Results 41 to 50 of about 1,670,467 (306)

The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics from 10 to 100 au [PDF]

open access: yesAstronomical Journal, 2019
We present a statistical analysis of the first 300 stars observed by the Gemini Planet Imager Exoplanet Survey. This subsample includes six detected planets and three brown dwarfs; from these detections and our contrast curves we infer the underlying ...
E. Nielsen   +65 more
semanticscholar   +1 more source

Extrasolar planet population synthesis IV. Correlations with disk metallicity, mass and lifetime

open access: yes, 2012
Context. This is the fourth paper in a series showing the results of planet population synthesis calculations. Aims. Our goal in this paper is to systematically study the effects of important disk properties, namely disk metallicity, mass and lifetime ...
Alexander   +107 more
core   +3 more sources

Genetic alterations in gliosarcoma and giant cell glioblastoma [PDF]

open access: yes, 2015
The majority of glioblastomas develop rapidly with a short clinical history (primary glioblastoma IDH wild-type), whereas secondary glioblastomas progress from diffuse astrocytoma or anaplastic astrocytoma.
ANTONELLI, MANILA   +13 more
core   +1 more source

Asteroseismology of red giants & galactic archaeology

open access: yes, 2017
Red-giant stars are low- to intermediate-mass ($M \lesssim 10$~M$_{\odot}$) stars that have exhausted hydrogen in the core. These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies for several ...
A. Baglin   +72 more
core   +1 more source

Metallicity gradients in the Sagittarius dwarf spheroidal Galaxy [PDF]

open access: yes, 2001
Metallicity gradients in the Sagittarius dwarf Galaxy (Sgr) are investigated by using infrared photometric data from the 2MASS survey. To search for metallicity effects, the giant branch in a field situated near the Center of the Sgr is compared to the ...
Alard   +16 more
core   +3 more sources

A giant planet candidate transiting a white dwarf [PDF]

open access: yesNature, 2020
Astronomers have discovered thousands of planets outside the Solar System1, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs.
A. Vanderburg   +63 more
semanticscholar   +1 more source

Nutrient Utilization and Gut Microbiota Composition in Giant Pandas of Different Age Groups

open access: yesAnimals
Proper feeding and nutrition are vital for maintaining the health of giant pandas (GPs), yet the impact of dietary changes and gut microbiota on their nutrient utilization remains unclear.
Chengdong Wang   +11 more
doaj   +1 more source

Squashed Giants: Bound States of Giant Gravitons

open access: yes, 2004
We consider giant gravitons in the maximally supersymmetric type IIB plane-wave, in the presence of a constant NSNS B-field background. We show that in response to the background B-field the giant graviton would take the shape of a deformed three-sphere,
  +27 more
core   +4 more sources

The Force Between Giant Magnons [PDF]

open access: yes, 2010
We compute the force and torque between well-separated, slowly-moving Giant Magnons with arbitrary orientations on S^5.
Adkins   +24 more
core   +1 more source

Dynamic genome evolution and complex virocell metabolism of globally-distributed giant viruses

open access: yesNature Communications, 2020
The discovery of eukaryotic giant viruses has transformed our understanding of the limits of viral complexity, but the extent of their encoded metabolic diversity remains unclear.
M. Moniruzzaman   +3 more
semanticscholar   +1 more source

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