Results 31 to 40 of about 330,941 (300)

Mean densities of visual binary stars.

The Astronomical Journal, 1961
M. A. Giannuzzi, L. Bianco
openalex   +3 more sources

Note on the Comparative Eccentricities of Visual and Spectroscopic Binary Stars [PDF]

Monthly Notices of the Royal Astronomical Society, 1908
T. J. J. See
openalex   +3 more sources

Spectroscopic Orbits of Subsystems in Multiple Stars. IX

The Astronomical Journal, 2023
New spectroscopic orbits of inner subsystems in 14 hierarchies are determined from long-term monitoring with the optical echelle spectrometer, CHIRON.
Andrei Tokovinin
doaj   +1 more source

Detecting New Visual Binaries in Gaia DR3 with Gaia and Two Micron All Sky Survey (2MASS) Photometry. I. New Candidate Binaries within 200 pc of the Sun

The Astronomical Journal, 2023
We present a method to identify likely visual binaries in Gaia eDR3 that does not rely on parallax or proper motion. This method utilizes the various point-spread function sizes of Two Micron All Sky Survey (2MASS)/Gaia, where at
Ilija Medan, Sébastien Lépine
doaj   +1 more source

The application of multiple metrics in deformable image registration for target volume delineation of breast tumor bed

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Background and purpose For postoperative breast cancer patients, deformable image registration (DIR) is challenged due to the large deformations and non‐correspondence caused by tumor resection and clip insertion. To deal with it, three metrics (fiducial‐, region‐, and intensity‐based) were jointly used in DIR algorithm for improved accuracy ...
Xin Xie, Yuchun Song, Feng Ye, Hui Yan, Shulian Wang, Xinming Zhao, Jianrong Dai   +6 more
wiley   +1 more source

The clinical spectrum of SMA‐PME and in vitro normalization of its cellular ceramide profile

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1941-1952, December 2022., 2022
Abstract Objective The objectives of this study were to define the clinical and biochemical spectrum of spinal muscular atrophy with progressive myoclonic epilepsy (SMA‐PME) and to determine if aberrant cellular ceramide accumulation could be normalized by enzyme replacement.
Michelle M. Lee, Graeme S. V. McDowell, Darryl C. De Vivo, Daniel Friedman, Samuel F. Berkovic, Maria Spanou, Argirios Dinopoulos, Katheryn Grand, Pedro A. Sanchez‐Lara, Michelle Allen‐Sharpley, Jodi Warman‐Chardon, Alexander Solyom, Thierry Levade, Edward H. Schuchman, Steffany A. L. Bennett, David A. Dyment, Toni S. Pearson   +16 more
wiley   +1 more source

Mass Ratio of Single-line Spectroscopic Binaries with Visual Orbits Using Bayesian Inference and Suitable Priors

The Astronomical Journal, 2023
We present orbital elements for 22 single-line binaries, nine of them studied for the first time, determined from a joint spectroscopic and astrometric solution.
Jennifer Anguita-Aguero, Rene A. Mendez, Miguel Videla, Edgardo Costa, Leonardo Vanzi, Nicolas Castro-Morales, Camila Caballero-Valdes   +6 more
doaj   +1 more source

Spectroscopic Orbits of Subsystems in Multiple Stars. X (Summary)

The Astronomical Journal, 2023
Results of a large program of spectroscopic monitoring of nearby solar-type stellar hierarchical systems using the CHIRON echelle spectrograph at the 1.5 m telescope are summarized.
Andrei Tokovinin
doaj   +1 more source

Atmospheric and Fundamental Parameters of the Individual Components of Multiple Stellar Systems

The Astronomical Journal, 2023
We present detailed analyses of eight triple stellar systems (lying between 20 and 155 pc) and nine quadruple stellar systems (lying between 20 and 250 pc) with different configurations. Most of these systems are hierarchical.
Enas M. Abu-Alrob, Abdallah M. Hussein, Mashhoor A. Al-Wardat   +2 more
doaj   +1 more source

Investigation Limb darkening for short period AB Andromeda eclipsing binary star

Polytechnic, 2023
This work deal with characterizing the limb darkening coefficients for the short period binary stars AD Andromeda to determine the size, luminosities and masses of the Individual stars as well as orbital size and orientation of the binary system ...
Chiman Ibrahim Hussein Mrs
doaj   +1 more source