Interstellar Probe Measurements of Dust in the Heliosphere, HelioSheath, and the Nearby Galaxy

Carey M. Lisse (1) , Michael Zemcov (2) , Andrew R. Poppe (3) , Jamey R. Szalay (4) , Mihaly Horanyi (5) , Bruce T. Draine (4) , Charles Beichman (6) , Veerle J. Sterken (7) , Anny Chantal Levasseur-Regourd (8) , Rosine Lallement (9) , Priscilla Frisch (10) , Jonathan D. Slavin (11) , Pontus C. Brandt (1) , Ralph Mcnutt (1) , A. Corcoros (1)

1 APL - Johns Hopkins University Applied Physics Laboratory [Laurel, MD]
2 RIT - Rochester Institute of Technology
3 SSL - Space Sciences Laboratory [Berkeley]
4 Princeton University
5 LASP - Laboratory for Atmospheric and Space Physics [Boulder]
6 JPL - Jet Propulsion Laboratory
7 UNIBE - Universität Bern / University of Bern
8 PLANETO - LATMOS
9 GEPI - Galaxies, Etoiles, Physique, Instrumentation
10 University of Chicago
11 CfA - Harvard-Smithsonian Center for Astrophysics

Micron sized dust grains are present throughout the heliosphere and in the nearby galaxy as both interplanetary dust (IPD) and interstellar dust (ISD) particles. Dust sources include grinding main belt asteroids, sputtered KBOs in the EKB, and sublimating comets throughout, while sinks include solar radiation pressure and evaporation. The full shape and structure of the solar system's dust disks are poorly understood because we live inside of them; we especially do not understand the outer disks regions since near-Sun cometary contributions dominate near-Earth space and only 1 spacecraft, New Horizons, has ever flown a dust counter through the EKB. The ability to map the radial gradient of interplanetary dust grain composition (s) provides strong constraints on the masses, compositions, and origins of their parent relic bodies.

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]

Carey M. Lisse, Michael Zemcov, Andrew R. Poppe, Jamey R. Szalay, Mihaly Horanyi, et al.. Interstellar Probe Measurements of Dust in the Heliosphere, HelioSheath, and the Nearby Galaxy. AGU fall Meeting 2021, Dec 2021, Virtual Meeting, United States. ⟨insu-03475232⟩