TY  - JOUR
A1  - Teriaca, Luca
A1  - Andretta, Vincenzo
A1  - Auchere, Frederic
A1  - Brown, Charles M.
A1  - Buchlin, Eric
A1  - Cauzzi, Gianna
A1  - Culhane, J. Len
A1  - Curdt, Werner
A1  - Davila, Joseph M.
A1  - Del Zanna, Giulio
A1  - Doschek, George A.
A1  - Fineschi, Silvano
A1  - Fludra, Andrzej
A1  - Gallagher, Peter T.
A1  - Green, Lucie
A1  - Harra, Louise K.
A1  - Imada, Shinsuke
A1  - Innes, Davina
A1  - Kliem, Bernhard
A1  - Korendyke, Clarence
A1  - Mariska, John T.
A1  - Martinez-Pillet, Valentin
A1  - Parenti, Susanna
A1  - Patsourakos, Spiros
A1  - Peter, Hardi
A1  - Poletto, Luca
A1  - Rutten, Robert J.
A1  - Schuehle, Udo
A1  - Siemer, Martin
A1  - Shimizu, Toshifumi
A1  - Socas-Navarro, Hector
A1  - Solanki, Sami K.
A1  - Spadaro, Daniele
A1  - Trujillo-Bueno, Javier
A1  - Tsuneta, Saku
A1  - Dominguez, Santiago Vargas
A1  - Vial, Jean-Claude
A1  - Walsh, Robert
A1  - Warren, Harry P.
A1  - Wiegelmann, Thomas
A1  - Winter, Berend
A1  - Young, Peter
T1  - LEMUR large european module for solar ultraviolet research
JF  - Experimental astronomy : an international journal on astronomical instrumentation and data analysis
N2  - The solar outer atmosphere is an extremely dynamic environment characterized by the continuous interplay between the plasma and the magnetic field that generates and permeates it. Such interactions play a fundamental role in hugely diverse astrophysical systems, but occur at scales that cannot be studied outside the solar system. Understanding this complex system requires concerted, simultaneous solar observations from the visible to the vacuum ultraviolet (VUV) and soft X-rays, at high spatial resolution (between 0.1'' and 0.3''), at high temporal resolution (on the order of 10 s, i.e., the time scale of chromospheric dynamics), with a wide temperature coverage (0.01 MK to 20 MK, from the chromosphere to the flaring corona), and the capability of measuring magnetic fields through spectropolarimetry at visible and near-infrared wavelengths. Simultaneous spectroscopic measurements sampling the entire temperature range are particularly important. These requirements are fulfilled by the Japanese Solar-C mission (Plan B), composed of a spacecraft in a geosynchronous orbit with a payload providing a significant improvement of imaging and spectropolarimetric capabilities in the UV, visible, and near-infrared with respect to what is available today and foreseen in the near future. The Large European Module for solar Ultraviolet Research (LEMUR), described in this paper, is a large VUV telescope feeding a scientific payload of high-resolution imaging spectrographs and cameras. LEMUR consists of two major components: a VUV solar telescope with a 30 cm diameter mirror and a focal length of 3.6 m, and a focal-plane package composed of VUV spectrometers covering six carefully chosen wavelength ranges between 170 and 1270 . The LEMUR slit covers 280'' on the Sun with 0.14'' per pixel sampling. In addition, LEMUR is capable of measuring mass flows velocities (line shifts) down to 2 km s (-aEuro parts per thousand 1) or better. LEMUR has been proposed to ESA as the European contribution to the Solar C mission.
KW  - Sun: atmosphere
KW  - Space vehicles: instruments
KW  - Techniques: spectroscopy
KW  - ESA cosmic vision
Y1  - 2012
U6  - https://doi.org/10.1007/s10686-011-9274-x
SN  - 0922-6435
VL  - 34
IS  - 2
SP  - 273
EP  - 309
PB  - Springer
CY  - Dordrecht
ER  -