Results 51 to 60 of about 5,356 (321)

Magnetic Field Amplification during Stellar Collisions between Low-mass Stars

The Astrophysical Journal Letters
Blue 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, Alison Sills, Ruediger Pakmor, Selma de Mink, Robert Mathieu   +4 more
doaj   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

On the Variability of Blue Straggler Stars in the Globular Cluster M53 [PDF]

Journal of Astronomy and Space Sciences, 1998
We present the results of a search for photometric variable blue straggler stars (BSSs) in the globular cluster M53. Six of the 151 probable BSSs are identified as variable candidates based on the robust variable star detection technique of Welch ...
Soo-Chang Rey, Young-Wook Lee, Yong-Ik Byun   +2 more
doaj  

Blue Stragglers in Globular Clusters: Observations, Statistics and Physics

, 2014
This chapter explores how we might use the observed {\em statistics} of blue stragglers in globular clusters to shed light on their formation.
Knigge, Christian
core   +1 more source

Hubble Space Telescope Observations of the Oldest Star Clusters in the LMC [PDF]

, 1999
We present V, V-I color-magnitude diagrams (CMDs) for three old star clusters in the Large Magellanic Cloud (LMC): NGC 1466, NGC 2257 and Hodge 11. Our data extend about 3 magnitudes below the main-sequence turnoff, allowing us to determine accurate ...
Andersen J., Bower R., Brocato E., Buonanno R., Chaboyer B., Feast M. W., Fernley J., Frenk C. S., Goodwin S. P., James E. Hesser, Jennifer A. Johnson, Michael Bolte, Mighell K. J., Peter B. Stetson, Pont F., Rachel S. Somerville, Stetson P. B., Testa V.   +17 more
core   +2 more sources

The Blue Straggler F190: A Case for Mass Transfer [PDF]

Symposium - International Astronomical Union, 1992
The blue straggler F190 is a member of the old open cluster M67. We argue that F190 may still be in the final stages of the mass transfer that has made it into a blue straggler. We use the turnoff mass of the cluster and the mass function derived from the spectroscopic orbit for F190 to constrain the masses of each member of the binary, both before ...
Alejandra A. E. Milone, David W. Latham
openaire   +1 more source

The Origin of Young Stellar Populations in NGC 1783: Accretion of External Stars

The Astrophysical Journal
The 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, Licai Deng, Xiaoying Pang, Long Wang, Richard de Grijs, Antonino P. Milone, Chengyuan Li   +6 more
doaj   +1 more source

The Blue Stragglers of the Old Open Cluster NGC 188

, 2014
The old (7 Gyr) open cluster NGC 188 has yielded a wealth of astrophysical insight into its rich blue straggler population. Specifically, the NGC 188 blue stragglers are characterized by: A binary frequency of 80% for orbital periods less than $10^4 ...
A. A. Bonačić Marinović, A. A. Tokovinin, A. M. Geller, A. M. Geller, A. M. Geller, A. M. Geller, A. M. Geller, A. R. Sandage, A. Sarajedini, A. Sills, A. Sills, B. Paczyński, B. Paxton, B. W. Carney, B. W. Carney, C. A. Nelson, C.-P. Lajoie, D. Raghavan, D. W. Latham, E. Glebbeek, E. L. Sandquist, G. Mathys, H. B. Perets, H. B. Perets, H. L. Johnson, I. Platais, J. Ahumada, J. Ahumada, J. G. Hills, J. R. Hurley, J. R. Hurley, J. R. Hurley, J.-C. Passy, J.F. Sepinsky, K. Belczynski, M. Berg van den, M. S. Hjellming, M. W. McCrea, N. Leigh, N. M. Gosnell, N. Soker, P. Bergeron, P. Gondoin, P. J. T. Leonard, P. Kroupa, P. Marigo, P. P. Eggleton, R. A. Mardling, R. D. Mathieu, R. D. Mathieu, R. Kippenhahn, R.F. Webbink, S. J. Aarseth, S. Meibom, T. E. Woods, T. Mazeh, V. P. Goranskij, W. Landsman, X. Chen, X. Chen   +59 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Census of Blue Straggler Stars in Distant Open Clusters and Maximum Fractional Mass Excess of Open Cluster Blue Straggler Stars

The Astronomical Journal
We identified blue straggler stars (BSSs) in 53 open clusters utilizing data from Gaia DR3. Most of these clusters are situated in the outer regions of the Galactic disk, encompassing structures such as the warp and the Outer arm.
Qian Cui, Zhihong He, Shunhong Deng, Liming Peng, Chunyan Li, Yangping Luo, Kun Wang   +6 more
doaj   +1 more source