搜索结果: 46-60 共查到“理学 universe”相关记录197条 . 查询时间(0.093 秒)
Galaxies in a simulated Lambda CDM universe - II. Observable properties and constraints on feedback
feedback cluster
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2014/12/23
We compare the properties of galaxies that form in a cosmological simulation without strong feedback to observations of the z= 0 galaxy population. We confirm previous findings that models without str...
A Systematic Study of the Stellar Populations and ISM in Galaxies out to the Virgo Cluster: near field cosmology within a representative slice of the local universe
feedback near-fi eld cosmology
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2014/12/22
We present a compelling case for a systematic and comprehensive study of the resolved and unresolved stellar populations, ISM, and immediate environments of galaxies throughout the local volume, defin...
OBSERVATIONS OF STARBURST GALAXIES WITH FAR-ULTRAVIOLET SPECTROGRAPHIC EXPLORER: GALACTIC FEEDBACK IN THE LOCAL UNIVERSE
starburst halos
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2014/12/22
We have analyzed FUSE (905-1187 ? spectra of a sample of 16 local starburst galaxies. These galaxies cover almost three orders of magnitude in star-formation rates and over two orders of magnitude in ...
Isotropy of the early universe from CMB anisotropies
The cosmic microwave radiation cosmological parameters scattering baryon density
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2014/12/20
The acoustic peak in the cosmic microwave background power spectrum is sensitive to causal processes and cosmological parameters in the early universe up to the time of last scattering. We provide lim...
Dusty Star Formation in Extreme Environments: Galaxies and Galaxy Clusters in the Distant Universe
high-redshift galaxy clusters infrared environment Herschel
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2014/12/9
In this thesis, we present a comprehensive study of the dust-obscured star formation (SF) activity in galaxy clusters out to high redshift using infrared (IR) imaging. Using hundreds of galaxy cluster...
Physicists closer to understanding balance of matter, antimatter in Universe（图）
Universe Physicists
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2014/12/1
Physicists in Syracuse University’s College of Arts and Sciences have made important discoveries regarding Bs meson particles—something that may explain why the Universe contains more matter than anti...
POLARBEAR detects curls in the Universe's oldest light
Universe's oldest light POLARBEAR
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2014/10/30
Cosmologists have made the most sensitive and precise measurements yet of the polarization of the cosmic microwave background.
The report, published October 20 in the Astrophysical Journal, marks an ...
POLARBEAR detects curls in the Universe's oldest light（图）
universe light
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2014/12/1
Cosmologists have made the most sensitive and precise measurements yet of the polarization of the cosmic microwave background.
The report, published October 20 in the Astrophysical Journal, marks an ...
Best view yet of merging galaxies in distant universe（图）
distant universe merging galaxies
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2014/9/1
An international team of astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) -- among other telescopes -- has obtained the best view...
Do we live in a 2-D hologram? New Fermilab experiment will test the nature of the universe（图）
nature of the universe 2-D hologram
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2014/9/1
A unique experiment at the U.S. Department of Energy’s Fermi National Accelerator Laboratory called the Holometer has started collecting data that will answer some mind-bending questions about our uni...
Small but Plentiful: How the Faintest Galaxies Illuminated the Early Universe（图）
The universe Galaxy Astrophysics. The Milky Way. The big bang Ultraviolet The mass of the sun
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2014/7/18
Light from tiny galaxies more than 13 billion years ago played a larger role than previously thought in creating the conditions in the universe as we know it today, according to a new study by researc...
Small, but plentiful: how the faintest galaxies illuminated the early universe（图）
Ultraviolet Stars Dwarf galaxies. The universe Astrophysics. Galaxy ionization
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2014/7/18
Light from tiny galaxies over 13 billion years ago played a larger role than previously thought in creating the conditions in the universe as we know it today, a new study has found. Ultraviolet (UV) ...
Nearby galaxy is a “fossil” from the early universe
Nearby galaxy fossil early universe
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2014/5/13
Pasadena, CA— New work from a team of scientists including Carnegie’s Josh Simon analyzed the chemical elements in the faintest known galaxy, called Segue 1, and determined that it is effectively a fo...
Boss quasars track the expanding universe: The most precise measurement yet
Boss quasars track expanding universe The most precise measurement yet
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2014/4/16
The Baryon Oscillation Spectroscopic Survey (BOSS), the largest component of the third Sloan Digital Sky Survey (SDSS-III), pioneered the use of quasars to map density variations in intergalactic gas ...
First detailed look at a normal galaxy in the very early universe（图）
a normal galaxy early universe
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2014/3/17
University of Hawaii at Manoa astronomer Regina Jorgenson has obtained the first image that shows the structure of a normal galaxy in the early universe. The results were presented at the winter Ameri...