Results 11 to 20 of about 927 (113)
Advances in Astronomy, 2015 In recent years free-floating planets (FFPs) have drawn a great interest among astrophysicists. Gravitational microlensing is a unique and exclusive method for their investigation which may allow obtaining precious information about their mass and ...
Lindita Hamolli +3 more
doaj +2 more sources
Analytical Methods in Gravitational Microlensing [PDF]
International Scholarly Research Notices, Volume 2012, Issue 1, 2012., 2012 We discuss analytical results dealing with photometric and astrometric gravitational microlensing. The first two sections concern approximation methods that allow us to get solutions of the general lens equation near fold caustics and cusp points up to any prescribed accuracy.
В. И. Жданов +3 more
openalex +2 more sources
Magnetic Manipulation of Superparamagnetic Colloids in Droplet‐Based Optical Devices
Advanced Optical Materials, Volume 11, Issue 21, November 6, 2023., 2023 Colloidal particles inside droplets are assembled and manipulated using an external magnetic field to create magnetically controlled active microlenses and optical shutters. Using monodisperse microfluidic droplets, the assembly of particles into 2D clusters is systematically investigated and exploited to manipulate light.
Iacopo Mattich +7 more
wiley +1 more source
Ultra wide‐field infrared astronomy in Antarctica
Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023 The science enabled by the deep and high‐cadence survey that will be performed by the Vera Rubin Observatory has led to an increase of survey and follow‐up capabilities around the world. The infrared, has however, not match this growth due to the challenges caused by the atmospheric and the cost of large detector arrays.
Tony Travouillon +6 more
wiley +1 more source
Characteristic Features of Gravitational Wave Lensing as Probe of Lens Mass Model
Annalen der Physik, Volume 535, Issue 6, June 2023., 2023 The gravitational lensing of gravitational waves is an expanding field in astronomy and cosmology. It might contribute to solving many different issue in these fields. To exploit its potential, first of all, one needs to recognize and model a gravitational wave event properly.
Paolo Cremonese +2 more
wiley +1 more source
The road toward imaging a black hole: A personal perspective
Natural Sciences, Volume 2, Issue 4, October 2022., 2022 The article describes the authors personal journey towards developig the Event Horizon Telescope and the first image of a black hole. Left: predcition made by the author and collaborators proposing the black hole imaging in 2000. Right: the two images observed and published by the Event Horizon Telescope in 2019 and 2022.
Heino Falcke
wiley +1 more source
Identifying interesting planetary systems for future X‐ray observations
Astronomische Nachrichten, Volume 343, Issue 4, May 2022., 2022 Abstract X‐ray observations of star–planet systems are important to grow our understanding of exoplanets; these observations allow for studies of photoevaporation of the exoplanetary atmosphere, and in some cases even estimations of the size of the outer planetary atmosphere.
Grace Foster, Katja Poppenhaeger
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Effervescence‐Inspired Self‐Healing Plastrons for Long‐Term Immersion Stability
Advanced Functional Materials, Volume 32, Issue 4, January 19, 2022., 2022 Underwater performance of superhydrophobic/superamphiphobic surfaces relies on the robustness and durability of the gas‐layer (plastron). A simple and scalable technique of effervescence‐inspired on‐demand plastron repair is presented. Surfaces do not suffer from any performance‐losses even after 2 months of continuous immersion.
William S. Y. Wong, Doris Vollmer
wiley +1 more source
The Fundamental Connections between the Solar System and Exoplanetary Science
Journal of Geophysical Research: Planets, Volume 126, Issue 2, February 2021., 2021 Abstract Over the past several decades, thousands of planets have been discovered outside our Solar System. These planets exhibit enormous diversity, and their large numbers provide a statistical opportunity to place our Solar System within the broader context of planetary structure, atmospheres, architectures, formation, and evolution.
Stephen R. Kane +9 more
wiley +1 more source
A Relativistic Compact Stellar Model of Anisotropic Quark Matter Mixed with Dark Energy
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 The possibility of strange stars mixed with dark energy to be one of the candidates for dark energy stars is the main issue of the present study. Our investigation shows that quark matter atcs as dark energy after a certain yet unknown critical condition inside the quark stars.
Theophanes Grammenos +5 more
wiley +1 more source