Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission
Abstract The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) investigation will use gamma‐ray and neutron spectroscopy to measure the elemental composition of Mars' moon Phobos. MEGANE is part of the Japanese Martian Moons eXploration (MMX) mission that will make comprehensive remot...
Main Authors: | , , , , , , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
American Geophysical Union (AGU)
2019-12-01
|
Series: | Earth and Space Science |
Subjects: | |
Online Access: | https://doi.org/10.1029/2019EA000811 |
id |
doaj-5085fe4d9e88448392f50d888ca6c898 |
---|---|
record_format |
Article |
spelling |
doaj-5085fe4d9e88448392f50d888ca6c8982020-11-25T01:37:58ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842019-12-016122605262310.1029/2019EA000811Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) MissionDavid J. Lawrence0Patrick N. Peplowski1Andrew W. Beck2Morgan T. Burks3Nancy L. Chabot4Michael J. Cully5Richard C. Elphic6Carolyn M. Ernst7Samuel Fix8John O. Goldsten9Erin M. Hoffer10Hiroki Kusano11Scott L. Murchie12Brian C. Schratz13Tomohiro Usui14Zachary W. Yokley15Johns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDMarietta College Marietta OHLawrence Livermore National Laboratory Livermore CAJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDNASA Ames Research Center Moffett Field CAJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJapan Aerospace Exploration Agency Sagamihara City JapanJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDJapan Aerospace Exploration Agency Sagamihara City JapanJohns Hopkins University Applied Physics Laboratory John Hopkins University Laurel MDAbstract The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) investigation will use gamma‐ray and neutron spectroscopy to measure the elemental composition of Mars' moon Phobos. MEGANE is part of the Japanese Martian Moons eXploration (MMX) mission that will make comprehensive remote sensing measurements of both of Mars' moons Phobos and Deimos. MMX will also return to Earth regolith samples of Phobos. The science goals of the MEGANE investigation mirror those of the MMX mission. MEGANE will use elemental composition measurements to determine if Phobos is a captured asteroid or the end result of a giant impact event on Mars, study Phobos surface processes, provide reconnaissance to support the sample site selection, and supply compositional context for the returned samples. To accomplish its measurements, MEGANE will use a high‐purity Ge gamma‐ray spectrometer (GRS), and a neutron spectrometer (NS) that consists of two 3He gas proportional neutron sensors. The GRS derives heritage from similar instruments from NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission and the Psyche mission that is currently in development; the NS is based on similar instruments used for NASA's Lunar Prospector and Psyche missions.https://doi.org/10.1029/2019EA000811compositionDeimosformationgamma rayneutronPhobos |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
David J. Lawrence Patrick N. Peplowski Andrew W. Beck Morgan T. Burks Nancy L. Chabot Michael J. Cully Richard C. Elphic Carolyn M. Ernst Samuel Fix John O. Goldsten Erin M. Hoffer Hiroki Kusano Scott L. Murchie Brian C. Schratz Tomohiro Usui Zachary W. Yokley |
spellingShingle |
David J. Lawrence Patrick N. Peplowski Andrew W. Beck Morgan T. Burks Nancy L. Chabot Michael J. Cully Richard C. Elphic Carolyn M. Ernst Samuel Fix John O. Goldsten Erin M. Hoffer Hiroki Kusano Scott L. Murchie Brian C. Schratz Tomohiro Usui Zachary W. Yokley Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission Earth and Space Science composition Deimos formation gamma ray neutron Phobos |
author_facet |
David J. Lawrence Patrick N. Peplowski Andrew W. Beck Morgan T. Burks Nancy L. Chabot Michael J. Cully Richard C. Elphic Carolyn M. Ernst Samuel Fix John O. Goldsten Erin M. Hoffer Hiroki Kusano Scott L. Murchie Brian C. Schratz Tomohiro Usui Zachary W. Yokley |
author_sort |
David J. Lawrence |
title |
Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission |
title_short |
Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission |
title_full |
Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission |
title_fullStr |
Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission |
title_full_unstemmed |
Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission |
title_sort |
measuring the elemental composition of phobos: the mars‐moon exploration with gamma rays and neutrons (megane) investigation for the martian moons exploration (mmx) mission |
publisher |
American Geophysical Union (AGU) |
series |
Earth and Space Science |
issn |
2333-5084 |
publishDate |
2019-12-01 |
description |
Abstract The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) investigation will use gamma‐ray and neutron spectroscopy to measure the elemental composition of Mars' moon Phobos. MEGANE is part of the Japanese Martian Moons eXploration (MMX) mission that will make comprehensive remote sensing measurements of both of Mars' moons Phobos and Deimos. MMX will also return to Earth regolith samples of Phobos. The science goals of the MEGANE investigation mirror those of the MMX mission. MEGANE will use elemental composition measurements to determine if Phobos is a captured asteroid or the end result of a giant impact event on Mars, study Phobos surface processes, provide reconnaissance to support the sample site selection, and supply compositional context for the returned samples. To accomplish its measurements, MEGANE will use a high‐purity Ge gamma‐ray spectrometer (GRS), and a neutron spectrometer (NS) that consists of two 3He gas proportional neutron sensors. The GRS derives heritage from similar instruments from NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission and the Psyche mission that is currently in development; the NS is based on similar instruments used for NASA's Lunar Prospector and Psyche missions. |
topic |
composition Deimos formation gamma ray neutron Phobos |
url |
https://doi.org/10.1029/2019EA000811 |
work_keys_str_mv |
AT davidjlawrence measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT patricknpeplowski measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT andrewwbeck measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT morgantburks measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT nancylchabot measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT michaeljcully measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT richardcelphic measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT carolynmernst measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT samuelfix measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT johnogoldsten measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT erinmhoffer measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT hirokikusano measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT scottlmurchie measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT briancschratz measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT tomohirousui measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission AT zacharywyokley measuringtheelementalcompositionofphobosthemarsmoonexplorationwithgammaraysandneutronsmeganeinvestigationforthemartianmoonsexplorationmmxmission |
_version_ |
1725056015958802432 |