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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 team is quite happy (R. Bacon 21/01/2014)

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    Photo copyright Eric Le Roux, Université Claude Bernard Lyon I, CNRS, ESO

    oday was a very successful day. The cryogenic system seems to work quite well and all channel are performing as expected. A first flat field exposure has been obtained, quickly followed by a picture of the telescope alignment tool. A quick analysis show that MUSE alignment has not been perturbed by the move to UT4. A very good news.

    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 is again fully completed and functional in the Paranal Integration Hall (Chili, P Caillier 16/12/2013)

    After weeks of intense work done in shifts, the last channel was aligned this Sunday. You will find the proof of this statement attached with a screenshot of the exposure panel with the 24 channels active.

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

    This great achievement will enable us now to go forward with finalisation of electronics and light tightness check till the 20th of December and carry on with the final integration sequence on the telescope starting beginning of next year.

    The goal to finish the instrument integration before the end of the year is now at hand (P Cailler - 29/11/13)

    The MUSE reintegration in Paranal reached a new step recently with the alignment and put in operation of 6 of its 24 Channels.

    We will find attached some pictures relative to the last period.

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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

    Latest integration at Paranal (P. Caillier 01/11/13)

    The second consignment arrived safely and was discharged yesterday.

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    The second consignment arrived safely on site in Chile

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

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

    The VCS has been unpacked and is being tested for leakage in the reception area.

    The extension beam is integrated and aligned with a deviation of the field on the x irlos interface. All other alignment values ​​of EB are either equivalent or better (much better view) to Lyon.

    Coming in the next few days, the installation of the IMS on the Nasmyth platform lobby equivalent interface, the installation of the IMS and the VCS extension beam and then installing the tent.

    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

    See videos…

    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.
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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.
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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.
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