Wind Energy

Wind Energy
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link: http://pxhere.com/en/photo/798884
author: PxHere

C O N T E N T S:

KEY TOPICS

  • The resolved LyC distributions provide tests of different mechanisms for high f esc including supernova winds (Clarke & Oey 2002 ; Fujita et al. 2002 ), minor galaxy interactions (Gnedin et al. 2008 ), and emission from globular cluster formation (Ricotti 2002 ).(More...)

POSSIBLY USEFUL

  • We have described the HST observational imaging data products and processing pipelines for the CANDELS, a 902-orbit HST MCT program aimed at documenting the first third of galactic evolution from redshift z ? 8 to 1.5 via deep imaging of more than 250,000 galaxies with the HST, together with new constraints on the use of SNe Ia as tracers of dark energy to higher redshifts than previously studied.(More...)

RANKED SELECTED SOURCES

KEY TOPICS

The resolved LyC distributions provide tests of different mechanisms for high f esc including supernova winds (Clarke & Oey 2002 ; Fujita et al. 2002 ), minor galaxy interactions (Gnedin et al. 2008 ), and emission from globular cluster formation (Ricotti 2002 ). [1]

POSSIBLY USEFUL

We have described the HST observational imaging data products and processing pipelines for the CANDELS, a 902-orbit HST MCT program aimed at documenting the first third of galactic evolution from redshift z ? 8 to 1.5 via deep imaging of more than 250,000 galaxies with the HST, together with new constraints on the use of SNe Ia as tracers of dark energy to higher redshifts than previously studied. [1] CANDELS yields SNe Ia at z 1.5 which remain crucial tracers of the evolution in the dark energy equation-of-state parameter w. [1] Section 3.4 describes science goals enabled by UV observations that exploit the GOODS-N CVZ. Section 3.5 describes the use of high- z SNe to constrain the dynamics of dark energy, measure the evolution of SN rates, and test whether SNe Ia remain viable as standardizable candles at early epochs. [2] By extending the Hubble diagram of SNe Ia to the fully dark-matter-dominated epoch, 1.5 < z < 2.5, we can begin to distinguish the effects of dark energy (which decays relative to dark matter as (1 + z ) 3 w ) from the evolution of SNe Ia. [2] Such SNe Ia at 1 < z < 1.5, the epoch when dark matter and dark energy were vying for dominance over expansion (i.e., ? M ? ? DE ), can be discovered in the CANDELS ACS parallel images. [2]

We refer to Grogin et al. ( 2011 ) for a more detailed description of the science goals, which include studies of galaxies in the reionization era ("cosmic dawn"), the growth and morphological transformation of galaxies during the era of peak star formation and active galactic nucleus (AGN) activity ("cosmic high noon"), and measurements of high-redshift SNe Ia to constrain dark energy and measure supernova rate evolution. [1] High-redshift SNe Ia continue to be a leading indicator on the nature of dark energy. [2]

Elucidating the nature of dark energy remains one of the most pressing priorities of observational cosmology. [2]

Sample spectral energy distributions (SEDs) of distant galaxies are superposed to illustrate how the combination of deep HST and Spitzer /SEDS data can be used to distinguish old red foreground interloper galaxies from true distant blue galaxies with similar brightness at ~1.3 ?m. [2] The consensus goal is to look for w 0 ? ?1 or dw / dz ? 0, either of which would invalidate an innate vacuum energy (i.e., cosmological constant) and would point toward a present epoch of "weak inflation." [2] Shorter-lived, more massive stars produce white dwarfs with a higher initial mass and a smaller ratio of carbon to oxygen. Such white dwarfs, in a Type Ia explosion, yield less energy per gram and a decrease in the 56 Ni mass synthesized (e.g., Becker & Iben 1980 ). [2]

RANKED SELECTED SOURCES(2 source documents arranged by frequency of occurrence in the above report)

1. (8) CANDELS: THE COSMIC ASSEMBLY NEAR-INFRARED DEEP EXTRAGALACTIC LEGACY SURVEY - IOPscience

2. (4) CANDELS: THE COSMIC ASSEMBLY NEAR-INFRARED DEEP EXTRAGALACTIC LEGACY SURVEY--THE HUBBLE SPACE TELESCOPE OBSERVATIONS, IMAGING DATA PRODUCTS, AND MOSAICS - IOPscience

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