中文
相关论文

相关论文: Understanding galaxy formation and evolution throu…

200 篇论文

Deep submillimetre surveys have successfully detected distant, star-forming galaxies, enshrouded in vast quantities of dust and which emit most of their energy at far infrared wavelengths. These luminous galaxies are an important…

天体物理学 · 物理学 2009-10-31 S. C. Chapman , E. Richards , G. Lewis , G. Wilson , A. Barger

[Abridged] We develop a simple star formation model whose goal is to interpret the emerging body of observational data on star-forming galaxies at z>~6. The efficiency and duty cycle of the star formation activity within dark matter halos…

天体物理学 · 物理学 2009-11-13 Daniel P. Stark , Abraham Loeb , Richard S. Ellis

The bulk of the present-day stellar mass was formed in galaxies when the universe was less than half its current age (i.e., $1 \lesssim z \lesssim 3$). While this likely marks one of the most critical time periods for galaxy evolution, we…

星系天体物理 · 物理学 2022-07-19 Eric J. Murphy

As a byproduct of its search for the first star forming galaxies, NGST will obtain high-quality spectra for thousands of galaxies in the redshift range z = 0 - 6 and beyond. Most of the galaxies will possess strong emission-line spectra,…

天体物理学 · 物理学 2007-05-23 R. C. Kennicutt

We calculate the observable properties of the most massive high-redshift galaxies in the hierarchical formation scenario where stellar spheroid and supermassive black hole growth are fueled by gas-rich mergers. Combining high-resolution…

天体物理学 · 物理学 2010-11-05 Brant Robertson , Yuexing Li , Thomas J. Cox , Lars Hernquist , Philip F. Hopkins

The quest to discover the most distant galaxies has developed rapidly in the last decade. We are now exploring redshifts of 6 and beyond, when the Universe was less than a billion years old, an epoch when the previously-neutral…

宇宙学与河外天体物理 · 物理学 2009-09-10 Andrew Bunker , Elizabeth Stanway , Richard Ellis , Mark Lacy , Richard McMahon , Laurence Eyles , Daniel Stark , Kuenley Chiu

Deep near-infrared imaging surveys allow us to select and study distant galaxies in the rest-frame optical, and have transformed our understanding of the early Universe. As the vast majority of K- or IRAC-selected galaxies is too faint for…

When, and how, did the first galaxies and supermassive black holes (SMBH) form, and how did they reionization the Universe? First galaxy formation and cosmic reionization are among the last frontiers in studies of cosmic structure…

We review our current knowledge of the population of high-redshift sub-mm/mm galaxies, with particular emphasis on recent results from the SCUBA HAlf Degree Extragalactic Survey (SHADES). All available evidence indicates that these objects…

天体物理学 · 物理学 2008-10-09 M. Cirasuolo , J. S. Dunlop

We present a new measurement of the evolving galaxy far-IR luminosity function (LF) extending out to redshifts z~5, with resulting implications for the level of dust-obscured star-formation density in the young Universe. To achieve this we…

Though half of cosmic starlight is absorbed by dust and reradiated at long wavelengths (3$\mu$m-3mm), constraints on the infrared through millimeter galaxy luminosity function (the `IRLF') are poor in comparison to the rest-frame…

In the low redshift Universe (z<0.3), our view of galaxy evolution is primarily based on fibre optic spectroscopy surveys. Elaborate methods have been developed to address aperture effects when fixed aperture sizes only probe the inner…

Star formation is arguably the most important physical process in the cosmos. It is a fundamental driver of galaxy evolution and the ultimate source of most of the energy emitted by galaxies. A correct interpretation of star formation rate…

We present the results of deep near-infrared spectroscopy of seven submillimetre-selected galaxies from the SCUBA 8-mJy and CUDSS surveys. These galaxies were selected because they are too faint to be accessible to optical spectrographs on…

天体物理学 · 物理学 2009-11-10 Chris Simpson , J. S. Dunlop , S. A. Eales , R. J. Ivison , S. E. Scott , S. J. Lilly , T. M. A. Webb

The high redshift observations of galaxies now becoming available from the Hubble Space Telescope and from large ground based telescopes are opening fresh windows on galaxy formation. Semianalytic models of galaxy formation provide us with…

天体物理学 · 物理学 2007-05-23 C. M. Baugh , C. G. Lacey , S. Cole , C. S. Frenk

We discuss various aspects of centimeter and millimeter wavelength continuum and line observations of high redshift star forming galaxies. Perhaps the most important lesson is that sensitive observations at submm through cm wavelengths…

天体物理学 · 物理学 2009-09-25 C. L. Carilli , K. M. Menten , M. S. Yun , F. Bertoldi , F. Owen , A. Dey

Dust emission at sub-millimetre wavelengths allows us to trace the early phases of star formation in the Universe. In order to understand the physical processes involved in this mode of star formation, it is essential to gain knowledge…

The Square Kilometer Array (SKA) will enable studies of star formation in nearby galaxies with a level of detail never before possible outside of the Milky Way. Because the earliest stages of stellar evolution are often inaccessible at…

天体物理学 · 物理学 2009-11-10 Kelsey E. Johnson

Observations of the high redshift Universe, interpreted in the context of a new generation of computer simulated model Universes, are providing new insights into the processes by which galaxies and quasars form and evolve, as well as the…

天体物理学 · 物理学 2007-05-23 Jill Bechtold , Richard Elston , Howard K. C. Yee , Erica Ellingson , Roc M. Cutri

[Abridged] We use the deepest existing mid- and far-infrared observations (reaching ~3 mJy at 70 um) obtained with Spitzer in the GOODS and FIDEL fields to derive the evolution of the rest-frame 15 um, 35 um, and total infrared luminosity…

宇宙学与河外天体物理 · 物理学 2009-11-13 B. Magnelli , D. Elbaz , R. R Chary , M. Dickinson , D. Le Borgne , D. T. Frayer , C. N. A. Willmer