Publication: Cold DUst around NEarby Stars (DUNES). First results. A resolved exo-Kuiper belt around the solar-like star ζ2 Ret
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2010-07
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We present the first far-IR observations of the solar-type stars δ Pav, HR 8501, 51 Peg and ζ^2 Ret, taken within the context of the DUNES Herschel open time key programme (OTKP). This project uses the PACS and SPIRE instruments with the objective of studying infrared excesses due to exo-Kuiper belts around nearby solar-type stars. The observed 100 μm fluxes from δ Pav, HR 8501, and 51 Peg agree with the predicted photospheric fluxes, excluding debris disks brighter than L_dust/L_* ~ 5 x 10^-7 (1σ level) around those stars. A flattened, disk-like structure with a semi-major axis of ~100 AU in size is detected around ζ2 Ret. The resolved structure suggests the presence of an eccentric dust ring, which we interpret as an exo-Kuiper belt with L_dust/L_* ≈ 10^-5.
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© ESO, 2010. Artículo firmado por 49 autores.
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Aumann, H. H., Beichman, C. A., Gillett, F. C., et al. 1984, ApJ, 278, L23
Backman, D. E., & Paresce, F. 1993, in Protostars and Planets III, ed. E. H. Levy, & J. I. Lunine (Tucson: Univ. Arizona Press), 1253
Beichman, C. A., Bryden, G., Stapelfeldt, K. R., et al. 2006, ApJ, 652, 1674
Brott, I., & Hauschildt, P. H. 2005, ESA SP-576, C. Turon, ed. K. S. O’Flaherty, & M. A. C. Perryman, 565
Bryden, G., Beichman, C. A., Carpenter, J. M., et al. 2009, ApJ, 705, 1226
Dole, H., Le Floc’h, E., Pérez González, P. G., et al. 2004, ApJS, 154, 87
Decin, G., Dominik, C., Waters, L. B. F. M., & Waelkens, C. 2003, ApJ, 598, 636
Griffin, M. J., et al. 2010, A&A, 518, L3
Habing, H. J., Dominik, C., Jourdain de Muizon, M., et al. 2001, A&A 365, 545
Hines, D. C., Schneider, G., Hollenbach, D., et al. 2007, ApJ, 671, L165
Kalas, P., Graham, J. R., Chiang, E., et al. 2008, Science, 322, 1345
Liseau, R., et al. 2010, A&A, 518, L132
Matthews, B., et al. 2010, A&A, 518, L135
Pilbratt, G. L., et al. 2010, A&A, 518, L1
Poglitsch, A., et al. 2010, A&A, 518, L2
Stapelfeldt, K. R., Holmes, E. K., Chen, C., et al. 2004, ApJS, 154, 458
Stern, S. A. 1996, A&A, 310, 999
Su, K. Y. L., Rieke, G. H., Stansberry, J. A., et al. 2006, ApJ, 653, 675
Trilling, D. E., Bryden, G., Beichman, C. A., et al. 2008, ApJ, 674, 1086
Wyatt, M. C., Dermott, S. F., Telesco, C. M., et al. 1999, ApJ, 527, 918