Stellar and Solar Physics

Our team aims at providing answers to some key questions of solar and stellar physics, such as the heating process of the corona or the structure of solar and stellar interiors. The magnetic field playing a fundamental role in structuring the atmospheres of solar-type stars, it becomes possible to understand the coupling between the internal generation of magnetic field and its external signatures. The two major research topics are thus the dynamic and internal structure of the Sun and stars, and diagnostic and heating of the outer layers.

Dernières news

A giant solar eruption seen by Solar Orbiter

1 year 3 months ago

On February 16, the EUI/FSI telescope on Solar Orbiter has observed an impressively large prominence eruption, and traced it up to 6 solar radii, as it was as large as the Sun itself. This type of event can have consequences on technological applications (loss of satellites, degradation of the GPS signal, etc.)

The Solar Orbiter mission yields many first scientific results

1 year 4 months ago

For a mission that has just entered its scientific exploitation phase, Solar Orbiter has already produced many remarkable results. A recent special issue of Astronomy and Astrophysics brings together a multitude of studies and observations obtained during the mission's cruise phase. No less than 56 papers have been published, each containing data produced by one or several Solar Orbiter instruments, in which many laboratories including IAS have been strongly involved.

IAS participates in a live radio contact between ISS and Université Paris-Saclay

1 year 12 months ago

On 17 June 2021, the International Space Station (ISS) will fly over the Orsay campus of Université Paris-Saclay. To mark the occasion, a radio contact lasting approximately 10 minutes will be organised with Thomas Pesquet, live from the ISS. A unique opportunity to follow the conversation between the astronaut and secondary school and university students!

First images from ESA’s Solar Orbiter

2 years 10 months ago

The first images from ESA’s new Sun-observing spacecraft Solar Orbiter have just been released. Solar Orbiter, launched on 10 February, completed its commissioning phase in mid-June and performed its first close approach to the Sun. Shortly thereafter, the European and US science teams behind the mission’s 10 instruments were able to test the entire instrument suite in concert for the first time.

The SPICE spectrometer on the Solar Orbiter mission obtains first light

3 years 1 month ago

The SPICE instrument on board ESA's Solar Orbiter mission has successfully obtained its first measurements of the Sun on April 21, 2020. This is a major step for the instrument and for the mission, which was launched on February 10, 2020 and is currently on its way to study the Sun closely.

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