Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/institute/conference/hsl/Beckwith.PDF Дата изменения: Tue Apr 11 00:17:19 2006 Дата индексирования: Sat Dec 22 13:28:34 2007 Кодировка: Поисковые слова: universe

The local universe
Emergence & the Next BIG THING(s)
Steven Beckwith STScI Chicago, April 5, 2002


Intellectual trends
n

Uncover ("discover") the unseen
u u u

Catalog the Adduce the Understand

universe physical laws the reason for it all

n

Local to the distant, minor to major components
u u

Solar system Milky Way galaxies recombination Planets Stars Galaxies Structure How & why do planets form? What do they look like? What makes planets evolve into habitable worlds

n

"Local" questions
u u u

The quest for distance drove us to large light buckets The need for resolution & dynamic range drives to large apertures in space.


10m optical coronagraph D.R. > 1010

Terrestrial exoplanets

Exploration

10m optical ~/D CS disks & rings Exozody clouds 10m optical coronagraph Giant exoplanets Young exoplanets ~10m optical light bucket Census of exoplanets Exoplanet atmospheres

Stellar winds TTS in LMC Binary stars Stellar pops IGM Baryons Microlensing (z) (e2/hc)

Disk chemistry H2 spectra of disks Disk structure, gaps, rings ~4m UV spectra ~ /D

Atmospheres of SS planets Occultation of stars Composition of bodies Ring dynamics

x ~ 4 km ~4m UV ~10m Optical


Walk before you run (Angel, this conference)
Exploration Space-based lasers

Interferograms
Killer Ap

L1

Earth
10

L2

Optical coronagraph D.R. > 10 Beautiful pictures

Optical coronagraph D.R. > 10 Optical resolution: ~/D

8

Planetary images Deep field images Nebulae, clouds Exo-planet images

Optical light bucket UV spectral light bucket

Heritage Engineering challenge Military/industry interests


Irrational exuberance
MCAO w/ n x LGS

-

/D with < 1 µm dynamic range faint fuzzy things sky coverage wide fields photo stabilty

The biggest optical systems will eventually be in space.
10 kg m-2 1 kg m-2


Emergent phenomena
n

Life is an emergent phenomenon
u u

n

Intelligence is an emergent phenomenon
u u

Self -reproduction arose from inorganic elements The vector of life has increased complexity Intelligence appears to be a new property It took a long time and many accidents to emerge

n

Life, intelligence & emergent phenomena are the new fundamental questions
u u

Shift in emphasis to the microscopic, rare constituents of the universe Stretch our view from the Solar System to local star systems and the solar neighborhood: the new frontier

naysayers, conservatives, realists, optimists, visionaries