12CO emission from the Red Rectangle

被引：0

作者：

Pham Tuan Anh ^{[1
]}

Pham Ngoc Diep ^{[1
]}

Do Thi Hoai ^{[1
]}

Pham Tuyet Nhung ^{[1
]}

Nguyen Thi Phuong ^{[1
]}

Nguyen Thi Thao ^{[1
]}

Pierre Darriulat ^{[1
]}

机构：

[1] Department of Astrophysics,Vietnam National Satellite Center,VAST

来源：

ResearchinAstronomyandAstrophysics | 2015年 / 15卷 / 12期

关键词：

stars:AGB and post-AGB; circumstellar matter; radio-lines:stars; planetary nebulae:individual(Red Rectangle);

D O I：

暂无

中图分类号：

P152 [恒星天文学、星系天文学]; P144 [恒星物理学];

学科分类号：

070401 ;

摘要：

Observations of an unprecedented quality made by ALMA on the Red Rectangle of CO(3–2)and CO(6–5)emissions are analysed jointly with the aim of obtaining as simple as possible a description of the gas morphology and kinematics.Evidence is found for polar conical outflows and for a broad equatorial torus in rotation and expansion.Simple models of both are proposed.Comparing CO(6–5)and CO(3–2)emissions provides evidence for a strong temperature enhancement over the polar outflows.Continuum emission(dust)is seen to be enhanced in the equatorial region.Observed asymmetries are briefly discussed.

引用

页码：2213 / 2228

页数：16