Results 51 to 60 of about 2,328,776 (249)

A Search for Minute-timescale Flares from the Transient AT 2024wpp

The Astrophysical Journal
The AT 2018cow-like fast blue optical transient AT 2022tsd showed a large number of a few-minute-duration, high-luminosity (∼10 ^43 erg s ^−1 ) flares. We present an intensive search for such flares from another 18cow-like event, AT 2024wpp. We have used
Eran O. Ofek, Lior Ozer, Ruslan Konno, Nimrod Strasman, Ping Chen, Sagi Ben-Ami, David Polishook, Alexander Krassilchtchikov, Simone Garrappa, Erez A. Zimmermann, Enrico Segre, Asaf Horowicz, Avishay Gal-Yam, Yarin M. Shani, Stanislav Fainer, Michael Engel, Yahel Sofer-Rimalt, Anna Y. Q. Ho, Yossi Shvartzvald, Ofer Yaron, Kris Rybicki, Arie Blumenzweig, Sarah Spitzer, Ron Arad   +23 more
doaj   +1 more source

Quasi-simultaneous Optical Flux and Polarization Variability of the Binary Super Massive Black Hole Blazar OJ 287 from 2015 to 2023: Detection of an Anticorrelation in Flux and Polarization Variability

The Astrophysical Journal Letters, 2023
We study the optical flux and polarization variability of the binary black hole blazar OJ 287 using quasi-simultaneous observations from 2015 to 2023 carried out using telescopes in the USA, Japan, Russia, Crimea, and Bulgaria.
Alok C. Gupta, Pankaj Kushwaha, Mauri J. Valtonen, Sergey S. Savchenko, Svetlana G. Jorstad, Ryo Imazawa, Paul J. Wiita, Minfeng Gu, Alan P. Marscher, Zhongli Zhang, Rumen Bachev, G. A. Borman, Haritma Gaur, T. S. Grishina, V. A. Hagen-Thorn, E. N. Kopatskaya, V. M. Larionov, E. G. Larionova, L. V. Larionova, D. A. Morozova, T. Nakaoka, A. Strigachev, Yulia V. Troitskaya, I. S. Troitsky, M. Uemura, A. A. Vasilyev, Z. R. Weaver, A. V. Zhovtan   +27 more
doaj   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

The Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

The Double Tidal Disruption Event AT 2022dbl Implies that at Least Some “Standard” Optical Tidal Disruption Events Are Partial Disruptions

The Astrophysical Journal Letters
Flares produced following the tidal disruption of stars by supermassive black holes can reveal the properties of the otherwise dormant majority of black holes and the physics of accretion.
Lydia Makrygianni, Iair Arcavi, Megan Newsome, Ananya Bandopadhyay, Eric R. Coughlin, Itai Linial, Brenna Mockler, Eliot Quataert, Chris Nixon, Benjamin Godson, Miika Pursiainen, Giorgos Leloudas, K. Decker French, Adi Zitrin, Sara Faris, Marco C. Lam, Assaf Horesh, Itai Sfaradi, Michael Fausnaugh, Ehud Nakar, Kendall Ackley, Moira Andrews, Panos Charalampopoulos, Benjamin D. R. Davies, Yael Dgany, Martin J. Dyer, Joseph Farah, Rob Fender, David A. Green, D. Andrew Howell, Thomas Killestein, Niilo Koivisto, Joseph Lyman, Curtis McCully, Morgan A. Mitchell, Estefania Padilla Gonzalez, Lauren Rhodes, Anwesha Sahu, Giacomo Terreran, Ben Warwick   +39 more
doaj   +1 more source

From Interferon Signature to the Clinical Landscape: Type I Interferonopathies

Arthritis &Rheumatology, EarlyView.
Objective TypeI interferonopathies are heterogeneous diseases driven by dysregulated type I interferon (IFN‐I) signaling. Diagnosis is challenging due to clinical/molecular variability and the need for IFN‐I quantification. The aim of this study was to characterize the clinical, immunologic, genetic, molecular profiles of patients with suspected ...
Ismail Yaz, Seza Ozen, Hacer Neslihan Bildik, Canberk Ipsir, Dilara Unal, Saliha Esenboga, Begum Cicek, Mehmet Emin Seker, Fatima Aerts‐Kaya, Seher Sener, Mehmet Orhan Erkan, Hanife Avci, Deniz Cagdas, Ilhan Tezcan   +13 more
wiley   +1 more source

Some Studies on Solar Optical Flares Reported under New Classification [PDF]

, 1972
170-174Solar optical flares, numbering 8230, reported during the period September 1967 to November 1969, which covers the peak phase of the current solar cycle, were examined in relation to (1) percentage occurrences under different classes, (2) position
Sarkar, S. K., Gupta, M. K. Das, Mitra, R. K.   +2 more
core  

Exploring the Potential of Cluster Analysis in Identifying Disease Phenotypes in Calcium Pyrophosphate Deposition: Moving From Intuition to Insight

Arthritis &Rheumatology, EarlyView.
Objective Calcium pyrophosphate deposition (CPPD) disease is a heterogeneous condition and is frequently misdiagnosed due to the different clinical presentations and variable disease progression. Aim of this study is to identify clinical phenotypes of CPPD disease by integrating real‐world data from two data sets. Methods Data from the COLCHICORT trial
Greta Pellegrino, Laurène Norberciak, Silvia Sirotti, Abhishek Abhishek, Mariano Andrès, Edoardo Cipolletta, Julien Damart, Renaud Desbarbieux, Pilar Diez, Vincent Ducoulombier, Hang‐Korng Ea, Emilio Filippucci, Charlotte Jauffret, Augustin Latourte, Jean‐Guillaume Letarouilly, Sébastien Ottaviani, Laura Pezzoni, Pascal Richette, Pierre Robinet, Georgios Filippou, Tristan Pascart   +20 more
wiley   +1 more source

Stellar flares

Living Reviews in Solar Physics
Magnetic storms on stars manifest as remarkable, randomly occurring changes of the luminosity over durations that are tiny in comparison to the normal evolution of stars.
Adam F. Kowalski
doaj   +1 more source

Inflammation Unchecked: Concurrent Kawasaki Disease and Stevens‐Johnson Syndrome in an 18‐Month‐Old Child

Arthritis Care &Research, EarlyView.
Catherine Deffendall, Jodi Backalar, Elizabeth Acevedo Zapata, Adriana Della Porta, Lorin Bibb, Tyler Reese, Charlotte M. Brown   +6 more
wiley   +1 more source

Outcomes of Tapering Biologic and Targeted Synthetic Disease‐Modifying Antirheumatic Drugs in Rheumatoid Arthritis: A Multicenter Randomized Noninferiority Trial

Arthritis &Rheumatology, EarlyView.
Objective Evidence supporting tapering of biologic or targeted synthetic disease‐modifying antirheumatic drugs (b/tsDMARDs) in patients with rheumatoid arthritis (RA) with sustained low disease activity (LDA) remains limited. We evaluated the efficacy and safety of a structured b/tsDMARD‐tapering strategy in patients with RA who had achieved sustained ...
Dong‐Jin Park, Sung‐Eun Choi, Ji‐Hyoun Kang, Jung‐Yoon Choe, Hye‐Soon Lee, So‐Young Bang, Yun‐Hong Cheon, Sang‐Il Lee, Mingyo Kim, Yoon‐Kyoung Sung, Soo‐Kyung Cho, Jae Hyun Jung, Sung Hae Chang, Sung Won Lee, Yeon‐Ah Lee, Seung‐Geun Lee, Hyun‐Sook Kim, Seung‐Ki Kwok, Seung‐Cheol Shim, Shin‐Seok Lee   +19 more
wiley   +1 more source