SIMBAD references

2006ApJ...636.1098B - Astrophys. J., 636, 1098-1113 (2006/January-2)

Frequency of debris disks around solar-type stars: first results from a Spitzer MIPS survey.

BRYDEN G., BEICHMAN C.A., TRILLING D.E., RIEKE G.H., HOLMES E.K., LAWLER S.M., STAPELFELDT K.R., WERNER M.W., GAUTIER T.N., BLAYLOCK M., GORDON K.D., STANSBERRY J.A. and SU K.Y.L.

Abstract (from CDS):

We have searched for infrared excesses around a well-defined sample of 69 FGK main-sequence field stars. These stars were selected without regard to their age, metallicity, or any previous detection of IR excess; they have a median age of ∼4 Gyr. We have detected 70 µm excesses around seven stars at the 3 σ confidence level. This extra emission is produced by cool material (<100 K) located beyond 10 AU, well outside the ``habitable zones'' of these systems and consistent with the presence of Kuiper Belt analogs with ∼100 times more emitting surface area than in our own planetary system. Only one star, HD 69830, shows excess emission at 24 µm, corresponding to dust with temperatures ≳300 K located inside of 1 AU. While debris disks with Ldust/L*≥10–3 are rare around old FGK stars, we find that the disk frequency increases from 2%±2% for Ldust/L*≥10–4 to 12%±5% for Ldust/L*≥10–5. This trend in the disk luminosity distribution is consistent with the estimated dust in our solar system being within an order of magnitude greater or less than the typical level around similar nearby stars. Although there is no correlation of IR excess with metallicity or spectral type, there is a weak correlation with stellar age, with stars younger than a gigayear more likely to have excess emission.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - Infrared: Stars - Kuiper Belt–planetary systems: formation

VizieR on-line data: <Available at CDS (J/ApJ/636/1098): table1.dat refs.dat table2.dat>

Simbad objects: 135

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2006ApJ...636.1098B and select 'bookmark this link' or equivalent in the popup menu


2019.09.16-05:03:57

© Université de Strasbourg/CNRS

    • Contact