scholarly journals Tabletop mid-infrared nulling testbed for the Keck interferometer and the Terrestrial Planet Finder

2003 ◽  
Author(s):  
Christopher D. Koresko ◽  
Bertrand P. Mennesson ◽  
Samuel L. Crawford ◽  
Michelle J. Creech-Eakman ◽  
J. Kent Wallace ◽  
...  
Keyword(s):  
Terrestrial Planet ◽  
Mid Infrared ◽  
Terrestrial Planet Finder

Mid-infrared nuller for Terrestrial Planet Finder: design, progress, and results

2003 ◽  
Author(s):  
Stefan R. Martin ◽  
Robert O. Gappinger ◽  
Frank M. Loya ◽  
Bertrand P. Mennesson ◽  
Samuel L. Crawford ◽  
...  
Keyword(s):  
Terrestrial Planet ◽  
Mid Infrared ◽  
Terrestrial Planet Finder

scholarly journals IPHAS A-type Stars with Mid-IR Excesses in Spitzer Surveys

2009 ◽  
Vol 5 (H15) ◽  
pp. 815-815
Author(s):  
Antonio S. Hales ◽  
Michael J. Barlow ◽  
Janet E. Drew ◽  
Yvonne C. Unruh ◽  
Robert Greimel ◽  
...  
Keyword(s):  
Cross Correlation ◽  
Main Sequence ◽  
Terrestrial Planet ◽  
Circumstellar Disks ◽  
Main Sequence Stars ◽  
Intermediate Mass ◽  
Mid Infrared ◽  
Isaac Newton ◽  
Intermediate Mass Stars ◽  
Dust Disks

AbstractThe Isaac Newton Photometric H-Alpha Survey (IPHAS) provides (r′-Hα)-(r′-i′) colors, which can be used to select AV0-5 Main Sequence star candidates (age~20-200 Myr). By combining a sample of 23050 IPHAS-selected A-type stars with 2MASS, GLIMPSE and MIPSGAL photometry we searched for mid-infrared excesses attributable to dusty circumstellar disks. Positional cross-correlation yielded a sample of 2692 A-type stars, of which 0.6% were found to have 8-μm excesses above the expected photospheric values. The low fraction of main sequence stars with mid-IR excesses found in this work indicates that dust disks in the terrestrial planet zone of Main Sequence intermediate mass stars are rare. Dissipation mechanisms such as photo-evaporation, grain growth, collisional grinding or planet formation could possibly explain the depletion of dust detected in the inner regions of these disks.

Outline of an optical design for Terrestrial Planet Finder

1998 ◽  
Author(s):  
Charley Noecker ◽  
Brian K. McComas ◽  
Greg A. Kopp
Keyword(s):  
Optical Design ◽  
Terrestrial Planet ◽  
Terrestrial Planet Finder
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