J-M Petit, TNO2006, Catania. July 03-07, 2006

The CFHT Survey:First results

Jean-Marc Petit

CNRS/Observatoire de Besançon

(Please look at the notes. All informations are there)

J-M Petit, TNO2006, Catania. July 03-07, 2006

CFEPS Team

Canada: Gladman, Kavelaars, Jones, van Laerovean, Trousil

France: Petit, Rousselot, Mousis, Doressoundiram, Veillet

Spain: Campo Bagatin, Benavidez

United States: Parker, Bieryla

+ others

J-M Petit, TNO2006, Catania. July 03-07, 2006

Quick Summary (1)

● ~400 sq.deg. of discoveries near the Ecliptic

● ~350 sq.deg. with the planned observing sequence

● 40 sq.deg. in the galactic plane

– not properly suited for TNO search

● ~310 sq.deg. of good, fully useable data

– currently 404 discovered objects (not all fields searched yet)

– 244 objects characterized (not all fields characterized yet)

J-M Petit, TNO2006, Catania. July 03-07, 2006

Quick Summary (2)

● Fully characterized and tracked sample from 2003

– 94 fields

– 79.14 sq.deg.

● MegaCAM coverage: 0.9 sq.deg. ● some overlap● chips failure on some blocks

– 74 discovered objects

– 55 objects with accurate orbit

● Full characterization of discovery efficiency with:

– magnitude

– rate of motion

J-M Petit, TNO2006, Catania. July 03-07, 2006

The Idea

J-M Petit, TNO2006, Catania. July 03-07, 2006

Stellar Encounters

Planet Migration

Rogue planet Scattering

Measure surviving population

KBO orbits

constrain scatteringprocess(es)

J-M Petit, TNO2006, Catania. July 03-07, 2006

J-M Petit, TNO2006, Catania. July 03-07, 2006

J-M Petit, TNO2006, Catania. July 03-07, 2006

Because of this....

J-M Petit, TNO2006, Catania. July 03-07, 2006

Discovery, 2 blocks

J-M Petit, TNO2006, Catania. July 03-07, 2006

Before checkup

J-M Petit, TNO2006, Catania. July 03-07, 2006

After checkup

J-M Petit, TNO2006, Catania. July 03-07, 2006

Before 1 year

J-M Petit, TNO2006, Catania. July 03-07, 2006

After 1 year

J-M Petit, TNO2006, Catania. July 03-07, 2006

At 2 years

J-M Petit, TNO2006, Catania. July 03-07, 2006

Keeping the « Tracked » objects

J-M Petit, TNO2006, Catania. July 03-07, 2006

Noticed, [as expected]

J-M Petit, TNO2006, Catania. July 03-07, 2006

1 year orbits

J-M Petit, TNO2006, Catania. July 03-07, 2006

3 year orbits

J-M Petit, TNO2006, Catania. July 03-07, 2006

Some Results

J-M Petit, TNO2006, Catania. July 03-07, 2006

Spatial distribution

gal galaxy axypla planene

Bad

Bad

Weat

Weat

herher

galagalaxyxy

planplanee

J-M Petit, TNO2006, Catania. July 03-07, 2006

(H,I) distrib, good CFEPS objects

J-M Petit, TNO2006, Catania. July 03-07, 2006

Toy model of the Kuiper Belt

J-M Petit, TNO2006, Catania. July 03-07, 2006

CFEPS 2003 objects and Model detections

J-M Petit, TNO2006, Catania. July 03-07, 2006

Another simulation

J-M Petit, TNO2006, Catania. July 03-07, 2006

CFEPS 2003 objects versus Model

J-M Petit, TNO2006, Catania. July 03-07, 2006

Again, other simulation

J-M Petit, TNO2006, Catania. July 03-07, 2006

MPC objects, 3 oppositions

J-M Petit, TNO2006, Catania. July 03-07, 2006

MPC model versus CFEPS 2003

J-M Petit, TNO2006, Catania. July 03-07, 2006

MPC model versus CFEPS 2003

J-M Petit, TNO2006, Catania. July 03-07, 2006

MPC model versus CFEPS 2003

J-M Petit, TNO2006, Catania. July 03-07, 2006

J-M Petit, TNO2006, Catania. July 03-07, 2006

J-M Petit, TNO2006, Catania. July 03-07, 2006

Quick Summary (1)

● ~400 sq.deg. of discoveries near the Ecliptic

● ~350 sq.deg. with the planned observing sequence

● 40 sq.deg. in the galactic plane

– not properly suited for TNO search

● ~310 sq.deg. of good, fully useable data

– currently 404 discovered objects (not all fields searched yet)

– 244 objects characterized (not all fields done yet)

J-M Petit, TNO2006, Catania. July 03-07, 2006

Quick Summary (2)

● Fully characterized and tracked sample from 2003

– 94 fields

– 79.14 sq.deg.

● MegaCAM coverage: 0.9 sq.deg. ● some overlap● chips failure on some blocks

– 74 discovered objects

– 55 objects with accurate orbit

● Full characterization of discovery efficiency with:

– magnitude

– rate of motion

J-M Petit, TNO2006, Catania. July 03-07, 2006

Thanks QSO Team

J-M Petit, TNO2006, Catania. July 03-07, 2006

L4p07

J-M Petit, TNO2006, Catania. July 03-07, 2006

Clones

J-M Petit, TNO2006, Catania. July 03-07, 2006

A new large separation binary

J-M Petit, TNO2006, Catania. July 03-07, 2006

A new large separation binary

J-M Petit, TNO2006, Catania. July 03-07, 2006

A new large separation binary

J-M Petit, TNO2006, Catania. July 03-07, 2006

A new large separation binary

J-M Petit, TNO2006, Catania. July 03-07, 2006

Luminosity Function of 2003 objects

J-M Petit, TNO2006, Catania. July 03-07, 2006

● More quantitative results will appear in the coming paper presenting the 2003 data release of CFEPS

● Stay tuned !