1 / 8

LXO Kick-Off Meeting

LXO Kick-Off Meeting. Agenda: Introduction (this talk) Steve: 10 min Solar System science with X-rays Mark: 10 min Basic Feasibility Study Jenny: 10 min Round-table discussion ~ 1.5 hours (?).

vernon-mcclure
Download Presentation

LXO Kick-Off Meeting

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LXO Kick-Off Meeting Agenda: Introduction (this talk) Steve: 10 min Solar System science with X-rays Mark: 10 min Basic Feasibility Study Jenny: 10 min Round-table discussion ~ 1.5 hours (?) LXO stands for Lunar X-ray Observatory, but this is only a placeholder name. Location on the moon has logistical and political advantages – but is not a necessary requirement.

  2. Primary Science Goal: study of SWCX mechanism A Lunar X-ray Observatory properly placed on the Moon will observe soft X-ray emission from the interaction of the solar wind with both the magnetosheath and the lunar atmosphere.

  3. LXO: example configuration: Simple collimated device Basic Constraints based on ALSEP experience: Mass < 40 kg Power < 75W • Mass < 40 kg (self-contained power system, i.e. solar cells + battery) • Mass < 20 kg (external PSU common to multiple experiments) • Power < 70W if actively cooled with Thermal Electric Cooler (TEC) • Power < 20-30W if passively cooled and operated during lunar night.

  4. A model of the X-ray background (black), the magnetosheath (SWCX) (red), and the SWCX emission from the lunar atmosphere (green). All have similar strengths and spectral shape. A collimated device will be able to separate the components only by looking at time variability of the components.

  5. Lunar atmosphere contribution…. Simulation of the soft X-ray emission as a function of Position in the lunar sky. (Trávniček et al. 2005) Suggests optimum location to provide greatest contrast is polar position with view zenith angle ~ 900

  6. Magnetosheath contribution…. Magnetosheath Imaged! A model of the strength of the magnetospheric SWCX emission as a function of position around the Earth (at origin) (Robertson & Cravens 2003).This is NOT a static picture: soft X-ray imaging can be used to study the dynamical interaction between the magnetosheath and the solar wind.

  7. Technical Requirements Wish List: • Imaging capability • FOV ~ 30 degrees • Angular Resolution ~ 1.5 arcminutes • Detector pixel size ~ 200 microns • Soft X-ray response (0.2 – 1.5 keV) • CCD quality energy resolution or better • Large Area Detector • ~ 20 cm x 20 cm • “Moderate” timing capability

  8. R = 100 cm FOV = 30° D = ~26 cm!

More Related