Results 51 to 60 of about 35,614 (300)

The Meissner effect for weakly isolated horizons

, 2017
Black holes are important astrophysical objects describing an end state of stellar evolution, which are observed frequently. There are theoretical predictions that Kerr black holes with high spins expel magnetic fields. However, Kerr black holes are pure
Gürlebeck, Norman, Scholtz, Martin
core   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Circumstellar Disk Accretion Across the Lagoon Nebula: The Influence of Environment and Stellar Mass

The Astronomical Journal
Pre-main-sequence disk accretion is pivotal for determining the final stellar properties and the early conditions for close-in planets. We aim to establish the impact of internal (stellar mass) and external (radiation field) parameters on the disk ...
Laura Venuti, Ann Marie Cody, Giacomo Beccari, Luisa M. Rebull, Michael J. Irwin, Apoorva Thanvantri, Sowmya Thanvantri, Silvia H. P. Alencar, Clara O. Leal, Geert Barentsen, Janet E. Drew, Steve B. Howell   +11 more
doaj   +1 more source

Very Low Mass Stars and Brown Dwarfs in Taurus-Auriga

, 2002
We present high resolution optical spectra obtained with the HIRES spectrograph on the Keck I telescope of low mass T Tauri stars and brown dwarfs (LMTTs) in Taurus-Auriga.
Baraffe I., Bertout C., Bouvier J., Chabrier G., Delfosse X., Gibor Basri, Herbig G. H., Hessman F. V., Jevremovic D., Magazzu A., Russel J. White, Siess L., Sterzik M. F.   +12 more
core   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Evolution of the Accretion Rate of Young Intermediate-mass Stars: Implications for Disk Evolution and Planet Formation

The Astronomical Journal
This work presents a study of the evolution of the stellar accretion rates of pre-main-sequence intermediate-mass stars. We compare the accretion rate of the younger intermediate-mass T Tauri stars (IMTTSs) with the older Herbig stars into which they ...
Sean D. Brittain, Joshua W. Kern, Gwendolyn Meeus, René D. Oudmaijer   +3 more
doaj   +1 more source

Variabiity of young stellar objects: Accretion, disks, outflows, and magnetic activity [PDF]

Astronomische Nachrichten, 2015
AbstractVariability is a key characteristic of young stars. Two major origins may be distinguished: a scaled‐up version of the magnetic activity seen on main‐sequence stars and various processes related to circumstellar disks, accretion, and outflows. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
openaire   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Planet Formation Regulated by Galactic-scale Interstellar Turbulence

The Astrophysical Journal Letters
Planet formation occurs over a few Myr within protoplanetary disks of dust and gas, which are often assumed to evolve in isolation. However, extended gaseous structures have been uncovered around many protoplanetary disks, suggestive of late-stage infall
Andrew J. Winter, Myriam Benisty, Sean M. Andrews   +2 more
doaj   +1 more source

The burst mode of accretion and disk fragmentation in the early embedded stages of star formation

, 2010
We revisit our original papers on the burst mode of accretion by incorporating a detailed energy balance equation into a thin-disk model for the formation and evolution of circumstellar disks around low-mass protostars.Our model includes the effect of ...
Andrews, Basu, Binney, Boley, Cai, Caselli, D’Alessio, D’Antona, Eduard I. Vorobyov, Enoch, Gammie, Johnson, Kratter, Kratter, Lin, Machida, Masunaga, Mejía, Myers, Nero, Rafikov, Richtmeyer, Scott, Shakura, Shantanu Basu, Shu, Vorobyov, Vorobyov, Vorobyov, Vorobyov, Vorobyov, Vorobyov, Vorobyov, Vorobyov, Zhu, Zhu   +35 more
core   +1 more source