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SAO stars with infrared excess in the IRAS Point Source Catalog
We have undertaken a search for SAO stars with infrared excess in theIRAS Point Source Catalog. In contrast to previous searches, the entireIRAS (12)-(25)-(60) color-color diagram was used. This selection yieldeda sample of 462 stars, of which a significant number are stars withcircumstellar material. The stars selected can be identified aspre-main-sequence stars, Be stars, protoplanetary systems, post-AGBstars, etc. A number of objects are (visual) binary stars.Characteristic temperatures and IR excesses are calculated and theirrelations to spectral type are investigated.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Herkul |
| Sað Açýklýk: | 18h49m07.38s |
| Yükselim: | +13°12'54.2" |
| Görünürdeki Parlaklýk: | 8.801 |
| özdevim Sað Açýklýk: | 0.7 |
| özdevim Yükselim: | -6.5 |
| B-T magnitude: | 9.134 |
| V-T magnitude: | 8.829 |
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