First Flight of the EUV Snapshot Imaging Spectrograph
Abstract
The solar atmosphere is highly dynamic and morphologically complex. Solar transient phenomena such as flares, eruptions, and explosive events evolve on time scales too fast to be covered effectively by slit spectrograph rasters. The EUV Snapshot Imaging Spectrograph (ESIS) is a new suborbital rocket-borne slitless spectrograph that collects four simultaneous images (expandable to six), each formed by a grating with its dispersion oriented at a different angle. The purpose of this arrangement is to collect enough data in a single exposure to infer spectral line profiles across a large, 2D field of view. We report on the first flight of ESIS, observing O V (63.0 nm) and Mg X (61.0, 62.5 nm) for about five minutes during solar minimum. Also included in the rocket experiment for its third flight is the Multi-Order Solar EUV Spectrograph (MOSES), the predecessor of ESIS. In its current configuration, MOSES images Ne VII (46.5 nm) in three spectral orders from a single objective grating. We present the combined observations from MOSES and ESIS, covering the solar atmosphere from transition region to corona.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMSH33A..05K
- Keywords:
-
- 7534 Radio emissions;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7549 Ultraviolet emissions;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7554 X-rays;
- gamma rays;
- and neutrinos;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7594 Instruments and techniques;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY