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The Visible-light Imager and Magnetograph (VIM) proposed for the ESA Solar Orbiter mission will observe a photospheric spectral line at high spatial resolution. Here we simulate and interpret VIM measurements. Realistic MHD models are used…

We present the software system developed to implement the Locus Algorithm, a novel algorithm designed to maximise the performance of differential photometry systems by optimising the number and quality of reference stars in the Field of…

天体物理仪器与方法 · 物理学 2020-03-12 Kevin Nolan , Eugene Hickey , Oisín Creaner

We demonstrate that artificial bipolar structure can be detected using spectro-astrometry when the point spread function (PSF) of a point source suffers distortion in a relatively wide slit. Spectro-astrometry is a technique which allows us…

天体物理学 · 物理学 2009-11-13 E. Brannigan , M. Takami , A. Chrysostomou , J. Bailey

Historically, long-slit spectroscopic observations were carried out using the parallactic angle for the slit orientation if slit loss was an important consideration (either to maximize the signal-to-noise or to do spectrophotometry). This…

天体物理学 · 物理学 2009-11-11 G. P. Szokoly

We discuss the possible synergies for cosmology between SKAO and ESO facilities, focusing on the combinations SKA-Mid with the Multi-Object Spectrograph Telescope (4MOST) instrument built for ESO's Visible and Infrared Survey Telescope for…

天体物理仪器与方法 · 物理学 2025-03-07 Mario G. Santos , Stefano Camera , Zhaoting Chen , Steven Cunnington , Jose Fonseca

We propose and explore the potential of a method to extract high signal-to-noise (S/N) integrated spectra related to physical and/or morphological regions on a 2-dimensional field using Integral Field Spectroscopy (IFS) observations by…

天体物理仪器与方法 · 物理学 2015-06-03 F. F. Rosales-Ortega , S. Arribas , L. Colina

The Prime Focus Spectrograph (PFS) is a fiber fed multi-object spectrometer for the Subaru Telescope that will conduct a variety of targeted surveys for studies of dark energy, galaxy evolution, and galactic archaeology. The key to the…

We present a new program aimed at developing a new generation of micromirror devices specifically tailored for astronomical applications, multi-slit spectroscopy in particular. We first overview the general characteristics of…

天体物理仪器与方法 · 物理学 2025-06-16 M. Robberto , M. Gennaro , S. Kassin , S. A. Smee , C. Gong , J. Huffman , Z. Ninkov , I. Puchades

Millimeter-wave (mmWave) multiple-input multiple-output (MIMO) system for the fifth generation (5G) cellular communications can also enable single-anchor positioning and object tracking due to its large bandwidth and inherently high angular…

信号处理 · 电气工程与系统科学 2019-10-02 Jiguang He , Henk Wymeersch , Long Kong , Olli Silvén , Markku Juntti

This paper proposes a novel modulation and coding scheme (MCS) selection framework that integrates mutual information (MI) prediction based on vector similarity search (VSS) for massive multi-user multiple-input multiple-output orthogonal…

信号处理 · 电气工程与系统科学 2026-03-30 Fuga Kobayashi , Takumi Takahashi , Shinsuke Ibi , Takanobu Doi , Kazushi Muraoka , Hideki Ochiai

We present a new method for estimating the 6D pose of rigid objects with available 3D models from a single RGB input image. The method is applicable to a broad range of objects, including challenging ones with global or partial symmetries.…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Tomas Hodan , Daniel Barath , Jiri Matas

Interstellar objects (ISOs), astronomical objects not gravitationally bound to the sun, could present valuable opportunities to advance our understanding of the universe's formation and composition. In response to the unpredictable nature…

系统与控制 · 电气工程与系统科学 2024-11-15 Arna Bhardwaj , Shishir Bhatta , Hiroyasu Tsukamoto

Unsupervised Video Object Segmentation (UVOS) aims at discovering objects and tracking them through videos. For accurate UVOS, we observe if one can locate precise segment proposals on key frames, subsequent processes are much simpler.…

计算机视觉与模式识别 · 计算机科学 2023-01-31 Jialin Yuan , Jay Patravali , Hung Nguyen , Chanho Kim , Li Fuxin

Highly multiplexed spectroscopic surveys have changed the astronomy landscape in recent years. However, these surveys are limited to low and medium spectral resolution. High spectral resolution spectroscopy is often photon starved and will…

天体物理仪器与方法 · 物理学 2023-10-25 Manjunath Bestha , Amirul Hasan , Devika Divakar , Arun Surya , S. Sriram , T. Sivarani , Ajin Prakash , Parvathy M , Sudharsan Yadav

One of the problems of producing instruments for Extremely Large Telescopes is that their size (and hence cost) scales rapidly with telescope aperture. To try to break this relation alternative new technologies have been proposed, such as…

天体物理仪器与方法 · 物理学 2015-06-11 Robert James Harris , Jeremy Allington-Smith

We present the first Public Data Release (PDR-1) of the VIMOS Public Extragalactic Survey (VIPERS). It comprises 57 204 spectroscopic measurements together with all additional information necessary for optimal scientific exploitation of the…

The Low Resolution Spectrometer of the MIRI, which forms part of the imager module, will provide R~100 long-slit and slitless spectroscopy from 5 to 12 micron. The design is optimised for observations of compact sources, such as exoplanet…

CorMASS (Cornell Massachusetts Slit Spectrograph) is a compact, low-resolution (R=300), double-pass prism cross-dispersed near-infrared (NIR) spectrograph in operation on the Palomar Observatory 60-inch telescope. Its 2-dimensional spectral…

The MCAO Assisted Visible Imager and Spectrograph (MAVIS) Adaptive Optics Module has very demanding goals to support science in the optical: providing 15% SR in V band on a large FoV of 30arcsec diameter in standard atmospheric conditions…

Our dataset contains spectroscopic observations of 29 globular clusters in the Magellanic Clouds and the Milky Way performed with VLT/X-shooter. Here we present detailed data reduction procedures for the VLT/X-shooter UVB and VIS arm. These…