Results 121 to 130 of about 240,146 (346)
Instantaneous Normal Modes of Yukawa Liquids
Contributions to Plasma Physics, EarlyView.ABSTRACT The instantaneous normal mode (INM) approach, which extends the normal mode description of collective excitations in solids to liquids, is applied to strongly coupled, three‐dimensional Yukawa liquids. Based on data from Langevin dynamics simulations, we compute the instantaneous normal modes across a wide range of coupling and screening ...
Tillman Keller, Hanno Kählert
wiley +1 more source
Thirteenth Marcel Grossmann Meeting, Summary of the session, White Dwarf Pulsars and Rotating White Dwarf Theory [PDF]
arXiv, 2013 This is the summary of the parallel session entitled "White Dwarf Pulsars and Rotating White Dwarf Theory", chaired by Yukikatsu Terada in Thirteenth Marcel Grossmann Meeting. The origin of cosmic rays remains a mystery, even over 100 years since their discovery.
arxiv
Spitzer White Dwarf Planet Limits [PDF]
, 2006 We present preliminary limits on the presence of planets around white dwarf stars using the IRAC photometer on the Spitzer space telescope. Planets emit strongly in the mid-infrared which allows their presence to be detected as an excess at these ...
Mullally, F. +2 more
core +2 more sources
Ecography, EarlyView.Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri +6 more
wiley +1 more source
White Dwarfs and Planetary Central Stars [PDF]
Symposium - International Astronomical Union, 1989 Studies of hot white dwarf samples constrain the properties and evolution of planetary nuclei and the nebulae. In particular, the white dwarf and planetary nebulae formation rates are compared. I discuss the overlap of the sequences of white dwarfs having hydrogen (DA) and helium-rich (DO) atmospheres with known central stars of high surface gravity ...
openaire +2 more sources
How many trees are there in the North American boreal forest?
Ecography, EarlyView.Boreal forests, the largest terrestrial biome on Earth, are highly varied in local tree density. Despite previous attempts to estimate tree density in boreal forests, the accuracy of the estimation is unknown, leaving the question how many trees there are in boreal forests largely unanswered. Here, we compiled tree density data from 4367 plots in North
Kun Xu +4 more
wiley +1 more source
The Astrophysical JournalWhite dwarfs (WDs) polluted by exoplanetary material provide the unprecedented opportunity to directly observe the interiors of exoplanets. However, spectroscopic surveys are often limited by brightness constraints, and WDs tend to be very faint, making ...
Malia L. Kao +7 more
doaj +1 more source
Low Luminosity Stars and White Dwarfs [PDF]
Highlights of Astronomy, 1974 (1) When discussing properties of stars of low luminosity we should first define what we mean by that term. My own feeling is that a bolometric luminosity of 0.001 of that of the Sun appears to be a reasonable upper limit for ‘low luminosity’. Further, it is obvious that, in order to find any numbers of them, one must go down to the very faintest ...
openaire +2 more sources
Hydrovoltaic Energy Harvesting From Nut Shells
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Schematic diagram illustrating the process of an NS‐based WEG. The flow diagram illustrates the preparations, porous hierarchical structure, water‐surface interactions, water transportation through channels and generating streaming potential. The center left demonstrates voltage/current generation through evaporation in graphite‐NS‐graphite sandwich ...
Nazmul Hossain +5 more
wiley +1 more source
Measuring the Mass–Radius Relation of White Dwarfs Using Wide Binaries
The Astrophysical JournalMeasuring the mass–radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass–radius relation using the gravitational redshifts and radii of 135 white ...
Stefan Arseneau +12 more
doaj +1 more source