-fall time (), mirroring observational studies, in numerical simulations of fi…

astro-ph.GA2024

Gravity or turbulence? VI. The physics behind the Kennicutt-Schmidt relations

Javier Ballesteros-Paredes, Manuel Zamora-Avilés, Carlos Román-Zúñiga +6

We explain the large variety of star formation laws in terms of one single, simple law that can be inferred from the definition of the star formation rate and basic algebra. The re…

astro-ph.GA2024★ 2 cited

The Turbulent Support (TS) and Global Hierarchical Collapse (GHC) models for molecular clouds compared. Differences, convergence, and myths

Enrique Vázquez-Semadeni, Aina Palau, Gilberto C. Gómez +8

We provide a detailed comparison between the ``turbulent support'' (TS) and ``global hierarchical collapse'' (GHC) models for molecular clouds and star formation, their respective…