Results 61 to 70 of about 638,908 (320)
The Astrophysical Journal Supplement Series, 2023 Using data from Gaia Data Release 3 and Kepler/K2, we present a catalog of 16 open clusters with ages ranging from 4–4000 Myr that provides detailed information on membership, binary systems, and rotation. We assess the memberships in 5D phase space, and
Liu Long +11 more
doaj +1 more source
Constraining Mass-transfer Histories of Blue Straggler Stars with COS Spectroscopy of White Dwarf Companions [PDF]
Astrophysical Journal, 2019 Recent studies show that the majority of blue straggler stars (BSSs) in old open clusters are formed through mass transfer from an evolved star onto a main-sequence companion, resulting in a BSS and white dwarf (WD) in a binary system.
N. Gosnell +6 more
semanticscholar +1 more source
Discovery of a Double Blue Straggler Sequence in M15: New Insight into the Core-collapse Process [PDF]
Astrophysical Journal, 2019 In this paper we report the discovery of a double blue straggler star (BSS) sequence in the core of the core-collapsed cluster M15 (NGC 7078). We performed a detailed photometric analysis of the extremely dense core of the cluster using a set of images ...
G. Beccari +10 more
semanticscholar +1 more source
The rich lack close neighbours: the dependence of blue-straggler fraction on metallicity [PDF]
, 2020 Blue straggler stars (BSS) have been identified in star clusters and in field populations in our own Milky Way galaxy and in its satellite galaxies.
R. Wyse, M. Moe, K. Kratter
semanticscholar +1 more source
Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires
Advanced Functional Materials, EarlyView.In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton +11 more
wiley +1 more source
Magnetic Field Amplification during Stellar Collisions between Low-mass Stars
The Astrophysical Journal LettersBlue straggler stars in stellar clusters appear younger and bluer than other cluster members, offering a unique opportunity to understand the stellar dynamics and populations within their hosts.
Taeho Ryu +4 more
doaj +1 more source
Peculiarities in the Horizontal Branch Stars of Globular Cluster NGC 1851: Discovery of a Blue Straggler Companion to an EHB Star [PDF]
Astrophysical Journal, 2020 We present a study of far-UV (FUV) bright horizontal branch (HB) stars to understand the peculiarities seen in the HB sequence of the globular cluster NGC 1851, using ground- and space-based multiwavelength data.
Gaurav Singh +3 more
semanticscholar +1 more source
Modeling blue stragglers in young clusters [PDF]
Research in Astronomy and Astrophysics, 2011 In this paper, a grid of the binary evolution models are calculated for the study of blue straggler (BS) population in intermediate age ($\log Age$=7.85-8.95) star clusters. The BS formation via mass transfer and merging is studied systematically using our models.
Lu, Pin, Deng, Li-Cai, Zhang, Xiao-Bin
openaire +2 more sources
Two‐Dimensional Materials as a Multiproperty Sensing Platform
Advanced Functional Materials, EarlyView.Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana +11 more
wiley +1 more source
The Origin of Young Stellar Populations in NGC 1783: Accretion of External Stars
The Astrophysical JournalThe presence of young stellar populations in the Large Magellanic Cloud cluster NGC 1783 has caught significant attention, with suggestions ranging from it being a genuine secondary stellar generation to a population of blue straggler stars or simply ...
Li Wang +6 more
doaj +1 more source