Results 91 to 100 of about 6,507,263 (232)

A study of X-ray flares- I. Active late-type dwarfs

, 2008
We present temporal and spectral characteristics of X-ray flares observed from six late-type G-K active dwarfs (V368 Cep, XI Boo, IM Vir, V471 Tau, CC Eri and EP Eri) using data from observations with the XMM-Newton observatory.
Pandey, J. C., Singh, K. P.
core   +1 more source

X-Ray Flares in Orion Young Stars. II. Flares, Magnetospheres, and Protoplanetary Disks

, 2008
We study the properties of powerful X-ray flares from 161 pre-main-sequence (PMS) stars observed with the Chandra X-ray Observatory in the Orion Nebula region.
M. Jardine, Moira, Gregory, Scott G.; id_orcid, V. Getman, Konstantin, Getman, Konstantin V., Feigelson, Eric D., Garmire, Gordon P., Micela, Giuseppina, D. Feigelson, Eric, Jardine, Moira M., G. Gregory, Scott, Micela, Giusi, P. Garmire, Gordon, M. Jardine, Moira; id_orcid   +12 more
core   +1 more source

Stellar flare detection in XMM-Newton with gradient-boosted trees

Astronomy & Astrophysics
Context. The EXTraS project, based on data collected with the XMM-Newton observatory, provides us with a vast amount of light curves for X-ray sources. For each light curve, EXTraS also provides us with a set of features.
Pasquato Mario, Marelli Martino, De Luca Andrea, Salvaterra Ruben, Carenini Gaia, Belfiore Andrea, Tiengo Andrea, Esposito Paolo   +7 more
doaj   +1 more source

Simulations of X-ray bursts and superbursts [PDF]

, 2015
Observations of neutron star in binary systems provide powerful constrains on the physics at the surface of neutron stars. During the accretion of matter from the companion star, periodic nuclear explosion are triggered in the outer layers of the neutron
Fehlmann, Sofie
core   +1 more source

A Universal Scaling between Damping Time and Period of Quasi-periodic Pulsations from Solar Extreme-Ultraviolet Brightenings to X-Ray Stellar Flares

The Astrophysical Journal Letters
Recent high spatial and temporal resolution extreme-ultraviolet (EUV) imaging observations have revealed that quasi-periodic pulsations (QPPs), a ubiquitous signature of impulsive energy release in solar and stellar flares, are also present in much ...
Daye Lim, Tom Van Doorsselaere, Valery M. Nakariakov, S. Krishna Prasad, David Berghmans, Laura A. Hayes, Kyung-Suk Cho, Sujin Kim   +7 more
doaj   +1 more source

BeppoSAX-WFC catalog of fast X-ray transients

Astronomy & Astrophysics
We performed a search for fast X-ray transients (FXTs), defined for the purposes of this work as transients with durations of longer than one second and shorter than one day. We used data from the Wide Field Camera (WFC) instrument on board the Beppo SAX
in‘t Zand J. J. M., Guidorzi C., Heise J., Amati L., Kuulkers E., Frontera F., Gianfagna G., Piro L.   +7 more
doaj   +1 more source

Expert Perspectives: Defining and Managing Progressive Pulmonary Fibrosis in Systemic Sclerosis

Arthritis &Rheumatology, Volume 78, Issue 11, Page 2189-2202, November 2026.
Systemic sclerosis–associated interstitial lung disease (SSc‐ILD) is one of the leading causes of morbidity and mortality in SSc, affecting up to three‐quarters of patients. The disease course is highly heterogeneous, ranging from indolent, nonprogressive forms to rapidly progressive pulmonary fibrosis (PPF).
Devis Benfaremo, Dinesh Khanna, Corrado Campochiaro, Vincent Cottin, Fabrizio Luppi, Marco Matucci‐Cerinic, Gianluca Moroncini, Yannick Allanore   +7 more
wiley   +1 more source

Consensus Guidelines for Diagnosis and Management of Pyruvate Dehydrogenase Complex Deficiency

Journal of Inherited Metabolic Disease, Volume 49, Issue 6, November 2026.
ABSTRACT Primary pyruvate dehydrogenase complex deficiency (PDCD) comprises a group of monogenic disorders caused by pathogenic variants in genes encoding subunits of, or regulatory components affecting, the pyruvate dehydrogenase complex. The clinical phenotype spans a broad continuum, ranging from early onset congenital lactic acidosis to infantile ...
Nandaki Keshavan, Julia Neugebauer, Marcello Bellusci, Enrico Bertini, Garry Brown, Niklas Darin, Suzanne DeBrosse, Lucy Drexler, Stefan Drexler, Gregory M. Enns, Rebecca D. Ganetzky, Kelly Gilbert, Austin Larson, Rebecca Legi, April N. Lehman, Camile Newby, Manuel Schiff, Rachel Skeath, Peter W. Stacpoole, Sarah Thompson, Emma Watt, Saskia B. Wortmann, Jirair K. Bedoyan, Shamima Rahman   +23 more
wiley   +1 more source

Redefining CHI3L1: Therapeutic Opportunities at the Crossroads of Immune Suppression and Disease Progression

Medicinal Research Reviews, Volume 46, Issue 6, Page 1897-1921, November 2026.
ABSTRACT Chitinase‐3‐like‐1 (CHI3L1, also known as YKL‐40) has been recognized as a biomarker of inflammation and tissue remodeling and has now emerged as a pseudoenzymatic immune checkpoint. Recent structural, immunological, and translational studies redefine it as an active regulator of immune suppression rather than a passive disease marker. Despite
Kirti Upmanyu, Saurabh Upadhyay, Moustafa T. Gabr   +2 more
wiley   +1 more source

Potential Chromospheric Evaporation in the M Dwarf’s Flare Triggered by Einstein Probe Mission

The Astronomical Journal
Although flares from late-type main-sequence stars have been frequently detected in the multiwavelength, the associated dynamical process has been rarely reported so far.
J. Wang, X. Mao, C. Gao, H. Y. Liu, H. L. Li, H. W. Pan, C. Wu, Y. Liu, G. W. Li, L. P. Xin, S. Jin, D. W. Xu, E. W. Liang, W. M. Yuan, J. Y. Wei   +14 more
doaj   +1 more source