Performance overview and science goals of the Cosmic Origins Spectrograph for the Hubble Space Telescope

被引：26

作者：

Morse, JA ^{[1
]}

Green, JC ^{[1
]}

Ebbets, D ^{[1
]}

Andrews, J ^{[1
]}

Heap, SR ^{[1
]}

Leitherer, C ^{[1
]}

Linsky, J ^{[1
]}

Savage, BD ^{[1
]}

Shull, JM ^{[1
]}

Snow, TP ^{[1
]}

Stern, SA ^{[1
]}

Siegmund, O ^{[1
]}

Stocke, JT ^{[1
]}

Wilkinson, E ^{[1
]}

机构：

[1] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA

来源：

SPACE TELESCOPES AND INSTRUMENTS V, PTS 1-2 | 1998年 / 3356卷

关键词：

ultraviolet spectroscopy; Hubble Space Telescope; QSO absorption line systems; interstellar medium; planetary atmospheres;

D O I：

10.1117/12.324537

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an overview of the expected performance and science goals of the Cosmic Origins Spectrograph (COS), a fourth generation instrument to be installed aboard the Hubble Space Telescope during the fourth (and final) HST servicing mission scheduled for late 2002. COS is an ultraviolet spectrograph optimized for observing faint point sources with moderate spectral resolution (R greater than or equal to 20, 000). The instrument has two channels: a Far-Ultraviolet channel that is sensitive in the 1150 - 1775 Angstrom wavelength range and a Near-Ultraviolet channel that operates between 1750 - 3200 Angstrom. The COS Science Team program concentrates on QSO absorption line systems and the IGM, dynamics of the ISM in galaxies and galaxy halos, UV extinction in the Milky Way, horizontal-branch stars in globular clusters, and volatile gases in the atmospheres of Solar System bodies.

引用

页码：361 / 368

页数：8

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