M. Balaguer Jiménez
A5020648805- Solar and Space Plasma Dynamics
- Stellar, planetary, and galactic studies
- Solar Radiation and Photovoltaics
- Astro and Planetary Science
- Adaptive optics and wavefront sensing
- Geomagnetism and Paleomagnetism Studies
- CCD and CMOS Imaging Sensors
- solar cell performance optimization
- Parallel Computing and Optimization Techniques
- Astronomy and Astrophysical Research
- Calibration and Measurement Techniques
- Geophysics and Gravity Measurements
- Spacecraft Design and Technology
- Rocket and propulsion systems research
- Particle accelerators and beam dynamics
- Atmospheric Ozone and Climate
- Spacecraft and Cryogenic Technologies
- Magnetic confinement fusion research
- Radiation Effects in Electronics
- Semiconductor materials and devices
- Astronomical Observations and Instrumentation
- Electromagnetic Compatibility and Measurements
- Electromagnetic Compatibility and Noise Suppression
- Advancements in Semiconductor Devices and Circuit Design
- Silicon Carbide Semiconductor Technologies
Instituto de Astrofísica de Andalucía
2010-2024
Consejo Superior de Investigaciones Científicas
2023
This paper describes the Polarimetric and Helioseismic Imager on Solar Orbiter mission (SO/PHI), first magnetograph helioseismology instrument to observe Sun from outside Sun-Earth line. It is key meant address top-level science question: How does solar dynamo work drive connections between heliosphere? SO/PHI will also play an important role in answering other questions of Orbiter, as well hosting potential a rich return further science. measures Zeeman effect Doppler shift FeI 617.3nm...
The Imaging Magnetograph eXperiment (IMaX) is a spectropolarimeter built by four institutions in Spain that flew on board the Sunrise balloon-borne telesocope June 2009 for almost six days over Arctic Circle. As polarimeter IMaX uses fast polarization modulation (based use of two liquid crystal retarders), real-time image accumulation, and dual beam polarimetry to reach sensitivities 0.1%. spectrograph, instrument LiNbO3 etalon double pass narrow band pre-filter achieve spectral resolution...
The SUNRISE balloon-borne solar observatory, consisting of a 1~m aperture telescope that provided stabilized image to UV filter imager and an imaging vector polarimeter, carried out its second science flight in June 2013. It observations parts active regions at high spatial resolution, including the first high-resolution images Mg~{\sc ii}~k line. obtained data are very quality, with best reaching diffraction limit 3000~\AA\ after Multi-Frame Blind Deconvolution reconstruction accounting for...
The Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter (SO) spacecraft observed small extreme ultraviolet (EUV) bursts, termed campfires, that have been proposed to be brightenings near apexes of low-lying loops in quiet-Sun atmosphere. underlying magnetic processes driving these campfires are not understood. During cruise phase SO and at a distance 0.523\,AU from Sun, Polarimetric Helioseismic (SO/PHI) region jointly with SO/EUI, offering possibility investigate surface field...
In July 2024, Sunrise completed its third successful science flight. The III observatory had been upgraded significantly after the two previous flights in 2009 and 2013. Three completely new instruments focus on small-scale physical processes their complex interaction from deepest observable layers photosphere up to chromospheric heights. Previously poorly explored spectral regions lines are exploited paint a three-dimensional picture of solar atmosphere with unprecedented completeness level...
The High Resolution Telescope (HRT) of the Polarimetric and Helioseismic Imager on board Solar Orbiter spacecraft (SO/PHI) Magnetic (HMI) Dynamics Observatory (SDO) both infer photospheric magnetic field from polarised light images. SO/PHI is first magnetograph to move out Sun--Earth line will provide unprecedented access Sun's poles. This provides excellent opportunities for new research wherein maps instruments are used simultaneously. We aim compare these two discuss any possible...
Earth-side observations of solar p modes can be used to image and monitor magnetic activity on the Sun's far side. Here we use magnetograms side obtained by Polarimetric Helioseismic Imager (PHI) onboard Solar Orbiter (SO) directly assess -- for first time validity far-side helioseismic holography. We wish co-locate positions active regions in images magnetograms, calibrate measurements terms field strength. identify three 18 November 2020, 3 October 2021, February 2022 displaying a total...
Context. Traditionally, the observation time needed to build synoptic maps of solar magnetic field is bound 27 days a full Carrington rotation due single viewpoint from Earth. Aims. Our aim reduce this 13.5 by combining magnetograms two vantage points, 180° apart in longitude ideal case. Methods. We combined observations taken Polarimetric and Helioseismic Imager (SO/PHI) during superior conjunction Solar Orbiter February 2021 with data Magnetic (SDO/HMI) constructed map line-of-sight CR...
The Sunrise balloon-borne solar observatory carries a 1 m aperture optical telescope and provides us unique platform to conduct continuous seeing-free observations at UV-visible-IR wavelengths from an altitude of higher than 35 km. For the next flight planned for 2022, post-focus instrumentation is upgraded with new spectro- polarimeters near UV (SUSI) near-IR (SCIP), whereas imaging spectro-polarimeter Tunable Magnetograph (TuMag) capable observing multiple spectral lines within visible...
In this work we propose a multiprocessor architecture to reach high performance in floating point operations by using radiation tolerant FPGA devices, and under narrow time power constraints. This is used the PHI instrument that carries out scientific analysis aboard ESA's Solar Orbiter mission. The proposed architecture, SIMD flavor, aimed be an accelerator within Data Processing Unit (it composed main Leon processor two FPGAs) for carrying RTE inversion on board spacecraft relatively slow...
Context. In November 2021, Solar Orbiter started its nominal mission phase. The remote-sensing instruments on board the spacecraft acquired scientific data during three observing windows surrounding perihelion of first orbit this Aims. aim analysis is detection magnetohydrodynamic (MHD) wave modes in an active region by exploiting capabilities spectropolarimetric measurements. Mthods. High Resolution Telescope (HRT) Polarimetric and Helioseismic Imager (SO/PHI) a high-cadence set region....
Designing a new astronomical instrument typically challenges the available cameras on market. In many cases, no camera can fulfill requirements of in terms photon budget, speed, and even interfaces with rest instrument. this situation, only options are to either downgrade performance or design from scratch, provided it is possible identify compliant detector. The latter case SPGCams, developed be used Tunable Magnetograph (TuMag) Sunrise Chromospheric Infrared spectroPolarimeter (SCIP) for...
In order to make accurate inferences about the solar interior using helioseismology, it is essential understand all relevant physical effects on observations. One effect (complex-valued) ratio of horizontal vertical displacement p- and f-modes at height which they are observed. Unfortunately, impossible measure this directly from a single vantage point, has been difficult disentangle observationally other effects. paper we attempt 7.5 hours simultaneous observations Polarimetric Helioseismic...
Context. The brightness of faculae and network depends on the angle at which they are observed magnetic flux density. Close to limb, assessment this relationship has until now been hindered by increasingly lower signal in magnetograms. Aims. This preliminary study aims highlight potential using simultaneous observations from different vantage points better determine properties close limb. Methods. We used data Solar Orbiter/Polarimetric Helioseismic Imager (SO/PHI), Dynamics...
SUNRISE III is the third flight of international stratospheric balloon project Sunrise. The carries a 1-meter aperture Gregorian telescope and provides unique platform to perform seeing-free observations at UV-Visible-IR wavelengths. It designed in framework NASA's long-duration program be launched ESRANGE, Sweden, fly Canada float altitudes 35 – 37 km. For flight, post-focal instrumentation was extensively upgraded enhance spectro-polarimetric capability; SUSI for 309 417 nm, TuMag 525 nm...
In this paper we propose a SIMD multiprocessor architecture to reach high performance in floating point operations by using radiation tolerant FPGA devices, and under narrow time power constraints. This is used an instrument that carries out the scientific analysis aboard ESA's Solar Orbiter mission. Some details for extending other problems are pointed. A study of how induced errors affect each block detailed, two fault mitigation strategies described. One them supplies recovery mechanism...
The Sunrise Chromospheric Infrared spectroPolarimter (SCIP) is an instrument for the third flight of SUNRISE balloon-borne solar observatory planned 2022. To verify high spatial and spectral resolutions required in balloon flight, SCIP optical unit was subjected to a thermal-vacuum test which installed vacuum chamber exposed thermal environment expected flight. We verified heater control performance temperature distribution confirmed by injecting laser white light through window.
The High Resolution Telescope (HRT) of the Polarimetric and Helioseismic Imager (SO/PHI) on-board Solar Orbiter mission (SO) provides near diffraction limited observations solar surface. HRT Refocus Mechanism (HRM) allows for acquiring calibration data in flight which are used post processing on ground to estimate image quality SO/PHI-HRT products its dependence SO-Sun distance. Our aim is characterise wavefront aberrations optical path consequently focal plane telescope. We use taken during...
The ESA/NASA Solar Orbiter space mission has been successfully launched in February 2020. Onboard is the Polarimetric and Helioseismic Imager (SO/PHI), which two telescopes, a High Resolution Telescope (HRT) Full Disc (FDT). instrument designed to infer photospheric magnetic field line-of-sight velocity through differential imaging of polarised light emitted by Sun. It calculates full Stokes vector at 6 wavelength positions Fe I 617.3nm absorption line. Due telemetry constraints, nominally...
EMC requirements for scientific satellites are usually very stringent and much more demanding than terrestrial standards, mainly because ad-hoc instruments developed the mission require quiet electromagnetic environments to perform their science. These will assure compatibility of all on board with platform. The noise generated by DC/DC converter PHI instrument, be flown Solar Orbiter, has been drastically reduced applying several different techniques. One technique change grounding strategy...