中文
相关论文

相关论文: Spatially resolved stellar-to-total dynamical mass…

200 篇论文

We have used a large sample of low-inclination spiral galaxies with radially-resolved optical and near-infrared photometry to investigate trends in star formation history with radius as a function of galaxy structural parameters. A maximum…

天体物理学 · 物理学 2009-05-29 Eric F. Bell , Roelof S. de Jong

We analyze the stellar mass-to-light ratio (M/L) gradients in a large sample of local galaxies taken from the Sloan Digital Sky Survey, spanning a wide range of stellar masses and morphological types. As suggested by the well known…

宇宙学与河外天体物理 · 物理学 2015-05-28 C. Tortora , N. R. Napolitano , A. J. Romanowsky , Ph. Jetzer , V. F. Cardone , M. Capaccioli

We investigate the stellar population properties of bulges and disks separately for 34 S0s using integral field spectroscopy from the Calar Alto Legacy Integral Field Area survey. The spatially resolved stellar age and metallicity of bulge…

星系天体物理 · 物理学 2021-11-17 Mina Pak , Joon Hyeop Lee , Sree Oh , Francesco D'Eugenio , Matthew Colless , Hyunjin Jeong , Woong-Seob Jeong

We analyse a sample of massive disk galaxies selected from the SDSS-IV/MaNGA survey to investigate how the evolution of these galaxies depends on their stellar and halo masses. We applied a semi-analytic spectral fitting approach to the…

星系天体物理 · 物理学 2024-04-26 Shuang Zhou , Alfonso Aragón-Salamanca , Michael Merrifield

A simple, observationally-motivated model is presented for understanding how halo masses, galaxy stellar masses, and star formation rates are related, and how these relations evolve with time. The relation between halo mass and galaxy…

天体物理学 · 物理学 2014-11-18 Charlie Conroy , Risa H. Wechsler

In this work we study the stellar mass -- metallicity relation (MZR) of an extended sample of star-forming galaxies in the local Universe and its possible dependence with the star formation rate (SFR). A sample of $\sim$195000 Sloan Digital…

We present a spatially resolved stellar population analysis of 61 jellyfish galaxies and 47 control galaxies observed with ESO/MUSE attempting to understand the general trends of the stellar populations as a function of the stripping…

The evolution of stellar disks is of great importance for understanding many aspects of galaxy formation. In this work we perform stellar population synthesis on radially resolved photometry of 564 disk galaxies from the SDSS DR5, selected…

天体物理学 · 物理学 2009-11-13 Ching-Wa Yip , Rosemary F. G. Wyse

We derive the stellar-to-halo mass relation (SHMR), namely $f_\star\propto M_\star/M_{\rm h}$ versus $M_\star$ and $M_{\rm h}$, for early-type galaxies from their near-IR luminosities (for $M_\star$) and the position-velocity distributions…

星系天体物理 · 物理学 2021-05-26 Lorenzo Posti , S. Michael Fall

We aim to analyse the metallicity and the ages of the stellar halos of low-mass galaxies to better understand their formation history. We use 17 simulated low-mass galaxies from the Auriga Project ($\sim 3 \times 10^8 \, M_\odot \leq M_*…

We examine the present-day total stellar-to-halo mass (SHM) ratio as a function of halo mass for a new sample of simulated field galaxies using fully cosmological, LCDM, high resolution SPH + N-Body simulations.These simulations include an…

宇宙学与河外天体物理 · 物理学 2015-06-11 Ferah Munshi , F. Governato , A. M. Brooks , C. Christensen , S. Shen , S. Loebman , B. Moster , T. Quinn , J. Wadsley

We present a study of the stellar populations of a sample of 39 local, field early-type galaxies whose HI properties are known from interferometric data. Our aim is to understand whether stellar age and chemical composition depend on the HI…

天体物理学 · 物理学 2009-11-13 Paolo Serra , Scott C. Trager , Tom A. Oosterloo , Raffaella Morganti

Nearby galaxies are the end result of their cosmological evolution, which is predicted to be influenced by the growth of their host dark matter halos. This co-evolution potentially leaves signatures in present-day observed galaxy…

星系天体物理 · 物理学 2022-12-07 Laura Scholz-Diaz , Ignacio Martin-Navarro , Jesus Falcon-Barroso

Using a large galaxy group catalogue constructed from the SDSS, we investigate the correlation between various galaxy properties and halo mass. We split the population of galaxies in early types, late types, and intermediate types, based on…

天体物理学 · 物理学 2009-06-16 Simone M. Weinmann , Frank C. van den Bosch , Xiaohu Yang , H. J. Mo

We examine correlations between the masses, sizes, and star formation histories for a large sample of low-redshift early-type galaxies, using a simple suite of dynamical and stellar populations models. We confirm an anti-correlation between…

宇宙学与河外天体物理 · 物理学 2015-05-18 Nicola R. Napolitano , Aaron J. Romanowsky , Crescenzo Tortora

For any assumed stellar Initial Mass Function, the Sloan Digital Sky Survey (SDSS) gives a precise determination of the stellar mass function of galaxies for 10^8 M_sun < M_* < 10^12 M_sun. Within the concordance LCDM cosmology, the…

宇宙学与河外天体物理 · 物理学 2010-10-28 Qi Guo , Simon White , Cheng Li , Michael Boylan-Kolchin

We investigate the growth of massive quiescent galaxies at $z<0.6$ based on the Sloan Digital Sky Survey and the Smithsonian Hectospec Lensing Survey---two magnitude limited spectroscopic surveys of high data quality and completeness. Our…

星系天体物理 · 物理学 2019-08-07 H. Jabran Zahid , Margaret J. Geller , Ivana Damjanov , Jubee Sohn

Context. The assembly history of the stellar component of a massive elliptical galaxy is closely related to that of its dark matter halo. Measuring how the properties of galaxies correlate with their halo mass can help understand their…

We investigate the use of the halo mass-gap statistic --- defined as the logarithmic difference in mass between the host halo and its most massive satellite subhalo --- as a probe of halo age and concentration. A cosmological N-body…

宇宙学与河外天体物理 · 物理学 2015-06-16 Alis J. Deason , Charlie Conroy , Andrew R. Wetzel , Jeremy L. Tinker