KECK HIRES spectroscopy of APM 08279+5255

被引：45

作者：

Ellison, SL

Lewis, GF

Pettini, M

Sargent, WLW

Chaffee, FH

Foltz, CB

Rauch, M

Irwin, MJ

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[2] Univ Washington, Dept Astron, Seattle, WA 98195 USA

[3] CALTECH, Palomar Observ, Pasadena, CA 91125 USA

[4] WM Keck Observ, Kamuela, HI 96743 USA

[5] Univ Arizona, Multiple Mirror Telescope Observ, Tucson, AZ 85721 USA

[6] European So Observ, D-85748 Garching, Germany

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1999年 / 111卷 / 762期

关键词：

D O I：

10.1086/316414

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

With an optical R-band magnitude of 15.2, the recently discovered z = 3.911 broad absorption line quasar APM 08279+5255 is an exceptionally bright high-redshift source. Its brightness has allowed us to acquire a high signal-to-noise ratio (similar to 80), high-resolution (similar to 6 km s(-1)) spectrum using the HIRES echelle spectrograph on the 10 m Keck I telescope. Given the quality of the data, these observations provide an unprecedented view of associated and intervening absorption systems. Here we announce the availability of this spectrum to the general astronomical community and present a brief analysis of some of its main features.

引用

页码：946 / 953

页数：8

共 19 条

[1] Evolution of structure in the intergalactic medium and the nature of the LY alpha forest [J].