Results 1 to 10 of about 288 (263)

Trends in the decapod crustacean community at the southernmost estuary of the Atlantic coast of Europe. [PDF]

Sci Rep, 2023
González-Ortegón E, de Carvalho-Souza GF, Vilas C, Baldó F, Cuesta JA.   +4 more
europepmc   +1 more source

New parameters for star-cluster dynamics: Observational results

Astronomy & Astrophysics
We recently used a large set of Monte Carlo simulations of globular clusters (GCs) to define new, fully empirical parameters (named A51, P51, and S2.5) able to trace the internal dynamical evolution of dense stellar systems.
Lanzoni B., Ferraro F. R., Vesperini E.
doaj   +1 more source

A Thorough Exploration of the Metal-rich Massive Open Cluster NGC 6253: Focusing on Membership, Binaries, Stragglers, and Mass Function

The Astrophysical Journal
This study provides an in-depth analysis of the ancient open galactic cluster NGC 6253, characterized by the presence of both blue and yellow straggler stars.
Huanbin Chi, Feng Wang
doaj   +1 more source

Sexual dimorphic regulation of recombination by the synaptonemal complex in C. elegans. [PDF]

Elife, 2023
Cahoon CK, Richter CM, Dayton AE, Libuda DE.   +3 more
europepmc   +1 more source

The Power of High-precision Broadband Photometry: Tracing the Milky Way Density Profile with Blue Horizontal Branch Stars in the Dark Energy Survey

The Astrophysical Journal
Blue horizontal branch stars (BHBs), excellent distant tracers for probing the Milky Way’s halo density profile, are distinguished in the ${\left(g-r\right)}_{0}$ versus ( i − z ) _0 color space from another class of stars, blue straggler stars.
Fengqing Yu, Ting S. Li, Joshua S. Speagle, Gustavo E. Medina, Sergey E. Koposov, Joss Bland-Hawthorn, Lara R. Cullinane, Gwendolyn M. Eadie, Denis Erkal, Geraint F. Lewis, Guilherme Limberg, Daniel B. Zucker   +11 more
doaj   +1 more source

Mergers via failed common envelope as a route toward intermediate-mass stripped stars

Astronomy & Astrophysics
Stripped stars are a common product of binary stellar systems, spanning a wide mass range from Wolf-Rayet stars to hot subdwarfs and helium white dwarfs.
Picco A., Marchant P., Pauli D., Sana H.
doaj   +1 more source

Once a Triple, Not Always a Triple: The Evolution of Hierarchical Triples That Yield Merged Inner Binaries

The Astrophysical Journal
More than half of all main-sequence (MS) stars have one or more companions, and many of those with initial masses 10 yr) companions. Furthermore, both BSS binaries and DWDs exhibit signatures of WD birth kicks.
Cheyanne Shariat, Smadar Naoz, Kareem El-Badry, Antonio C. Rodriguez, Bradley M. S. Hansen, Isabel Angelo, Alexander P. Stephan   +6 more
doaj   +1 more source

Mitogen-induced defective mitosis transforms neural progenitor cells. [PDF]

Neuro Oncol, 2023
Omairi HK, Grisdale CJ, Meode M, Bohm AK, Black S, Adam NJ, Chapman CP, Maroilley T, Kelly JJ, Tarailo-Graovac M, Jones SJM, Blough MD, Cairncross JG.   +12 more
europepmc   +1 more source

Formation Channels for Blue Straggler Stars [PDF]

, 2014
In this chapter we consider two formation channels for blue straggler stars: 1) the merger of two single stars via a collision, and 2) those produced via mass transfer within a binary. We review how computer simulations show that stellar collisions are likely to lead to relatively little mass loss and are thus effective in producing a young population ...
openaire   +2 more sources

Stellar Collisions and Blue Straggler Formation

, 2001
We review recent 3D hydrodynamic calculations of stellar collisions using the Smoothed Particle Hydrodynamics (SPH) method, and we discuss the implications of the results for the formation and evolution of blue stragglers in globular clusters. We also discuss the construction of simple analytic models for merger remnants, approximating the mass loss ...
Lombardi, James C., Rasio, Frederic A.
openaire   +2 more sources