Results 71 to 80 of about 321,109 (289)

A Brief Overview of Black Hole-Neutron Star Mergers

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Of the three main types of binaries detectable through ground-based gravitational wave observations, black hole-neutron star (BHNS) mergers remain the most elusive.
Francois Foucart
doaj   +1 more source

A Terrestrial Planet in a ~1 AU Orbit Around One Member of a ~15 AU Binary

open access: yes, 2014
We detect a cold, terrestrial planet in a binary-star system using gravitational microlensing. The planet has low mass (2 Earth masses) and lies projected at $a_{\perp,ph}$ ~ 0.8 astronomical units (AU) from its host star, similar to the Earth-Sun ...
Abe, F.   +63 more
core   +1 more source

Thermal Timescale Mass Transfer Rates in Intermediate-Mass X-ray Binaries [PDF]

open access: yes, 2007
Thermal timescale mass transfer generally occurs in close binaries where the donor star is more massive than the accreting star. The mass transfer rates are usually estimated in terms of the Kelvin-Helmholtz timescale of the donor star.
Li, Xiang-Dong, Xu, Xiao-Jie
core   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

A Be Star + He Star Binary as an Indicator of a Binary Mass Transfer Phase

open access: yesThe Astrophysical Journal
The rapid rotation of Be stars is supposed to mainly originate from binary evolution. In recent years, more and more Be stars with helium (He) star companions have been discovered, which provides a significant opportunity to study binary interaction ...
Yuchen Bao   +4 more
doaj   +1 more source

Microlensing Detections of Planets in Binary Stellar Systems

open access: yes, 2007
We demonstrate that microlensing can be used for detecting planets in binary stellar systems. This is possible because in the geometry of planetary binary systems where the planet orbits one of the binary component and the other binary star is located at
Bozza V.   +14 more
core   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

open access: yesMolecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova   +14 more
wiley   +1 more source

Searching for White Dwarf Candidates Formed Through Binary Evolution in Star Clusters

open access: yesThe Astrophysical Journal
White dwarfs (WDs), the evolutionary endpoints of most stars, can form through both single-star and binary channels. While single-star evolutionary models enable reliable WD age estimates, binary evolution introduces interactions that can accelerate WD ...
Huahui Yan   +13 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Rapid Localization of Gravitational Wave Sources from Compact Binary Coalescences Using Deep Learning

open access: yesThe Astrophysical Journal, 2023
The mergers of neutron star–neutron star and neutron star–black hole binaries (NSBHs) are the most promising gravitational wave (GW) events with electromagnetic (EM) counterparts.
Chayan Chatterjee   +5 more
doaj   +1 more source

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