Results 111 to 120 of about 508,501 (339)

Editorial: The Effect of Stellar Multiplicity on Exoplanetary Systems

Frontiers in Astronomy and Space Sciences, 2022
Steve B. Howell, Rachel A. Matson, Francesco Marzari   +2 more
doaj   +1 more source

TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

The Astrophysical Journal
We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, P _out , of only 24.5 days. This “eclipses” the previous record set by λ Tauri at 33.02 days, which held for 68 yr.
V. B. Kostov, S. A. Rappaport, T. Borkovits, B. P. Powell, R. Gagliano, M. Omohundro, I. B. Bíró, M. Moe, S. B. Howell, T. Mitnyan, C. A. Clark, M. H. Kristiansen, I. A. Terentev, H. M. Schwengeler, A. Pál, A. Vanderburg   +15 more
doaj   +1 more source

Towards multiple-star population synthesis [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
The multiplicities of stars, and some other properties, were collected recently by Eggleton & Tokovinin, for the set of 4559 stars with Hipparcos magnitude brighter than 6.0 (4558 excluding the Sun). In this paper I give a numerical recipe for constructing, by a Monte Carlo technique, a theoretical ensemble of multiple stars that resembles the ...
openaire   +3 more sources

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

FEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki, Masae Ohtsuka, Takeshi Nakano, Masaru Tanokura, Takuya Miyakawa   +4 more
wiley   +1 more source

The frequency of planets in multiple systems

, 2007
The frequency of planets in binaries is an important issue in the field of extrasolar planet studies, because of its relevance in estimating of the global planet population of our Galaxy and the clues it can give to our understanding of planet formation ...
Allen, Beuzit, Boss, Burgasser, Burgasser, Butler, Butler, Chakraborty, Chauvin, Cumming, Debes, Delfosse, Desidera, Desidera, Duquennoy, Duquennoy, Eggenberger, Els, Fabricius, Fischer, Fischer, Fischer, Fisher, Girardi, Gizis, Gizis, Golimowski, Gould, Gratton, Griffin, Halbwachs, Halbwachs, Hale, Heintz, Holman, Huensch, Jones, Jones, Konacki, Lagrange, Latham, Linsky, Liu, Luhman, Lépine, M. Bonavita, Makarov, Marcy, Marcy, Martín, Mayor, Mugrauer, Mugrauer, Nidever, Nordström, Perrier, Pfahl, Pichardo, Pinfield, Pourbaix, Quist, Raghavan, Reffert, Reid, S. Desidera, Salim, Thébault, Thévenin, Tinney, Tokovinin, Tokovinin, Turner, Valenti, Vogt, Wittenmyer, Worley, Worley, Worley, Wright, Zucker   +79 more
core   +2 more sources

Spectroscopic Orbits of Subsystems in Multiple Stars. XI

The Astronomical Journal
Adding to the large radial velocity survey of nearby solar-type stars (summary in Tokovinin, 2023a), spectroscopic orbits are determined for four hierarchical systems: HIP 49442 (inner and outer periods of 164.55 days and 34 yr, respectively), HIP 55691 (
Andrei Tokovinin
doaj   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

FEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke, Nils Alexander Lakomek, Georg Groth   +2 more
wiley   +1 more source

A working model for cytoplasmic assembly of H/ACA snoRNPs

FEBS Letters, EarlyView.
Dyskerin is the component of nuclear H/ACA ribonucleoproteins (RNPs) endowed with pseudouridine synthase catalytic activity. Two isoforms of human dyskerin have been characterized: the abundant Iso1, mainly nuclear, and the shorter Iso3, mainly cytoplasmic but occasionally imported into nuclei.
Alberto Angrisani, Maria Furia
wiley   +1 more source

The SEGUE Stellar Parameter Pipeline. I. Description and Initial Validation Tests

, 2007
We describe the development and implementation of the SEGUE (Sloan Extension for Galactic Exploration and Understanding) Stellar Parameter Pipeline (SSPP).
A.-Li Luo, Abazajian, Abazajian, Abazajian, Adelman-McCarthy, Adelman-McCarthy, Adelman-McCarthy, Allende Prieto, Allende Prieto, Alvares, An, Asplund, Bagnulo, Beers, Beers, Beers, Brian Yanny, Carlos Allende Prieto, Castelli, Castelli, Cayrel, Constance M. Rockosi, Coryn A. L. Bailer-Jones, Covey, Gratton, Grevesse, Gunn, Gunn, Hao-Tong Zhang, Hawley, Heidi J. Newberg, Ivezić, John E. Norris, Kevin R. Covey, Koesterke, Kurucz, Lars Koesterke, Lee, Lupton, Morrison, Nelder, Paola Re Fiorentin, Pier, Reimers, Ronald Wilhelm, Schlegel, Stoughton, Strauss, Thirupathi Sivarani, Timothy C. Beers, Valdes, Wilhelm, Wisotzki, York, Young Sun Lee, Zhao   +55 more
core   +1 more source

Mechanistic basis for inhibition of the extended‐spectrum β‐lactamase GES‐1 by enmetazobactam and tazobactam

FEBS Letters, EarlyView.
Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer, Philip Hinchliffe, Marko Hanževački, Christopher R. Bethel, Catherine L. Tooke, Marc W. Van der Kamp, Krisztina M. Papp‐Wallace, Robert A. Bonomo, Stuart Shapiro, Adrian J. Mulholland, James Spencer   +10 more
wiley   +1 more source