Spectra and diagnostics for the direct detection of wide-separation extrasolar giant planets

被引：91

作者：

Burrows, A

Sudarsky, D

Hubeny, I

机构：

[1] Univ Arizona, Dept Astron, Tucson, AZ 85721 USA

[2] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[3] Natl Opt Astron Observ, Tucson, AZ 85726 USA

[4] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA

[5] Kavli Inst Theoret Phys, Santa Barbara, CA USA

来源：

ASTROPHYSICAL JOURNAL | 2004年 / 609卷 / 01期

关键词：

binaries : general; molecular processes; planetary systems; planets and satellites : general; radiative transfer; stars; low-mass; brown dwarfs;

D O I：

10.1086/420974

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate as a function of orbital distance, mass, and age the theoretical spectra and orbit-averaged planet/star flux ratios for representative wide-separation extrasolar giant planets (EGPs) in the optical, near-infrared, and mid-infrared. Stellar irradiation of the planet's atmosphere and the effects of water and ammonia clouds are incorporated and handled in a consistent fashion. We include predictions for 12 specific known EGPs. In the process, we derive physical diagnostics that can inform the direct EGP detection and remote sensing programs now being planned or proposed. Furthermore, we calculate the effects of irradiation on the spectra of a representative companion brown dwarf as a function of orbital distance.

引用

页码：407 / 416

页数：10

共 62 条

[1]

Akeson R, 2000, ASTR SOC P, V212, P300

[2] Differential phase technique with the Keck Interferometer [J].