Results 111 to 120 of about 4,407 (194)

Dynamical Evolution of Four Old Galactic Open Clusters Traced by Their Constituent Stars with Gaia DR3

open access: yesThe Astronomical Journal
We investigate the evolutionary stages of four open clusters—Berkeley 39, Collinder 261, NGC 6819, and NGC 7789—of ages ranging from 1.6 to 6 Gyr. These clusters have previously been classified into dynamically young and intermediate age groups based on ...
Shanmugha Balan   +4 more
doaj   +1 more source

Cell Division Control Protein 42 Interacts With Hepatitis E Virus Capsid Protein and Participates in Hepatitis E Virus Infection. [PDF]

open access: yesFront Microbiol, 2021
Fan M   +10 more
europepmc   +1 more source

Stellar Spin-down in Post-mass-transfer Binary Systems

open access: yesThe Astrophysical Journal
Motivated by measurements of the rotation speed of accretor stars in post-mass-transfer (post-MT) systems, we investigate how magnetic braking affects the spin-down of individual stars during binary evolution with the MESAbinary module.
Meng Sun   +3 more
doaj   +1 more source

The Blue Lurker WOCS 14020: A Long-period Post-common-envelope Binary in M67 Originating from a Merger in a Triple System

open access: yesThe Astrophysical Journal Letters
We present Hubble Space Telescope far-ultraviolet (FUV) spectra of a blue lurker–white dwarf (BL–WD) binary system in the 4 Gyr open cluster M67. We fit the FUV spectrum of the WD, determining it is a C/O WD with a mass of $0.7{2}_{-0.04}^{+0.05}$ M _ ...
Emily M. Leiner   +5 more
doaj   +1 more source

Constructing graphs from genetic encodings. [PDF]

open access: yesSci Rep, 2021
Barabási DL, Czégel D.
europepmc   +1 more source

Dynamical Signatures of Trumpler 19: A Statistical and Photometric Perspective

open access: yesThe Astrophysical Journal
We present a statistical approach to investigating the dynamical evolution of the old open cluster Trumpler 19. We identified 810 cluster members using an ensemble-based unsupervised machine learning method applied to Gaia Data Release 3 astrometric data.
A. H. Sheikh, Biman J. Medhi, Ram Sagar
doaj   +1 more source

Defining hippocampal area CA2 in the fox (Vulpes vulpes) brain. [PDF]

open access: yesHippocampus, 2023
Dudek SM   +7 more
europepmc   +1 more source

Wind Roche-lobe Overflow in Low-mass Binaries: Exploring the Origin of Rapidly Rotating Blue Lurkers

open access: yesThe Astrophysical Journal
Wind Roche-lobe overflow (WRLOF) is a mass-transfer mechanism proposed by Mohamed and Podsiadlowski for stellar binaries wherein the wind acceleration zone of the donor star exceeds its Roche-lobe radius, allowing stellar wind material to be transferred ...
Meng Sun   +6 more
doaj   +1 more source

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