Results 81 to 90 of about 91,199 (294)

Testing Models of Accretion-driven Coronal Heating and Stellar Wind Acceleration for T Tauri Stars

, 2009
Classical T Tauri stars are pre-main-sequence objects that undergo simultaneous accretion, wind outflow, and coronal X-ray emission. The impact of plasma on the stellar surface from magnetospheric accretion streams is likely to be a dominant source of ...
Aarnio, Airapetian, Aschwanden, Aschwanden, Aschwanden, Azevedo, Ballot, Baraffe, Batalha, Blandford, Boldyrev, Brickhouse, Brown, Calvet, Calvet, Calvet, Camenzind, Chae, Costa, Cranmer, Cranmer, Cranmer, Cranmer, Dahlem, Drake, Edwards, Feldmeier, Fendt, Ferguson, Gregory, Gregory, Gullbring, Gullbring, Gullbring, Gómez de Castro, Hartigan, Hartmann, Hartmann, Holzwarth, Hujeirat, Jardine, Johns-Krull, Judge, Kastner, Kastner, Koldoba, Kolmogorov, Krasnopolsky, Käpylä, Lamzin, Landau, Landi, Lynden-Bell, Martens, Matt, Matt, Matt, Mignone, Mihalas, Muzerolle, Muzerolle, Neuhäuser, Nguyen, Paatz, Parker, Patsourakos, Preibisch, Preibisch, Press, Rappazzo, Rappazzo, Romanova, Romanova, Romanova, Romanova, Saar, Safier, Scheurwater, Schmutzler, Shu, Stassun, Stassun, Stempels, Stenflo, Steven R. Cranmer, Suzuki, Suzuki, Uchida, Ustyugova, van Ballegooijen, Warren, White, Zirker   +92 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The Growth of Galaxy Stellar Haloes over 0.2 ≤ z ≤ 1.1

The Astrophysical Journal
Galaxies are predicted to assemble their stellar haloes through the accretion of stellar material from interactions with their cosmic environment. Observations that trace stellar halo buildup probe the processes that drive galaxy size and stellar mass ...
Devin J. Williams, Ivana Damjanov, Marcin Sawicki, Harrison Souchereau, Lingjian Chen, Guillaume Desprez, Angelo George, Marianna Annunziatella, Stéphane Arnouts, Stephen Gwyn, Danilo Marchesini, Anna Sajina   +11 more
doaj   +1 more source

Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. II. Evidence for Tidally Enhanced Star Formation and Black Hole Accretion

, 2011
Active galactic nuclei (AGNs) are occasionally seen in pairs, suggesting that tidal encounters are responsible for the accretion of material by both central supermassive black holes (BHs). In Paper I of this series, we selected a sample of AGN pairs with
Abazajian, Abazajian, Adelman-McCarthy, Adelman-McCarthy, Adelman-McCarthy, Aihara, Bahcall, Balogh, Barth, Barton, Blanton, Blanton, Brinchmann, Ciotti, Ciotti, Coil, Cole, Comerford, Conselice, Daddi, Davis, Djorgovski, Drory, Ellison, Elvis, Ferrarese, Fu, Förster Schreiber, Gebhardt, Graham, Grogin, Hao, Heckman, Heckman, Hennawi, Hennawi, Ho, Holmberg, Hopkins, Hopkins, Kauffmann, Kaviraj, Kewley, Kochanek, Kormendy, Koss, Lauer, Lilly, Liu, Liu, Liu, Liu, Lotz, Lotz, López-Sanjuan, McGurk, Merritt, Michael A. Strauss, Miller, Myers, Noguchi, Petrosian, Reyes, Salim, Schawinski, Schlegel, Schmitt, Scoville, Serber, Shen, Shen, Shimasaku, Silverman, Silverman, Smith, Springel, Strateva, Strauss, Struck, Tacconi, Tremaine, Tremonti, Ueda, Vorontsov-Velyaminov, Wang, Woods, Woods, Worthey, Xin Liu, York, Yue Shen, Zhou   +91 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Solar-like Oscillations in Accreting Pre-main-sequence Stars: Insights and Prospects

The Astrophysical Journal
We present theoretical predictions for solar-like oscillators in the pre-main-sequence (pre-MS) phase of stellar evolution. Our pre-MS models start from a stellar seed of 0.01 solar masses that gains mass through accretion, offering an alternative ...
Johannes Jørgensen, Konstanze Zwintz, Ebraheem Farag, Eduard I. Vorobyov, Thomas Steindl   +4 more
doaj   +1 more source

A New Parameter In Accretion Disk Model

, 2000
Taking optically thin accretion flows as an example, we investigate the dynamics and the emergent spectra of accretion flows with different outer boundary conditions (OBCs) and find that OBC plays an important role in accretion disk model.
AF Illarionov, E Quataert, F Yuan, F Yuan, IV Igumenshchev, JF Lu, LS Sparke, MA Abramowicz, MA Abramowicz, NI Shakura, R Coker, R Matsumoto, R Narayan, R Narayan, R Narayan, X Chen, X Chen   +16 more
core   +1 more source

Stellar accretion of matter possessing angular momentum

The Astrophysical Journal, 1987
Observations of novae and theoretical results, in which the authors studied the nova outburst by radially accreting H-rich matter onto an He white dwarf, have convinced them that realistic nova models must be based on accretion that includes the angular momentum of the accreting matter.
G. Siegfried Kutter, Warren M. Sparks
openaire   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

FEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López, Özge Yilmaz Ardicli, Mübeccel Akdis   +2 more
wiley   +1 more source

On rapid migration and accretion within disks around supermassive black holes

, 2011
Galactic nuclei should contain a cluster of stars and compact objects in the vicinity of the central supermassive black hole due to stellar evolution, minor mergers and gravitational dynamical friction.
Alexander, Armitage, Artymowicz, B. McKernan, Baruteau, Chang, Collin, Cordes, Crummy, Gierliński, Goodman, H. B. Perets, Ho, K. E. S. Ford, Kauffmann, Kormendy, Krolik, L. M. Winter, Levin, Lodato, Lyra, Masset, McKernan, McKernan, McKernan, Merritt, Miralda Escudé, Miralda Escudé, Morris, Nayakshin, Nelson, Noble, Ostriker, Paardekooper, Pepliński, Pepliński, Perets, Pier, Rauch, Remillard, Schödel, Shakura, Shlosman, Sirko, Subr, Syer, T. Yaqoob, Toropina, Vilkoviskij, W. Lyra, Winter   +50 more
core   +1 more source