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High-Energy Heliophysics with NuSTAR: Extension

English title High-Energy Heliophysics with NuSTAR: Extension
Applicant Krucker Samuel
Number 169046
Funding scheme Project funding (Div. I-III)
Research institution Fachhochschule Nordwestschweiz Hochschule für Technik
Institution of higher education University of Applied Sciences and Arts Northwestern Switzerland (without UTE) - FHNW
Main discipline Astronomy, Astrophysics and Space Sciences
Start/End 01.01.2017 - 31.12.2020
Approved amount 333'144.00
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Keywords (4)

particle acceleration; solar flares; hard X-rays; coronal heating

Lay Summary (German)

Lead
Das NASA Röntgenteleskop NuSTAR, welches eigentlich gebaut wurde um Schwarze Löcher zu beobachten, kann aber auch auf die Sonne ausgerichtet werden. Verglichen mit den bisherigen Beobachtungen, NuSTAR wird Bilder der Sonne im Röntgenlicht mit 200-facher besserer Empfindlichkeit liefern. Dies wird uns erlauben zu untersuchen wie die Sonnenatmosphäre geheizt wird.
Lay summary

Dieses SNF Gesuch unterstützt die Planung und die Datenauswertung von Röntgenbeobachtung unserer Sonne mit dem Nuclear Spectroscopic Telescope ARray (NuSTAR) Satelliten. NuSTAR ist ein NASA Mission welche im Juni 2012 gestartet wurde und ist derzeit mit Abstand das empfindlichste abbildende Röntgenteleskop. Obwohl NuSTAR ursprünglich für astrophysikalische Beobachtung optimiert wurde, kann das Teleskop auch auf unsere Sonne ausgerichtet werden. Unsere Gruppe ‚Angewandter Hochenergie-Heliophysik’ an der Fachhochschule Nordwestschweiz (FHNW) ist Teil des NuSTAR Science Teams und verantwortlich für die Sonnenbeobachtungen. Der Kern dieser Untersuchung besteht darin den Ursprung der Heizung der Sonnenatmosphäre zu untersuchen um zu erklären warum die Atmosphäre mit Temperaturen über einer Million Grad Celsius so viel heisser ist als die Sonnenoberfläche welche 'nur' 6000 Grad heiss ist.

Direct link to Lay Summary Last update: 29.03.2017

Responsible applicant and co-applicants

Employees

Name Institute

Publications

Publication
Hard X-Ray Constraints on Small-scale Coronal Heating Events
Marsh Andrew J., Smith David M., Glesener Lindsay, Klimchuk James A., Bradshaw Stephen J., Vievering Juliana, Hannah Iain G., Christe Steven, Ishikawa Shin-nosuke, Krucker Säm (2018), Hard X-Ray Constraints on Small-scale Coronal Heating Events, in The Astrophysical Journal, 864(1), 5-5.
NuSTAR Detection of X-Ray Heating Events in the Quiet Sun
Kuhar Matej, Krucker Säm, Glesener Lindsay, Hannah Iain G., Grefenstette Brian W., Smith David M., Hudson Hugh S., White Stephen M. (2018), NuSTAR Detection of X-Ray Heating Events in the Quiet Sun, in The Astrophysical Journal, 856(2), L32-L32.
First NuSTAR Limits on Quiet Sun Hard X-Ray Transient Events
Marsh Andrew J., Smith David M., Glesener Lindsay, Hannah Iain G., Grefenstette Brian W., Caspi Amir, Krucker Säm, Hudson Hugh S., Madsen Kristin K., White Stephen M., Kuhar Matej, Wright Paul J., Boggs Steven E., Christensen Finn E., Craig William W., Hailey Charles J., Harrison Fiona A., Stern Daniel, Zhang William W. (2017), First NuSTAR Limits on Quiet Sun Hard X-Ray Transient Events, in The Astrophysical Journal, 849(2), 131-131.
NuSTAR Hard X-Ray Observation of a Sub-A Class Solar Flare
Glesener Lindsay, Krucker Säm, Hannah Iain G., Hudson Hugh, Grefenstette Brian W., White Stephen M., Smith David M., Marsh Andrew J. (2017), NuSTAR Hard X-Ray Observation of a Sub-A Class Solar Flare, in The Astrophysical Journal, 845(2), 122-122.
Microflare Heating of a Solar Active Region Observed with NuSTAR , Hinode /XRT, and SDO /AIA
Wright Paul J., Hannah Iain G., Grefenstette Brian W., Glesener Lindsay, Krucker Säm, Hudson Hugh S., Smith David M., Marsh Andrew J., White Stephen M., Kuhar Matej (2017), Microflare Heating of a Solar Active Region Observed with NuSTAR , Hinode /XRT, and SDO /AIA, in The Astrophysical Journal, 844(2), 132-132.
EVIDENCE OF SIGNIFICANT ENERGY INPUT IN THE LATE PHASE OF A SOLAR FLARE FROM NuSTAR X-RAY OBSERVATIONS
Kuhar Matej, Krucker Säm, Hannah Iain G., Glesener Lindsay, Saint-Hilaire Pascal, Grefenstette Brian W., Hudson Hugh S., White Stephen M., Smith David M., Marsh Andrew J., Wright Paul J., Boggs Steven E., Christensen Finn E., Craig William W., Hailey Charles J., Harrison Fiona A., Stern Daniel, Zhang William W. (2017), EVIDENCE OF SIGNIFICANT ENERGY INPUT IN THE LATE PHASE OF A SOLAR FLARE FROM NuSTAR X-RAY OBSERVATIONS, in The Astrophysical Journal, 835(1), 6-6.

Collaboration

Group / person Country
Types of collaboration
University of Minnesota (Lindsay Glesener) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
University of Glasgow (Iain Hannah) Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
CalTech (Fiona Harrison) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
AFRL & U of Maryland (Stephen White) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Lawrence Livermore National Laboratory (Julia Vogel) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
CalTech (Brian Grefenstette) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
UC Berkeley (Hugh Hudson) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
UC Santa Cruz (David Smith) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
16th Hvar Astrophysical Colloquium/ISEST 2018 workshop Poster NUSTAR DETECTION OF X-RAY HEATING EVENTS IN THE QUIET SUN 22.10.2018 Hvar, Croatia Kuhar Matej;
Seminar at Purple Mountain Observatory Individual talk Hard X-ray Observations as Diagnostics of Particle Acceleration in Solar Flares 11.09.2018 Nanjing, China Krucker Samuel;
17th RHESSI workshop Individual talk NuSTAR detection of heating events in the quiet Sun 21.06.2018 Dublin, Ireland Kuhar Matej; Krucker Samuel;
Seminar at Kyoto University Individual talk Hard X-ray Observations as Diagnostics of Particle Acceleration in Solar Flares 05.06.2018 Kyoto, Japan Krucker Samuel;
Seminar at Nagoya University Individual talk Hard X-ray Observations as Diagnostics of Particle Acceleration in Solar Flares 10.05.2018 Nagoya, Japan Krucker Samuel;
ETH PhD seminar Individual talk NuSTAR detection of X-ray flares in the quiet Sun 08.03.2018 Zurich, Switzerland Kuhar Matej;
L5 consortium meeting Talk given at a conference X-ray imagers suitable for L5 views 17.10.2017 Gottingen, Germany Krucker Samuel;
2nd SCOSTEP workshop Talk given at a conference NuSTAR X-ray observations of heating events in the quiet Sun 10.10.2017 Locarno, Switzerland Kuhar Matej;
16th RHESSI workshop Talk given at a conference NuSTAR X-Ray Brightenings from Outside of Active regions: Closing in on Nanoflares? 19.06.2017 Boulder, United States of America Kuhar Matej; Krucker Samuel;
Joint Hinode-11/IRIS-8 science meeting Poster A NuSTAR X-ray Brightening from Outside of Active Regions: Thermal or Nonthermal? 30.05.2017 Seattle, United States of America Kuhar Matej;


Associated projects

Number Title Start Funding scheme
140308 High-Energy Heliophysics with NuSTAR 01.01.2013 Project funding (Div. I-III)

Abstract

The newly established group in ‘Applied High-Energy Heliophysics’ atUniversity of Applied Sciences Northwestern Switzerland (FHNW) proposesfor funding to support a series of observations of the Sun in the 5-80 keVX-ray band using the Nuclear Spectroscopic Telescope ARray (NuSTAR)satellite, a NASA small Explorer whose primary mission is in astrophysics. Designed with true focusing optics for extremely high sensitivity, NuSTARis an astrophysical observatory, but unlike virtually every otherhigh-energy astrophysics mission to date, it is capable of being pointedat the Sun. NuSTAR will observe the Sun with a sensitivity over 200 timesbetter than that of the Reuven Ramaty High Energy Solar SpectroscopicImager (RHESSI), the currently most capable mission in this energy range.This increase in sensitivity opens new windows for high-energyheliophysics, and will likely produce paradigm-shifting findings.The PI of this proposal was recently elected by the NuSTAR sciencesteering committee as a NuSTAR science team member in charge of planning solar observations and leading the solar science. This opportunityprovides a unique chance for our group at FHNW to establish itself throughthis high-profile project.The two major scientific problems proposed to be addressed by thesesensitive hard X-ray observations are: 1) Coronal heating by microflares,and 2) Mechanisms of electron acceleration in flares and Coronal MassEjections (CME). Besides data analysis and interpretation, the tasks wouldalso include participation in the planning of observations as well asmaking spectral and spatial simulations of the expected NuSTARobservations in preparation for the first solar observations with NuSTAR.The proposed tasks complement already existing projects at FHNW, and would greatly help to establish the newly founded group as the world-wideleading experimental and observational facility in high-energy Heliophysics.
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