SIMBAD references

2010ApJ...716..417H - Astrophys. J., 716, 417-426 (2010/June-2)

Thermal infrared MMTAO observations of the HR 8799 planetary system.

HINZ P.M., RODIGAS T.J., KENWORTHY M.A., SIVANANDAM S., HEINZE A.N., MAMAJEK E.E. and MEYER M.R.

Abstract (from CDS):

We present direct imaging observations at wavelengths of 3.3, 3.8 (L' band), and 4.8 (M band) µm, for the planetary system surrounding HR 8799. All three planets are detected at L'. The c and d components are detected at 3.3 µm, and upper limits are derived from the M-band observations. These observations provide useful constraints on warm giant planet atmospheres. We discuss the current age constraints on the HR 8799 system and show that several potential co-eval objects can be excluded from being co-moving with the star. Comparison of the photometry is made to models for giant planet atmospheres. Models that include non-equilibrium chemistry provide a reasonable match to the colors of c and d. From the observed colors in the thermal infrared, we estimate Teff< 960 K for b and Teff= 1300 and 1170 K for c and d, respectively. This provides an independent check on the effective temperatures and thus masses of the objects from the Marois et al. results.

Abstract Copyright:

Journal keyword(s): instrumentation: adaptive optics - planets and satellites: atmospheres

Simbad objects: 18

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2010ApJ...716..417H and select 'bookmark this link' or equivalent in the popup menu


2019.09.23-23:02:09

© Université de Strasbourg/CNRS

    • Contact