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Diagnostic diagrams of forbidden lines have been a useful tool for observers in astrophysics for many decades now. They are used to obtain information on the basic physical properties of thin gaseous nebulae. Some diagnostic diagrams are in…

Instrumentation and Methods for Astrophysics · Physics 2015-06-18 Bastian Proxauf , Silvia Oettl , Stefan Kimeswenger

A WWW interface for the simulation of spectral energy distributions of optically thin dust configurations with an embedded radiative source is presented. The density distribution, radiative source, and dust parameters can be selected either…

Astrophysics · Physics 2009-11-11 S. Wolf , L. A. Hillenbrand

The techniques and software tools developed for the reduction and analysis of ISO-CAM/PHOT data with the LARI method are presented. The method, designed for the detection of faint sources in ISO raster observations, is based on the…

We present the IACOB grid-based automatic tool for the quantitative spectroscopic analysis of O-stars. The tool consists of an extensive grid of FASTWIND models, and a variety of programs implemented in IDL to handle the observations,…

Solar and Stellar Astrophysics · Physics 2015-06-03 S. Simón-Díaz , N. Castro , A. Herrero , J. Puls , M. Garcia , C. Sabín-Sanjulián

We present ir-measures, a new tool that makes it convenient to calculate a diverse set of evaluation measures used in information retrieval. Rather than implementing its own measure calculations, ir-measures provides a common interface to a…

Information Retrieval · Computer Science 2021-11-29 Sean MacAvaney , Craig Macdonald , Iadh Ounis

IDEAL (Influence Diagram Evaluation and Analysis in Lisp) is a software environment for creation and evaluation of belief networks and influence diagrams. IDEAL is primarily a research tool and provides an implementation of many of the…

Artificial Intelligence · Computer Science 2013-04-05 Sampath Srinivas , John S. Breese

Optical emission line diagnostics, which are a common tool to constrain the properties of the interstellar medium (ISM) of galaxies, become progressively inaccessible at higher redshifts for ground-based facilities. Far-infrared (FIR)…

Astrophysics of Galaxies · Physics 2024-07-17 Alice Schimek , Claudia Cicone , Sijing Shen , Davide Decataldo , Pamela Klaassen , Lucio Mayer

We propose a methodology to perform a self-consistent analysis of the physical properties of the emitting gas of HII galaxies adequate to the data that can be obtained with the XXI century technology. This methodology requires the…

We present the science enabled by cross-correlations of the SKA1-LOW 21-cm EoR surveys with other line mapping programs. In particular, we identify and investigate potential synergies with planned programs, such as the line intensity…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 Tzu-Ching Chang , Yan Gong , Mario Santos , Marta Silva , James Aguirre , Olivier Doré , Jonathan Pritchard

Spectra emitted from ionized nebulae typically contain collisionally excited and recombination lines, which can be used to trace physical conditions and chemical abundances of the interstellar medium in our Galaxy and other galaxies.…

Instrumentation and Methods for Astrophysics · Physics 2024-11-26 A. Danehkar

SpectraPlot is a web-based application for simulating spectra of atomic and molecular gases. At the time this manuscript was written, SpectraPlot consisted of four primary tools for calculating: 1) atomic and molecular absorption spectra,…

The ITER Vertical Neutron Camera (VNC) is a multichannel collimator system designed to measure the neutron emissivity profile and spectra. The energy spectrum measurements of neutrons made by the VNC will contribute to the reconstruction of…

Plasma Physics · Physics 2020-01-29 Timofey Kormilitsyn , Grigory Nemtsev , Roman Rodionov , Yury Kashchuk , Dmitry Portnov

In this paper un-binned statistical tools for analyzing the cosmic ray energy spectrum are developed and illustrated with a simulated data set. The methods are designed to extract accurate and precise model parameter estimators in the…

Astrophysics · Physics 2008-08-21 J. D. Hague , B. R. Becker , M. S. Gold , J. A. J. Matthews

We present Aurora, an open-source package for particle transport, neutrals and radiation modeling in magnetic confinement fusion plasmas. Aurora's modern multi-language interface enables simulations of 1.5D impurity transport within…

A calibration procedure is proposed for the ITER Radial Neutron Camera. No in-vessel calibration using external neutron sources is required: instead, it is proposed to rely on embedded sources, reference ITER pulses and cross-calibration…

Instrumentation and Detectors · Physics 2018-10-22 M. Cecconelloa , R. Miklaszewski , D. Marocco , S. Conroy , F. Moro , B. Esposito , S. Podda , B. Bienkowska , A. Szydlowski

Extreme UltraViolet (EUV) images of the optically-thin solar corona in multiple spectral channels give information on the emission as a function of temperature through differential emission measure (DEM) inversions. The aim of this paper is…

Solar and Stellar Astrophysics · Physics 2019-10-09 Huw Morgan , James Pickering

We present a new-generation tool to model and interpret spectral energy distributions (SEDs) of galaxies, which incorporates in a consistent way the production of radiation and its transfer through the interstellar and intergalactic media.…

Astrophysics of Galaxies · Physics 2016-10-06 Jacopo Chevallard , Stéphane Charlot

We present zELDA(redshift Estimator for Line profiles of Distant Lyman-Alpha emitters), an open source code to fit Lyman-Alpha (Lya) line profiles. The main motivation is to provide the community with an easy to use and fast tool to analyze…

Astrophysics of Galaxies · Physics 2021-12-22 Siddhartha Gurung-Lopez , Max Gronke , Shun Saito , Silvia Bonoli , Alvaro A. Orsi

The JWST and ALMA have detected emission lines from the ionized interstellar medium (ISM) in some of the first galaxies at $z \gtrsim 6$. These measurements present an opportunity to better understand galaxy assembly histories and may allow…

Accurate visualization of double star astrometric data is essential for effective analysis and interpretation. This article presents a Python toolkit designed for astronomers who need to plot measurements from diverse sources -- historical,…

Instrumentation and Methods for Astrophysics · Physics 2025-02-21 Xinyue Wang