Results 61 to 70 of about 31,802 (281)

On the properties of contact binary stars

, 2004
A catalogue of light curve solutions of contact binary stars has been compiled. It contains the results of 159 light curve solutions. Properties of contact binary stars were studied by using the catalogue data. As it is well known since Lucy's (1968a,b)
Binnendijk, Bradstreet, Flower, Kalimeris, Kuiper, Kähler, Kähler, Kähler, Kähler, Kähler, Liu, Lucy, Lucy, Lucy, Maceroni, Maceroni, Mochnacki, P. Klagyivik, Pribulla, Rucinski, Sz. Csizmadia, Vinkó, Webbink   +22 more
core   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

Advanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su, Ting‐Chun Chou, Maria Teresa López‐Cascales, Junfeng Huang, Tsai‐Ying Chen, Sjoukje van Wieren, Chan Li, Cecile Beerens, Li You, Jelle Storteboom, Miao‐Ping Chien   +10 more
wiley   +1 more source

Rethinking Thorne–Żytkow Object Formation: Assembly via Common Envelope in Field Binaries

The Astrophysical Journal
Thorne–Żytkow objects (TŻOs), hypothetical merger products in which a neutron star is embedded in a stellar core, are traditionally considered steady-state configurations. Their assembly, especially through dynamical channels, is not well understood. The
Rosa Wallace Everson, Tenley Hutchinson-Smith, Alejandro Vigna-Gómez, Enrico Ramirez-Ruiz   +3 more
doaj   +1 more source

Neutron-Capture Elements in the Double-Enhanced Star HE 1305-0007: a New s- and r-Process Paradigm

, 2007
The star HE 1305-0007 is a metal-poor double-enhanced star with metallicity [Fe/H] $=-2.0$, which is just at the upper limit of the metallicity for the observed double-enhanced stars. Using a parametric model, we find that almost all s-elements were made
Cui Dong-Nuan, Cui Wen-Yuan, Du Yun-Shuang, Groenewegen M A T, Herwig F, Hill V, Zhang Bo   +6 more
core   +1 more source

The Complete Evolution of a Neutron-star Binary through a Common Envelope Phase Using 1D Hydrodynamic Simulations [PDF]

The Astrophysical Journal Letters, 2019
Abstract Over 40 years of research suggests that the common envelope phase, in which an evolved star engulfs its companion upon expansion, is the critical evolutionary stage forming short-period, compact-object binary systems, such as coalescing double compact objects, X-ray binaries, and cataclysmic variables. In this work, we adapt the
Tassos Fragos, Jeff J. Andrews, Enrico Ramirez-Ruiz, Georges Meynet, Vicky Kalogera, Ronald E. Taam, Andreas Zezas   +6 more
openaire   +3 more sources

De Novo Multi‐Mechanism Antimicrobial Peptide Design via Multimodal Deep Learning

Advanced Science, EarlyView.
Current AI‐driven peptide discovery often overlooks complex structural data. This study presents M3‐CAD, a generative pipeline that leverages 3D voxel coloring and a massive database of over 12 000 peptides to capture nuanced physicochemical contexts.
Xiaojuan Li, Haifan Gong, Yue Wang, Yinuo Zhao, Lixiang Li, Peijing Bao, Qingzhou Kong, Jialu Fu, Boyao Wan, Yumeng Zhang, Jinghui Zhang, Jiekun Ni, Zhongxue Han, Xueping Nan, Kunping Ju, Longfei Sun, Yuerui Ma, Huijun Chang, Mengqi Zheng, Yanbo Yu, Xiaoyun Yang, Xiuli Zuo, Haina Wang, Yanqing Li   +23 more
wiley   +1 more source

Fits for the Convective Envelope Mass in Massive Stars

The Astrophysical Journal
We explore the evolution of massive stars (>8 M _⊙ ) with 1D models and present analytical fits to the masses and binding energies of the convective portions of their envelopes.
Lewis Picker, Ryosuke Hirai, Ilya Mandel
doaj   +1 more source

Analytical expressions for the envelope binding energy of giants as a function of basic stellar parameters [PDF]

, 2010
The common-envelope (CE) phase is an important stage in the evolution of binary stellar populations. The most common way to compute the change in orbital period during a CE is to relate the binding energy of the envelope of the Roche-lobe filling giant ...
Kalogera, Vassiliki, Loveridge, Andrew James, van der Sluys, Marc   +2 more
core   +3 more sources

The quest for companions to post-common envelope binaries [PDF]

Astronomy & Astrophysics, 2012
accepted by A& ...
Backhaus, Udo, Bauer, S., Beuermann, Klaus, Diese, J., Dreizler, Stefan, Hessman, Frederic V., Husser, Tim Oliver, Klapdohr, K.-H., Möllmanns, J., Schünecke, R., Dette, J., Dubbert, J., Miosga, T., Rochus Vogel, A.L., Simons, S., Biriuk, S., Debrah, M., Griemens, M., Hahn, A., Möller, T., Pawlowski, M., Schweizer, M., Speck, A.-L., Zapros, C., Bollmann, T., Habermann, F.N., Haustovich, N., Lauser, M., Liebing, F., Niederstadt, F., Hoppen, K., Kindermann, D., Küppers, F., Rauch, B., Althoff, F., Horstmann, M., Kellerman, J.N., Kietz, R., Nienaber, T., Sauer, M., Secci, A., Wüllner, L.   +41 more
openaire   +3 more sources

The white dwarf binary pathways survey – VIII. A post-common envelope binary with a massive white dwarf and an active G-type secondary star

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT The white dwarf binary pathways survey is dedicated to studying the origin and evolution of binaries containing a white dwarf and an intermediate-mass secondary star of the spectral type A, F, G, or K (WD + AFGK). Here, we present CPD-65 264, a new post-common envelope binary with an orbital period of 1.37 d that contains a ...
M S Hernandez, M R Schreiber, S G Parsons, B T Gänsicke, O Toloza, M Zorotovic, R Raddi, A Rebassa-Mansergas, J J Ren   +8 more
openaire   +4 more sources