Coronal Imaging with the Solar UltraViolet Imager

Tadikonda, Sivakumar S. K.; Freesland, Douglas; Minor, Robin R.; Seaton, D. B.; Comeyne, Gustave J.; Krimchansky, Alexander

doi:10.1007/s11207-019-1411-0

Cited by 16 publications

(18 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Images obtained by Solar Dynamics Observatory's (SDO) Atmospheric Imaging Assembly (AIA) are combined by Qi et al (2019) with observations taken by the Interface Region Imaging Spectrograph (IRIS) and with magnetograms taken by SDO's Helioseismic and Magnetic Imager (HMI) to investigate the photospheric magnetic features in the regions of coronal plumes. Tadikonda et al (2019) confirm that EUV emission is present beyond three solar radii using coronal imaging of the Solar UltraViolet Imager (SUVI) on board the Geostationary Operational Environmental Satellite-R series spacecraft. Ho, Mason, and Allen (2019) examine several 3 He-rich events and discuss the lack of observable 4 He intensity increases and the implications for the enhancement and acceleration mechanism of this special type of SEP events.…”

Section: Topical Collection: Solar Wind At the Dawn Of The Parker Solmentioning

confidence: 70%

Editorial: Solar Wind at the Dawn of the Parker Solar Probe and Solar Orbiter Era

2020

View full text Add to dashboard Cite

show abstract

Section: Topical Collection: Solar Wind At the Dawn Of The Parker Solmentioning

confidence: 70%

Editorial: Solar Wind at the Dawn of the Parker Solar Probe and Solar Orbiter Era

2020

View full text Add to dashboard Cite

show abstract

“…The strong off-limb signal observed in the 19.5 pass-band was another contributing factor for its selection, which is observed to diminish relatively slowly (Tadikonda et al, 2019). Off-limb EUV observations have become of increasing interest in recent years, where EUV imagers have been used to track structures in the off-limb lower and middle corona: the SWAP instrument on PROBA2 boasts one of the largest FOVs of any EUV imager currently monitoring the Sun, with a 54 Â 54 arcmin FOV.…”

Section: Pass-band Selectionmentioning

confidence: 99%

“…A nominal image will be 2300 Â 1600 pixels, with a plate-scale of 1.6 arcsec per pixel, producing a novel wide-FOV image of 61.3 Â 42.7 arcmin. Figure 10 shows a SUVI mosaic image, comprised of seven background subtracted images, taken through a pass-band centred on 19.5 on 2018-Feb-12 at around 04:00 UT (see Tadikonda et al, 2019 for further details). The image has been scaled and trimmed to represent the full FOV of the LUCI detector.…”

Section: Luci Expected Outputmentioning

confidence: 99%

LUCI onboard Lagrange, the next generation of EUV space weather monitoring

West

Kintziger

Haberreiter

et al. 2020

J. Space Weather Space Clim.

View full text Add to dashboard Cite

LUCI (Lagrange eUv Coronal Imager) is a solar imager in the Extreme UltraViolet (EUV) that is being developed as part of the Lagrange mission, a mission designed to be positioned at the L5 Lagrangian point to monitor space weather from its source on the Sun, through the heliosphere, to the Earth. LUCI will use an off-axis two mirror design equipped with an EUV enhanced active pixel sensor. This type of detector has advantages that promise to be very beneficial for monitoring the source of space weather in the EUV. LUCI will also have a novel off-axis 'wide' field-of-view, designed to observe the solar disk, the lower corona, and the extended solar atmosphere close to the the Sun-Earth line. LUCI will provide solar coronal images at a 2-3 minute cadence in a pass-band centred on \SI{19.5} {\nano\meter}. Observations made through this pass-band allow for the detection and monitoring of semi-static coronal structures such as coronal holes, prominences, and active regions; as well as transient phenomena such as solar flares, limb Coronal Mass Ejections (CMEs), EUV waves, and coronal dimmings. The LUCI data will complement EUV solar observations provided by instruments located along the Sun-Earth line such as PROBA2-SWAP, SUVI-GOES and SDO-AIA, as well as provide unique observations to improve space weather forecasts. Together with a suite of other remote-sensing and in-situ instruments onboard Lagrange, LUCI will provide science quality operational observations for space weather monitoring.

show abstract

“…4. Mosaics created by a series of off-pointings by the GOES/SUVI instrument, demonstrating EUV structures up to several solar radii (adapted from Tadikonda et al 2019). The FOV shown in this figure corresponds to the FSI FOV at perihelion.…”

Section: The Transition From Corona To the Heliospherementioning

confidence: 99%

The Solar Orbiter EUI instrument: The Extreme Ultraviolet Imager

Rochus

Auchère

Berghmans

et al. 2020

A&A

267

100

View full text Add to dashboard Cite

Context. The Extreme Ultraviolet Imager (EUI) is part of the remote sensing instrument package of the ESA/NASA Solar Orbiter mission that will explore the inner heliosphere and observe the Sun from vantage points close to the Sun and out of the ecliptic. Solar Orbiter will advance the “connection science” between solar activity and the heliosphere. Aims. With EUI we aim to improve our understanding of the structure and dynamics of the solar atmosphere, globally as well as at high resolution, and from high solar latitude perspectives. Methods. The EUI consists of three telescopes, the Full Sun Imager and two High Resolution Imagers, which are optimised to image in Lyman-α and EUV (17.4 nm, 30.4 nm) to provide a coverage from chromosphere up to corona. The EUI is designed to cope with the strong constraints imposed by the Solar Orbiter mission characteristics. Limited telemetry availability is compensated by state-of-the-art image compression, onboard image processing, and event selection. The imposed power limitations and potentially harsh radiation environment necessitate the use of novel CMOS sensors. As the unobstructed field of view of the telescopes needs to protrude through the spacecraft’s heat shield, the apertures have been kept as small as possible, without compromising optical performance. This led to a systematic effort to optimise the throughput of every optical element and the reduction of noise levels in the sensor. Results. In this paper we review the design of the two elements of the EUI instrument: the Optical Bench System and the Common Electronic Box. Particular attention is also given to the onboard software, the intended operations, the ground software, and the foreseen data products. Conclusions. The EUI will bring unique science opportunities thanks to its specific design, its viewpoint, and to the planned synergies with the other Solar Orbiter instruments. In particular, we highlight science opportunities brought by the out-of-ecliptic vantage point of the solar poles, the high-resolution imaging of the high chromosphere and corona, and the connection to the outer corona as observed by coronagraphs.

show abstract

Coronal Imaging with the Solar UltraViolet Imager

Cited by 16 publications

References 18 publications

Editorial: Solar Wind at the Dawn of the Parker Solar Probe and Solar Orbiter Era

Editorial: Solar Wind at the Dawn of the Parker Solar Probe and Solar Orbiter Era

LUCI onboard Lagrange, the next generation of EUV space weather monitoring

The Solar Orbiter EUI instrument: The Extreme Ultraviolet Imager

Contact Info

Product

Resources

About