Results 91 to 100 of about 34,380 (305)

AT 2019aalc: A Bowen Fluorescence Flare with a Precursor Flare in an Active Galactic Nucleus

The Astrophysical Journal
AT 2019aalc is a peculiar sequence of highly variable emission events observed towards the nucleus of the broad-line active galactic nucleus (AGN) SDSS J152416.66+045119.0.
Marzena Śniegowska, Benny Trakhtenbrot, Lydia Makrygianni, Iair Arcavi, Claudio Ricci, Sara Faris, Biswaraj Palit, D. Andrew Howell, Megan Newsome, Joseph Farah, Curtis McCully, Estefania Padilla-Gonzalez, Giacomo Terreran   +12 more
doaj   +1 more source

Optical variability of the blazar 3C 454.3 during 2007-2010

EPJ Web of Conferences, 2013
The optical variability of the blazar 3C 454.3 during 2007-2010 has been studied using the results of multicolor (BVRIJHK) observations. The existence of two variable synchrotron sources was found.
Hagen-Thorn V.A., Larionov V.M., Arkharov A.A., Hagen-Thorn E.I., Blinov D.A.   +4 more
doaj   +1 more source

GRB 050713A: High Energy Observations of the GRB Prompt and Afterglow Emission

, 2006
Swift discovered GRB 050713A and slewed promptly to begin observing with its narrow field instruments 72.6 seconds after the burst onset, while the prompt gamma-ray emission was still detectable in the BAT.
A. D. Falcone, A. P. Beardmore, A. Stamerra, Aptekar R. L., Barthelmy S., Burrows D. N., C. Pagani, D. C. Morris, D. N. Burrows, H. Krimm, J. Reeves, M. Garczarczyk, M. Gaug, M. Teshima, Mirzoyan R., N. Galante, N. Gehrels, O. Godet, Piro L., S. Golenetskii, S. Mizobuchi, V. Pal’shin   +21 more
core   +3 more sources

Effect of Time to Start of Biologic Therapy on Treatment Response in Childhood Arthritis: Results From the UCAN CAN‐DU Cohort

Arthritis &Rheumatology, EarlyView.
Objective To estimate the effect of time from symptom onset to start of biologic treatment on achieving inactive arthritis within six months in a cohort of patients with juvenile idiopathic arthritis (JIA). Methods The international UCAN CAN‐DU study prospectively enrolled patients with JIA across Canada and the Netherlands.
Jelleke B. de Jonge, Sytze de Roock, Dieneke Schonenberg‐Meinema, J. Merlijn van den Berg, Deborah A. Marshall, Sebastiaan J. Vastert, Rae S. M. Yeung, Joost F. Swart, Susanne M. Benseler, on behalf of the UCAN CAN‐DU and UCAN CURE consortia, Adam Huber, Bianca Lang, Chelsea DeCoste, Elizabeth Stringer, Suzanne Ramsey, Alan Rosenberg, Kate Neufeld, Mehul Jariwala, Tristan Kerr, Alexander Mosoiu, Alisa Rachlis, Amy Xu, Arthur Cheng, Brenleigh Jebb, Brian Feldman, Bruno Pereira, Deborah Levy, Dilan Dissanayake, Elizaveta Limenis, Evelyn Rozenblyum, Harper Cheng, Jennifer Ji Young Lee, Lynn Spiegel, Rayfel Schneider, Ronald Laxer, Ruud Verstegen, Shirley Tse, Trang Duong, Andrea Human, David Cabral, Herman Tam, Jaime Guzman, Kim Morishita, Kristin Houghton, Lori Tucker, Mercedes Chan, Ross Petty, Tommy Gerschman, Annet van Royen‐Kerkhof, Berent Prakken, Erika Van Nieuwenhove, Marc Jansen, Nico Wulffraat, Ciarán Duffy, Nadia Luca, Roman Jurencak, Tala El Tal, Claire LeBlanc, Gaëlle Chédeville, Piya Lahiry, Rosie Scuccimarri, Sarah Campillo, Clare Hutchinson, Daniah Basodan, Dax G. Rumsey, Hon Yan Ng, Jeanine McColl, Lillian Lim, Tara McGrath, Danielle Brinkman, Petra Hissink Muller, Elizabeth Legger, Wineke Armbrust, Ellen Schatorje, Esther Hoppenreijs, Elodie Boudes, Gillian Currie, Heinrike Schmeling, Muhammed Dhalla, Nicole Johnson, Paivi Miettunen, Ravneet Sran, Rebeka Stevenson, Erkan Demirkaya, Jonathan Park, Roberta Berard, Giske Biesbroek, Mariken Gruppen, Gordon Soon, Joseph Cafazzo, Liane Heale, Michelle Batthish, Tania Cellucci, Lily Lim, Maarten IJzerman, Marinka Twilt, Marleen Verkaaik, Philomine van Pelt, Sylvia Kamphuis, Michelle Kip, Nickolas Blanchette, Paul Dancey, Regina de Geus   +102 more
wiley   +1 more source

A circular white-light flare with impulsive and gradual white-light kernels

Nature Communications, 2017
White-light flares are rare solar events entailing emission in the optical continuum. Here, the authors report a nearly circular white-light flare observed on March 10th 2015 that contains simultaneously both impulsive and gradual white-light kernels.
Q. Hao, K. Yang, X. Cheng, Y. Guo, C. Fang, M. D. Ding, P. F. Chen, Z. Li   +7 more
doaj   +1 more source

Unusual Flaring Activity in the Blazar PKS 1424-418 during 2008-2011

, 2014
Context. Blazars are a subset of active galactic nuclei (AGN) with jets that are oriented along our line of sight. Variability and spectral energy distribution (SED) studies are crucial tools for understanding the physical processes responsible for ...
Angelakis, E., Bastieri, D, Blanchard, J. M., Buson, S., Ciprini, S., Cutini, S., D'Ammando, F., Desiante, R., Donato, D., Dutka, M., Edwards, P. G., Finke, J., Fuhrmann, L., Gurwell, M. A., Hauser, M., Kadler, M., Larsson, S., Longo, F., Lovell, J. E. J., Müller, C., Ojha, R., Stevens, J., Thompson, D. J., Wagner, S., Wehrle, A. E., Zensus, J. A., Zook, A.   +26 more
core   +1 more source

Tofacitinib for the Treatment of Juvenile Idiopathic Arthritis: Patient‐Reported Outcomes in a Phase 3, Randomized, Double‐Blind, Placebo‐Controlled Withdrawal Trial

Arthritis &Rheumatology, EarlyView.
Objective Juvenile idiopathic arthritis (JIA) is associated with impaired overall health‐related quality of life (HRQoL). We evaluated the impact of tofacitinib on patient‐reported outcomes (PROs) in patients with JIA. Methods This was a post hoc analysis of a phase 3, randomized, double‐blind, placebo‐controlled withdrawal trial (NCT02592434) in ...
Hermine I. Brunner, Ekaterina Alexeeva, Marcia Bandeira, Ruy Carrasco, Jeffrey Chaitow, Peter Chiraseveenuprapund, Tracy V. Ting, Muferet Erguven, Beth Gottlieb, Sheila Knupp Oliveira, Pooja N. Patel, Seza Ozen, Claudia Saad Magalhaes, Inmaculada Calvo Penadés, David Gruben, Rebecca Germino, Holly B. Posner, Lori Stockert, Alberto Martini, Daniel J. Lovell, Nicolino Ruperto, for the Paediatric Rheumatology International Trials Organisation (PRINTO) and Pediatric Rheumatology Collaborative Study Group (PRCSG)   +21 more
wiley   +1 more source

Is OJ 287 a Single Supermassive Black Hole?

Universe, 2020
Light curves for more than century optical photometric observations of the blazar OJ 287 reveals strong flares with a quasi-period of about 12 years. For a long time, this period has been interpreted by processes in a binary black hole system. We propose
Marina S. Butuzova, Alexander B. Pushkarev   +1 more
doaj   +1 more source

X-Ray Flares and Oscillations from the Black Hole Candidate X-Ray Transient XTE J1650-500 at Low Luminosity

, 2003
We report on X-ray observations made with the Rossi X-ray Timing Explorer of the black hole candidate (BHC) transient XTE J1650-500 at the end of its first, and currently only, outburst.
Augusteijn T., Baganoff F. K., Blandford R. D., Bradt H. V., Castro-Tirado A. J., Castro-Tirado A. J., Chevalier C., di Matteo T., Eckart A., Emrah Kalemci, Garcia M. R., Groot P., Hameury J., John A. Tomsick, Markwardt C., Osaki Y., Philip Kaaret, Remillard R., Revnivtsev M., Sanchez-Fernandez C., Stephane Corbel, Tomsick J. A., Tomsick J. A., Wijnands R.   +23 more
core   +1 more source

Risk factors for relapse in ANCA‐associated vasculitis among patients with relapse after induction of remission with rituximab

Arthritis &Rheumatology, Accepted Article.
Objective To determine risk factors for relapse of ANCA‐associated vasculitis (AAV) after re‐induction of remission with rituximab and discontinuation of maintenance therapy. Methods This is a post‐hoc analysis of the RITAZAREM clinical trial. Patients 15 years or older with AAV and a positive test for anti‐proteinase‐3 (PR3‐) or anti‐myeloperoxidase ...
Ellen Romich, Joshua F. Baker, Thomas R. Riley IV, Ian Green, Rennie L. Rhee, Carol A. McAlear, Ulrich Specks, Rona M. Smith, David R. Jayne, Peter A. Merkel, for the RITAZAREM Investigators   +10 more
wiley   +1 more source