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Han Zhang, Yadong Wu, Weihan Zhang and Yuling Zhang
The precise ascertainment of stellar ages is pivotal for astrophysical research into stellar characteristics and galactic dynamics. To address the prevalent challenges of suboptimal accuracy in stellar age determination and limited proficiency in apprehe...
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Yusong Wang, Yidi Wang, Wei Zheng, Minzhang Song and Guanghua Li
X-ray pulsar-based navigation (XNAV) is a promising autonomous navigation method, and the pulse phase is the basic measurement of XNAV. However, the current methods for estimating the pulse phase for orbiting spacecraft have a high computational cost. Th...
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Kedong Wang, Zhennan Li and Shaoxiong Zhang
The navigation by the stellar refraction is important for a LEO (Low-Earth-Orbit) satellite, especially in a GNSS (Global Navigation Satellite System)-denied environment, since it is totally autonomous. However, the biggest barrier to the accurate naviga...
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Samuel Teague and Javaan Chahl
Strapdown celestial imaging sensors provide a compact, lightweight alternative to their gimbaled counterparts. Strapdown imaging systems typically require a wider field of view, and consequently longer exposure intervals, leading to significant motion bl...
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H. M. Cegla
Detecting and confirming terrestrial planets is incredibly difficult due to their tiny size and mass relative to Sun-like host stars. However, recent instrumental advancements are making the detection of Earth-like exoplanets technologically feasible. Fo...
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JoAnna Mitchell-Brown
Pág. 43 - 58
In recent years, public-public and public-private partnerships have become a topic of increasing interest in efforts to establish and implement holistic community revitalization initiatives. One example of this effort is Indiana?s Stellar Communities pro...
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Francois P. Retief, Louise C. Cilliers
Pág. 1 - 9
Astrology is a pseudo-science based on the assumption that the well-being of humankind, and its health in particular, is in?uenced in a constant and predictable fashion by the stars and other stellar bodies. Its origins can probably be traced back...
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Francois P. Retief, Louise C. Cilliers
Pág. 1 - 9
Astrology is a pseudo-science based on the assumption that the well-being of humankind, and its health in particular, is in?uenced in a constant and predictable fashion by the stars and other stellar bodies. Its origins can probably be traced back...
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Mohammad Aminuddin Mohd Don Basari
At the end of 2019, all indicators propose that the year 2019 may be described as a cautiously positive period for the retailers. Entering Q4 2019, the Retail Group of Malaysia (RGM) has analyzed that the overall 3.7% retail salesgrowth, representing RM1...
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Ramses M. Ramirez
The habitable zone (HZ) is the circular region around a star(s) where standing bodies of water could exist on the surface of a rocky planet. Space missions employ the HZ to select promising targets for follow-up habitability assessment. The classical HZ ...
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Christopher M. Horvat, Srinivasan Suresh and Robert S. B. Clark
Electronic health records (EHR) combined with robust data collection systems can be used to simultaneously drive research and performance improvement initiatives. Our Smart, Transformative, EHR-based Approaches to Revolutionizing the Intensive Care Unit ...
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Serena Benatti
Exoplanet research has shown an incessant growth since the first claim of a hot giant planet around a solar-like star in the mid-1990s. Today, the new facilities are working to spot the first habitable rocky planets around low-mass stars as a forerunner ...
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Ajithra A K,Shanthi G.
Natural radionuclides of terrestrial origin have very long half ? lives or driven from very long ? lived parent radionuclides, which have been created in stellar processes before the earth formation. The study of natural radioactivity in marine and coast...
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Stuart Reid and Iain W. Martin
The first detections of gravitational waves, GW150914 and GW151226, were associated with the coalescence of stellar mass black holes, heralding the opening of an entirely new way to observe the Universe. Many decades of development were invested to achie...
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Ariadna Calcines Rosario, Frederic Auchère, Alain Jody Corso, Giulio Del Zanna, Jaroslav Dudík, Samuel Gissot, Laura A. Hayes, Graham S. Kerr, Christian Kintziger, Sarah A. Matthews, Sophie Musset, David Orozco Suárez, Vanessa Polito, Hamish A. S. Reid and Daniel F. Ryan
Particle acceleration, and the thermalisation of energetic particles, are fundamental processes across the universe. Whilst the Sun is an excellent object to study this phenomenon, since it is the most energetic particle accelerator in the Solar System, ...
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Sebastián Araya-Pizarro,Nando Verelst
Astrotourism, also known as stellar tourism, involves the development of recreational and educational activities related to the cosmos and astronomical phenomena. This type of special interest tourism focuses on nature, culture, and c...
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Hamish A. S. Reid, Sophie Musset, Daniel F. Ryan, Vincenzo Andretta, Frédéric Auchère, Deborah Baker, Federico Benvenuto, Philippa Browning, Éric Buchlin, Ariadna Calcines Rosario, Steven D. Christe, Alain Jody Corso, Joel Dahlin, Silvia Dalla, Giulio Del Zanna, Carsten Denker, Jaroslav Dudík, Robertus Erdélyi, Ilaria Ermolli, Lyndsay Fletcher, Andrzej Fludra, Lucie M. Green, Mykola Gordovskyy, Salvo L. Guglielmino, Iain Hannah, Richard Harrison, Laura A. Hayes, Andrew R. Inglis, Natasha L. S. Jeffrey, Jana Ka?parová, Graham S. Kerr, Christian Kintziger, Eduard P. Kontar, Säm Krucker, Timo Laitinen, Philippe Laurent, Olivier Limousin, David M. Long, Shane A. Maloney, Paolo Massa, Anna Maria Massone, Sarah Matthews, Tomasz Mrozek, Valery M. Nakariakov, Susanna Parenti, Michele Piana, Vanessa Polito, Melissa Pesce-Rollins, Paolo Romano, Alexis P. Rouillard, Clementina Sasso, Albert Y. Shih, Marek Steslicki, David Orozco Suárez, Luca Teriaca, Meetu Verma, Astrid M. Veronig, Nicole Vilmer, Christian Vocks and Alexander WarmuthaddShow full author listremoveHide full author list
Particle acceleration is a fundamental process arising in many astrophysical objects, including active galactic nuclei, black holes, neutron stars, gamma-ray bursts, accretion disks, solar and stellar coronae, and planetary magnetospheres. Its ubiquity m...
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Leonid Burakovsky and Dean L. Preston
Quantum melting is the phenomenon of cold (zero-temperature) melting of a pressure-ionized substance which represents a lattice of bare ions immersed in the background of free electrons, i.e., the so-called one-component plasma (OCP). It occurs when the ...
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Stefan Hippler, Wolfgang Brandner, Silvia Scheithauer, Martin Kulas, Johana Panduro, Peter Bizenberger, Henry Bonnet, Casey Deen, Françoise Delplancke-Ströbele, Frank Eisenhauer, Gert Finger, Zoltan Hubert, Johann Kolb, Eric Müller, Laurent Pallanca, Julien Woillez, Gérard Zins and GRAVITY Collaboration
This article describes the operation of the near-infrared wavefront sensing based Adaptive Optics (AO) system CIAO. The Coudé Infrared Adaptive Optics (CIAO) system is a central auxiliary component of the Very Large Telescope (VLT) interferometer (VLTI)....
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Vardan Adibekyan
The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars. More than 20 years have already passed from that discovery, however, many questions are still under liv...
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