2011A&A...529A.117M


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.19CET07:45:03

2011A&A...529A.117M - Astronomy and Astrophysics, volume 529A, 117-117 (2011/5-1)

A Herschel resolved far-infrared dust ring around HD 207129.

MARSHALL J.P., LOEHNE T., MONTESINOS B., KRIVOV A.V., EIROA C., ABSIL O., BRYDEN G., MALDONADO J., MORA A., SANZ-FORCADA J., ARDILA D., AUGEREAU J.-C., BAYO A., DEL BURGO C., DANCHI W., ERTEL S., FEDELE D., FRIDLUND M., LEBRETON J., GONZALEZ-GARCIA B.M., LISEAU R., MEEUS G., MUELLER S., PILBRATT G.L., ROBERGE A., STAPELFELDT K., THEBAULT P., WHITE G.J. and WOLF S.

Abstract (from CDS):

Dusty debris discs around main sequence stars are thought to be the result of continuous collisional grinding of planetesimals in the system. The majority of these systems are unresolved and analysis of the dust properties is limited by the lack of information regarding the dust location. The Herschel DUNES key program is observing 133 nearby, Sun-like stars (<20pc, FGK spectral type) in a volume limited survey to constrain the absolute incidence of cold dust around these stars by detection of far infrared excess emission at flux levels comparable to the Edgeworth-Kuiper belt (EKB).We have observed the Sun-like star HD 207129 with Herschel PACS and SPIRE. In all three PACS bands we resolve a ring-like structure consistent with scattered light observations. Using α Booetis as a reference point spread function (PSF), we deconvolved the images, clearly resolving the inner gap in the disc at both 70 and 100µm.We have resolved the dust-producing planetesimal belt of a debris disc at 100µm for the first time. We measure the radial profile and fractional luminosity of the disc, and compare the values to those of discs around stars of similar age and/or spectral type, placing this disc in context of other resolved discs observed by Herschel/DUNES.

Abstract Copyright:

Journal keyword(s): stars: individual: HD 207129 - circumstellar matter - infrared: stars

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * q01 Eri PM* 01 42 29.3148822519 -53 44 26.991165270   6.05 5.52     F9V 261 1
2 * zet02 Ret PM* 03 18 12.8185412558 -62 30 22.917300282   5.84 5.24     G1V 320 0
3 HD 107146 PM* 12 19 06.5022221429 +16 32 53.870713669   7.61   6.7   G2V 212 0
4 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2473 0
5 HD 207129 PM* 21 48 15.7510673466 -47 18 13.020109072   6.18 5.58     G2V 282 0
6 * alf PsA ** 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1101 3

    Equat.    Gal    SGal    Ecl

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2019.11.19-07:45:03

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