Nasa Observatory
Páginas: 4 (873 palabras)
Publicado: 16 de abril de 2012
Spitzer
Chandra
NASA’s Great Observatories
“an astronomical Mount Rushmore”
Compton
Hubble
Gains in orbit
•
•
•
•
No atmospheric blurring
Wider accessible wavelength rangeInstrumental stability
No clouds/daylight (timing)
HUBBLE
Past
…future?
Some HST Science highlights
• Structures of distant galaxies
Some HST Science highlights
• Structures ofdistant galaxies
• Hubble constant from Cepheid variable stars
Some HST Science highlights
• Structures of distant galaxies
• Hubble constant from Cepheid variable stars
• Black holes in (almostall) galactic nuclei
Some HST Science highlights
•
•
•
•
Structures of distant galaxies
Hubble constant from Cepheid variable stars
Black holes in (almost all) galactic nucleiProtoplanetary material near young stars
Some HST Science highlights
•
•
•
•
•
Structures of distant galaxies
Hubble constant from Cepheid variable stars
Black holes in (almost all) galactic nucleiProtoplanetary material near young stars
Gravitational lenses
Some HST Science highlights
•
•
•
•
•
•
•
Structures of distant galaxies
Hubble constant from Cepheid variable starsBlack holes in (almost all) galactic nuclei
Protoplanetary material near young stars
Gravitational lenses
Intergalactic gas and its history
Stuff scattered all the way through the textbooks Supernova progenitor in M51
(Li et al. in press)
Gravitational
microlensing
in NGC 3314
Instrument history
1990:
1993:
1997:
2002:
FGS HSP
FOS
GHRS FOC WF/PC
FGS CoSTAR FOS
GHRSFOC WFPC2
FGS CoSTAR NICMOS STIS FOC WFPC2
FGS CoSTAR NICMOS STIS ACS WFPC2
200? COS, WFC3
Hubble status, August 2005
• Space Telescope Imaging Spectrograph dead
(only high-res/small-regionspectrometer)
• 3 of 6 gyros (RSUs) functional (3 normally needed, 2gyro mode successful in tests)
• Battery capacity decreasing (will be useless circa 2010)
• Estimated 50% failure time on...
Chandra
NASA’s Great Observatories
“an astronomical Mount Rushmore”
Compton
Hubble
Gains in orbit
•
•
•
•
No atmospheric blurring
Wider accessible wavelength rangeInstrumental stability
No clouds/daylight (timing)
HUBBLE
Past
…future?
Some HST Science highlights
• Structures of distant galaxies
Some HST Science highlights
• Structures ofdistant galaxies
• Hubble constant from Cepheid variable stars
Some HST Science highlights
• Structures of distant galaxies
• Hubble constant from Cepheid variable stars
• Black holes in (almostall) galactic nuclei
Some HST Science highlights
•
•
•
•
Structures of distant galaxies
Hubble constant from Cepheid variable stars
Black holes in (almost all) galactic nucleiProtoplanetary material near young stars
Some HST Science highlights
•
•
•
•
•
Structures of distant galaxies
Hubble constant from Cepheid variable stars
Black holes in (almost all) galactic nucleiProtoplanetary material near young stars
Gravitational lenses
Some HST Science highlights
•
•
•
•
•
•
•
Structures of distant galaxies
Hubble constant from Cepheid variable starsBlack holes in (almost all) galactic nuclei
Protoplanetary material near young stars
Gravitational lenses
Intergalactic gas and its history
Stuff scattered all the way through the textbooks Supernova progenitor in M51
(Li et al. in press)
Gravitational
microlensing
in NGC 3314
Instrument history
1990:
1993:
1997:
2002:
FGS HSP
FOS
GHRS FOC WF/PC
FGS CoSTAR FOS
GHRSFOC WFPC2
FGS CoSTAR NICMOS STIS FOC WFPC2
FGS CoSTAR NICMOS STIS ACS WFPC2
200? COS, WFC3
Hubble status, August 2005
• Space Telescope Imaging Spectrograph dead
(only high-res/small-regionspectrometer)
• 3 of 6 gyros (RSUs) functional (3 normally needed, 2gyro mode successful in tests)
• Battery capacity decreasing (will be useless circa 2010)
• Estimated 50% failure time on...
Leer documento completo
Regístrate para leer el documento completo.