Results 41 to 50 of about 1,421,542 (340)

The critical binary star separation for a planetary system origin of white dwarf pollution [PDF]

, 2017
The atmospheres of between one quarter and one half of observed single white dwarfs in the Milky Way contain heavy element pollution from planetary debris.
D. Veras, Siyi Xu, A. Rebassa-Mansergas
semanticscholar   +1 more source

PRELIMINARY RESULTS OF MODELING OF LIGHT CURVES OF WW AND

Odessa Astronomical Publications, 2017
In this work we present the preliminary results of modeling of Olson’s lybv light curves of an Algol-type binary WW And. A model of a binary star containing an accretion disk around the primary star is deployed.
S. Zola
doaj   +1 more source

Binary Neutron Star Mergers After GW170817

Frontiers in Astronomy and Space Sciences, 2020
The first combined detection of gravitational waves and electromagnetic signals from a binary neutron star (BNS) merger in August 2017 (an event named GW170817) represents a major landmark in the ongoing investigation of these extraordinary systems.
Riccardo Ciolfi, Riccardo Ciolfi
doaj   +1 more source

Period Change of the Contact Binary AH Tauri [PDF]

Journal of Astronomy and Space Sciences, 2004
New BVRI photometric observations of the contact binary AH Tau were performed with the 61 cm reflector and a 2K CCD camera at the Sobaeksan Optical Astronomy Observatory during seven nights from September to December, 2001. A total of 144 times of minima
Dongjoo Lee, Chung-Uk Lee, Jae Woo Lee, Seung-Lee Kim, Kyu-Dong Oh, Chun-Hwey Kim   +5 more
doaj   +1 more source

Potential Importance of Binary Evolution in UV-Optical Spectral Fitting of Early-Type Galaxies

, 2013
Binaries are very common in galaxies, and more than half of Galactic hot subdwarf stars, which are thought as a possible origin of UV-upturn of old stellar populations, are found in binaries.
Chen, Li, Li, Maocai, Li, Zhongmu, Mao, Caiyan, Zhang, Qian   +4 more
core   +1 more source

How THC works: Explaining ligand affinity for, and partial agonism of, cannabinoid receptor 1

iScience
Summary: Interaction with cannabinoid receptor 1 (CB1) partially determines the bioactivity of the phytocannabinoids. Consequently, there has also been significant effort directed toward preparing synthetic cannabinoids with either enhanced agonistic or ...
Farsheed Shahbazi-Raz, Daniel Meister, Azam Mohammadzadeh, John Frederick Trant   +3 more
doaj   +1 more source

Real-time detection of gravitational waves from binary neutron stars using artificial neural networks

Physics Letters B, 2020
The groundbreaking discoveries of gravitational waves from binary black-hole mergers [1–3] and, most recently, coalescing neutron stars [4] started a new era of Multi-Messenger Astrophysics and revolutionized our understanding of the Cosmos.
Plamen G. Krastev
doaj   +1 more source

Dynamical population synthesis: Constructing the stellar single and binary contents of galactic field populations

, 2011
[abridged] The galactic field's late-type stellar single and binary population is calculated on the supposition that all stars form as binaries in embedded star clusters.
Bate, Bergfors, Binney, Boissier, Bressert, Calura, Calzetti, Carney, Connelley, de la Fuente Marcos, Delfosse, Diehl, Duchêne, Duchêne, Duquennoy, Fan, Fan, Fischer, Fisher, Fregeau, Ghez, Gieles, Goodwin, Goodwin, Grebel, Harris, Kohler, Kouwenhoven, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Kroupa, Köppen, Lada, Lada, Lada, Lada, Larsen, Larsen, Lee, Lee, Marks, Mayor, Michael Marks, Misiriotis, Moeckel, Muench, Murray, Naab, Oh, Parker, Pavel Kroupa, Peretto, Pflamm-Altenburg, Pflamm-Altenburg, Pflamm-Altenburg, Piskunov, Raghavan, Recchi, Reid, Robitaille, Scheepmaker, Schönrich, Simon, Smith, Teixeira, Walsh, Weidner, Weidner, Zepf   +74 more
core   +1 more source

The dynamical fate of binary star clusters in the Galactic tidal field [PDF]

, 2016
Fragmentation and fission of giant molecular clouds occasionally results in a pair of gravitationally bound star clusters that orbit their mutual centre of mass for some time, under the influence of internal and external perturbations. We investigate the
R. Priyatikanto, R. Priyatikanto, M. Kouwenhoven, M. I. Arifyanto, H. Wulandari, S. Siregar   +5 more
semanticscholar   +1 more source

Unresolved Binaries and Multiples in the Intermediate Mass Range in Open Clusters: Pleiades, Alpha Per, Praesepe, and NGC 1039

The Astronomical Journal, 2023
In this study, we continue our project to search for unresolved binary and multiple systems in open clusters exploiting the photometric diagram (H–W2)–W1 versus W2–(BP–K) first introduced in Malofeeva et al. In particular, here we estimate the binary and
Alina A. Malofeeva, Varvara O. Mikhnevich, Giovanni Carraro, Anton F. Seleznev   +3 more
doaj   +1 more source