Cold DUst around NEarby Stars (DUNES). First results A resolved exo-Kuiper belt around the solar-like star zeta(2) Ret
Artikel i vetenskaplig tidskrift, 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).

main-sequence stars

debris disks

space vehicles: instruments

planets

stars: general

planetary system

Författare

C. Eiroa

Universidad Autonoma de Madrid (UAM)

D. Fedele

Max Planck-institutet

Johns Hopkins University

Universidad Autonoma de Madrid (UAM)

J. Maldonado

Universidad Autonoma de Madrid (UAM)

B. M. Gonzalez-Garcia

European Space Astronomy Centre (ESA)

J. Rodmann

ESTEC

A. Heras

ESTEC/SRE-SA

G.L. Pilbratt

ESTEC/SRE-SA

J. C. Augereau

Université Grenoble Alpes

A. Mora

European Space Astronomy Centre (ESA)

Universidad Autonoma de Madrid (UAM)

B. Montesinos

European Space Astronomy Centre (ESA)

D. R. Ardila

CalTech

G. Bryden

Jet Propulsion Laboratory, California Institute of Technology

René Liseau

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

K. R. Stapelfeldt

Jet Propulsion Laboratory, California Institute of Technology

R. Launhardt

Max Planck-institutet

E. Solano

European Space Astronomy Centre (ESA)

A. Bayo

European Space Observatory

O. Absil

Universite de Liège

M. Arevalo

European Space Astronomy Centre (ESA)

D. Barrado

European Space Astronomy Centre (ESA)

C. Beichmann

CalTech

W. Danchi

NASA Goddard Space Flight Center

C. del Burgo

UNINOVA-CA3

S. Ertel

Christian-Albrechts-Universität zu Kiel

M. Fridlund

ESTEC/SRE-SA

M. Fukagawa

Nagoya University

R. Gutierrez

European Space Astronomy Centre (ESA)

E. Grun

Max Planck-institutet

I. Kamp

Rijksuniversiteit Groningen

A. Krivov

Friedrich-Schiller-Universität Jena

J. Lebreton

Université Grenoble Alpes

T. Lohne

Friedrich-Schiller-Universität Jena

R. Lorente

European Space Astronomy Centre (ESA)

J. Marshall

Open University

R. Martinez-Arnaiz

Universidad Complutense de Madrid

G. Meeus

Universidad Autonoma de Madrid (UAM)

D. Montes

Universidad Complutense de Madrid

A. Morbidelli

Observatoire de la Cote d'Azur

S. Muller

Friedrich-Schiller-Universität Jena

H. Mutschke

Friedrich-Schiller-Universität Jena

T. Nakagawa

JAXA Institute of Space and Astronautical Science

G. Olofsson

Stockholms universitet

I. Ribas

Universitat Autonoma de Barcelona (UAB)

A. Roberge

NASA Goddard Space Flight Center

J. Sanz-Forcada

European Space Astronomy Centre (ESA)

P. Thebault

GEPI - Galaxies, Etoiles, Physique, Instrumentation

H. Walker

Rutherford Appleton Laboratory

G. J. White

Rutherford Appleton Laboratory

Open University

S. Wolf

Christian-Albrechts-Universität zu Kiel

Astronomy and Astrophysics

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

Vol. 518 Article Number: L131 L131

Ämneskategorier

Astronomi, astrofysik och kosmologi

DOI

10.1051/0004-6361/201014594

Mer information

Senast uppdaterat

2018-05-14