Results 91 to 100 of about 17,300 (305)

TESS Light Curve of the Interacting Binary W Serpentis

The Astronomical Journal
The unusal light curve of the massive eclipsing binary W Ser was recently observed with high S/N and fast cadence by the NASA TESS mission. The TESS light curve records two eclipses and relatively fast variations outside of the eclipses.
Douglas R. Gies, Katherine A. Shepard, Aman Kar, Noel D. Richardson   +3 more
doaj   +1 more source

The XO Planetary Survey Project - Astrophysical False Positives

, 2010
Searches for planetary transits find many astrophysical false positives as a by-product. There are four main types analyzed in the literature: a grazing-incidence eclipsing binary star, an eclipsing binary star with a small radius companion star, a blend
Beatty, Brown, Burke, Burke, Burke, Charbonneau, Christopher J. Burke, Creevey, Dommanget, Drilling, Garcia-Melendo, Hoyer, Jeff A. Valenti, Johns-Krull, Kenneth Janes, Kurucz, McCullough, McCullough, Minniti, Nidever, O’Donovan, Pavel Machalek, Peter R. McCullough, Radosaw Poleski, Skrutskie   +24 more
core   +1 more source

Variability of Luminous Stars in the Large Magellanic Cloud Using 10 Years of ASAS Data [PDF]

, 2010
Motivated by the detection of a recent outburst of the massive luminous blue variable LMC-R71, which reached an absolute magnitude M_V = -9.3 mag, we undertook a systematic study of the optical variability of 1268 massive stars in the Large Magellanic ...
A. Z. Bonanos, Alcock, B. Pilecki, Bonanos, Brunet, Butler, Caldwell, Cook, D. M. Szczygieł, Dobrzycki, Feast, Fiorentino, Freedman, G. Pojmański, Gamen, Garg, Geha, Grindlay, Haefner, J. L. Prieto, K. Z. Stanek, Kałużny, Kozłowski, Leavitt, Leavitt, Leavitt, Lucke, Macri, Massey, Massey, Massey, Ostrov, Parker, Pejcha, Pickering, Pojmański, Pojmański, Pojmański, Prevot-Burnichon, Samus, Sanduleak, Schwarzenberg-Czerny, Seggewiss, Soszyński, Soszyński, Soszyński, Stahl, Thackeray, Udalski, Udalski, van Genderen, Walborn, Walborn, Westerlund, Westerlund, Żebruń   +55 more
core   +2 more sources

Actin Isovariant ACT2‐Mediated Cellular Auxin Homeostasis Regulates Lateral Root Organogenesis in Arabidopsis thaliana

Cytoskeleton, EarlyView.
ABSTRACT Lateral root (LR) organogenesis is regulated by cellular flux of auxin within pericycle cells, which depends on the membrane distribution and polar localization of auxin carrier proteins. The correct distribution of auxin carrier proteins relies on the intracellular trafficking of these proteins aided by filamentous actin as a track.
Aya Hanzawa, Arifa Ahamed Rahman, Abidur Rahman   +2 more
wiley   +1 more source

β Cephei Pulsators in Eclipsing Binaries Observed with TESS

The Astrophysical Journal Supplement Series
The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious discrepancies ...
Christian I. Eze, Gerald Handler
doaj   +1 more source

In Vitro Live Cell Imaging Reveals Nuclear Dynamics and Role of the Cytoskeleton During Asymmetric Division of Pollen Mitosis I in Nicotiana Benthamiana

Cytoskeleton, EarlyView.
ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta, Masako Igarashi, Tomomi Shinagawa, Ikuma Kaneshiro, Haoto Anan, Daisuke Kurihara   +5 more
wiley   +1 more source

Short-period Heartbeat Binaries from TESS Full-frame Images

The Astrophysical Journal Supplement Series
We identify 240 short-period ( P ≲ 10 days) binary systems in Transiting Exoplanet Survey Satellite data, 180 of which are heartbeat binaries. The sample is mostly a mix of A- and B-type stars and primarily includes eclipsing systems, where over 30% of ...
Siddhant Solanki, Agnieszka M. Cieplak, Jeremy Schnittman, John G. Baker, Thomas Barclay, Richard K. Barry, Veselin Kostov, Ethan Kruse, Greg Olmschenk, Brian P. Powell, Stela Ishitani Silva, Guillermo Torres   +11 more
doaj   +1 more source

VW LMi: tightest quadruple system known. Light-time effect and possible secular changes of orbits

, 2008
Tightest known quadruple systems VW LMi consists of contact eclipsing binary with P_12 = 0.477551 days and detached binary with P_34 = 7.93063 days revolving in rather tight, 355.0-days orbit.
D. Baluďanský, Derman, Dumitrescu, Dumitrescu, Dworak, Dworak, European Space Agency, Gómez-Forrellad, Hadrava, Hubscher, Høg, I. Kudzej, Kwee, Lejeune, M. Siwak, M. Vaňko, Mayer, Nelson, Oswalt, P. Dubovský, Popper, Porowski, Pourbaix, Pribulla, Pribulla, Pribulla, Pych, Rucinski, Rucinski, Rucinski, Selam, Skrutskie, Soderhjelm, Sánchez-Bajo, T. Pribulla, Tamuz, Tango, Tokovinin, van Hamme, van Hamme, Š. Parimucha   +40 more
core   +1 more source

A Streamlined High Performance Liquid Chromatography with Tandem Mass Spectrometry Based Workflow for Rapid Screening of Cellular Accumulation of Small Molecules

ChemMedChem, EarlyView.
This study uses six small‐molecule inhibitors to evaluate optimal cellular accumulation assay conditions in a 96‐well format with high performance liquid chromatography with tandem mass spectrometry detection. The obtained medium to high‐throughput workflow is suitable for reliably identifying cellular accumulation, valuable for preclinical selection ...
Alina Metzen, Katharina Rox
wiley   +1 more source

Further Insights Into the Metabolism of LGD‐4033 in Human Urine. Part 1. Structure Elucidation of Additional Important Metabolites

Drug Testing and Analysis, EarlyView.
Well‐characterized, chemically synthesized molecules related to LGD‐4033 metabolism were used as analytical standards for the analysis of LGD‐4033 post‐administration urine samples. This approach offered further insights into LGD‐4033 metabolism, providing solid experimental proof for the structure of important previously reported metabolites and ...
Yiannis S. Angelis, Panagiotis Sakellariou, Mario Thevis, Andreas Thomas, Michael Petrou, Emmanuel N. Pitsinos   +5 more
wiley   +1 more source