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    Ghaouti HANSALI

    News directly on the blog MUSE



    Today the first non solar photons reach MUSE (R. Bacon - 01/02/2014)

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    It is for all of us a great event. The star we just observed is Kapteyn’s star, named from a dutch astronomer Jacobus Kapeteyn who discover it in 1898. It is a M1 red dwarf star of 9th magnitude located in the constellation of Pictor.

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    First light video

    On a more technical part, one can say that this first half technical night has been very successful. The long and careful work performed by the team and ESO staff payed off. On the first exposure, the star came right to the center. Tracking, Derotator, Focus … everything seems to be there. Automatic pipeline is already producing images and cubes, observing templates are working fine, tools for logging and analyzing data are also there: the system is in place and an already impressive number of spectra have been produced. Of course more quantitative assessment of the performances will have to be done during the upcoming nights, but the fact that the system is already very functional is very promising.

    Again, let’s share our enthusiasm. Future is bright.

    The instrument MUSE is finally on the telescope!

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    La plateforme (foyer Nasmith) avant…
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    La plateforme (foyer Nasmith) après !

    After a perilous transport, MUSE instrument was gruté until Nasmith platform unit 4 (Yepun) VLT in Chile. The video of the event …

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    Envole vers la plateforme

    MUSE wird wieder vollständig abgeschlossen und funktionale Integration in Paranal Hall. (Chili, P Caillier 16/12/2013)

    Nach Wochen der intensiven Arbeit in Schichten gearbeitet, wurde der letzte Kanal ausgerichtet an diesem Sonntag. Sie werden den Beweis für diese Aussage mit einem Screenshot von dem Belichtungsfeld mit den 24 Kanälen aktiv angebracht finden.

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    Capture d’écran du panneau d’exposition avec les 24 canaux actifs

    Diese große Leistung wird uns nun ermöglichen, mit Abschluss der Elektronik und Lichtdichtheitsprüfung vorwärts zu gehen bis zum 20. Dezember und weiter mit dem letzten Integrationssequenz am Teleskop ab Anfang des nächsten Jahres.

    Das Ziel, das Instrument Integration vor Ende des Jahres fertig ist jetzt bei der Hand (P Cailler - 29/11/13)

    Das MUSE Wiedereingliederung in Paranal erreicht einen neuen Schritt vor kurzem mit der Ausrichtung und im Betrieb von 6 seiner 24 Kanäle setzen.

    Wir erhalten in der Anlage ein paar Bilder in Bezug auf die letzte Periode:

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    MUSE @ PARANAL (One channel - 21 nov 2013)

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    MUSE @ PARANAL (Six channels - 27 nov 2013)

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    MUSE INTEGRATION (27 nov 2013)

    MUSE has started its rebirth (P. Caillier)

    After its dismantling in Europe MUSE has started its rebirth in the Paranal integration hall. Please have a look of the last 48 hours progress :

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    Friday 1st of November – 9h00
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    Friday 1st of November – 11h00
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    Friday 1st of November – 19h00
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    Saturday 2nd of November – 11h30
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    Saturday 2nd of November – 18h00

    Neueste Integration auf dem Paranal (P. Caillier 01/11/13)

    Die zweite Sendung angekommen und wurde entlassen gestern (siehe Fotos im Anhang).

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    The second consignment arrived safely on site in Chile

    Das IMS wurde ausgepackt und wird in der Lobby gewickelt.

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    The IMS has been unpacked and is being wound in the lobby.

    Der VCS wurde ausgepackt und wird für Leckage im Bereich der Rezeption getestet.

    Die Verlängerung Strahl integriert und mit einer Abweichung von dem Gebiet auf der x irlos Schnittstelle ausgerichtet sind. Alle anderen Werte der Ausrichtung EB sind entweder gleich oder besser (viel bessere Sicht) nach Lyon.

    Kommen in den nächsten Tagen, die Installation des IMS auf der Nasmyth Plattform Lobby gleichwertige Schnittstelle, Installation die Installation des IMS und dem VCS Erweiterung Strahl und dann das Zelt.

    A month in 3 minutes accelerated video …

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    10/09/2013 – 16/10/2013

    In less than a month, the MUSE instrument was completely disassembled and crated for its new start in the Atacama Desert in Chile.

    While the first items arrive in Chile, recent cases leave Lyon site (13 oct. 2013).

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    First items near the Chile Integration site

    The last boxes bound for chili
    The last boxes bound for chili

    First IFU have left the observatory for Chile.

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    After an intense period of dismantling the first box leave the integration hall of the Observatory of Lyon for a second integration hall in the Atacama Desert in Chile.

    MUSE PAE Granted

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    MUSE PAE Granted

    We are proud to announce that yesterday, 10 September 2013, ESO has granted the PAE to the MUSE project. This is a key milestone which has been achieved. Dismounting and packing will start very soon and the first shipment of the instrument is expected early October.

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    PAE document

    The MUSE press event was very successful!

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    L/R: M. François-Noël GILLY, M. Tim De ZEUWW, M. Gérard COLLOMB, Madame Geneviève FIORASO, M. Roland BACON, Madame Florence PERRIN, M. Roland CRIMIER

    On September 6th 2013, Lyon Observatory presented to the press and special guests this instrument which modulated the life at the institute over the past 10 years. Attending the event were Mrs Geneviève Fioraso, French Minister for Higher Education and Research, ESO Director General Tim de Zeeuw, as well as representatives from the CNRS, the University and the local government.

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    Dir. Gen. ESO Tim de Zeuww

    The MUSE Integration team on behalf of the whole MUSE Consortium is proud to announce the finalization of the MUSE instrument integration at CRAL.

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    After an intense period of channel and IFU integration, the 24th IFU has been integrated and put in operation yesterday 07/06/2013.


    Even though we have now a good knowledge of our own galaxy, this vast ensemble of hundred billion stars called the Milky Way, we have much less information about how it was formed, and how it has evolved since its birth nearly 10 billion years ago.

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    Observing young galaxies, when the Universe was only a few hundred million years old, is key to discriminating the different models. However, observing galaxies 10 billion light-years away is a real challenge. At these distances galaxies appear very tiny and extremely faint.

    read more


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    The MUSE instrument concept opens a very wide field of investigation: formation and evolution of galaxies, stellar populations in nearby galaxies, supermassive black holes, young stars, planets and small celestial bodies. It allows us to study a large variety of objects over scales ranging from our Solar System to 10 billion light years ! MUSE will therefore allow us significant breakthroughs in many fields of modern astrophysics, such as: galaxy formation and evolution, stellar populations in nearby galaxies, supermassive black holes in nearby galaxies, planets and small celestial bodies in our Solar System.

    Read more


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    With its 370 million pixels, MUSE is the first and only instrument capable of blindly exploring a large volume of Universe. Because it opens new fields of investigation in optical astronomy, MUSE has a very high potential for making new discoveries. Furthermore, through its high angular resolution mode, it is also an exceptional tool to study complex physical phenomena, happening in most astronomical objects, with great details. Read more

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