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相关论文: Barred Galaxies in the Abell 901/2 Supercluster wi…

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We present a study of galaxies in the STAGES survey of the Abell 901/902 supercluster at z~0.165, based on HST ACS F606W, COMBO-17, Spitzer 24um, XMM-Newton X-ray, and gravitational lensing maps. We characterize galaxies with strong,…

We present a comprehensive study of bar structures in the local Universe using data from the DESI Legacy Imaging Surveys. Through isophotal analysis of 232,142 galaxies, we identify bars and classify them into strong and weak categories…

星系天体物理 · 物理学 2025-03-31 Wenwen Wang , Zhimin Zhou

We analyze photometric properties of 1384 cluster galaxies as a function of the normalized distance to cluster center. These galaxies were selected in the central region ($r/r_{200} \leq$ 0.8) of 14 southern Abell clusters chosen from the…

天体物理学 · 物理学 2009-11-11 V. Coenda , H. Muriel , C. J. Donzelli , H. Quintana , L. Infante , D. G. Lambas

We present an analysis of the environmental dependence of bars and bulges in disc galaxies, using a volume-limited catalogue of 15810 galaxies at z<0.06 from the Sloan Digital Sky Survey with visual morphologies from the Galaxy Zoo 2…

We present a non-parametric method for decomposition of the light of disk galaxies into disk, bulge and bar components. We have developed and tested the method on a sample of 68 disk galaxies for which we have acquired I-band photometry.…

天体物理学 · 物理学 2008-11-26 A. S. Reese , T. B. Williams , J. A. Sellwood , Eric I. Barnes , Brian A. Powell

One third of present-day spirals host optically visible strong bars that drive their dynamical evolution. However, the fundamental question of how bars evolve over cosmological times has yet to be addressed, and even the frequency of bars…

We present data for a sample of 45 spiral galaxies over a range of Hubble types, imaged in the near-IR J and K bands. Parameters are calculated describing the bulge, disk and bar K-band light distributions, and we look for correlations…

天体物理学 · 物理学 2007-05-23 M. S. Seigar , P. A. James

We study in detail how the barred galaxy fraction varies as a function of luminosity, HI gas mass, morphology and color in the Virgo cluster in order to provide a well defined, statistically robust measurement of the bar fraction in the…

宇宙学与河外天体物理 · 物理学 2010-02-18 Lea Giordano , Kim-Vy H. Tran , Ben Moore , Amelie Saintonge

We aim to unravel the interplay between bars, star formation (SF), and active galactic nuclei (AGNs) in barred galaxies. To this end, we utilize the SDSS DR12 to select a sample of nearby (0.02 < z < 0.06) disk galaxies that are suitable…

星系天体物理 · 物理学 2023-06-07 Woong-Bae G. Zee , Sanjaya Paudel , Jun-Sung Moon , Suk-Jin Yoon

We use 3.6 $\mu$m photometry from the Spitzer Survey of Stellar Structure in Galaxies (S$^{4}$G) to trace the stellar distribution in nearby disk galaxies ($z\approx0$) with total stellar masses $10^{8.5}\lesssim…

星系天体物理 · 物理学 2016-12-07 Simón Díaz-García , Heikki Salo , Eija Laurikainen

We present the first estimate of the observed fraction and properties of bars out to $ z\sim4$ using $\textit{JWST}$ CEERS NIRCam images. We analyze 1770 galaxies with $M_\star > 10^{10} M_\odot$ at $0.5 \leq z \leq 4$ and identify barred…

We investigate how the environment of a dynamically unrelaxed galaxy cluster influences the structure and dynamics of stellar bars. In particular, we examine cluster-centric variations in normalised bar size and bar pattern speed in Abell…

星系天体物理 · 物理学 2026-05-28 Chandan Watts , Sudhanshu Barway , Mousumi Das , Ewa L. Lokas

Context. Bars are elongated structures developed by a large fraction of disk galaxies in their central few kiloparsecs. However, the bar formation process is still not fully understood, particularly the role played by the galaxy environment…

We study the clustering properties of barred galaxies using data from the Sloan Digital Sky Survey (SDSS). We compute projected redshift-space two-point cross-correlation functions w_p(r_p) for a sample of nearly 1000 galaxies for which we…

宇宙学与河外天体物理 · 物理学 2015-05-13 Cheng Li , Dimitri A. Gadotti , Shude Mao , Guinevere Kauffmann

This study uses r-band images from the Eighth Data Release of the Sloan Digital Sky Survey (SDSS DR8) to study bars in lenticular (S0) galaxies in one of the nearest rich cluster environments, the Coma cluster. We develop techniques for bar…

星系天体物理 · 物理学 2015-06-18 George B. Lansbury , John R. Lucey , Russell J. Smith

Bar-like structures were investigated in a sample of 186 disk galaxies larger than 0.5 arcsec that are in the I-band image of the Tadpole galaxy taken with the HST ACS. We found 22 clear cases of barred galaxies, 21 galaxies with small bars…

天体物理学 · 物理学 2009-11-10 Bruce G. Elmegreen , Debra Meloy Elmegreen , Amelia C. Hirst

We present a study of the bar fraction in the Coma cluster galaxies based on a sample of ~190 galaxies selected from the SDSS-DR6 and observed with the Hubble Space Telescope (HST) Advanced Camera for Survey (ACS). The unprecedented…

宇宙学与河外天体物理 · 物理学 2015-05-20 J. Mendez-Abreu , R. Sanchez-Janssen , J. A. L. Aguerri

Wide-field optical and near--IR ($JHK$) imaging is presented for two rich galaxy clusters: Abell~370 at $z=0.374$ and Abell~851 (Cl0939+47) at $z=0.407$. Galaxy catalogs selected from the near--IR images are 90\% complete to approximately…

天体物理学 · 物理学 2009-10-28 S. A. Stanford , P. R. M. Eisenhardt , Mark Dickinson

Properties of bars and bulges in the Hubble sequence are discussed, based on the analysis of 216 disk galaxies (S0s and spirals from NIRS0S and OSUBGS surveys, respectively). For that purpose we have collected together, and completed when…

天体物理学 · 物理学 2009-11-13 E. Laurikainen , H. Salo , R. Buta , J. H. Knapen

We present the results of a new and improved study of the morphological and spectral evolution of massive galaxies over the redshift range 1<z<3. Our analysis is based on a bulge-disk decomposition of 396 galaxies with Mstar>10^11 Msolar…