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Related papers: Evidence for a non-universal Kennicutt-Schmidt rel…

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We estimate the parameters of the Kennicutt-Schmidt (KS) relationship, linking the star formation rate (Sigma_SFR) to the molecular gas surface density (Sigma_mol), in the STING sample of nearby disk galaxies using a hierarchical Bayesian…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Rahul Shetty , Brandon C. Kelly , Nurur Rahman , Frank Bigiel , Alberto D. Bolatto , Paul C. Clark , Ralf S. Klessen , Lukas K. Konstandin

We provide a model for how Kennicutt-Schmidt (KS) laws, which describe the correlation between star formation rate and gas surface or volume density, depend on the molecular line chosen to trace the gas. We show that, for lines that can be…

Astrophysics · Physics 2009-11-13 Mark R. Krumholz , Todd A. Thompson

One of the most important and well-established empirical results in astronomy is the Kennicutt-Schmidt (KS) relation between the density of interstellar gas and the rate at which that gas forms stars. A tight correlation between these…

The surface densities of molecular gas, $\Sigma_{\rm H_2}$, and the star formation rate (SFR), $\dot\Sigma_\star$, correlate almost linearly on kiloparsec scales in observed star-forming (non-starburst) galaxies. We explore the origin of…

Astrophysics of Galaxies · Physics 2019-01-11 Vadim A. Semenov , Andrey V. Kravtsov , Nickolay Y. Gnedin

The relationship between the star formation rate surface density and the molecular gas surface density in galaxies is key to understanding galaxy evolution. To investigate the molecular Kennicutt-Schmidt (K-S) relation and its dependence on…

Astrophysics of Galaxies · Physics 2026-04-13 Victoria G. G. Samboco , Ryan P. Keenan

The Kennicutt-Schmidt (KS) relationship between the surface density of the star formation rate (SFR) and the gas surface density has three distinct power laws that may result from one model in which gas collapses at a fixed fraction of the…

Astrophysics of Galaxies · Physics 2018-02-21 Bruce G. Elmegreen

The observationally derived Kennicutt-Schmidt (KS) relation slopes differ from study to study, ranging from sub-linear to super-linear. We investigate the KS-relation variety (slope and normalization) as a function of integrated intensity…

Astrophysics of Galaxies · Physics 2017-03-22 Kana Morokuma-Matsui , Kazuyuki Muraoka

We study the Kennicutt-Schmidt relation between average star formation rate and average cold gas surface density in the Hi dominated ISM of nearby spiral and dwarf irregular galaxies. We divide the galaxies into grid cells varying from…

Astrophysics of Galaxies · Physics 2015-06-24 Sambit Roychowdhury , Mei-Ling Huang , Guinevere Kauffmann , Jing Wang , Jayaram N. Chengalur

We investigate the relationship between the star formation rate per unit area and the surface density of the ISM (the local Kennicutt-Schmitt law) using a simplified model of the ISM and a simple estimate of the star formation rate based on…

Astrophysics of Galaxies · Physics 2015-05-13 C. L. Dobbs , J. E. Pringle

Several studies have reported a nearly linear correlation between the molecular gas and star formation rate surface density, the so-called Kennicutt-Schmidt (KS) law. We aim to retrieve the KS relation for a sample of four star-forming…

(ABRIDGED) We use hydrodynamical simulations of disk galaxies to study relations between star formation and properties of the molecular interstellar medium (ISM). We implement a model for the ISM that includes low-temperature (T<10^4K)…

Astrophysics · Physics 2009-11-13 Brant Robertson , Andrey Kravtsov

We investigate the correlation between star formation rate (SFR) surface density and gas surface density (known as the Kennicutt-Schmidt, KS, relation) at kiloparsec (kpc) scales across cosmic time ($0\le z \le 8$) for galaxies with stellar…

The Kennicutt-Schmidt (KS) relation between the gas and the star formation rate (SFR) surface density ($\Sigma_{\rm gas}$-$\Sigma_{\rm SFR}$) is essential to understand star formation processes in galaxies. So far, it has been measured up…

Recent statistical analysis of two extragalactic observational surveys strongly indicate a sublinear Kennicutt-Schmidt (KS) relationship between the star formation rate (Sigsfr) and molecular gas surface density (Sigmol). Here, we consider…

Astrophysics of Galaxies · Physics 2015-06-19 Rahul Shetty , Paul C. Clark , Ralf S. Klessen

In the Local Group spiral galaxy M33, we investigate the correlation between the star formation rate (SFR) surface density, Sigma_SFR, and the gas density Sigma_gas (molecular, atomic, and total). We also explore whether there are other…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. Verley , E. Corbelli , C. Giovanardi , L. K. Hunt

This study examines the resolved Kennicutt Schmidt (rKS) relation, defined as the connection between the star formation rate surface density (Sigma SFR) and the molecular gas mass surface density (Sigma H2) in the high-density central…

Astrophysics of Galaxies · Physics 2025-09-17 K Sruthi , Sreeja S Kartha , Blesson Mathew , K. Ujjwal , Akhil Krishna R , Shankar Ray

In the second work of this series, we analyse the connection between the availability of gas and the position of a region with respect to the spatially resolved main sequence (MS) relation. Following the procedure presented in Paper I we…

When averaged over large scales, star formation in galaxies is observed to follow the empirical Kennicutt-Schmidt (KS) law for surface densities above a constant threshold. While the observed law involves surface densities, theoretical…

Astrophysics · Physics 2011-06-29 Joop Schaye , Claudio Dalla Vecchia

In this VERTICO science paper we aim to study how the star formation process depends on galactic environment and gravitational interactions in the context of galaxy evolution. We explore the scaling relation between the star formation rate…

Spatially resolved HI studies of dwarf galaxies have provided a wealth of precision data. However these high-quality, resolved observations are only possible for handful of dwarf galaxies in the Local Volume. Future HI surveys are unlikely…

Astrophysics of Galaxies · Physics 2018-06-06 A. Lopez-Sanchez , C. D. P. Lagos , T. Young , H. Jerjen
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