Results 101 to 110 of about 4,678,333 (310)

The Carnegie Supernova Project: The Low‐Redshift Survey [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2006
Supernovae are essential to understanding the chemical evolution of the Universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the Universe and the nature of dark energy.
Hamuy Wackenhut, Mario   +17 more
openaire   +4 more sources

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald   +7 more
wiley   +1 more source

Reidentification of Redshifts of SDSS Galaxies Overlapped with Galactic Objects

open access: yesThe Astronomical Journal
This work presents a catalog of reidentified redshifts of 853 galaxies for which the redshifts of overlapping foreground objects were registered in the Sloan Digital Sky Survey (SDSS) DR16 Database.
Masafumi Yagi   +2 more
doaj   +1 more source

Populating dark matter haloes with galaxies: comparing the 2dFGRS with mock galaxy redshift surveys [PDF]

open access: yes, 2003
In two recent papers, we developed a powerful technique to link the distribution of galaxies to that of dark matter haloes by considering halo occupation numbers as a function of galaxy luminosity and type.
Xiaohu Yang   +6 more
semanticscholar   +1 more source

Selective Growth of Bulk‐Like Perovskite in Plasmonic Nanoholes for Enhanced Two‐Photon‐Excited Emission

open access: yesAdvanced Materials, EarlyView.
Vacuum‐assisted capillary infiltration delivers perovskite precursors deep into gold nanohole plasmonic hotspots, enabling uniform in situ crystallization of bulk‐like CsPbBr3 within confined cavities. Verified by peel‐off and structural analyses, the hybrid platform shows simulated |E/E₀| ≈2.80 at 800 nm and ∼40‐fold two‐photon absorption‐enhanced ...
Jung‐Jae Do   +8 more
wiley   +1 more source

The FLAIR–DENIS Redshift Survey [PDF]

open access: yesPublications of the Astronomical Society of Australia, 1997
AbstractThe DEep Near-Infrared Survey of the southern sky (DENIS) will produce an important by-product: a clean, complete view of the local Universe to z ∼ 0·07 for 105 galaxies. We identify the FLAIR multi-fibre system on the UKST as an extremely competitive facility to undertake follow-up spectroscopy for this sample due to the need to cover wide ...
Q. A. Parker, M. Colless, G. Mamon
openaire   +1 more source

Probing neutrino masses with future galaxy redshift surveys [PDF]

open access: yes, 2004
We perform a new study of future sensitivities of galaxy redshift surveys to the free-streaming effect caused by neutrino masses, adding the information on cosmological parameters from measurements of primary anisotropies of the cosmic microwave ...
J. Lesgourgues, S. Pastor, L. Perotto
semanticscholar   +1 more source

Evolution‐Driven Bio‐Composite Aerogels for Self‐Adaptive Thermal Regulation and Energy Storage

open access: yesAdvanced Materials, EarlyView.
Inspired by nature's multiphase integration, a single chitosan (CTS)–metal chloride (MCl3) coordination precursor is engineered to enable sequential material and functional evolution. The resulting metal ion‐coordinated chitosan (CTS–M) aerogels exhibit humidity‐adaptive thermal insulation for battery safety, while carbonization yields conductive ...
Xiaoxue Zhang   +5 more
wiley   +1 more source

DESI Spectroscopy of HETDEX Emission-line Candidates. I. Line Discrimination Validation

open access: yesThe Astrophysical Journal
The Hobby–Eberly Dark Energy Experiment (HETDEX) is an untargeted spectroscopic galaxy survey that uses Ly α- emitting galaxies (LAEs) as tracers of 1.9 < z < 3.5 large-scale structure. Most detections consist of a single emission line, whose identity is
Martin Landriau   +52 more
doaj   +1 more source

Constraints on perfect fluid and scalar field dark energy models from future redshift surveys [PDF]

open access: yes, 2004
We discuss the constraints that future photometric and spectroscopic redshift surveys can put on dark energy through the baryon oscillations of the power spectrum.
L. Amendola   +2 more
semanticscholar   +1 more source

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