Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 427, Issue 1, Pages 343-357Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2012.21873.x
Keywords
circumstellar matter; stars: fundamental parameters; Hertzsprung-Russell and colour-magnitude diagrams; stars: mass-loss; solar neighbourhood; infrared: stars
Categories
Funding
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy
- European Commission [CT920791, CT940627]
- INSU
- MEN
- CNRS in France
- State of Baden-Wurttemberg in Germany
- DGICYT in Spain
- CNR in Italy
- FFwFBWF in Austria
- FAPESP in Brazil
- OTKA in Hungary [F-4239, F-013990]
- ESO CEE [A-04-046]
- National Aeronautics and Space Administration
- Ballistic Missile Defense Organization
- NASA Office of Space Science
- Science and Technology Facilities Council [ST/I001425/1] Funding Source: researchfish
- STFC [ST/I001425/1] Funding Source: UKRI
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We derive the fundamental parameters (temperature and luminosity) of 107 619 Hipparcos stars and place these stars on a true HertzsprungRussell diagram. This is achieved by comparing bt-settl model atmospheres to spectral energy distributions (SEDs) created from Hipparcos, Tycho, Sloan Digital Sky Survey, DENIS, Two Micron All Sky Survey, MSX, AKARI, IRAS and Wide-field Infrared Survey Explorer data. We also identify and quantify from these SEDs any infrared excesses attributable to circumstellar matter. We compare our results to known types of objects, focusing on the giant branch stars. Giant star dust production (as traced by infrared excess) is found to start in earnest around 680 L-circle dot.
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