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02-05-2013
netron-stars-as-spca-laboratories

Neutron stars as space laboratories

6-10 May astronomers from all over the world will gather in Amsterdam to attend a symposium on neutron stars. In debate centre Felix Meritis they will discuss the latest results in neutron star research. Neutron stars are collapsed cores of giant stars that have exploded as super nova's. Due to their ultra-dense matter neutron stars are excellent laboratories for research into extreme space phenomena.        Read more (in dutch)
28-04-2013
end-of-mission-for-dutch-molecule-hunter-in-space

End of mission for Dutch molecule hunter in space

Today, after 3,5 years in space, the liquid helium coolant on board the Herschel space observatory (ESA) has finally run out. This means that the Dutch molecule hunter HIFI - one of its three instruments - has ceased to collect spectra. But the scientific heritage is impressive already. Thanks to HIFI, scientists now much better understand the cosmic cycle of gas which leads to for instance the birth of stars and planets, and the role (water) molecules play.         More
23-04-2013
herschel-hifi-links-jupiter-s-water-to-comet-impact

Herschel-HIFI links Jupiter's water to comet impact

ESA’s Herschel space observatory has solved a long-standing mystery as to the origin of water in the upper atmosphere of Jupiter, finding conclusive evidence that it was delivered by the dramatic impact of comet Shoemaker-Levy 9 in July 1994.           More
15-04-2013
thousands-of-citizens-have-enlisted-for-the-national-ispex-measurement-day

Thousands of citizens have enlisted for the national iSPEX Measurement Day

On a sunny day somewhere between the middle of May and the end of June a great number of Dutch citizens will register fine dust in the air with their smartphones and the iSPEX-add on. Since February thousands of Dutch citizens have enlisted for taking part in the national iSPEX Measurement Day. The production of more than 10.000 add-ons is in full swing. They will be distributed in the middle of May and by that time the free app will be ready as well. The subscription date for iSPEX runs until the end of April. People who are interested can order an add-on in the coming weeks through longfonds.nl/ispex.         More
05-03-2013
succesful-space-telescope-about-to-take-its-last-breath

Succesful space telescope about to take its last breath

ESA’s Herschel space observatory is expected to exhaust its supply of liquid helium coolant in the coming weeks after spending more than three exciting years studying the cool Universe. Herschel was launched on 14 May 2009 and, with a main mirror 3.5 m across, it is the largest, most powerful infrared telescope ever flown in space.                       More

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Registration SAFARI meeting 2011

SPICA / SAFARI

SPICA is a next-generation infrared astronomy mission, lead by JAXA (Japan) with important contributions foreseen from ESA and a European consortium. With its deeply cooled (< 6 K) large (3-m class) telescope, SPICA will be able to achieve superior sensitivity and high spatial resolution.

SAFARI (SpicA FAR-infrared Instrument) is one of the three instruments planned for the SPICA payload. SAFARI is the FIR imaging spectrometer (30 - 210 μm, spectral resolution of 10 to 10000), next to two mid-infrared instruments, namely the MIR coronograph (3.5/5 - 27 μm)  and the MIR camera/spectrometer (5 - 38 μm).

Information/documentation with regard to the development and building of SAFARI can be found in the "SAFARI Instrument" menu item on the left. 

More info

LEA people

Workshop on Millimetron Science and Instrumentation


15-16 January 2009
SRON Utrecht, The Netherlands

[ The workshop was finally moved to SRON Utrecht due to a parallel event in Groningen ]

For registration, please, send e-mail to Andrey Baryshev (A.M.Baryshev at sron.nl) for instrumentation part and Marco Spaans (spaans at astro.rug.nl) for astrophysics part with indication of topic of interest.

Goal of workshop: Present the status of Millimetron mission; discuss  astrophysical potential and science cases; discuss and review the Millimetron instrumentation and propose preliminary science requirements.

Preliminary Agenda of the workshop can be found here. We suggest, that the first day will be mostly devoted to mission status and astrophysics and the second day will be devoted to discussion on instrumentation. Short mission description, preliminary summary of instrumentation content and sensitivities can be found here.

Travel information can be found here

Accommodation: Workshop has been moved to Utrecht. There is also big event in Utrecht. The best hotel: Mercure Hotel in Bunnik near Utrecht. Follow this link for booking. Please consult the organizers if you find problem to reserve.

Science drivers

Millimetron is capable of peering deep into dusty regions and can probe the birth places of stars and planets, as well as the epochs of galaxy formation. The use of state-of-the-art submm cameras with high-to-medium resolution imaging spectrometers, will allow a complete picture of the energy balance and dynamical processes in young astrophysical systems. Therefore, Millimetron will be a major step forward after Herschel, ESA’s cornerstone mission to be launched in 2009.

The wavelength range 50-600 um is ideally suited to study warm gas (T>100 K) and dust (T>10 K) for a range of astrophysical objects, e.g.:
acive galaxies like Seyferts and ULIRGs, irradiated gas clouds in the Milky Way and (local) starburst galaxies, AGN exposed to feedback effects from accreting black and shock waves, high redshift systems, and Galactic (high-mass) star-forming regions including proto-planetary disks.

For example, Millimetron can detect warm dust (30-50 K), fine-structure lines ([OI], [CII], [NII], [CI] etc.), and water lines. Millimetron also covers CO lines from J=5-4 to J=41-40, in the rest frame. So high redshift galaxies can be probed since high J CO lines have frequencies that are shifted into the Millimetron window for redshifts of z=0-6. The same holds for the important [CII] 158 um cooling line that can be observed for z~0-4, an epoch when the bulk of the stars in the universe is formed.

Millimetron''s wavelength range can compliment and overlap with ALMA band 9 and 10, allowing for strong synergy, also in terms of space-VLBI. Furthermore, Millimetron can image the (redshifted) dust continuum emission from evolving galaxies and can obtain spectroscopic redshifts for many sources, allowing the origins of galaxies to be probed.

Specific topics that can be addressed by Millimetron are, among others:
The energetics and kinematics of power sources inside obscured galaxies; stars versus AGN, feedback effects. Star formation-dense molecular gas scaling laws for local quiescent and active galaxies. The growth of black holes with redshift and the Magorrian relationship. Physical properties of the multi-phase ISM in galaxies; turbulence, UV dominated and X-ray dominated regions, shocks and outflows, ionization balance, chemistry and magnetic fields. Resolving the far-infrared background at 100 micron. Differences between low- and high-mass star formation; the impact of environment (e.g., the Milky Way center and Orion), initial conditions, fragmentation and the origin of the IMF. Young stellar object evolution and proto-planetary disk physics.

Previous projects

Please see the sub-menu (ISO, IRAS) for further info.

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