q~=W= ==^= Alberto Krone-Martins (U. Lisboa, - - PowerPoint PPT Presentation

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q~=W= ==^= Alberto Krone-Martins (U. Lisboa, - - PowerPoint PPT Presentation

Sep 16, 2023 49 likes •593 views

arXiv:1707.01348 q~=W= ==^= Alberto Krone-Martins (U. Lisboa, Portugal) on behalf of the Theia collaboration Alberto Krone-Martins Theia : the new Astrometry frontier The science of Gaia

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SLIDE 1

Alberto Krone-Martins (U. Lisboa, Portugal)

  • n behalf of the Theia collaboration

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 2
  • Driving questions
  • > 80% of the matter in the Universe seems to be Dark Matter...

but what is Dark Matter?

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01 arXiv:1707.01348

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SLIDE 3
  • Driving questions
  • > 80% of the matter in the Universe seems to be Dark Matter...

but what is Dark Matter?

  • It seems that there should be some habitable exo-Earths around our

neighbour Sun-like stars... but... where are these habitable exo-Earths? And how is the architecture of these systems?

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 4
  • Driving questions
  • > 80% of the matter in the Universe seems to be Dark Matter...

but what is Dark Matter?

  • It seems that there should be some habitable exo-Earths around our

neighbour Sun-like stars... but... where are these habitable exo-Earths? And how is the architecture of these systems?

  • We know that there are neutron stars and black holes around there...

but... what is the behaviour of matter in Nature’s densest environments?

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 5

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones? And what is the architecture of the systems?

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 6

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones? And what is the architecture of the systems?

Kinematical and dynamical effects

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 7

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones? And what is the architecture of the systems?

Kinematical and dynamical effects Astrometry

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 8

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones? And what is the architecture of the systems?

Kinematical and dynamical effects Astrometry

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 9

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones? And what is the architecture of the systems?

Kinematical and dynamical effects Astrometry

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 10

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 11

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 12
  • Dark Matter:
  • Low mass galaxies (108-9Msun) dominated by DM
  • Core-like structure if self-interacting DM or baryonic feedback
  • Satellites and subhalos (106-8Msun) should be rare if warmer DM particles

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Mass of the smallest DM halos!

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 13

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

halo! subhalos!

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SLIDE 14

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

halo! subhalos!

Myr Gaia-like Theia-like

  • Different DM particles : different spectrum of small amplitude,

large-scale correlated, perturbations (need at least 3σ!)

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SLIDE 15
  • Dark Matter Halo shape
  • Different DM particles : different halo shapes (need at least 3σ!)
  • Hyper Velocity Stars at the Halo : infeer the DM particle behaviour

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

standard DM halo model

  • blate

spherical

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 16

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones?

Kinematical and dynamical effects Astrometry

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 17
  • Astrometry:
  • Not strongly affected by stellar activity;
  • No sin (i) effect on the mass;

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 18
  • Astrometry:
  • Not strongly affected by stellar activity;
  • No sin (i) effect on the mass;
  • Full characterisation of the system masses and orbital information.

very simplistic way to perform a detection of a 1.5 MEarth planet at the HZ of a Sun at 10pc

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 19
  • Nearby, habitable, exoplanets around FGK stars

Theia will unambiguously detect habitable Exo-Earths around our nearest FGK stars

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 20
  • Nearby, habitable, exoplanets around FGK stars

Theia will unambiguously detect habitable Exo-Earths around our nearest FGK stars

“conservative” technique

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 21
  • Nearby, habitable, exoplanets around FGK stars

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

improved technique

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SLIDE 22

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones?

Kinematical and dynamical effects Astrometry

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 23
  • EOS is still not well constrained in NS-like environments
  • Nothing appears to rule out quark or strange stars, but we haven’t observed

them yet.

  • Determination of masses of

Neutron Stars in binary systems;

  • Determination of very precise

distances via parallax.

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 24
  • EOS is still not well constrained in NS-like environments
  • Nothing appears to rule out quark or strange stars, but we haven’t observed

them yet.

  • Determination of masses of Neutron Stars in binary systems;
  • Determination of very precise distances via parallax.
  • Proper motions and orbital determination of Black Hole binaries: formation of

the systems, accretion disc warping and signatures of the shadow.

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 25

5 10 15 20 R-Band Magnitude 0.1 1 10 100 Predicted Astrometric Signature ( as)

HMXBs (Mopt > 8 Msun) IMXBs (Mopt = 1-8 Msun) LMXBs (Mopt < 1 Msun) ScoX-1 CygX-2 V404Cyg CenX-4 PSRJ1023+0038 GROJ1655-40 V4641Sgr GX304-1 V725Tau VelaX-1 CenX-3 V662Cas CygX-1 4U1700-377 LS5039 SS433 1FGLJ1018 LS I +61 303

Theia (20 hours, S/N=6) Theia (200 hours, S/N=6) Gaia (end of mission, S/N=6, no prior)

  • Extreme astrophysical objects

Theia will probe matter at the most extreme conditions in nature.

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 26

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones?

Kinematical and dynamical effects Astrometry

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 27

What is the behaviour of matter in Neutron Stars and around Black Holes? What is the nature of Dark Matter? Which nearby Solar-like stars have Earth- like planets in their habitable zones?

Kinematical and dynamical effects Astrometry 0.15 uas to 10 uas (R~5–20, but extending to fainter) strictly differential measurements in a large FoV

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 28

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Science Payload Science Questions

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Telescope Camera Telescope metrology Focal plane array metrology Instrument Control Unit Telescope Control Unit cold and temperature stabilized payload units warm payload units harness

Power bus System bus Science data SpW bus

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Telescope Camera Telescope metrology Focal plane array metrology Instrument Control Unit Telescope Control Unit cold and temperature stabilized payload units warm payload units harness

Power bus System bus Science data SpW bus

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 31

TheiaM5-FPA-Iteration-3d

Overview of the optical design Korsch TMA :: no aberrations up to third order Airy disk Optical Aberrations 0.8m primary mirror EFL 32m 0.5 Deg FoV Korsch on-axis TMA

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 32

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Telescope Camera Telescope metrology Focal plane array metrology Instrument Control Unit Telescope Control Unit cold and temperature stabilized payload units warm payload units harness

Power bus System bus Science data SpW bus

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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TheiaM5-FPA-Iteration-3

Theia::FPA-I-3b 274 mm 310 mm SiC FPA Detector Plate Science detectors

Nyquist sampled PSF

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

6x6 Elliptical FoV Science Array

  • f 4k vs. 4k Detectors

Baseline : Optical (350-950nm) but NIR option (Int. participation if ESA mission)

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 34

TheiaM5-FPA-Iteration-3

Theia::FPA-I-3b

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

6x6 Elliptical FoV Science Array

  • f 4k vs. 4k Detectors

Baseline : Optical (350-950nm) but NIR option (Int. participation if ESA mission) λ/1000 SH WFS: optical surfaces deformations

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SLIDE 35

TheiaM5-FPA-Iteration-3

~ 1 GB/frame, 1 frame/minute (Dark Matter) FPGA-based on board processing

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Focal Plane Array Module (FPAM) FPAM13-24 ICU FPAM Integrator Box #4 ICU FPAM Integrator Box #2 FPAM1-12 ICU FPAM Integrator Box #1 Detector Local DPU MAIN / REDU S/C I/F TOP ICU MAIN S/C I/F MODULE FPAM25-28 ICU FPAM Integrator Box #3 arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 36

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Telescope Camera Telescope metrology Focal plane array metrology Instrument Control Unit Telescope Control Unit cold and temperature stabilized payload units warm payload units harness

Power bus System bus Science data SpW bus

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 37

TheiaM5-PM-Iteration-3d

0.8m primary mirror Overview of the payload Overview of the payload Structures: SiC or Si3N4 Optics: Zerodur, ULE or Sitall Mission duration : 4yr (built for 8 yrs) EFL 32m Korsch on-axis TMA

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Rigid Hexapod configuration

arXiv:1707.01348

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SLIDE 38

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Telescope Camera Telescope metrology Focal plane array metrology Instrument Control Unit Telescope Control Unit cold and temperature stabilized payload units warm payload units harness

Power bus System bus Science data SpW bus

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 39

TheiaM5-PM-Iteration-3d

Lesson from Gaia :: Monitor, monitor, monitor

Independent linear interferometers : monitoring for corrections on ground.

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 40

TheiaM5-PM-Iteration-3d

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

18 retroreflectors 36 signals (18/24 x I/Q redundant outputs) 36 signals (18/24 x I/Q nominal outputs) 18 polarised fibers 18 microinterferometers 1 to 18 splitter 2 to 1 combiner Nominal electronics Redundant electronics

Power bus System bus

Science data

SpW bus

Amplification Digitalization Power supply Control Power supply Control Amplification Digitalization Laser 1 Laser 2

Independent linear interferometers : monitoring for corrections on ground. ~50 pm

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 41

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Telescope Camera Telescope metrology Focal plane array metrology Instrument Control Unit Telescope Control Unit cold and temperature stabilized payload units warm payload units harness

Power bus System bus Science data SpW bus

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 42

TheiaM5-PM-Iteration-3c

Lesson from Gaia :: Monitor, monitor, monitor

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 43

TheiaM5-PM-Iteration-3d

CNES

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

polarised fibers Nominal electronics Redundant electronics

Power bus System bus

Power supply Control Power supply Control Laser 2 1 to 2 splitter 2 to 1 combiner Laser 1 Phase modulator Phase modulator Fiber launcher Switch Camera

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

Fringes projected in FPA

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SLIDE 44

TheiaM5-PM-Iteration-3c

Lesson from Gaia :: Monitor, monitor, monitor

Interferometric FPA callibration Prototype @ IPAG reached 5x10-5 pixel size

CNES

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 45

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

0,96 uas

0,35 uas 0,58 uas 0,33 uas 0,52 uas 0,30 uas Detection noise error Target star

per one-hour observation Differential Measurement

Detection noise error Reference stars Errors Focal-plane metrology differential error Field Dist. Calibration

Astrometric accuracy

Astrometric geometry Errors

  • ns

Metrological callibration Physics Modelling Reference Frame Photon noise (V~7)

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 46

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 47

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Science Payload Mission Science Questions

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 48

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

  • ESA-led, ESA-operated mission with consortium funded payload

(“standard” ESA mission) : 536M€ (inc. 10% Cont) + 51.5M€ (inc. 15% Cont)

  • Ariane 6.02 launch, Large Lissajous at L2
  • Spacecraft dry mass with margin: 1063 kg. Total launch Mass: 1325 kg

Soyuz Fairing 936S

Launch and Early Operations (~days) L2 Transfer and commissioning (6 months)

Nominal Theia Science Operations

(4 years) Decommissioning (1 month)

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 49

Thales

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 50

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

Science Payload Mission Consortium Science Questions

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 51

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

  • The core team includes members from the UK (Durham-PI Inst.), France,

Italy, Germany, Sweden, Spain, Switzerland and Portugal (USA if int. part.).

  • Additional contributions from Austria, Denmark, Finland, Greece, Hungary,

The Netherlands and Poland.

  • Participants from seven countries outside Europe: Brazil, Canada, China,

India, Israel, Japan and USA (“non-enabling” contribution).

  • 22 countries
  • > 200 Researchers
  • ~70 contributors

to the proposal

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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SLIDE 53

A mission concept designed:

  • To be the 1st to probe small-scale properties of Dark Matter
  • To be the 1st to reliably probe the shape of MW DM halo
  • To be the 1st to detect habitable exo-Earths around FGK stars

unambigously and to probe their systems architectures

  • To significantly improve the knowledge of Neutron Star EOS and of matter

around Black Holes

  • Plus : ~15% open time & serendipitous discoveries

Thales

qÜÉá~=W=íÜÉ=åÉï=^ëíêçãÉíêó=ÑêçåíáÉê

arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01

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Thales

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arXiv:1707.01348 Alberto Krone-Martins – Theia : the new Astrometry frontier – The science of Gaia and future challenges – Lund – 2017.09.01