Results 91 to 100 of about 207,560 (312)

Fundamental Parameters of the Underlying Be Stars (Review Paper) [PDF]

International Astronomical Union Colloquium, 1987
AbstractThe various methods for determining masses, radii, luminosities, effective temperatures, spectral types, and rotational velocities of the underlying Be stars are reviewed, and representative values listed for each.
openaire   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Detection of the Temperature Dependence of the White Dwarf Mass–Radius Relation with Gravitational Redshifts

The Astrophysical Journal
Models predict that the well-studied mass–radius relation of white dwarf stars depends on the temperature of the star, with hotter white dwarfs having larger masses at a given radius than cooler stars.
Nicole R. Crumpler, Vedant Chandra, Nadia L. Zakamska, Gautham Adamane Pallathadka, Stefan Arseneau, Nicola Gentile Fusillo, J. J. Hermes, Carles Badenes, Priyanka Chakraborty, Boris T. Gänsicke, Stephen P. Schmidt   +10 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

TESS Asteroseismic Masses and Radii of Red Giants with (and without) Planets

The Astrophysical Journal
We present a study of asteroseismically derived surface gravities, masses, and radii of a sample of red giant stars both with and without confirmed planetary companions using TESS photometric light curves. These red giants were drawn from radial velocity
Myles Pope, Joleen K. Carlberg, Jeff Valenti, Doug Branton   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

An Eclipsing Binary Comprising Two Active Red Stragglers of Identical Mass and Synchronized Rotation: A Post-mass-transfer System or Just Born That Way?

The Astrophysical Journal, 2023
We report the discovery of 2M0056–08 as an equal-mass eclipsing binary (EB), comprising two red straggler stars (RSSs) with an orbital period of 33.9 days. Both stars have masses of ≈1.419 M _⊙ , identical to within 0.2%.
Keivan G. Stassun, Guillermo Torres, Marina Kounkel, Benjamin M. Tofflemire, Emily Leiner, Dax L. Feliz, Don M. Dixon, Robert D. Mathieu, Natalie Gosnell, Michael Gully-Santiago   +9 more
doaj   +1 more source

Axial quasinormal modes of static neutron stars in the nonminimal derivative coupling sector of Horndeski gravity: spectrum and universal relations for realistic equations of state

, 2018
We study axial quasinormal modes of static neutron stars in the nonminimal derivative coupling sector of Horndeski theory. We focus on the fundamental curvature mode, which we analyse for ten different equations of state with different matter content.
Blázquez-Salcedo, Jose Luis, Eickhoff, Kevin   +1 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Automatic Determination of Stellar Atmospheric Parameters and Construction of Stellar Spectral Templates of the Guoshoujing Telescope (LAMOST)

, 2011
A number of spectroscopic surveys have been carried out or are planned to study the origin of the Milky Way. Their exploitation requires reliable automated methods and softwares to measure the fundamental parameters of the stars.
A-Li Luo, Adelman-McCarthy, Allende Prieto, Allende Prieto, Alonso, An, Bagnulo, Bailer-Jones, Bailer-Jones, Bailer-Jones, Beers, Bond, Castelli, Cayrel, Covey, Hai-Ning Li, Hao-Tong Zhang, Hawley, Heap, Ivezić, Jian-Jun Chen, Jian-Nan Zhang, Jian-Rong Shi, Jofre, Jurić, Katz, Koleva, Kurucz, Lee, Lee, Luo, Luo, Makarova, Michielsen, Munari, Noguchi, Peng Wei, Percival, Philippe Prugniel, Prugniel, Prugniel, Prugniel, Prugniel, Ramsey, Recio-Blanco, Rockosi, Rodríguez-Merino, Schiavon, Sharina, Short, Siebert, Smolinski, Soubiran, Steinmetz, Su, Tull, Valdes, Vazdekis, Vogt, Wei-Xiang Dong, Wilhelm, Wylie-de Boer, Wyse, Xing, Yan-Chun Liang, Yanny, Yong-Heng Zhao, York, Yue Wu, Zacharias, Zhao, Zhao, Zhong-Rui Bai, Zhu, Zwitter, Zwitter   +75 more
core   +1 more source