Results 31 to 40 of about 2,328,776 (249)

Results of the Optical Downlink Experiment KIODO from OICETS Satellite to Optical Ground Station Oberpfaffenhofen (OGS-OP) [PDF]

, 2007
Optical LEO downlinks from the Japanese OICETS to the optical ground station built by the German Aerospace Center (DLR) near Munich have been performed. This was the first optical LEO downlink on European grounds.
Perlot, Nicolas, Giggenbach, Dirk, Takayama, Yoshihisa, Horwath, Joachim, N. Perlot, Brechtelsbauer, Martin, Y. Takayama, Knapek, Markus, D. Giggenbach, Jono, Takashi, J. Horwath, M. Brechtelsbauer, T. Jono, M. Knapek   +13 more
core   +1 more source

Unusual Hard X-Ray Flares Caught in NICER Monitoring of the Binary Supermassive Black Hole Candidate AT2019cuk/Tick Tock/SDSS J1430+2303

The Astrophysical Journal Letters, 2023
The nuclear transient AT2019cuk/Tick Tock/SDSS J1430+2303 has been suggested to harbor a supermassive black hole (SMBH) binary near coalescence. We report results from high-cadence NICER X-ray monitoring with multiple visits per day from 2022 January to ...
Megan Masterson, Erin Kara, Dheeraj R. Pasham, Daniel J. D’Orazio, Dominic J. Walton, Andrew C. Fabian, Matteo Lucchini, Ronald A. Remillard, Zaven Arzoumanian, Otabek Burkhonov, Hyeonho Choi, Shuhrat A. Ehgamberdiev, Elizabeth C. Ferrara, Muryel Guolo, Myungshin Im, Yonggi Kim, Davron O. Mirzaqulov, Gregory S. H. Paek, Hyun-Il Sung, Joh-Na Yoon   +19 more
doaj   +1 more source

OPTICAL DISCOVERY OF PROBABLE STELLAR TIDAL DISRUPTION FLARES [PDF]

, 2011
Using archival Sloan Digital Sky Survey (SDSS) multi-epoch imaging data (Stripe 82), we have searched for the tidal disruption of stars by supermassive black holes in non-active galaxies. Two candidate tidal disruption events (TDEs) are identified.
Östman, Linda, Gezari, Suvi, van Velzen, Sjoert, Sjoert van Velzen, Gelfand, Joseph, Glennys R. Farrar, Dennis Zaritsky, Linda Östman, Zaritsky, Dennis, Suvi Gezari, Nidia Morrell, Joseph Gelfand, Morrell, Nidia, Farrar, Glennys R, Drake, Andrew J, Andrew J. Drake, Mathew Smith, Smith, Mathew, Gezari, S., Farrar, G.R., Ostman, L., Zaritsky, D., Smith, M., Gelfand, J., van Velzen, S., Drake, A.J., Morrell, N.   +26 more
core   +3 more sources

GAMMA-RAY BURST FLARES: ULTRAVIOLET/OPTICAL FLARING. I.

, 2013
We present a previously unused method for the detection of flares in gamma-ray burst (GRB) light curves and use this method to detect flares in the ultraviolet/optical.
Swenson, C. A., Oates, S. R., DE PASQUALE, Massımılıano, Roming, P. W. A., De Pasquale, M.   +4 more
core   +1 more source

A Possible Mechanism for the “Late Phase” in Stellar White-light Flares

The Astrophysical Journal, 2023
M dwarf flares observed by the Transiting Exoplanet Survey Satellite (TESS) sometimes exhibit a peak-bump light-curve morphology, characterized by a secondary, gradual peak well after the main, impulsive peak.
Kai E. Yang, Xudong Sun, Graham S. Kerr, Hugh S. Hudson   +3 more
doaj   +1 more source

Pre-emptive infrared countermeasures [PDF]

, 2012
The aim of this PhD is to investigate pre-emptive flare release compared to reactive flare release and their efficacy as a countermeasure device in the protection of fast jet and transport aircraft against the MANPAD threat.
Jackman, J.
core   +3 more sources

Shock cooling and breakout emission for optical flares associated with gravitational wave events [PDF]

, 2023
The astrophysical origin of stellar-mass black hole (BH) mergers discovered through gravitational waves (GWs) is widely debated. Mergers in the disks of active galactic nuclei (AGN) represent promising environments for at least a fraction of these events,
Kimura, Shigeo S., Perna, Rosalba, Haiman, Zoltán, Bartos, Imre, Tagawa, Hiromichi   +4 more
core  

Development of a Disease Activity Index for the Assessment of VEXAS Syndrome (VEXAS‐DAI)

Arthritis Care &Research, EarlyView.
Objective Vacuoles, E1 enzyme, X‐linked, autoinflammatory, somatic syndrome (VEXAS) syndrome is characterized by a complex spectrum of inflammatory and hematologic manifestations. Clinical research to identify effective therapies is urgently needed but is hindered by the lack of validated outcome measures.
Kevin Byram, Heřman Mann, Danielle Hammond, Onima Chowdhury, Sinisa Savic, Yohei Kirino, Carmelo Gurnari, Maël Heiblig, Thibault Comont, Arsène Mekinian, Mrinal M. Patnaik, Lachelle D. Weeks, Gary Ho, Adam Al‐Hakim, Scott Goldberg, Marcela A. Ferrada, Sophie Georgin‐Lavialle, Peter C. Grayson, Emma M. Groarke, Bhavisha Patel, Megan Sullivan, Sarah A. Buckley, Bryan G. Harder, Raman Garcha, David B. Beck, Matthew J. Koster   +25 more
wiley   +1 more source

Radio and Optical Flares on the dMe Flare Star EV Lac

The Astrophysical Journal
We present the results of a coordinated campaign to observe radio and optical stellar flares from the nearby M dwarf flare star EV Lac. From a total of 27 hr of radio and 29 hr of optical observations, we examine the correspondence of the action of ...
Rachel A. Osten, Adam F. Kowalski, Suzanne Hawley, Isaiah I. Tristan, Sarah J. Schmidt, Ben Tofflemire, Eric Hilton   +6 more
doaj   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source