Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Science with the solar space observatory Hinode

20.03.2008
The solar space observatory Hinode was launched in September 2006 [1], with the name "Hinode" meaning sunrise in Japanese. The Hinode satellite carries a solar optical telescope (SOT), an X-ray telescope (XRT), and an EUV imaging spectrometer (EIS).

Hinode investigates both the interior and the atmospheric regions of the Sun. Its primary objectives are to address the origin of the Sun's magnetic field, the driving force behind solar eruptive events, and the nature of the hot corona.

As recognition of the impact of Hinode on various branches of solar physics, Astronomy & Astrophysics is publishing a special feature this week consisting of 18 Letters that present the new results obtained with Hinode. These papers focus on the physics of sunspots, the emergence of magnetic flux on the solar surface, and the dynamics in the solar corona. Figure 1 illustrates these topics.

A handful of these papers are about sunspots, which are still mysterious in several aspects. They highlight the fine structure of the penumbra, which is the ring of radial structures surrounding the dark core of the spots (see Fig. 2). They present new evidence that the penumbra consists of sea-serpent-like magnetic flux tubes, embedded in a background wrapped around these tubes and connected to magnetic features outside the spot.

Several papers also study the dynamics of the solar corona, focusing on active solar regions and coronal mass ejections (CME, also known as transient events, illustrated on Fig. 3). The new Hinode observations show that the standard scenario describing solar flares do not fit microflares. The high resolution of the soft X-ray telescope on Hinode (see Fig. 4) will help to distinguish between different scenarios.

The papers published this week in A&A – which illustrate only a small part of the science with the new data – show new directions in solar research facilitated by the new solar space telescope Hinode. Through observations of all atmospheric layers of the Sun, from the photosphere and chromosphere into the corona, data from the Hinode observatory provide new insight into the structure and dynamics of the solar atmosphere, an important step toward a better understanding of stellar atmospheres in general.

Figures available at http://www.aanda.org/content/view/291/42/lang,en/

Jennifer Martin | alfa
Further information:
http://www.aanda.org/content/view/291/42/lang,en/

More articles from Physics and Astronomy:

nachricht Tangled magnetic fields power cosmic particle accelerators
14.12.2018 | DOE/SLAC National Accelerator Laboratory

nachricht In search of missing worlds, Hubble finds a fast evaporating exoplanet
14.12.2018 | NASA/Goddard Space Flight Center

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Data use draining your battery? Tiny device to speed up memory while also saving power

The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.

Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Data use draining your battery? Tiny device to speed up memory while also saving power

14.12.2018 | Power and Electrical Engineering

Tangled magnetic fields power cosmic particle accelerators

14.12.2018 | Physics and Astronomy

In search of missing worlds, Hubble finds a fast evaporating exoplanet

14.12.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>