English
Related papers

Related papers: Near-field cosmology with the VLT

200 papers

Interferometry in the optical and near infrared has so far played a marginal role in Extragalactic Astronomy. Active Galactic Nuclei are the brightest and most compact extragalactic sources, nonetheless only a very limited number could be…

Astrophysics · Physics 2009-11-07 Alessandro Marconi , Roberto Maiolino , Romain G. Petrov

A measurement of the redshift drift constitutes a model-independent probe of fundamental cosmology. Several approaches are being considered to make the necessary observations, using (i) the Extremely Large Telescope (ELT), (ii) the Cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-13 Fulvio Melia

LINC-NIRVANA (LN) is a high resolution, near infrared imager that uses a multiple field-of-view, layer-oriented, multi-conjugate AO system, consisting of four multi-pyramid wavefront sensors (two for each arm of the Large Binocular…

We describe a system in use at the Lick Observatory 1-m Nickel telescope for near-simultaneous imaging at optical and near-infrared wavelengths. The combined availability of a CCD and a NICMOS-3 camera makes the system well-suited for…

Astrophysics · Physics 2009-10-30 James R. Graham , Lynne A. Hillenbrand , Anthony A. Misch

Visual-inertial-odometry has attracted extensive attention in the field of autonomous driving and robotics. The size of Field of View (FoV) plays an important role in Visual-Odometry (VO) and Visual-Inertial-Odometry (VIO), as a large FoV…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Ze Wang , Kailun Yang , Hao Shi , Peng Li , Fei Gao , Kaiwei Wang

The major cornerstone of future ground-based astronomy is imaging and spectroscopy at the diffraction limit using adaptive optics. To exploit the potential of current AO systems, we have begun a survey around bright stars to study…

Astrophysics · Physics 2007-05-23 R. I. Davies , M. Lehnert , A. J. Baker , S. Rabien

High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultra-dense matter and to black hole masses and spins. A 10 m^2-class instrument in combination with good…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 M. Feroci , the LOFT Consortium

Classically, optical and near-infrared interferometry have relied on closure phase techniques to produce images. Such techniques allow us to achieve modest dynamic ranges. In order to test the feasibility of next generation optical…

The authors examined the suitability of using a Digital Single Lens Reflex (DSLR) camera for stellar photometry and, in particular, investigated wide field exposures made with minimal equipment for analysis of bright variable stars. A…

Solar and Stellar Astrophysics · Physics 2013-03-28 Brian K. Kloppenborg , Roger Pieri , Heinz-Bernd Eggenstein , Grigoris Maravelias , Tom Pearson

This paper tackles the problem of Cross-view Video-based camera Localization (CVL). The task is to localize a query camera by leveraging information from its past observations, i.e., a continuous sequence of images observed at previous time…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Yujiao Shi , Xin Yu , Shan Wang , Hongdong Li

We discuss how future X-ray instruments which are under development can contribute to our understanding of the non-thermal Universe. Much progress has been made in the field of X-ray Astronomy recently, thanks to the operation of modern…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Tadayuki Takahashi , Yasunobu Uchiyama , Lukasz Stawarz

Advances in portability and low cost of plenoptic cameras have revived interest in light field imaging. Light-field imaging has evolved into a technology that enables us to capture richer visual information. This high-dimensional…

Image and Video Processing · Electrical Eng. & Systems 2025-10-10 Sumit Sharma

Here we report some results from an ESO-VLT programme to observe individual stars in nearby dwarf galaxies at high resolution with the UVES spectrograph (Tolstoy, Venn, Shetrone, Primas, Hill, Kaufer & Szeifert 2002, submitted to AJ). We…

Astrophysics · Physics 2007-05-23 Eline Tolstoy

Selected by NASA for an Astrophysics Science SmallSat study, The Virtual Telescope for X-Ray Observations (VTXO) is a small satellite mission being developed by NASAs Goddard Space Flight Center (GSFC) and New Mexico State University…

Instrumentation and Methods for Astrophysics · Physics 2020-07-21 Kyle Rankin , John Krizmanic , Neerav Shah , Steven Stochaj , Asal Naseri

The NeXT mission has been proposed to study high-energy non-thermal phenomena in the universe. The high-energy response of the super mirror will enable us to perform the first sensitive imaging observations up to 80 keV. The focal plane…

Scattering scanning near-field optical microscopy enables optical imaging and characterization of plasmonic devices with nanometer-scale resolution well below the diffraction limit. This technique enables developers to probe and understand…

An advanced Compton telescope appears to be the best instrument concept for the next generation gamma-ray space observatory in the MeV range. A first prototype of advanced Compton telescope is being developed to match the constraints of a…

Instrumentation and Methods for Astrophysics · Physics 2020-02-27 Adrien Laviron , Valentin Gourlaouen , Clarisse Hamadache , Corentin Hiver , Jürgen Kiener , Jean Peyré , Vincent Tatischeff

(Abridged) We consider the scientific case for a large aperture (10-12m class) optical spectroscopic survey telescope with a field of view comparable to that of LSST. Such a facility could enable transformational progress in several areas…

Instrumentation and Methods for Astrophysics · Physics 2017-01-10 Richard S. Ellis , Joss Bland-Hawthorn , Malcolm Bremer , Jarle Brinchmann , Luigi Guzzo , Johan Richard , Hans-Walter Rix , Eline Tolstoy , Darach Watson

ARIES Baker-Nunn Schmidt telescope project is converting a Baker-Nunn satellite tracking camera for Astronomical research. Original Baker-Nunn camera produces an extremely large (5X30 degree) curved focal plane at the prime focus for…

Instrumentation and Methods for Astrophysics · Physics 2009-05-05 Soumen Mondal , K. G. Gupta , Sneh Lata , Biman J. Medhi , Tarun Bangia , T. S. Kumar , Shobhit Yadav , S. K. Singh

Future X-ray astrophysics missions will survey large areas of the sky with unparalleled sensitivity, enabled by lightweight, high-resolution optics. These optics inherently produce curved focal surfaces with radii as small as 2 m, requiring…

‹ Prev 1 3 4 5 6 7 10 Next ›