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Related papers: MOSiC: an analysis tool for IRIS spectral data

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The imager IBIS on board INTEGRAL is composed of two detector planes: ISGRI (15 keV - 1 MeV) and PICsIT (170 keV - 10 MeV). Here we describe the data structure of PICsIT and the instrument specific software, including the standard…

We have analyzed IRIS spectral and slit-jaw observations of a quiet region near the South Pole. In this article we present an overview of the observations, the corrections, and the absolute calibration of the intensity. We focus on the…

Solar and Stellar Astrophysics · Physics 2018-01-09 C. E. Alissandrakis , J. -C. Vial , A. Koukras , E. Buchlin , M. Chane-Yook

PICsIT (Pixellated Imaging CaeSium Iodide Telescope) is the high energy detector of the IBIS telescope on-board the INTEGRAL satellite. PICsIT operates in the gamma-ray energy range between 175 keV and 10 MeV, with a typical energy…

Functional properties of mixed ionic electronic conductors (MIECs) can be radically modified by (de)insertion of mobile charged defects. A complete control of this dynamic behaviour has multiple applications in a myriad of fields including…

The Mg ii h&k lines are key diagnostics of the solar chromosphere. They are sensitive to the temperature, density, and non-thermal velocities in the chromosphere. The average Mg ii h&k line profiles arising from previous 3D chromospheric…

Solar and Stellar Astrophysics · Physics 2024-11-27 P. Ondratschek , D. Przybylski , H. N. Smitha , R. Cameron , S. K. Solanki , J. Leenaarts

By charting the kinematic, chemical, and ionization conditions of galactic and intergalactic gas over the redshift range 0 - 4 with QSO absorption lines, the evolution of chemical abundances, the UV meta-galactic background, and the…

Astrophysics · Physics 2009-10-30 Christopher W. Churchill

We introduce MOSAIC, a Python program for machine learning models. Our framework is developed with in mind accelerating machine learning studies through making implementing and testing arbitrary network architectures and data sets simpler,…

Machine Learning · Computer Science 2023-01-31 Mattéo Papin , Yann Beaujeault-Taudière , Frédéric Magniette

The Galactic O-Star Spectroscopic Survey (GOSSS) is an ambitious project that is observing all known Galactic O stars with B < 13 in the blue-violet part of the spectrum with R-2500. It is based on version 2 of the most complete catalog to…

Instrumentation and Methods for Astrophysics · Physics 2011-01-19 Alfredo Sota , Jesús Maíz Apellániz

The gamma-ray astronomical observatory INTEGRAL, succesfully launched on 17th October 2002, carries two large gamma-ray telescopes. One of them is the coded-mask imaging gamma-ray telescope onboard the INTEGRAL satellite (IBIS) which…

Astrophysics · Physics 2009-11-10 A. Goldwurm , P. David , L. Foschini , A. Gros , P. Laurent , A. Sauvageon , A. J. Bird , L. Lerusse , N. Produit

The O I 135.56 nm line is covered by NASA's Interface Region Imaging Spectrograph (IRIS) small explorer mission which studies how the solar atmosphere is energized. We here study the formation and diagnostic potential of this line by means…

Solar and Stellar Astrophysics · Physics 2015-11-04 Hsiao-Hsuan Lin , Mats Carlsson

The Mg II h&k lines are powerful diagnostics for studying the solar chromosphere. They have become particularly popular with the launch of the IRIS satellite, and a number of studies that include these lines have lead to great progress in…

Solar and Stellar Astrophysics · Physics 2016-10-21 Jaime de la Cruz Rodríguez , Jorrit Leenaarts , Andrés Asensio Ramos

We describe the InfraRed Data Reduction (IRDR) software package, a small ANSI C library of fast image processing routines for automated pipeline reduction of infrared (dithered) observations. We developed the software to satisfy certain…

Astrophysics · Physics 2007-05-23 Chris N. Sabbey , Richard G. McMahon , James R. Lewis , Mike J. Irwin

We present new VLT/MUSE observations of a 3 $\times$ 8 arcmin$^2$ mosaic along the southern major axis of the Local Group galaxy M33. These data provide an unprecedented view of the galaxy's interstellar medium (ISM) and allow us to resolve…

The C I 135.58 line is located in the wavelength range of NASA's Interface Region Imagin Spectrograph (IRIS) small explorer mission. We here study the formation and diagnostic potential of this line by means of non…

Solar and Stellar Astrophysics · Physics 2017-09-06 Hsiao-Hsuan Lin , Mats Carlsson , Jorrit Leenaarts

A triplet of subordinate lines of Mg II exists in the region around the h&k lines. In solar spectra these lines are seen mostly in absorption, but in some cases can become emission lines. The aim of this work is to study the formation of…

Solar and Stellar Astrophysics · Physics 2015-08-19 Tiago M. D. Pereira , Mats Carlsson , Bart De Pontieu , Viggo Hansteen

We explore the detection, with upcoming spectroscopic surveys, of three-dimensional power spectra of emission line fluctuations produced in different phases of the Interstellar Medium (ISM) by ionized carbon, ionized nitrogen and neutral…

Astrophysics of Galaxies · Physics 2017-03-27 Paolo Serra , Olivier Doré , Guilaine Lagache

ISICS, originally a C language program for calculating K-, L- and M-shell ionization and X-ray production cross sections from ECPSSR and PWBA theory, has been reengineered into a C++ language class, named ISICSoo. The new software design…

Computational Physics · Physics 2015-05-30 Matej Batic , Maria Grazia Pia , Sam J. Cipolla

The Mg II h&k lines are amongst the best diagnostic tools of the upper solar chromosphere. This region of the atmosphere is of particular interest as it is the lowest region of the Sun's atmosphere where the magnetic field is dominant in…

Solar and Stellar Astrophysics · Physics 2023-03-01 Viggo Hansteen , Juan Martinez Sykora , Mats Carlsson , Bart De Pontieu , Milan Gosic , Souvik Bose

The high temporal, spatial and spectral resolution of Interface Region Imaging Spectrograph (IRIS) has provided new insights into the understanding of different small-scale processes occurring at the chromospheric and transition region (TR)…

Solar and Stellar Astrophysics · Physics 2019-05-03 Nancy Narang , Vaibhav Pant , Dipankar Banerjee , Tom Van Doorsselaere

Silicon photonics in the near-Infra-Red, up to 1.6 um, is already one of key technologies in optical data communications, particularly short-range. It is also being prospected for applications in quantum computing, artificial intelligence,…