What's New :
UPSC Interview Guidance Program. Register here...

High-frequency waves detected in the Martian Upper Atmosphere could help understand plasma processes over Mars

  • Category
  • Published
    13th Jan, 2024


Insights from MAVEN

  • Detection of high-frequency plasma waves in the Martian upper atmosphere.
  • Novel narrowband and broadband features provide insights into plasma processes.

Understanding Plasma Waves:

  • Plasma waves observed in Earth's magnetosphere play a crucial role in particle energization and transport.
  • Electromagnetic ion cyclotron waves act as a cleaning agent for Earth's radiation belt.

Mars: An Unmagnetized Planet:

  • Mars lacks an intrinsic magnetic field, leading to direct interaction with high-speed solar wind from the Sun.
  • Researchers aim to understand the existence of various plasma waves in the Martian plasma environment.

Research at Indian Institute of Geomagnetism (IIG):

  • IIG researchers use high-resolution electric field data from NASA's MAVEN spacecraft.
  • MAVEN (Mars Atmosphere and Volatile Evolution Mission) provides valuable data on the Martian plasma environment.

Distinct Wave Modes at Martian Magnetosphere:

  • Two wave modes identified with frequencies below and above the electron plasma frequency.
  • Observations made around 5 LT on February 9, 2015, when MAVEN crossed the magnetopause boundary.

Broadband and Narrowband Wave Features:

  • Broadband waves exhibit periodic patchy structures with a periodicity of 8–14 milliseconds.
  • Distinguishable features observed in the frequency domain for both broadband and narrowband waves.

Significance of Observations:

  • Waves provide a tool to explore electron energy gain or dissipation in the Martian plasma environment.
  • Broadband-type wave generation and modulation mechanisms remain unexplained, requiring further investigation.

International Collaboration:

  • Research conducted by IIG scientists in collaboration with counterparts from Japan, USA, and UAE.
  • Findings published in the Astronomy & Astrophysics Journal.

Implications for Future Exploration:

  • Understanding plasma waves enhances knowledge of Martian atmospheric dynamics.
  • MAVEN's contributions crucial for ongoing and future missions exploring Mars.

Way Forward:

  • Detection of high-frequency plasma waves in the Martian upper atmosphere contributes to advancing our understanding of planetary plasma environments.
  • Ongoing collaboration and further research are essential for unraveling the mysteries of Martian magnetospheric dynamics.

Verifying, please be patient.

Our Centers

DELHI (Karol Bagh)

GS SCORE, 1B, Second Floor, Pusa Road, Karol Bagh, New Delhi - 110005 (Beside Karol Bagh Metro Station Gate No. 8)

Get directions on Google Maps

BHUBANESWAR (Jaydev Vihar)

GS SCORE, Plot No.2298, Jaydev Vihar Square, Near HCG Day Care, BBSR - 751013

Get directions on Google Maps

LUCKNOW (Aliganj)

GS SCORE, 2nd Floor, B-33, Sangam Chauraha, Sector H, Aliganj, Lucknow, UP - 226024

Get directions on Google Maps

Enquire Now