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Related papers: HI angular momentum mass relation

200 papers

Motivated by new kinematic data in the outer parts of early-type galaxies (ETGs), we re-examine angular momentum (AM) in all galaxy types. We present methods for estimating the specific AM j, focusing on ETGs, to derive relations between…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Aaron J. Romanowsky , S. Michael Fall

Observed scaling relations in galaxies between baryons and dark matter global properties are key to shed light on the process of galaxy formation and on the nature of dark matter. Here, we study the scaling relation between the neutral…

The properties of galaxies follow scaling relations related to the physics that govern galaxy evolution. Based on these, we can identify galaxies undergoing specific evolutionary processes such as HI-excess galaxies, which have relatively…

Astrophysics of Galaxies · Physics 2024-12-12 H. Denes , V. A. Capa

We introduce a new diagnostic for exploring the link between angular momentum and local gravitational instability in galaxy discs. Our diagnostic incorporates the latest developments in disc instability research, is fully consistent with…

Astrophysics of Galaxies · Physics 2018-08-07 Alessandro B. Romeo , Keoikantse Moses Mogotsi

Mass and angular momentum are key parameters of galaxies. Their co-evolution establishes an empirical relation between the specific stellar angular momentum j* and the stellar mass M* that depends on morphology. In this work, we measure j*…

Astrophysics of Galaxies · Physics 2023-06-14 C. Pulsoni , O. Gerhard , S. M. Fall , M. Arnaboldi , A. I. Ennis , J. Hartke , L. Coccato , N. R. Napolitano

Recent studies of neutral atomic hydrogen (HI) in nearby galaxies found that all field disk galaxies are HI saturated, in that they carry roughly as much HI as permitted before this gas becomes gravitationally unstable. By taking this HI…

Astrophysics of Galaxies · Physics 2020-03-31 Jie Li , Danail Obreschkow , Claudia Lagos , Luca Cortese , Charlotte Welker , Robert Džudžar

The rotational properties of the visible and dark components of low-mass disk galaxies (vrot<=100 km/s) are investigated using the Swaters sample. The rotational parameter lambda'=lambda_DM*(j_d/m_d) is determined, where lambda_DM is the…

Astrophysics · Physics 2007-05-23 Andreas Burkert

We present the relation between stellar specific angular momentum $j_*$, stellar mass $M_*$, and bulge-to-total light ratio $\beta$ for THINGS, CALIFA and Romanowsky \& Fall datasets, exploring the existence of a fundamental plane between…

Astrophysics of Galaxies · Physics 2018-06-27 Sarah M. Sweet , David Fisher , Karl Glazebrook , Danail Obreschkow , Claudia Lagos , Liang Wang

We perform controlled N-Body/SPH simulations of disk galaxy formation by cooling a rotating gaseous mass distribution inside equilibrium cuspy spherical and triaxial dark matter halos. We systematically study the angular momentum transport…

Astrophysics · Physics 2008-11-26 Tobias Kaufmann , Lucio Mayer , James Wadsley , Joachim Stadel , Ben Moore

This study focuses on stars with masses above the Kraft break in the \textit{Kepler} field. Their rotational angular momenta are essentially the same as those at the zero-age main sequence. The angular momentum dissipation experienced by…

Astrophysics of Galaxies · Physics 2025-07-22 Yu-Fu Shen , Yan Xu , Yi-Bo Wang , Xiu-Lin Huang , Xing-Xing Hu , Qi Yuan

We study 379 central and 159 satellite early-type galaxies with two-dimensional kinematics from the integral-field survey Mapping Nearby Galaxies at APO (MaNGA) to determine how their angular momentum content depends on stellar and halo…

We measure the stellar specific angular momentum jstar=Jstar/Mstar in four nearby (z~0.1) disk galaxies that have stellar masses Mstar near the break M* of the galaxy mass function, but look like typical star-forming disks at z~2 in terms…

We analyze the angular momenta of massive star forming galaxies (SFGs) at the peak of the cosmic star formation epoch (z~0.8-2.6). Our sample of ~360 log(M*/Msun) ~ 9.3-11.8 SFGs is mainly based on the KMOS3D and SINS/zC-SINF surveys of…

We investigate the origin, the shape, the scatter, and the cosmic evolution in the observed relationship between specific angular momentum $j_\star$ and the stellar mass $M_\star$ in early-type (ETGs) and late-type galaxies (LTGs).…

Astrophysics of Galaxies · Physics 2017-07-26 Jingjing Shi , Andrea Lapi , Claudia Mancuso , Huiyuan Wang , Luigi Danese

We reassess the galaxy size-mass relation out to z~3 using a new definition of size and a sample of >29,000 galaxies from the 3D-HST, CANDELS, and COSMOS-DASH surveys. Instead of the half-light radius r_50 we use r_80, the radius containing…

Astrophysics of Galaxies · Physics 2019-10-01 Lamiya Mowla , Arjen van der Wel , Pieter van Dokkum , Tim Miller

The stellar mass, size and rotational velocity of galactic disks all grow from redshift ~2 to the present by amounts that are estimated from observationally derived scaling relations. The product of these three quantities, the angular…

Astrophysics of Galaxies · Physics 2020-04-08 Alvio Renzini

This work present high-precision measurements of the specific baryon angular momentum jb, contained in stars, atomic gas, and molecular gas, out to ~10 scale radii, in 16 nearby spiral galaxies of the THINGS sample. The accuracy of these…

Astrophysics of Galaxies · Physics 2014-06-19 Danail Obreschkow , Karl Glazebrook

We investigate the co-evolution of the angular momentum of Milky Way-like galaxies, their circumgalactic gas, and their dark matter halos using zoom-in simulations from the Figuring Out Gas & Galaxies in Enzo (FOGGIE) suite. We examine how…

We present new and archival atomic hydrogen (\hi) observations of \galnum\ of the most massive spiral galaxies in the local Universe ($M_\star>10^{11} \, \mathrm{M}_\odot$). From 3D kinematic modeling of the datacubes, we derive extended…

We compile and carrefully homogenize local galaxy samples with available information on stellar, $\rm HI$ and/or $\rm H_{2}$ masses, and morphology. After processing the information on upper limits in the case of non gas detections, we…