RT Journal Article
T1 Cold DUst around NEarby Stars (DUNES). First results. A resolved exo-Kuiper belt around the solar-like star ζ2 Ret
A1 Eiroa, Carlos
A1 Montes Gutiérrez, David
A1 Wolf, Sebastian
AB 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.
PB EDP Sciencies
SN 0004-6361
YR 2010
FD 2010
LK https://hdl.handle.net/20.500.14352/45059
UL https://hdl.handle.net/20.500.14352/45059
LA eng
NO © ESO, 2010. Artículo firmado por 49 autores.
DS Docta Complutense
RD 11 may 2025