SIMBAD references

1999A&A...350..875J - Astronomy and Astrophysics, volume 350, 875-882 (1999/10-3)

A very cold disc of dust around the G0V star HD 207129.

JOURDAIN DE MUIZON M., LAUREIJS R.J., DOMINIK C., HABING H.J., METCALFE L., SIEBENMORGEN R., KESSLER M.F., BOUCHET P., SALAMA A., LEECH K., TRAMS N. and HESKE A.

Abstract (from CDS):

We present ISO observations made between 2.5 and 180µm of the nearby G0V dwarf HD 207129 taken as part of a large survey of nearby main-sequence stars in search of debris discs. HD 207129 emits radiation in excess of the photospheric flux density between at least 60 and 180µm. The infrared excess is explained by a disc of cold dust particles (25 to 50K) and, to account for the absence of a significant 25µm excess, the disc must have a central hole of several 100AU radius. We discuss various models and show how the disc will evolve in time under the influence of radiation pressure and Poynting-Robertson drift. The presence of the large hole suggests that HD 207129 has at least one planet.

Abstract Copyright:

Journal keyword(s): stars: general - stars: individual: HD 207129 - stars: planetary systems - infrared: stars

Simbad objects: 3

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2019.12.10-06:51:59

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