Results 71 to 80 of about 13,456 (303)

The ANS Collaboration Monitoring Program

Open Astronomy, 2012
ANS Collaboration is a growing Italian network of small and medium size telescopes performing spectroscopy (low and medium resolution single dispersion, and Echelle high resolution modes) and UBV RCIC CCD photometry of symbiotic stars and novae mainly ...
Munari U., Bacci S., Baldinelli L., Castellani F., Cetrulo G., Cherini G., Dallaporta S., Dallavia G., Englaro A., Frigo A., Graziani M., Luppi V., Maitan A., Marangoni C., Milani A., Moretti S., Moschini F., Ochner P., Siviero A., Righetti G. L., Tomaselli S., Tomasoni S., Vagnozzi A., Valisa P.   +23 more
doaj   +1 more source

Dwarf novae [PDF]

, 1993
Dwarf novae are defined on grounds of their semi-regular brightness variations of some two to five magnitudes on time scales of typically 10 to 100 days. Historically several different classification schemes have been used. Today, dwarf novae are divided
Ladous, Constanze
core  

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Direct reactions for astrophysical p-capture rates with ORRUBA and GODDESS

Frontiers in Physics
Understanding the nucleosynthesis and energy generation in quiescent and explosive stellar burning requires a detailed understanding of reaction rates on many unstable nuclides.
S. D. Pain
doaj   +1 more source

High Energy Emission of Symbiotic Recurrent Novae: RS Oph and V407 Cyg

Open Astronomy, 2012
Recurrent novae occurring in symbiotic binaries are candidate sources of high energy photons, reaching GeV energies. Such emission is a consequence of particle acceleration leading to pion production.
Hernanz M., Tatischeff V.
doaj   +1 more source

Analysis of Novae X-ray spectra in outburst and quiescence [PDF]

openQuesta tesi si concentra sullo studio di due sistemi di nova, uno in una fase tardiva dell'outburst e l'altro che ritorna in quiescenza pochi anni dopo l'outburst.
CANTON, VALENTINA
core  

Innate Immunocompetent hiPSC‐Derived Neurospheroids Capture Early CNS Responses to rAAV

Advanced Science, EarlyView.
Knowledge of human CNS immune responses to AAV‐based gene therapies remains limited due to the lack of immune‐competent human models. Here, a hiPSC‐derived 3D neuroimmune platform integrating neurospheroids and microglia is established using stirred‐tank bioreactors.
Catarina M. Gomes, Gabriela Silva, Mafalda Aleixo, Marta Gomes, Daniel Simão, Stephan J. Holtkamp, Diana D. Lobo, Pradeep Harish, Rosalind Jenkins, Lekh N. Dahal, Rui J. Nobre, Luís de Pereira de Almeida, Mark Trautwein, Paula M. Alves, Catarina Brito   +14 more
wiley   +1 more source

Confirmation of SRGt 062340.2-265751 as a nova-like cataclysmic variable with a possible magnetic nature

Astronomy & Astrophysics
SRGt 062340.2-265751, a cataclysmic variable identified by SRG/eROSITA thanks to its significant X-ray variability, remains poorly characterised despite the multi-wavelength follow-up.
Cúneo V. A., Schwope A. D., Kurpas J., Avakyan A., Brink J., Buckley D. A. H., Maitra C., Veresvarska M.   +7 more
doaj   +1 more source

Long-Term Photometry of Very Slow Novae

Open Astronomy, 2003
Long-term photographic, photoelectric and recent CCD photometry of the classical nova V723 Cas and symbiotic novae V1329 Cyg, PU Vul, V1016 Cyg and HM Sge were used to find their orbital periods.
Chochol D., Pribulla T., Parimucha Š., Vaňko M.   +3 more
doaj   +1 more source

Investigation of outburst characteristics in dwarf novae binary star systems

, 2009
Dwarf novae are a type of binary star system that consists of a cool red dwarf, as well as a white dwarf with an accretion disk. Occasionally the disk will get significantly brighter for a few days in an event called an outburst.
Klep, James Stuart.
core