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相关论文: The CALIFA survey: A panoramic view on galaxy prop…

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We present the Fabry-Perot observations obtained for a new set of 108 galaxies that completes the GHASP survey (Gassendi HAlpha survey of SPirals). The GHASP survey consists of 3D Ha data cubes for 203 spiral and irregular galaxies,…

天体物理学 · 物理学 2009-11-13 B. Epinat , P. Amram , M. Marcelin , C. Balkowski , O. Daigle , O. Hernandez , L. Chemin , C. Carignan , J. -L. Gach , P. Balard

We have determined the H{\alpha} emission line radial profiles for a sample of 86 face-on galaxies observed in the CALIFA survey and analyzed with the Pipe3D pipeline. From a visual analysis we propose a two step classification of these…

星系天体物理 · 物理学 2018-10-22 Patricia Martins de Novais , Laerte Sodré

We present a novel method to retrieve the chemical structure of galaxies using integral field spectroscopy data through the stellar Metallicity Distribution Function (MDF). This is the probability distribution of observing stellar…

We analysed the optical spectra of HII regions extracted from a sample of 350 galaxies of the CALIFA survey. We calculated total O/H abundances and, for the first time, N/O ratios using the semi-empirical routine HII-CHI-mistry, which,…

A sample of 279 massive red spirals was selected optically by Guo et al. (2020), among which 166 galaxies have been observed by the ALFALFA survey. In this work, we observe HI content of the rest 113 massive red spiral galaxies using the…

星系天体物理 · 物理学 2022-09-21 Lan Wang , Zheng Zheng , Cai-Na Hao , Rui Guo , Ran Li , Lei Qian , Lizhi Xie , Yong Shi , Hu Zou , Yixian Cao , Yanmei Chen , Xiaoyang Xia

We review the physical properties of nearby, relatively luminous galaxies, using results from newly available massive data sets together with more detailed observations. First, we present the global distribution of properties, including the…

星系天体物理 · 物理学 2015-05-14 Michael R. Blanton , John Moustakas

We present a study of the ionized gas in a sample of 65 nearby early-type galaxies, for which we have acquired optical intermediate-resolution spectra. Emission lines are detected in ~89 % of the sample. The incidence of emission appears…

宇宙学与河外天体物理 · 物理学 2009-09-23 F. Annibali , A. Bressan , R. Rampazzo , W. W. Zeilinger

The I-GALFA survey is mapping all the HI in the inner Galactic disk visible to the Arecibo 305m telescope within 10 degrees of the Galactic plane (longitudes of 32 to 77 deg at b=0 deg). The survey, which will obtain 1.3 million independent…

We present an HI-optical catalog of ~ 30,000 galaxies based on the 100% complete Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey combined with data from the Sloan Digital Sky Survey (SDSS). Our goal is to facilitate public…

The AMIGA project (Analysis of the Interstellar Medium of Isolated Galaxies) is compiling a multiwavelength database of isolated galaxies that includes optical (B and Halpha), infrared (FIR and NIR) and radio (continuum plus HI and CO…

天体物理学 · 物理学 2009-11-11 L. Verdes-Montenegro , J. Sulentic , U. Lisenfeld , S. Leon , D. Espada , E. Garcia , J. Sabater , S. Verley

Outflows play a major role in the evolution of galaxies. However, we do not have yet a complete picture of their properties (extension, geometry, orientation and clumpiness). For low-luminosity Active Galactic Nuclei (AGNs), in particular,…

星系天体物理 · 物理学 2022-04-27 Laura Hermosa Muñoz , Isabel Márquez , Sara Cazzoli , Josefa Masegosa , Beatriz Agís-González

We present an extensive exploration of the impact of 29 physical parameters in the oxygen abundance for a sample of 299 star-forming galaxies extracted from the extended CALIFA sample. We corroborate that the stellar mass is the physical…

Spectra of galaxies contain a wealth of information about the stellar populations from which they are made. With integral-field unit (IFU) surveys, such data can be used to map out stellar population properties across the face of a galaxy,…

Making use of HI 21 cm line measurements from the ALFALFA survey (alpha.40) and photometry from the Sloan Digital Sky Survey (SDSS) and GALEX, we investigate the global scaling relations and fundamental planes linking stars and gas for a…

宇宙学与河外天体物理 · 物理学 2015-06-05 Shan Huang , Martha P. Haynes , Riccardo Giovanelli , Jarle Brinchmann

The 2dF Galaxy Redshift Survey has now been completed and has mapped the three-dimensional distribution, and hence clustering, of galaxies in exquisite detail over an unprecedentedly large ($\sim 10^{8} h^{-3}$ Mpc$^{3}$) volume of the…

天体物理学 · 物理学 2007-05-23 Warrick Couch , Matthew Colless , Roberto De Propris

In this work we present a set of synthetic observations that mimic the properties of the Integral Field Spectroscopy (IFS) survey CALIFA, generated using radiative transfer techniques applied to hydrodynamical simulations of galaxies in a…

Contrastive learning (CL) has emerged as a potent tool for building meaningful latent representations of galaxy properties across a broad spectrum of wavelengths, ranging from optical and infrared to radio frequencies. These representations…

The aim of this paper is to characterize the radial structure of the star formation rate (SFR) in galaxies in the nearby Universe as represented by the CALIFA survey. The sample under study contains 416 galaxies observed with IFS, covering…

We discuss the design and current status of the CIZA survey, the first systematic X-ray search for clusters of galaxies in the Galactic plane region. So far, we have compiled a sample of more than 70 X-ray selected clusters at |b|<20 deg,…

天体物理学 · 物理学 2007-05-23 Harald Ebeling , Christopher Mullis , Brent Tully

We examine the properties of galaxies in the Galaxies and Mass Assembly (GAMA) survey located in voids with radii $>10~h^{-1}$ Mpc. Utilising the GAMA equatorial survey, 592 void galaxies are identified out to z~0.1 brighter than $M_{r} =…