Impacts of Dust Grains Accelerated by Supernovae on the Moon

Abstract

There is evidence that ejecta from nearby supernovae have rained down on Earth in the past. Supernovae can accelerate pre-existing dust grains in the interstellar medium to speeds of $\sim 0.01\mathrm{c}$. We investigate the survival and impact of dust grains from supernovae on the moon, finding that supernova dust grains can form detectable tracks with widths of $\sim 0.01-0.07\mu \mathrm{m}$ and depths of $\sim 0.1-0.7\mathrm{mm}$ in lunar rocks. These tracks could potentially shed light on the timings, luminosities, and directions of nearby supernovae.

arXiv comment4 pages, 2 figures; accepted for publication in ApJL

References in corpus (21)

• On the Rates of Gamma Ray Bursts and Type Ib/c Supernovae
• Condensation of dust in the ejecta of type II-P supernovae
• The dust mass in Cassiopeia A from a spatially resolved Herschel analysis
• The timing and location of dust formation in the remnant of SN 1987A
• Signatures of a two million year old supernova in the spectra of cosmic ray protons, antiprotons and positrons
• Time resolved 2 million year old supernova activity discovered in Earth's microfossil record
• Dust survival rates in clumps passing through the Cas A reverse shock I: results for a range of clump densities
• Evidence for Pre-Existing Dust in the Bright Type IIn SN 2010jl
• Dust masses for SN 1980K, SN1993J and Cassiopeia A from red-blue emission line asymmetries
• A supernova at 50 pc: Effects on the Earth's atmosphere and biota
• The interaction of relativistic spacecrafts with the interstellar medium
• Cosmic ray signatures of a 2-3 Myr old local supernova
• Terrestrial Effects Of Nearby Supernovae In The Early Pleistocene
• On origin and destruction of relativistic dust and its implication for ultrahigh energy cosmic rays
• The Search for Supernova-produced Radionuclides in Terrestrial Deep-sea Archives
• Electromagnetic forces on a relativistic spacecraft in the interstellar medium
• Near-Earth Supernova Explosions: Evidence, Implications, and Opportunities
• The Moon as a Recorder of Nearby Supernovae
• Searching the Moon for Extrasolar Material and the Building Blocks of Extraterrestrial Life
• A Real-Time Search for Interstellar Impacts on the Moon
• Observational Signatures of Sub-Relativistic Meteors

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