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Related papers: The baryonic mass-size relation of galaxies. II. I…

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The mass-size relations of galaxies are generally studied considering only stars or only gas separately. Here we study the baryonic mass-size relation of galaxies from the SPARC database, using the total baryonic mass ($M_{\rm bar}$) and…

Astrophysics of Galaxies · Physics 2025-10-21 Zichen Hua , Federico Lelli , Enrico Di Teodoro , Stacy McGaugh , James Schombert

Here I report the scaling relation between the baryonic masses and the scale lengths of stellar discs from $\sim$1000 morphologically late-type galaxies. The baryonic mass-size relation is a single power-law $R_\ast \propto M_b^{0.38}$…

Astrophysics of Galaxies · Physics 2017-12-20 Po-Feng Wu

(Abridged) The relations between stellar ($M_\ast$), gas ($M_{\rm gas}$), baryonic ($M_{\rm bar} = M_\ast + M_{\rm gas}$), and dark matter halo mass ($M_{200}$) provide unique constraints on galaxy formation and cosmology. The shape of the…

In the Big Bang about 5% of the mass that was created was in the form of normal baryonic matter (neutrons and protons). Of this about 10% ended up in galaxies in the form of stars or of gas (that can be in molecules, can be atomic, or can…

Astrophysics · Physics 2009-11-10 J. I. Read , Neil Trentham

In the standard cosmological model, the assembly of galaxies is primarily driven by the growth of their host dark matter halos. At the center of these halos, however, baryonic processes take over, leading to the plethora of observed galaxy…

Astrophysics of Galaxies · Physics 2024-02-21 Laura Scholz-Diaz , Ignacio Martin-Navarro , Jesus Falcon-Barroso , Mariya Lyubenova , Glenn van de Ven

The observed rotation curves of disc galaxies, ranging from late-type dwarf galaxies to early-type spirals, can be fit remarkably well simply by scaling up the contributions of the stellar and HI discs. This `baryonic scaling model' can…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 R. A. Swaters , R. Sancisi , J. M. van der Hulst , T. S. van Albada

How mass assembly occurs in galaxies and which process(es) contribute to this activity are among the most highly debated questions in galaxy formation theories. This has motivated our survey MASSIV of 0.9<z<1.9 star-forming galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2012-11-29 D. Vergani , B. Epinat , T. Contini , L. Tasca , L. Tresse , P. Amram , B. Garilli , M. Kissler-Patig , O. Le Fevre , J. Moultaka , L. Paioro , J. Queyrel , C. Lopez-Sanjuan

We report the results of a comprehensive study of the relationship between galaxy size, stellar mass and specific star-formation rate (sSFR) at redshifts 1.3<z<1.5. Based on a mass complete (M_star >= 6x10^10 Msun), spectroscopic sample…

We select a sample of galaxies from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7) where galaxies are classified, through visual inspection, as hosting strong bars, weak bars or as unbarred galaxies, and make use of HI mass and…

Astrophysics of Galaxies · Physics 2017-01-23 Bernardo Cervantes Sodi

Dwarf galaxies are dark matter-dominated systems that are sensitive to feedback and display a diversity of baryonic morphologies. This makes them excellent probes for understanding dark matter and galaxy evolution. This work investigates…

Astrophysics of Galaxies · Physics 2025-11-03 Robel Geda , Akaxia Cruz , Anna C. Wright , Jenny E. Greene , Alyson Brooks , Thomas Quinn , James Wadsley , Ben Keller

In the widely adopted LambdaCDM scenario for galaxy formation, dwarf galaxies are the building blocks of larger galaxies. Since they formed at relatively early epochs when the background density was relatively high, they are expected to…

Astrophysics of Galaxies · Physics 2015-06-12 Matthias Gritschneder , Douglas N. C. Lin

Star formation rate density, $\Sigma_{\rm SFR}$, has shown a remarkable correlation with both components of the baryonic mass at kpc scales (i.e., the stellar mass density, and the molecular gas mass density; $\Sigma_{\ast}$, and…

We present an analysis of the atomic hydrogen and stellar properties of 38 late-type galaxies in the local Universe covering a wide range of HI mass-to-light ratios (M_HI/L_B), stellar luminosities, and surface brightnesses. From these data…

Astrophysics · Physics 2009-06-23 Bradley E. Warren , Helmut Jerjen , Bärbel S. Koribalski

We study the evolution of the scaling relations between maximum circular velocity, stellar mass and optical half-light radius of star-forming disk-dominated galaxies in the context of LCDM-based galaxy formation models. Using data from the…

We utilize Sloan Digital Sky Survey imaging and spectroscopy of ~53,000 star-forming galaxies at z~0.1 to study the relation between stellar mass and gas-phase metallicity. We derive gas-phase oxygen abundances and stellar masses using new…

We combine the published stellar mass function (SMF) and gas scaling relations to explore the baryonic (stellar plus cold gas) mass function (BMF) of galaxies to redshift $z=3$. We find evidence that at log$(M_{\rm…

Astrophysics of Galaxies · Physics 2020-01-08 Zhizheng Pan , Yingjie Peng , Xianzhong Zheng , Jing Wang , Xu Kong

A comparison between published field galaxy stellar mass functions (GSMFs) shows that the cosmic stellar mass density is in the range 4--8 per cent of the baryon density (assuming Omega_b = 0.045). There remain significant sources of…

Astrophysics · Physics 2009-11-13 I. K. Baldry , K. Glazebrook , S. P. Driver

Empirical models often rely on key relations from the galaxy--halo connection to construct mock galaxy catalogues. These relations typically describe central galaxies more accurately than satellite galaxies, which are generally less massive…

We show that a global relation between baryonic mass and virial velocity can be constructed from the scale of dwarf galaxies up to that of rich galaxy clusters. The slope of this relation is close to that expected if dark matter halos form…

Astrophysics · Physics 2009-11-10 Lucio Mayer , Ben Moore

We performed a series of 29 gasdynamical simulations of disc galaxies, barred and unbarred, with various stellar masses, to study the impact of the bar on star formation history. Unbarred galaxies evolve very smoothly, with a star formation…

Astrophysics of Galaxies · Physics 2016-10-12 Christian Carles , Hugo Martel , Sara L. Ellison , Daisuke Kawata
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