A molecular Einstein ring: Imaging a starburst disk surrounding a quasi-stellar object

被引：40

作者：

Carilli, CL

Lewis, GF

Djorgovski, SG

Mahabal, A

Cox, P

Bertoldi, F

Omont, A

机构：

[1] Natl Radio Astron Observ, Socorro, NM 87801 USA

[2] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[3] CALTECH, Dept Astron, Pasadena, CA 91125 USA

[4] Univ Paris 11, Inst Astrophys Spatiale, F-91405 Orsay, France

[5] Max Planck Inst Radioastron, D-53121 Bonn, Germany

[6] CNRS, Inst Astrophys Paris, F-75014 Paris, France

来源：

SCIENCE | 2003年 / 300卷 / 5620期

关键词：

D O I：

10.1126/science.1082600

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Images of the molecular CO 2-1 line emission and the radio continuum emission from the redshift 4.12 gravitationally lensed quasi-stellar object (QSO) PSS J2322 + 1944 reveal an Einstein ring with a diameter of 1.5". These observations are modeled as a star-forming disk surrounding the QSO nucleus with a radius of 2 kiloparsecs. The implied massive star formation rate is 900 solar masses per year. At this rate, a substantial fraction of the stars in a large elliptical galaxy could form on a dynamical time scale of 10(8) years. The observation of active star formation in the host galaxy of a high-redshift QSO supports the hypothesis of coeval formation of supermassive black holes and stars in spheroidal galaxies.

引用

页码：773 / 775

页数：3

共 20 条

[1] THE RELATIONSHIP BETWEEN THE CARBON-MONOXIDE INTENSITY AND THE RADIO-CONTINUUM EMISSION IN SPIRAL GALAXIES [J].