LETGS: instrument status and science highlights

Mariano Mendez

doi:10.1117/12.461544

11 March 2003 LETGS: instrument status and science highlights

Mariano Mendez

Proceedings Volume 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy; (2003) https://doi.org/10.1117/12.461544
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The Chandra X-ray Observatory carries two transmission gratings on-board, each of them optimized for high- and low-energy photons, respectively. Each grating can be put in the beam behind Chandra's High-Resolution Mirror Assembly (HRMA); the photons collected with the HRMA and dispersed by the gratings are then collected by one of two imaging detectors located at the focal of the telescope. The Low-Energy Transmission Grating Spectrometer, LETGS, is sensitive in the range ~2 - 170 Angstroms, and is a powerful tool to study hot plasmas in a variety of astrophysical environments, from stellar coronae to clusters of galaxies. Here we report on the status of this instrument, and we describe some of the scientific results obtained with it.

Citation Download Citation

Mariano Mendez "LETGS: instrument status and science highlights", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); https://doi.org/10.1117/12.461544

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available