Results 91 to 100 of about 9,374 (262)

Spectroscopic and asteroseismic analysis of the remarkable main-sequence A star KIC 11145123 [PDF]

, 2017
A spectroscopic analysis was carried out to clarify the properties of KIC 11145123 -- the first main-sequence star with a determination of core-to-surface rotation -- based on spectra observed with the High Dispersion Spectrograph (HDS) of the Subaru ...
Kurtz, Donald W., Murphy, Simon J., Saio, Hideyuki, Sekii, Takashi, Shibahashi, Hiromoto, Takada-Hidai, Masahide, Takata, Masao   +6 more
core   +2 more sources

Field Blue Stragglers and Related Mass Transfer Issues

, 2014
This chapter contains my impressions and perspectives about the current state of knowledge about field blue stragglers (FBS) stars, drawn from an extensive literature that I searched. I conclude my review of issues that attend FBS and mass transfer, by a
A. Buzzoni, A. D. Vanture, A. Duquennoy, A. F. Marino, A. F. Marino, A. G. D. Philip, A. J. Horton, A. Jorissen, A. M. Boesgaard, A. M. Boesgaard, A. Manduca, A. R. Sandage, A. R. Sandage, A. Tokovinin, A. W. Rodgers, A. W. Rodgers, B. Paczynski, B. Tian, B. W. Bopp, B. W. Carney, B. W. Carney, B. Yanny, C. Flynn, C. J. Pritchet, C. L. Perry, C. M. Lance, C. M. Lance, D. A. VandenBergh, D. A. VandenBergh, D. Geisler, D. H. McNamara, D. W. Latham, E. Böhm-Vitense, E. Carretta, E. H. Olsen, E. H. Olsen, E. M. Green, E. Poretti, E. Sirko, F. Marchi De, F. Spite, G Michaud, G. Beccari, G. I. Mandushev, G. P. Kuiper, G. Pietrzyński, G. Piotto, G. W. Preston, G. W. Preston, G. W. Preston, G. W. Preston, G. W. Preston, G. W. Preston, G. W. Preston, G. Wallerstein, H Bondi, H. J. Newberg, H. M. J. Boffin, H. M. J. Boffin, H. Morrison, I Soszyński, I. B. Thompson, I. I. Ivans, I. King, J. A. Thorburn, J. A. Thorburn, J. E. Hesser, J. E. Norris, J. F. Sepinsky, J. F. Sepinsky, J. F. Sepinsky, J. L. Sérsic, J. Norris, J. O. Petersen, J. R. Pier, J. W. Glaspey, K. A. Venn, K. Fuhrmann, K. Fuhrmann, K. Innanen, L. A. Balona, L. Clewley, L. M. Hobbs, L. Searle, M Shetrone, M. Bolte, M. D. Shetrone, M. H. Pinsonneault, M. H. Pinsonneault, M. H. Pinsonneault, M. Livio, M. Livio, M. Mateo, M. Monelli, M. Spite, M. Zoccali, N. Sanduleak, N. Soker, O. J. Eggen, O. Struve, O. Y. Gnedin, P. B. Stetson, P. Côté, P. J. T. Leonard, P. P. Eggleton, R Kippenhahn, R. Buser, R. D. McClure, R. D. McClure, R. E. Cohen, R. E. Davies, R. J. Stancliffe, R. J. Stancliffe, R. W. Hilditch, R. Wilhelm, R. Wilhelm, S. Bisterzo, S. E. Koposov, S. G. Ryan, S. G. Ryan, S. Vauclair, S. Yi, T. A. Smecker-Hane, T. C. Beers, T. C. Beers, T. D. Kinman, T. Masseron, T. Theuns, W. H. McCrea, W. I. Clarkson, W. L. Melbourne, W. R. Brown, X.-X. Xue, Y.-W. Lee, Z. Han   +134 more
core   +1 more source

Star Cluster Ecology: VII The evolution of young dense star clusters containing primordial binaries [PDF]

, 2006
We study the first 100Myr of the evolution of isolated star clusters initially containing 144179 stars, including 13107 (10%) primordial hard binaries. Our calculations include the effects of both stellar and binary evolution.
Makino, Jun, McMillan, Steve, Zwart, Simon Portegies   +2 more
core   +2 more sources

Engineering Neuronal Network Connectivity Through Precise and Scalable Electrical Modulation

Advanced Science, EarlyView.
This study presents a scalable all‐electrical method for precise neuronal‐circuit reconfiguration based on high‐density microelectrode arrays. By employing biologically inspired plasticity rules, targeted connectivity changes were successfully induced and quantified across diverse neuronal preparations.
Sreedhar S. Kumar, Yannaël Bossard, Rachel Sava, Tobias Gänswein, Lorenca Sadiraj, Jean‐Samuel Dupré, Manuel Schröter, J. Gray Camp, Fernando Cardes, Julian Bartram, Andreas Hierlemann   +10 more
wiley   +1 more source

New Insight of Time-transformed Symplectic Integrator. I. Hybrid Methods for Hierarchical Triples

The Astrophysical Journal
Accurate N -body simulations of multiple systems such as binaries and triples are essential for understanding the formation and evolution of interacting binaries and binary mergers, including gravitational wave sources, blue stragglers, and X-ray ...
Long Wang
doaj   +1 more source

A Flexible Metamaterial Absorber via Loss Engineering for Large‐Area Ultra‐Broadband Infrared Extinction

Advanced Science, EarlyView.
Designed and demonstrated a flexible metamaterial absorber via loss engineering for large‐area ultra‐broadband infrared extinction, providing a new method for miniaturization of absorbers and flexible optical devices. ABSTRACT The advancement of compact and wearable optical systems is critically limited by the lack of high‐performance, integrable ...
Zhe Wu, Zhongzhu Liang, Xiaoyan Shi, Fuming Yang, Enzhu Hou, Jihui Jiang, Xintong Wei, Siyu Guo, Bing Sun, Qingxin Tang, David R. Smith, Haiyang Xu   +11 more
wiley   +1 more source

WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506

The Astronomical Journal
NGC 2506 is a rich, intermediate-age (2.0 Gyr), metal-poor ([Fe/H] ∼ −0.2) open cluster. This work presents the results of 12,157 spectroscopic radial-velocity measurements of 2442 stars in the NGC 2506 field obtained over 41 yr, made as part of the WIYN
Evan Linck, Robert D. Mathieu, David W. Latham   +2 more
doaj   +1 more source

TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens

Advanced Science, EarlyView.
ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan, Yuqing Zhang, Wangzhe Zhou, Zhaojian Zhang, Xiaoyun He, Xinpeng Jiang, Yiyi Li, Xin He, Jiagui Wu, Yuanmu Yang, Junbo Yang   +10 more
wiley   +1 more source

Identification of Blue Horizontal-branch Stars Using Synthetic SkyMapper Colors from Gaia XP Spectra

The Astrophysical Journal Supplement Series
Blue horizontal-branch (BHB) stars are ideal tracers for mapping the structure of the Galactic stellar halo. Traditionally, BHB sample stars are built from large-scale spectroscopic surveys utilizing their spectral features; however, the resulting sample
Guozhen Hu, Yang Huang, Wenyuan Cui, Tao Wang, Kai Xiao, Ruifeng Shi, Jie Ju, Bowen Huang, Chunyan Li, Zhicun Liu, Xiaolong Wang, Changqing Luo   +11 more
doaj   +1 more source

Accurate age determinations of several nearby open clusters containing magnetic Ap stars

, 2014
Aims: Our aim is to obtain ages that are as accurate as possible for the seven nearby open clusters alpha Per, Coma Ber, IC 2602, NGC 2232, NGC 2451A, NGC 2516, and NGC 6475, each of which contains at least one magnetic Ap or Bp star.
Landstreet, J. D., Silaj, J.
core   +1 more source