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The Mg II h&k lines are the prime chromospheric diagnostics of NASA's Interface Region Imaging Spectrograph (IRIS). In the previous papers of this series we used a realistic three-dimensional radiative magnetohydrodynamics model to…

Solar and Stellar Astrophysics · Physics 2013-11-21 Tiago M. D. Pereira , Jorrit Leenaarts , Bart De Pontieu , Mats Carlsson , Han Uitenbroek

Solar light gets scattered at cloud top level in Venus' atmosphere, in the visible range, which corresponds to the altitude of 67 km. We present Doppler velocity measurements performed with the high resolution spectrometer MTR of the Solar…

Earth and Planetary Astrophysics · Physics 2010-11-12 P. Gaulme , F. -X Schmider , C. Grec , A. Lopez Ariste , T. Widemann , B. Gelly

Before using 3D MHD simulations of the solar photosphere in the determination of elemental abundances, one has to ensure that the correct amount of magnetic flux is present in the simulations. The presence of magnetic flux modifies the…

Solar and Stellar Astrophysics · Physics 2017-06-28 C. Beck , D. Fabbian , R. Rezaei , K. G. Puschmann

The Stellar Imager (SI) is a UV-Optical, Space-Based Interferometer designed to enable 0.1 milli-arcsecond (mas) spectral imaging of stellar surfaces and of the Universe in general and asteroseismic imaging of stellar interiors. SI is…

We provide the first method allowing to retrieve spaceborne SIF maps at 30 m ground resolution with a strong correlation ($r^2=0.6$) to high-quality airborne estimates of sun-induced fluorescence (SIF). SIF estimates can provide explanatory…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Jim Buffat , Miguel Pato , Kevin Alonso , Stefan Auer , Emiliano Carmona , Stefan Maier , Rupert Müller , Patrick Rademske , Uwe Rascher , Hanno Scharr

Space missions require lightweight, low-power consuming, radiation-tolerant components. Silicon photomultipliers are increasingly used for detecting near-UV, optical, and infrared light in space due to their compact design, low cost, low…

The local interstellar spectra (LIS) for cosmic rays at energies below about 30 GeV/nuc are increasingly obscured from view at Earth by solar modulation, the lower the energy. These charged particles encounter significant changes in the…

Solar and Stellar Astrophysics · Physics 2015-06-25 Marius S. Potgieter

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…

Instrumentation and Methods for Astrophysics · Physics 2021-01-01 Guido Agapito , Daniele Vassallo , Cedric Plantet , Valentina Viotto , Enrico Pinna , Benoit Neichel , Thierry Fusco , Francois Rigaut

We have analyzed the complete Visual and Infrared Mapping Spectrometer (VIMS) data archive of Titan. Our objective is to build global surface cartographic products, by combining all the data gathered during the 127 targeted flybys of Titan…

Stokes inversion codes are crucial in returning properties of the solar atmosphere, such as temperature and magnetic field strength. However, the success of such algorithms to return reliable values can be hindered by the presence of…

Solar and Stellar Astrophysics · Physics 2021-01-20 P. H. Keys , O. Steiner , G. Vigeesh

The current work investigates the Venusian solar-wind-induced magnetosphere at a high spatial resolution using all Venus Express (VEX) magnetic observations through an unbiased statistical method. We first evaluate the predictability of the…

Space Physics · Physics 2021-12-20 Maosheng He , Joachim Vogt , Eduard Dubinin , Tielong Zhang , Zhaojin Rong

This paper describes the VIS Processing Function (VIS PF) of the Euclid ground segment pipeline, which processes and calibrates raw data from the VIS camera. We present the algorithms used in each processing element, along with a…

Instrumentation and Methods for Astrophysics · Physics 2025-12-12 Euclid Collaboration , H. J. McCracken , K. Benson , C. Dolding , T. Flanet , C. Grenet , O. Herent , P. Hudelot , C. Laigle , G. Leroy , P. Liebing , R. Massey , S. Mottet , R. Nakajima , H. N. Nguyen-Kim , J. W. Nightingale , J. Skottfelt , L. C. Smith , F. Soldano , E. Vilenius , M. Wander , M. von Wietersheim-Kramsta , M. Akhlaghi , H. Aussel , S. Awan , R. Azzollini , A. Basset , G. P. Candini , P. Casenove , M. Cropper , H. Hoekstra , H. Israel , A. Khalil , K. Kuijken , Y. Mellier , L. Miller , S. -M. Niemi , M. J. Page , K. Paterson , M. Schirmer , N. A. Walton , A. Zacchei , J. P. L. G. Barrios , T. Erben , R. Hayes , J. A. Kegerreis , D. J. Lagattuta , A. Lançon , N. Aghanim , B. Altieri , A. Amara , S. Andreon , P. N. Appleton , N. Auricchio , C. Baccigalupi , M. Baldi , A. Balestra , S. Bardelli , P. Battaglia , A. N. Belikov , R. Bender , F. Bernardeau , A. Biviano , A. Bonchi , E. Branchini , M. Brescia , J. Brinchmann , S. Camera , G. Cañas-Herrera , V. Capobianco , C. Carbone , J. Carretero , S. Casas , F. J. Castander , M. Castellano , G. Castignani , S. Cavuoti , K. C. Chambers , A. Cimatti , C. Colodro-Conde , G. Congedo , C. J. Conselice , L. Conversi , Y. Copin , F. Courbin , H. M. Courtois , A. Da Silva , R. da Silva , H. Degaudenzi , G. De Lucia , A. M. Di Giorgio , J. Dinis , H. Dole , F. Dubath , X. Dupac , S. Dusini , A. Ealet , S. Escoffier , M. Fabricius , M. Farina , R. Farinelli , S. Ferriol , F. Finelli , P. Fosalba , S. Fotopoulou , N. Fourmanoit , M. Frailis , E. Franceschi , S. Galeotta , K. George , W. Gillard , B. Gillis , C. Giocoli , P. Gómez-Alvarez , J. Gracia-Carpio , B. R. Granett , A. Grazian , F. Grupp , L. Guzzo , M. Hailey , S. V. H. Haugan , J. Hoar , W. Holmes , F. Hormuth , A. Hornstrup , K. Jahnke , M. Jhabvala , B. Joachimi , E. Keihänen , S. Kermiche , A. Kiessling , M. Kilbinger , B. Kubik , M. Kümmel , M. Kunz , H. Kurki-Suonio , Q. Le Boulc'h , A. M. C. Le Brun , D. Le Mignant , S. Ligori , P. B. Lilje , V. Lindholm , I. Lloro , G. Mainetti , D. Maino , E. Maiorano , O. Mansutti , S. Marcin , O. Marggraf , M. Martinelli , N. Martinet , F. Marulli , D. C. Masters , S. Maurogordato , E. Medinaceli , S. Mei , M. Melchior , M. Meneghetti , E. Merlin , G. Meylan , A. Mora , M. Moresco , L. Moscardini , C. Neissner , R. C. Nichol , C. Padilla , S. Paltani , F. Pasian , K. Pedersen , W. J. Percival , V. Pettorino , S. Pires , G. Polenta , M. Poncet , L. A. Popa , L. Pozzetti , G. D. Racca , F. Raison , R. Rebolo , A. Renzi , J. Rhodes , G. Riccio , E. Romelli , M. Roncarelli , E. Rossetti , B. Rusholme , R. Saglia , Z. Sakr , A. G. Sánchez , D. Sapone , B. Sartoris , J. A. Schewtschenko , P. Schneider , T. Schrabback , A. Secroun , G. Seidel , M. Seiffert , S. Serrano , P. Simon , C. Sirignano , G. Sirri , A. Spurio Mancini , L. Stanco , J. Steinwagner , P. Tallada-Crespí , D. Tavagnacco , A. N. Taylor , H. I. Teplitz , I. Tereno , N. Tessore , S. Toft , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , E. A. Valentijn , L. Valenziano , J. Valiviita , T. Vassallo , G. Verdoes Kleijn , A. Veropalumbo , Y. Wang , J. Weller , G. Zamorani , F. M. Zerbi , I. A. Zinchenko , E. Zucca , V. Allevato , M. Ballardini , M. Bolzonella , E. Bozzo , C. Burigana , R. Cabanac , M. Calabrese , A. Cappi , D. Di Ferdinando , J. A. Escartin Vigo , G. Fabbian , L. Gabarra , M. Huertas-Company , J. Martín-Fleitas , S. Matthew , N. Mauri , R. B. Metcalf , A. Pezzotta , M. Pöntinen , C. Porciani , I. Risso , V. Scottez , M. Sereno , M. Tenti , M. Viel , M. Wiesmann , Y. Akrami , I. T. Andika , S. Anselmi , M. Archidiacono , F. Atrio-Barandela , C. Benoist , P. Bergamini , D. Bertacca , M. Bethermin , L. Bisigello , A. Blanchard , L. Blot , S. Borgani , A. S. Borlaff , M. L. Brown , S. Bruton , A. Calabro , B. Camacho Quevedo , F. Caro , C. S. Carvalho , T. Castro , F. Cogato , S. Conseil , A. R. Cooray , O. Cucciati , S. Davini , F. De Paolis , G. Desprez , A. Díaz-Sánchez , J. J. Diaz , S. Di Domizio , J. M. Diego , P. -A. Duc , A. Enia , Y. Fang , A. M. N. Ferguson , A. G. Ferrari , A. Finoguenov , A. Fontana , A. Franco , K. Ganga , J. García-Bellido , T. Gasparetto , V. Gautard , E. Gaztanaga , F. Giacomini , F. Gianotti , A. H. Gonzalez , G. Gozaliasl , A. Gregorio , M. Guidi , C. M. Gutierrez , A. Hall , W. G. Hartley , C. Hernández-Monteagudo , H. Hildebrandt , J. Hjorth , J. J. E. Kajava , Y. Kang , V. Kansal , D. Karagiannis , K. Kiiveri , C. C. Kirkpatrick , S. Kruk , J. Le Graet , L. Legrand , M. Lembo , F. Lepori , G. F. Lesci , J. Lesgourgues , L. Leuzzi , T. I. Liaudat , S. J. Liu , A. Loureiro , J. Macias-Perez , G. Maggio , M. Magliocchetti , F. Mannucci , R. Maoli , C. J. A. P. Martins , L. Maurin , C. J. R. McPartland , M. Miluzio , P. Monaco , A. Montoro , C. Moretti , G. Morgante , C. Murray , S. Nadathur , K. Naidoo , A. Navarro-Alsina , S. Nesseris , F. Passalacqua , L. Patrizii , A. Pisani , D. Potter , S. Quai , M. Radovich , P. Reimberg , P. -F. Rocci , G. Rodighiero , R. P. Rollins , S. Sacquegna , M. Sahlén , D. B. Sanders , E. Sarpa , C. Scarlata , A. Schneider , M. Schultheis , D. Sciotti , E. Sellentin , F. Shankar , A. Silvestri , K. Tanidis , C. Tao , G. Testera , M. Tewes , R. Teyssier , S. Tosi , A. Troja , M. Tucci , C. Valieri , A. Venhola , D. Vergani , G. Verza , P. Vielzeuf , J. R. Weaver , D. Scott

Soiling impacts the photovoltaic (PV) module performance by reducing the amount of light reaching the photovoltaic cells and by changing their external spectral response. Currently, the soiling monitoring market is moving toward optical…

We have assessed how well stellar parameters (T_eff, logg and [Fe/H]) can be retrieved from low-resolution dispersed images to be obtained by the DIVA satellite. Although DIVA is primarily an all-sky astrometric mission, it will also obtain…

Astrophysics · Physics 2008-11-26 P. G. Willemsen , C. A. L. Bailer-Jones , T. A. Kaempf , K. S. deBoer

Physical parameters of galaxies (as luminosity, stellar mass, age) are often derived by means of the model templates which best fit their spectro-photometric data. We have performed a quantitative test aimed at exploring the ability of this…

Astrophysics · Physics 2010-11-11 Marcella Longhetti , Paolo Saracco , Arturo Mignano

We investigated the applicability of the weak-field approximation (WFA) for retrieving the depth-dependent line-of-sight (LOS) magnetic field from the spectral region containing the Mg I $b_2$ spectral line and two photospheric Ti I and Fe…

Solar and Stellar Astrophysics · Physics 2022-08-31 Dušan Vukadinović , Ivan Milić , Olga Atanacković

The visual STELLA echelle spectrograph (SES-VIS) is a new instrument for the STELLA-II telescope at the Iza\~na observatory on Tenerife. Together with the original SES spectrograph - which will still be used in the near IR - and a new…

Instrumentation and Methods for Astrophysics · Physics 2020-12-16 Michael Weber , Klaus Strassmeier , Manfred Woche , Ilya Ilyin , Arto Järvinen

Visual challenges in underwater environments significantly hinder the accuracy of vision-based localisation and the high-fidelity dense reconstruction. In this paper, we propose VISO, a robust underwater SLAM system that fuses a stereo…

Robotics · Computer Science 2026-03-09 Shu Pan , Simon Archieri , Ahmet Cinar , Jonatan Scharff Willners , Ignacio Carlucho , Yvan Petillot

The ESO Imaging Survey (EIS) presented in early issues of the Messenger, and with up-to-date information on the ongoing observations available on the Web (http://www.eso.org/eis), is a concerted effort by ESO and the Member State community…

PRISM (Polarized Radiation Imaging and Spectroscopy Mission) was proposed to ESA in May 2013 as a large-class mission for investigating within the framework of the ESA Cosmic Vision program a set of important scientific questions that…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-27 PRISM Collaboration , Philippe André , Carlo Baccigalupi , Anthony Banday , Domingos Barbosa , Belen Barreiro , James Bartlett , Nicola Bartolo , Elia Battistelli , Richard Battye , George Bendo , Alain Benoît , Jean-Philippe Bernard , Marco Bersanelli , Matthieu Béthermin , Pawel Bielewicz , Anna Bonaldi , François Bouchet , François Boulanger , Jan Brand , Martin Bucher , Carlo Burigana , Zhen-Yi Cai , Philippe Camus , Francisco Casas , Viviana Casasola , Guillaume Castex , Anthony Challinor , Jens Chluba , Gayoung Chon , Sergio Colafrancesco , Barbara Comis , Francesco Cuttaia , Giuseppe D'Alessandro , Antonio Da Silva , Richard Davis , Miguel de Avillez , Paolo de Bernardis , Marco de Petris , Adriano de Rosa , Gianfranco de Zotti , Jacques Delabrouille , François-Xavier Désert , Clive Dickinson , Jose Maria Diego , Joanna Dunkley , Torsten Enßlin , Josquin Errard , Edith Falgarone , Pedro Ferreira , Katia Ferrière , Fabio Finelli , Andrew Fletcher , Pablo Fosalba , Gary Fuller , Silvia Galli , Ken Ganga , Juan García-Bellido , Adnan Ghribi , Martin Giard , Yannick Giraud-Héraud , Joaquin Gonzalez-Nuevo , Keith Grainge , Alessandro Gruppuso , Alex Hall , Jean-Christophe Hamilton , Marijke Haverkorn , Carlos Hernandez-Monte\-agudo , Diego Herranz , Mark Jackson , Andrew Jaffe , Rishi Khatri , Martin Kunz , Luca Lamagna , Massimiliano Lattanzi , Paddy Leahy , Julien Lesgourgues , Michele Liguori , Elisabetta Liuzzo , Marcos Lopez-Caniego , Juan Macias-Perez , Bruno Maffei , Davide Maino , Anna Mangilli , Enrique Martinez-Gonzalez , Carlos Martins , Silvia Masi , Marcella Massardi , Sabino Matarrese , Alessandro Melchiorri , Jean-Baptiste Melin , Aniello Mennella , Arturo Mignano , Marc-Antoine Miville-Deschênes , Alessandro Monfardini , Anthony Murphy , Pavel Naselsky , Federico Nati , Paolo Natoli , Mattia Negrello , Fabio Noviello , Créidhe O'Sullivan , Francesco Paci , Luca Pagano , Rosita Paladino , Nathalie Palanque-Delabrouille , Daniela Paoletti , Hiranya Peiris , Francesca Perrotta , Francesco Piacentini , Michel Piat , Lucio Piccirillo , Giampaolo Pisano , Gianluca Polenta , Agnieszka Pollo , Nicolas Ponthieu , Mathieu Remazeilles , Sara Ricciardi , Matthieu Roman , Cyrille Rosset , Jose-Alberto Rubino-Martin , Maria Salatino , Alessandro Schillaci , Paul Shellard , Joseph Silk , Alexei Starobinsky , Radek Stompor , Rashid Sunyaev , Andrea Tartari , Luca Terenzi , Luigi Toffolatti , Maurizio Tomasi , Neil Trappe , Matthieu Tristram , Tiziana Trombetti , Marco Tucci , Rien Van de Weijgaert , Bartjan Van Tent , Licia Verde , Patricio Vielva , Ben Wandelt , Robert Watson , Stafford Withington
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