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相关论文: A universal relationship between stellar masses an…

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We compare estimates of stellar mass, Mstar, and dynamical mass,Mdyn,for a sample of galaxies from the Sloan Digital Sky Survey (SDSS). We assume dynamical homology (i.e., Mdyn = dispersion**2 * Reff, and we find a tight but strongly…

宇宙学与河外天体物理 · 物理学 2015-05-19 Edward N Taylor , Marijn Franx , Jarle Brinchmann , Arjen van der Wel , Pieter G. van Dokkum

We present scaling relations between stellar-mass (Mstar) and the size of galaxies at 0.3 < z < 3 for half- (R_50) and 90 percent-light (R_90) radii, using a deep K-band selected catalogue taken with the Subaru Telescope and MOIRCS in the…

宇宙学与河外天体物理 · 物理学 2015-06-04 Takashi Ichikawa , Masaru Kajisawa , Mohammad Akhlaghi

We use the stellar kinematics for $2458$ galaxies from the MaNGA survey to explore dynamical scaling relations between the stellar mass $M_{\star}$ and the total velocity parameter at the effective radius, $R_e$, defined as…

The widely known relation between stellar mass and gas metallicity (mass-metallicity relation, MZR) in galaxies is often ascribed to the higher capability of more massive systems to retain metals against the action of galactic outflows. In…

星系天体物理 · 物理学 2023-03-29 William M. Baker , Roberto Maiolino

The relationship between the already formed stellar mass in a galaxy and the gas reservoir of neutral atomic hydrogen, is a key element in our understanding of how gas is turned into stars in galaxy haloes. In this paper, we measure the…

We derive stellar masses from SED fitting to rest-frame optical and UV fluxes for 401 star-forming galaxies at z 4, 5, and 6 from Hubble-WFC3/IR observations of the ERS combined with the deep GOODS-S Spitzer/IRAC data (and include a…

宇宙学与河外天体物理 · 物理学 2015-05-19 Valentino Gonzalez , Ivo Labbe , Rychard Bouwens , Garth Illingworth , Marijn Franx , Mariska Kriek

Peculiar motion of galaxies probes the structure growth in the Universe. In this study we employ the galaxy stellar mass-binding energy (massE) relation with only two nuisance parameters to build the largest peculiar-velocity (PV) catalog…

宇宙学与河外天体物理 · 物理学 2024-01-26 Yong Shi , Pengjie Zhang , Shude Mao , Qiusheng Gu

The scaling relation between stellar mass ($M_{*}$) and physical effective radius ($r_{e}$) has been well-studied using wide spectroscopic surveys. However, these surveys suffer from severe surface brightness incompleteness in the dwarf…

星系天体物理 · 物理学 2021-07-07 Daniel J. Prole

We present analysis of the near-infrared spectra of 114 rest-frame UV-selected star-forming galaxies at z~2. By combining the H-alpha spectra with photometric measurements from observed 0.3--8 micron, we assess the relationships between…

In this empirical work, we aim to quantify the systematic uncertainties in stellar mass $(M_\star)$ estimates made from spectral energy distribution (SED) fitting through stellar population synthesis (SPS), for galaxies in the local…

We consider the relationship between the total HI mass in late-type galaxies and the kinematic properties of their disks. The mass $M_HI$ for galaxies with a wide variety of properties, from dwarf dIrr galaxies with active star formation to…

天体物理学 · 物理学 2009-11-11 A. V. Zasov , A. A. Smirnova

The continuity equation is developed for the stellar mass content of galaxies, and exploited to derive the stellar mass function of active and quiescent galaxies over the redshift range $z\sim 0-8$. The continuity equation requires two…

星系天体物理 · 物理学 2018-05-18 A. Lapi , Claudia Mancuso , A. Bressan , L. Danese

I review our understanding of classic dynamical scaling relations, relating luminosity, size and kinematics of early-type galaxies. Using unbiased determinations of galaxy mass profiles from stellar dynamical models, a simple picture has…

星系天体物理 · 物理学 2015-04-14 Michele Cappellari

We study the mass-metallicity relation of galaxies in pairs and in isolation taken from the SDSS-DR4 using the stellar masses and oxygen abundances derived by Tremonti et al. (2004). Close galaxy pairs, defined by projected separation r_p <…

天体物理学 · 物理学 2009-11-13 L. Michel-Dansac , D. G. Lambas , M. S. Alonso , P. Tissera

Galaxy properties are known to correlate most tightly with the galaxy effective stellar velocity dispersion $\sigma_{\rm e}$. Here we look for {\em additional} trends at fixed $\sigma_{\rm e}$ using 1339 galaxies ($M_\ast \gtrsim…

星系天体物理 · 物理学 2020-06-10 Shengdong Lu , Michele Cappellari , Shude Mao , Junqiang Ge , Ran Li

For many massive compact galaxies, their dynamical masses ($M_\mathrm{dyn} \propto \sigma^2 r_\mathrm{e}$) are lower than their stellar masses ($M_\star$). We analyse the unphysical mass discrepancy $M_\star / M_\mathrm{dyn} > 1$ on a…

星系天体物理 · 物理学 2015-02-02 L. Peralta de Arriba , M. Balcells , J. Falcón-Barroso , I. Trujillo

Stellar mass is a fundamental parameter that is key to our understanding of stellar formation and evolution, as well as the characterization of nearby exoplanet companions. Historically, stellar masses have been derived from long-term…

太阳与恒星天体物理 · 物理学 2022-10-05 Mark R. Giovinazzi , Cullen H. Blake

The properties of the stellar populations in a galaxy are known to correlate with the amount and the distribution of stellar mass. We take advantage of the maps of light-weighted mean stellar age Agewr and metallicity Z*wr for a sample of…

星系天体物理 · 物理学 2022-02-23 Stefano Zibetti , Anna R. Gallazzi

We support, with new fitting instruments and the analysis of more recent experimental data, the proposal of a relationship between the mass of a Supermassive Black Hole (SMBH) and the kinetic energy of random motions in the host elliptical…

天体物理学 · 物理学 2008-11-26 A. Feoli , D. Mele

We take advantage of the first data from the Sydney-AAO Multi-object Integral field (SAMI) Galaxy Survey to investigate the relation between the kinematics of gas and stars, and stellar mass in a comprehensive sample of nearby galaxies. We…

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