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Now showing items 17438-17457 of 24095
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Primeval very low-mass stars and brown dwarfs - III. The halo transitional brown dwarfs
(2018-09-01)We report the discovery of an esdL3 subdwarf, ULAS J020858.62+020657.0 and a usdL4.5 subdwarf, ULAS J230711.01+014447.1. They were identified as L subdwarfs by optical spectra obtained with the Gran Telescopio Canarias, ... -
Primeval very low-mass stars and brown dwarfs - IV. New L subdwarfs, Gaia astrometry, population properties, and a blue brown dwarf binary
(2018-11-11)We present 27 new L subdwarfs and classify five of them as esdL and 22 as sdL. Our L subdwarf candidates were selected with the UKIRT Infrared Deep Sky Survey and Sloan Digital Sky Survey. Spectroscopic follow-up was carried ... -
Primeval very low-mass stars and brown dwarfs - VI. Population properties of metal-poor degenerate brown dwarfs
(2019-06-01)We presented 15 new T dwarfs that were selected from UKIRT Infrared Deep Sky Survey, Visible and Infrared Survey Telescope for Astronomy, and Wide-field Infrared Survey Explorer surveys, and confirmed with optical to near ... -
Primeval very low-mass stars and brown dwarfs -- II. The most metal-poor substellar object
(2017-06-01)SDSS J010448.46+153501.8 has previously been classified as an sdM9.5 subdwarf. However, it's very blue J-K colour (-0.15+/-0.17) suggests a much lower metallicity compared to normal sdM9.5 subdwarfs. Here we re-classify ... -
Primeval very low-mass stars and brown dwarfs. I. Six new L subdwarfs, classification and atmospheric properties
(2017-01-01)We have conducted a search for L subdwarf candidates within the photometric catalogues of the UKIRT Infrared Deep Sky Survey and Sloan Digital Sky Survey. Six of our candidates are confirmed as L subdwarfs spectroscopically ... -
Priming Older Adults and People with Alzheimer’s Disease Analogical Problem-solving with True and False Memories
(2019-08-09)We investigated the extent to which activation of specific information in associative networks during a memory task could facilitate subsequent analogical problem solving in healthy older adults as well as those with early ... -
Priming Older Adults and People with Mild to Moderate Alzheimer’s Disease Problem-solving with False Memories
(2020)These data are from two Experiments investigating whether older adult controls (OACs) and people with mild and moderate Alzheimer’s disease (AD) benefit from false memory priming effects in subsequent problem-solving tasks. ... -
Priming Older Adults and People with Mild to Moderate Alzheimer’s Disease Problem-solving with False Memories
(2020-02-04)In two experiments we investigated whether older adult controls (OACs) and people with mild and moderate Alzheimer’s disease (AD) benefit from false memory priming effects in subsequent problem-solving tasks. In addition, ... -
Primitive Methodism in Hertfordshire from 1838 to 1918: a Socio-Economic and Demographic Study
(2021-03-01)This is a study of the history and development of Primitive Methodism in Hertfordshire from 1838 to 1918. It aims to discover and document, principally by means of socio-economic and demographic analysis, firstly, how ... -
Primordial heavy element production
(Springer Nature, 1995) -
Primordial Lithium and Big Bang Nucleosynthesis
(2000)Recent determinations of the abundance of the light-element Li in very metal-poor stars show that its intrinsic dispersion is essentially zero and that the random error in the estimated mean Li abundance is negligible. ... -
Primordial mass segregation in simulations of star formation?
(2015-02-01)We take the end result of smoothed particle hydrodynamics (SPH) simulations of star formation which include feedback from photoionization and stellar winds and evolve them for a further 10 Myr using N-body simulations. We ... -
The Prince of Denmark
(University of Hertfordshire Press, 2002)This fictional re-writing of the Hamlet story is set in a time somewhere between the Scandinavian Dark Ages (out of which the tale of Hamlet came), and the Renaissance society of Shakespeare's play. The novel searches past ... -
Prince Peter Kropotkin : Anarchism, Eugenics and the Utopian Ideal of Letchworth Garden City
(2015-11-12)Ebenezer Howard’s book Garden Cities of Tomorrow (1898), referred to the precedents for his ideas in the writings of Prince Peter Kropotkin and William Morris. Kropotkin was pre-Revolutionary socialist, who, prior to the ... -
Principal component analysis on chemical abundances spaces
(2012-04)In preparation for the High Efficiency and Resolution Multi-Element Spectrograph (HERMES) chemical tagging survey of about a million Galactic FGK stars, we estimate the number of independent dimensions of the space defined ... -
Principle 4 : Sustainable Development through Integration
(Oxford University Press (OUP), 2015-02) -
A principled approach to interactive hierarchical non-linear visualization of high-dimensional data
(2001)Hierarchical visualization systems are desirable because a single twodimensional visualization plot may not be sufficient to capture all of the interesting aspects of complex high-dimensional data sets. We extend an existing ... -
Principles and Applications of Radiological Physics, 6th Edition
(Churchill Livingstone, 2011)