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相关论文: Modelling Starbursts in HII Galaxies: What do we n…

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We have computed a series of realistic and self-consistent models that reproduce the properties of HII galaxies. The emitted spectrum of HII galaxies is reproduced by means of the photoionization code CLOUDY, using as ionizing spectrum the…

天体物理学 · 物理学 2008-10-14 M. L. Martin-Manjon , M. Molla , A. I. Diaz , R. Terlevich

We have computed a series of realistic and self-consistent models of the emitted spectra of H{\sc ii} galaxies. Our models combine different codes of chemical evolution, evolutionary population synthesis and photoionization. The emitted…

天体物理学 · 物理学 2009-11-13 M. Martín Manjón , M. Mollá , A. I. Díaz , R. Terlevich

We have studied the viability of new theoretical models which combine a chemical evolution code, an evolutionary synthesis code and a photoionization code, to understand the star formation and evolution of H{\sc ii} galaxies. The emission…

天体物理学 · 物理学 2007-12-04 M. Martín Manjón , M. Mollá , A. I. Díaz

We analyze the stellar and nebular energy distributions of starbursts using our evolutionary synthesis model PEGASE coupled to the photoionization code CLOUDY. The originality of this study is to relate the evolution and the metallicity of…

天体物理学 · 物理学 2009-11-06 E. Moy , B. Rocca-Volmerange , M. Fioc

We use the self-consistent model technique developed by Mart\'in-Manj\'on et al. (2008) that combines the chemical evolution with stellar population synthesis and photo-ionization codes, to study the star formation scenarios capable of…

宇宙学与河外天体物理 · 物理学 2015-06-03 M. L. Martín-Manjón , M. Mollá , A. I. Díaz , R. Terlevich

We build, as far as theory will permit, self consistent model HII regions around central clusters of aging stars. These produce strong emission line diagnostics applicable to either individual HII regions in galaxies, or to the integrated…

We present a self-consistent model under a star-bursting scenario for H{\sc ii} galaxies, combining different codes of chemical evolution, evolutionary population synthesis and photoionization. The results obtained reproduce simultaneoulsy…

天体物理学 · 物理学 2007-12-05 M. L. Martín Manjón , M. Mollá , A. I. Díaz , R. Terlevich

We combine the the stellar spectral synthesis code Starburst99, the nebular modelling code MAPPINGSIII, and a 1-D dynamical evolution model of HII regions around massive clusters of young stars to generate improved models of the spectral…

天体物理学 · 物理学 2009-11-13 B. Groves , M. Dopita , R. Sutherland , L. Kewley , J. Fischera , C. Leitherer , B. Brandl , W. van Breugal

We present a UV to mid-IR spectral energy distribution study of a large sample of SDSS DR13 HII galaxies. These are selected as starburst (EW(H$\alpha) > 50$\AA) and for their high excitation locus in the upper-left region of the BPT…

星系天体物理 · 物理学 2021-02-18 Eduardo Telles , Jorge Melnick

In systems undergoing starbursts the evolution of the young stellar population is expected to drive changes in the emission line properties. This evolution is usually studied theoretically, with a combination of evolutionary synthesis…

天体物理学 · 物理学 2009-11-07 Roberto Cid Fernandes , Joao Rodrigo Souza Leao , Reiner Rodrigues Lacerda

We present a new model to compute the luminosity of emission lines in star forming galaxies and apply this in the semi-analytical galaxy formation code GALFORM. The model combines a pre-computed grid of HII region models with an empirical…

星系天体物理 · 物理学 2022-01-11 C. M. Baugh , C. G. Lacey , V. Gonzalez-Perez , G. Manzoni

We present a self-consistent study of the stellar populations and the ionized gas in a sample of 10 HII galaxies with, at least, four measured electron temperatures and a precise determination of ionic abundances following the "direct…

宇宙学与河外天体物理 · 物理学 2015-05-18 Enrique Perez-Montero , Ruben Garcia-Benito , Guillermo F. Hagele , Angeles I. Diaz

We study the gas emission of galaxies with active star formation, consisting mostly of HII galaxies and Starbursts, as well as some Seyfert 2s, and determine chemical and physical parameters. The data consist of 19 high signal-to-noise…

天体物理学 · 物理学 2009-07-22 D. Raimann , T. Storchi-Bergmann , E. Bica , J. Melnick , H. Schmitt

We study and compare different examples of stellar evolutionary synthesis input parameters used to produce photoionisation model grids using the MAPPINGS V modelling code. The aim of this study is to (a) explore the systematic effects of…

A spectrophotometric model able to compute the integrated spectrum of a galaxy, including the contribution both of the stellar populations and of the ionized interstellar gas of the HII regions powered by young hot stars, has been used to…

天体物理学 · 物理学 2009-08-17 G. Barbaro , B. M. Poggianti

Photoionization models of HII regions require as input a description of the ionizing SED and of the gas distribution, in terms of ionization parameter U and chemical abundances (e.g. O/H and N/O). A strong degeneracy exists between the…

This is the second paper of a series reporting the results from the PopStar evolutionary synthesis models. Here we present synthetic emission line spectra of H{\sc ii} regions photoionized by young star clusters, for seven values of cluster…

宇宙学与河外天体物理 · 物理学 2015-05-14 M. L. Martín-Manjón , M. L. García-Vargas , M. Mollá , A. I. Díaz

The shape of the OB-star spectral energy distribution is a critical component in many diagnostics of the ISM and galaxy properties. We use single-star HII regions from the LMC to quantitatively examine the ionizing SEDs from widely…

星系天体物理 · 物理学 2013-06-28 Jordan Zastrow , M. S. Oey , E. W. Pellegrini

We propose a methodology to perform a self-consistent analysis of the physical properties of the emitting gas of HII galaxies adequate to the data that can be obtained with the XXI century technology. This methodology requires the…

星系天体物理 · 物理学 2009-01-21 G. F. Hagele , A. I. Diaz , E. Terlevich , E. Perez-Montero , R. Terlevich , M. V. Cardaci

We examine, from a theoretical viewpoint, how the physical parameters of HII regions are controlled in both normal galaxies and in starburst environments. These parameters are the HII region luminosity function, the time-dependent size, the…

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