Results 41 to 50 of about 2,994,184 (253)

Rotation in sdB stars as revealed by stellar oscillations

Open Astronomy, 2018
An interesting opportunity offered by the detection of stellar oscillations is the possibility to infer the internal rotation rate of a star through the so-called rotational splittings. Such seismic measurements remained rather scarce for hot B subdwarf (
Charpinet Stephane, Giammichele Noemi, Zong Weikai, Van Grootel Valérie, Brassard Pierre, Fontaine Gilles   +5 more
doaj   +1 more source

MAGNETISM OF WHITE DWARFS (intermediate results of a survey for kilogauss magnetic fields in white dwarfs)

Odessa Astronomical Publications, 2017
We shortly present intermidiate results of a survey for weak magnetic fields among degenerate stars (white dwarfs and hot subdwarf stars). Kilogauss upper limits of longitudinal magnetic fields are presented for several brightest DA white dwarfs and new ...
G. Valyavin, S. Bagnulo, S. Fabrika, A. Reisenegger, G. A. Wade, Inwoo Han, D. Monin   +6 more
doaj   +1 more source

ELM of ELM-WD: An Extremely-low-mass Hot Star Discovered in LAMOST Survey

The Astronomical Journal, 2023
The extremely-low-mass white dwarfs (ELM WDs) and pre-ELM WDs are helium-core white dwarfs with mass
Hailong Yuan (袁海龙), Zhenwei Li (李振威), Zhongrui Bai (白仲瑞), Yiqiao Dong (董义乔), Mengxin Wang (汪梦欣), Sicheng Yu (余思成), Xuefei Chen (陈雪飞), Yongheng Zhao (赵永恒), Yaoquan Chu (褚耀泉), Haotong Zhang (张昊彤)   +9 more
doaj   +1 more source

White dwarf collisions and the meteoritic Ne-E anomaly

, 2018
The 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018The analysis of noble gases in primitive meteorites has shown the existence of anomalous isotopic abundances when compared with the average Solar System ...
Isern, J., Bravo, E.
core   +1 more source

SemanticST: A Scalable Multi‐Contextual Graph Learning Framework for Uncovering Spatial Niches and Robust Multi‐Sample Integration in Spatial Transcriptomics

Advanced Science, EarlyView.
Technical limitations often let dominant signals overshadow rare cell types and fine‐grained heterogeneity in spatial transcriptomics. SemanticST, a graph neural network using multi‐semantic graph fusion and a novel min‐cut loss, recovers these subtle patterns.
Roxana Zahedi, Ahmadreza Argha, Nona Farbehi, Ivan Bakhshayeshi, Thantrira Porntaveetus, Youqiong Ye, Nigel H. Lovell, Hamid Alinejad‐Rokny   +7 more
wiley   +1 more source

A Determination of the Local Density of White Dwarf Stars [PDF]

, 2001
The most recent version of the Catalog of Spectroscopically Identified White Dwarfs lists 2249 white dwarf stars. Among these stars are 109 white dwarfs that have either reliable trigonometric parallaxes or color-based distance moduli that place them at ...
Sión, Edward M., Terry D. Oswalt, Holberg, J. B., sion, E. M., J. B. Holberg, E. M. Sion, Holberg, Jay B., Oswalt, Terry D.   +7 more
core   +1 more source

TED1 Promotes the Assembly of SCFD3‐D14‐D53 to Reinforce Strigolactone Signaling in Rice

Advanced Science, EarlyView.
This study identifies TED1 as a positive regulator of strigolactones (SL) signaling in rice. The ted1 mutants display dwarfism and increased tillering with significantly reduced SLs sensitivity. Through its longer C‐terminal region, TED1 interacts with D53 and D14 to promote the assembly of SCFD3‐D14‐D53, thereby facilitating the efficient ...
Sheng Luo, Chuanyin Wu, Miao Feng, Wenfan Luo, Rong Miao, Jinsheng Qian, Fan Wang, Chunlei Zhou, Bojuan Liu, Jiale Shao, Ziqi Xun, Yehui Xiong, Zhichao Zhao, Cailin Lei, Shanshan Zhu, Yulong Ren, Xin Wang, Xiuping Guo, Haiyang Wang, Zichao Li, Zhijun Cheng, Qibing Lin, Jianmin Wan   +22 more
wiley   +1 more source

Shocking and Mass Loss of Compact Donor Stars in Type Ia Supernovae

The Astrophysical Journal
Type Ia supernovae arise from thermonuclear explosions of white dwarfs accreting from a binary companion. Following the explosion, the surviving donor star leaves at roughly its orbital velocity.
Tin Long Sunny Wong, Christopher J. White, Lars Bildsten   +2 more
doaj   +1 more source

The white dwarf binary pathways survey IV: three close white dwarf binaries with G-type secondary stars [PDF]

, 2021
Constraints from surveys of post common envelope binaries (PCEBs) consisting of a white dwarf plus an M-dwarf companion have led to significant progress in our understanding of the formation of close white dwarf binary stars with low-mass companions. The
Gansicke, B. T., Rebassa Mansergas, Alberto, Pastén, E., Zorotovic, Mónica, Schreiber, M. R., Rebassa-Mansergas, A., Toloza, O., Ren, J. J., Toloza, Odette, Parsons, Steven, Irawati, P., Hernández, M., Gänsicke, Boris T., Ren, J.J., Tappert, C., Hernandez, M.S., Rittipruk, P., Lagos, F., Schreiber, M.R., Raddi, R., Zorotovic, M., Hernandez, M. S., Irawati, Puji, Ren, Juanjuan, Tovmassian, G., Parsons , S. G., Lagos, Francisco, Raddi, Roberto, Parsons, S. G., Gänsicke, B.T., Parsons, S.G., Schreiber, Mathias R., Rebassa-Mansergas, Alberto, Tovmassian, Gagik   +33 more
core   +1 more source

The BTB/POZ‐MATH Protein ZmBPM1 Interacts With Autophagy‐related Protein ZmATG6 and Modulates the NLR Protein Rp1‐D21‐Mediated Defense Response in Maize

Advanced Science, EarlyView.
The maize BTB/POZ‐MATH (BPM) protein ZmBPM1 interacts with autophagy‐related protein ZmATG6 to relocate the NLR protein Rp1‐D21 from the nucleo‐cytoplasmic compartment into autophagosome‐like puncta, leading to autophagy‐mediated turnover and suppressing the hypersensitive response.
Chang‐Xiao Tang, Tong‐Tong Liu, Qi‐Dong Ge, Xiao‐Ying Liu, Wanxiao Wang, Yang Sun, Yanfei Liu, Faqiang Li, Guan‐Feng Wang   +8 more
wiley   +1 more source