Results 41 to 50 of about 3,667,853 (278)

Probing the Propeller Regime With Wide Neutron Star Binaries

Astronomische Nachrichten
ABSTRACTWe model the duration of the propeller stage in wide binary systems with neutron stars and calculate the time of accretion onset for various propeller models. We apply our modeling to the symbiotic X‐ray binary SWIFT J0850.8‐4219. Unless a propeller with a very slow spin‐down is operating, it is very improbable to find a system similar to SWIFT
M. D. Afonina, S. B. Popov
openaire   +2 more sources

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

Five New Sirius-like White Dwarf–Main-sequence Star Systems with MagAO-X

The Astronomical Journal
Most known white dwarfs in multiple systems with main-sequence stars have been discovered with M-type companions, because the white dwarf causes detectable UV excess and bluer colors than expected from a single M star.
Logan A. Pearce, Jared R. Males, Sebastiaan Y. Haffert, Laird M. Close, Joseph D. Long, Eden A. McEwen, Joshua Liberman, Maggie Y. Kautz, Jay K. Kueny, Alycia J. Weinberger, Jialin Li, Elena Tonucci, Katie Twitchell, Avalon L. McLeod, Warren B. Foster, Olivier Guyon, Alexander D. Hedglen, Kyle Van Gorkom, Jennifer Lumbres, Lauren Schatz, Victor Gasho, Katie M. Morzinski, Phil M. Hinz   +22 more
doaj   +1 more source

A wide star–black-hole binary system from radial-velocity measurements [PDF]

Nature, 2019
Published in Nature on Nov 28 ...
Liu, Jifeng, Zhang, Haotong, Howard, Andrew W., Bai, Zhongrui, Lu, Youjun, Soria, Roberto, Justham, Stephen, Li, Xiangdong, Zheng, Zheng, Wang, Tinggui, Belczynski, Krzysztof, Casares, Jorge, Zhang, Wei, Yuan, Hailong, Dong, Yiqiao, Lei, Yajuan, Isaacson, Howard, Wang, Song, Bai, Yu, Shao, Yong, Gao, Qing, Wang, Yilun, Niu, Zexi, Cui, Kaiming, Zheng, Chuanjie, Mu, Xiaoyong, Zhang, Lan, Wang, Wei, Heger, Alexander, Qi, Zhaoxiang, Liao, Shilong, Lattanzi, Mario, Gu, Wei-Min, Wang, Junfeng, Wu, Jianfeng, Shao, Lijing, Shen, Rongfeng, Wang, Xiaofeng, Bregman, Joel, Di Stefano, Rosanne, Liu, Qingzhong, Han, Zhanwen, Zhang, Tianmeng, Wang, Huijuan, Ren, Juanjuan, Zhang, Junbo, Zhang, Jujia, Wang, Xiaoli, Cabrera-Lavers, Antonio, Corradi, Romano, Rebolo, Rafael, Zhao, Yongheng, Zhao, Gang, Chu, Yaoquan, Cui, Xiangqun   +54 more
openaire   +5 more sources

Mass Transfer in Binary Stars using Smoothed Particle Hydrodynamics [PDF]

, 2010
Despite numerous efforts to better understand binary star evolution, some aspects of it remain poorly constrained. In particular, the evolution of eccentric binaries has remained elusive mainly because the Roche lobe formalism derived for circular ...
Lajoie, Charles-Philippe
core  

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Fundamental Tests of White Dwarf Cooling Physics with Wide Binaries

The Astrophysical Journal
We present follow-up spectroscopy and a detailed model atmosphere analysis of 29 wide double white dwarfs, including eight systems with a crystallized C/O core member.
Manuel Barrientos, Mukremin Kilic, Pierre Bergeron, Simon Blouin, Warren R. Brown, Jeff J. Andrews   +5 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

The Pleiades Binary Fraction Revisited

The Astronomical Journal
One of the nearest and best-studied open clusters, the Pleiades is an important cornerstone of stellar astrophysics. Despite its role as a reference coeval stellar population, its multiplicity properties are still not well characterized. The combined use
Dmitry Chulkov
doaj   +1 more source

Four new wide binaries among exoplanet host stars [PDF]

Astronomy & Astrophysics, 2005
10 pages, 16 figures, A&A ...
Mugrauer, M., Neuhaeuser, R., Seifahrt, A., Mazeh, T., Guenther, E.   +4 more
openaire   +2 more sources