Cold DUst around NEarby Stars (DUNES). First results A resolved exo-Kuiper belt around the solar-like star zeta(2) Ret
Journal article, 2010

We present the first far-IR observations of the solar-type stars delta Pav, HR 8501, 51 Peg and zeta(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 mu m fluxes from delta Pav, HR 8501, and 51 Peg agree with the predicted photospheric fluxes, excluding debris disks brighter than L-dust/L-star similar to 5 x 10(-7) (1 sigma level) around those stars. A flattened, disk-like structure with a semi-major axis of similar to 100 AU in size is detected around zeta(2) Ret. The resolved structure suggests the presence of an eccentric dust ring, which we interpret as an exo-Kuiper belt with L-dust/L-star approximate to 10(-5).

planetary system

debris disks

stars: general

main-sequence stars

planets

space vehicles: instruments

Author

C. Eiroa

Universidad Autonoma de Madrid (UAM)

D. Fedele

Max Planck Society

Universidad Autonoma de Madrid (UAM)

Johns Hopkins University

J. Maldonado

Universidad Autonoma de Madrid (UAM)

B. M. Gonzalez-Garcia

European Space Agency (ESA)

J. Rodmann

European Space Agency (ESA)

A. Heras

European Space Agency (ESA)

G.L. Pilbratt

European Space Agency (ESA)

J. C. Augereau

Grenoble Alpes University

A. Mora

Universidad Autonoma de Madrid (UAM)

European Space Agency (ESA)

B. Montesinos

European Space Agency (ESA)

D. R. Ardila

California Institute of Technology (Caltech)

G. Bryden

California Institute of Technology (Caltech)

René Liseau

Chalmers, Earth and Space Sciences, Radio Astronomy and Astrophysics

K. R. Stapelfeldt

California Institute of Technology (Caltech)

R. Launhardt

Max Planck Society

E. Solano

European Space Agency (ESA)

A. Bayo

European Space Observatory

O. Absil

University of Liège

M. Arevalo

European Space Agency (ESA)

D. Barrado

European Space Agency (ESA)

C. Beichmann

California Institute of Technology (Caltech)

W. Danchi

National Aeronautics and Space Administration (NASA)

C. del Burgo

UNINOVA-CA3

S. Ertel

University of Kiel

M. Fridlund

European Space Agency (ESA)

M. Fukagawa

Nagoya University

R. Gutierrez

European Space Agency (ESA)

E. Grun

Max Planck Society

I. Kamp

University of Groningen

A. Krivov

Friedrich Schiller University Jena

J. Lebreton

Grenoble Alpes University

T. Lohne

Friedrich Schiller University Jena

R. Lorente

European Space Agency (ESA)

J. Marshall

Open University

R. Martinez-Arnaiz

Complutense University

G. Meeus

Universidad Autonoma de Madrid (UAM)

D. Montes

Complutense University

A. Morbidelli

Observatoire de la Cote d'Azur

S. Muller

Friedrich Schiller University Jena

H. Mutschke

Friedrich Schiller University Jena

T. Nakagawa

JAXA Institute of Space and Astronautical Science

G. Olofsson

Stockholm University

I. Ribas

Universitat Autonoma de Barcelona (UAB)

A. Roberge

National Aeronautics and Space Administration (NASA)

J. Sanz-Forcada

European Space Agency (ESA)

P. Thebault

Observatoire de Paris-Meudon

H. Walker

STFC Rutherford Appleton Laboratory

G. J. White

Open University

STFC Rutherford Appleton Laboratory

S. Wolf

University of Kiel

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 518 Article Number: L131 L131

Subject Categories (SSIF 2011)

Astronomy, Astrophysics and Cosmology

DOI

10.1051/0004-6361/201014594

More information

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4/23/2025