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相关论文: Massive star formation and evolution in starburst …

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The physical conditions in typical starburst galaxies are investigated through critical infrared (IR) line ratios, as previously suggested by Lutz et al. (1998, A&A, 333, L75). The calculations by a composite model which consistently…

天体物理学 · 物理学 2007-05-23 Sueli M. Viegas , Marcella Contini , Thierry Contini

(Abridged) We have performed a comprehensive multiwavelength analysis of a sample of 20 starburst galaxies that show the presence of a substantial population of massive stars. The main aims are the study of the massive star formation and…

天体物理学 · 物理学 2011-08-31 Angel R. Lopez-Sanchez , Cesar Esteban

We present spectroscopy of MIR emission lines in twelve starburst regions, located in eleven starburst galaxies, for which a significant number of lines between 2.38 and 45micron were observed with the ISO Short Wavelength Spectrometer,…

天体物理学 · 物理学 2011-05-23 Aprajita Verma , Dieter Lutz , Eckhard Sturm , Amiel Sternberg , Reinhard Genzel , William Vacca

Determining the properties of starbursts requires spectral diagnostics of their ultraviolet radiation fields, to test whether very massive stars are present. We test several such diagnostics, using new models of line ratio behavior…

天体物理学 · 物理学 2009-11-10 J. R. Rigby , G. H. Rieke

We have obtained long-slit spectra of NGC 253 in the J, H, K, and N bands, broadband images in the J, H, and Ks bands, narrowband images centered at the wavelengths of BrGamma and H2(1,0)S(1), and imaging spectroscopy centered on…

天体物理学 · 物理学 2009-10-30 C. W. Engelbracht , M. J. Rieke , G. H. Rieke , D. M. Kelly , J. M. Achtermann

Using data from the mid-infrared to millimeter wavelengths for individual galaxies and for stacked ensembles at 0.5<z<2, we derive robust estimates of dust masses (Mdust) for main sequence (MS) galaxies, which obey a tight correlation…

We present new observations of the central regions of the starburst galaxy M82 consisting of near-infrared H- and K-band integral field spectroscopy from the MPE 3D instrument, and 2.4-45 micron spectroscopy from the Short Wavelength…

天体物理学 · 物理学 2009-11-06 N. M. Forster Schreiber , R. Genzel , D. Lutz , D. Kunze , A. Sternberg

Using data from the IMACS Cluster Building Survey and from nearby galaxy surveys, we examine the evolution of the rate of star formation in field galaxies from $ z = 0.60$ to the present. Fitting the luminosity function to a standard…

宇宙学与河外天体物理 · 物理学 2015-06-15 Augustus Oemler , Alan Dressler , Michael G. Gladders , Jacopo Fritz , Bianca M. Poggianti , Benedetta Vulcani , Louis Abramson

We present a simple model of the infra-red universe, based as much as possible on local observations. We model the luminosity and number evolution of disk and starburst galaxies, including the effects of dust, gas and spectral evolution.…

天体物理学 · 物理学 2009-10-31 Jonathan C. Tan , Joe Silk , Christophe Balland

We present a spectroscopic catalogue of 40 luminous starburst galaxies at z=0.7--1.7 (median z=1.3). 19 of these are submillimetre galaxies (SMGs) and 21 are submillimetre-faint radio galaxies (SFRGs). This sample helps to fill in the…

宇宙学与河外天体物理 · 物理学 2015-05-30 Manda Banerji , Scott C. Chapman , Ian Smail , S. Alaghband-Zadeh , A. M. Swinbank , J. S. Dunlop , R. J. Ivison , A. W. Blain

We study in detail the properties of the stellar populations of 111 massive ($\log(M_{\star}/\mathrm{M}_\odot) \ge 10)$ dusty (FIR-selected) starburst ($SFR/SFR_\mathrm{MS}>2$) galaxies at $0.7<z<1.2$. For that purpose, we use…

We present illustrative models for the UV to millimeter emission of starburst galaxies which are treated as an ensemble of optically thick giant molecular clouds (GMCs) centrally illuminated by recently formed stars. The models follow the…

天体物理学 · 物理学 2009-10-31 A. Efstathiou , M. Rowan-Robinson , R. Siebenmorgen

The reddening properties and the star formation history of a sample of 19 starburst galaxies are investigated using multiwavelength spectroscopy and infrared broad band photometry. The difference in reddening between the ionized gas and the…

天体物理学 · 物理学 2008-11-26 Daniela Calzetti

We have used 4000 \AA\ break and H$\delta_A$ indices in combination with SFR/M* derived from emission line flux measurements, to constrain the recent star formation histories of galaxies with stellar masses in the range 10**8-10**10 Msol.…

星系天体物理 · 物理学 2014-02-03 Guinevere Kauffmann

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 measurements of the mean mid-infrared-to-submillimeter flux densities of massive (M\ast \approx 2 \times 10^11 Msun) galaxies at redshifts 1.7 < z < 2.9, obtained by stacking positions of known objects taken from the GOODS NICMOS…

We compute chemical evolution models to constrain the mode and the history of star formation in starburst galaxies as a whole, i.e. over a large range of mass and metallicity. To this end, we investigate the origin of the dispersion…

天体物理学 · 物理学 2009-11-07 M. Mouhcine , T. Contini

We investigate the properties of dust and dust-to-gas ratios in different starburst regions of luminous infrared galaxies (LIGs). We refer to the sample of seven LIGs recently observed in the mid-infrared by Soifer et al. (2001) using the…

天体物理学 · 物理学 2008-11-26 Marcella Contini , Thierry Contini

We present the data and our analysis of MIR fine-structure emission lines detected in Spitzer/IRS high-res spectra of 202 local LIRGs observed as part of the GOALS project. We detect emission lines of [SIV], [NeII], [NeV], [NeIII],…

All measurements of cosmic star formation must assume an initial distribution of stellar masses -- the stellar initial mass function -- in order to extrapolate from the star-formation rate measured for typically rare, massive stars (> 8…

星系天体物理 · 物理学 2018-07-04 Zhi-Yu Zhang , D. Romano , R. J. Ivison , P. P. Papadopoulos , F. Matteucci
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