ralf siebenmorgen mir on elt’s the mid-infrared on elt’s mir recommended to be essential (3 –...
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Ralf Siebenmorgen MIR on ELT’s
The Mid-infrared on ELT’s
MIR recommended to be essential
(3 – 25µm)
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Ralf Siebenmorgen MIR on ELT’s
R~300
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Ralf Siebenmorgen MIR on ELT’s
Present MIR instruments: <8m
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Ralf Siebenmorgen MIR on ELT’s
Sensitivity = BLIP x Site x Telescope
Present MIR instruments: ≥8m
4
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Ralf Siebenmorgen MIR on ELT’s
A taste of spatial resolution 4m viz 8m
AGN viz starburst
resolved
unresolved
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Ralf Siebenmorgen MIR on ELT’s
HR spectroscopy: velocity fieldKeplerian gas motion-> black hole mass
0.5
BHBH 8
O
100 Mpc0.03
10
M
M D
Wold et al. 2006
NGC 7582 NeII (12.8µm)
VLT,JWST, … - ≤ 10m - unresolved ELT - > 30m - resolved
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Ralf Siebenmorgen MIR on ELT’s
Spitzer
VISIR
METIS
flux [ mJy]
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Ralf Siebenmorgen MIR on ELT’s
MIR/ELT will solve host of astronomical questions by resolved spectroscopy and imaging
MIR/ELT `galactic’ science cases
- Life cycle of dust- Star formation- Governing disk architecture for planet formation- Dynamical history of the solar system- ….
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Ralf Siebenmorgen MIR on ELT’s
Formation of stars in MC
Evolution of proto-planetary & debris disks
Planet formationSolar system: unique?
Building blocks &Origin of life
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Ralf Siebenmorgen MIR on ELT’s
~13µm
Richness of MIR
+ solid state+ PAH+ atoms+ ions
+extincti
on
Molecules:
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Ralf Siebenmorgen MIR on ELT’s
MIR spectroscopy in: ISM, disks, comets
Resolved lines -> velocity information; density, temperature, abundance
TW Hya[NeII]
v [km/s]
Pascuci&Sterzik’09
Photoevoparative disk wind Single exposure (not with ALMA)
wavelength (nm)
flux
N2Oj ≤ 46 transitions
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Ralf Siebenmorgen MIR on ELT’s
scale: --- ELT ---> <---- ALMA ---
Proto-planetary disks
- chemical structure of the disk- velocity field and turbulent disk mixing- probe pathways of planet formation
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Ralf Siebenmorgen MIR on ELT’s
- Ground: RV studies + scattered light imaging ->Orbit parameters (M, r, ε)
Transit~> atmosphere
Exo-planets
- Space: Kepler, SIM improved statistics
- ELT/MIR: Resolving disk structureVelocity fieldPlanet thermal emissionSpectroscopy of bio markers
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Ralf Siebenmorgen MIR on ELT’s
3-5µm: ices in comets (Mumma et al.)
In-situ search for prebiotic molecules
Delivery to Earth via heavy bombardment?->ELT provide event Statistics of:
Origin of life ?
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Ralf Siebenmorgen MIR on ELT’s
Debris disk structure: theory
Disk + planet: possible dust density (Ozernoy et al.)
20µm dust emission at 40pc (Wilner et al)
JWST
30m
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Ralf Siebenmorgen MIR on ELT’s
Debris disks with planet: beta Pic
Lagrange et al. 3.6µm Telesco et al. 8-25µm
ELT -> Statistics on the debris disk structure
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Ralf Siebenmorgen MIR on ELT’s
Thermal emission of a planet
Pantin et al. ‘08