ELFT HÍRADÓ

[vidakris AT konkoly.hu]

Szemináriumi meghívó / Invitation to a seminar
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CSFK CSI SZEMINÁRIUM / KONKOLY OBSERVATORY SEMINAR

Date: Apr 02 (Thursday) 14:00


Thomas Müller (Max Planck Institute for Extraterrestrial Physics, Garching, 
Germany):
JWST's View on Small Asteroids

The thermal emission peak of near-Earth and main-belt asteroids lies within 
the mid-IR wavelength range covered by JWST's Mid-Infrared Instrument (MIRI) 
(5-28 µm). MIRI observations are therefore particularly powerful for thermal 
studies, even for very small bodies down to the decameter scale.
Thermal flux measurements can be translated into robust size and albedo 
determinations when combined with reflected-light data. In addition, 
thermophysical modeling of MIRI observations constrains thermal inertia, 
surface roughness, and regolith properties. This is essential for the 
characterization of space mission targets and critically important for 
potentially hazardous asteroids.

Deep JWST surveys can probe the size-frequency distribution to unprecedented 
small-object limits, with a wide range of implications for understanding 
collisional evolution and constraining the source regions of meteorites.

Finally, mid-infrared spectroscopy accesses diagnostic silicate features 
(e.g., Christiansen and Reststrahlen bands), offering compositional insights 
complementary to visible and near-infrared observations.

I will present recent results from dedicated JWST observations, as well as 
studies based on serendipitous detections of both known and previously 
unidentified asteroids.  


https://konkoly.hu/k-szeminariumok

The seminar will be held live in the Detre hall with audience, but also 
streamed online via Zoom. If you are unable to attend the presentation in 
person, you can join us via this link
https://us06web.zoom.us/j/82806911982?pwd=SVZpT0syQ1J6dHBvSkF4N2dXNEQ0dz09
or the meeting ID: 828 0691 1982 and passcode: 206265



Everyone is welcome!

Krisztián Vida, Mina Ghodsi
organizers
https://konkoly.hu/k-szeminariumok