Results 21 to 30 of about 4,285 (205)

Synthetic Population of Interstellar Objects in the Solar System

Astronomy and Computing, 2023
The discovery of the first two macroscopic interstellar objects (ISOs) passing through the Solar System has opened entirely new perspectives in planetary science.
Marčeta, Dušan
core   +2 more sources

Interstellar objects in a galactic context

Interstellar objects (ISOs) form a vast Galaxy-spanning population with an number density ∼ 1015 pc−3 in the Solar neighbourhood. Though only two members of this population have been observed, 1I/‘Oumuamua and 2I/Borisov, the Vera C.
Hopkins, Matthew
core   +2 more sources

Predicting Interstellar Object Chemodynamics with Gaia

The Astronomical Journal
The interstellar object (ISO) population of the Milky Way is a product of its stars. However, what is in fact a complex structure in the solar neighborhood has traditionally in ISO studies been described as smoothly distributed.
Matthew J. Hopkins, Michele T. Bannister, Chris Lintott   +2 more
doaj   +3 more sources

Interstellar Object Accessibility and Mission Design

2023 IEEE Aerospace Conference, 2023
IEEE Aerospace Conference, Preprint Version, Accepted: November ...
Donitz, Benjamin P. S., Mages, Declan, Tsukamoto, Hiroyasu, Dixon, Peter, Landau, Damon, Chung, Soon-Jo, Bufanda, Erica, Ingham, Michel, Castillo-Rogez, Julie   +8 more
openaire   +3 more sources

Spitzer Observations of Interstellar Object 1I/‘Oumuamua [PDF]

The Astronomical Journal, 2018
Abstract 1I/‘Oumuamua is the first confirmed interstellar body in our solar system. Here we report on observations of ‘Oumuamua made with the Spitzer Space Telescope on 2017 November 21–22 (UT). We integrated for 30.2 hr at 4.5 μm (IRAC channel 2). We did not detect the object and place an upper limit on the flux of 0.3 μJy (3σ).
David E. Trilling, Michael Mommert, Joseph L. Hora, Davide Farnocchia, Paul Chodas, Jon Giorgini, Howard A. Smith, Sean Carey, Carey M. Lisse, Michael Werner, Andrew McNeill, Steven R. Chesley, Joshua P. Emery, Giovanni Fazio, Yanga R. Fernandez, Alan Harris, Massimo Marengo, Michael Mueller, Alissa Roegge, Nathan Smith, H. A. Weaver, Karen Meech, Marco Micheli   +22 more
openaire   +5 more sources

A fast response mission to rendezvous with an interstellar object [PDF]

Experimental Astronomy, 2022
17 pages, 9 ...
Darren Garber, Louis D. Friedman, Artur Davoyan, Slava G. Turyshev, Nahum Melamed, John McVey, Todd F. Sheerin   +6 more
openaire   +4 more sources

The Interstellar Object ’Oumuamua as a Fractal Dust Aggregate [PDF]

The Astrophysical Journal Letters, 2019
Abstract The first known interstellar object ’Oumuamua exhibited a nongravitational acceleration that appeared inconsistent with cometary outgassing, leaving radiation pressure as the most likely force. Barring the alien lightsail hypothesis, an ultra-low density due to a fractal structure might also explain the acceleration of ’Oumuamua
Eirik G. Flekkøy, Jane Luu, Renaud Toussaint   +2 more
openaire   +5 more sources

Numerical Simulations of Tidal Deformation and Resulting Light Curves of Small Bodies: Material Constraints of 99942 Apophis and 1I/‘Oumuamua

The Planetary Science Journal, 2023
In this paper, we present an open-source software (Simulator of Asteroid Malformation Under Stress, SAMUS ) that simulates constant-density, constant-viscosity liquid bodies subject to tidal forces for a range of assumed viscosities and sizes.
Aster G. Taylor, Darryl Z. Seligman, Douglas R. MacAyeal, Olivier R. Hainaut, Karen J. Meech   +4 more
doaj   +1 more source

High spatial resolution galactic 3D extinction mapping with IPHAS [PDF]

, 2008
We present an algorithm (MEAD, for 'Mapping Extinction Against Distance') which will determine intrinsic (r' - i') colour, extinction, and distance for early-A to K4 stars extracted from the IPHAS r'/ i'/H alpha photometric data base.
R. A. H. Morris, Napiwotzki, Ralf, A. A. Zijlstra, Drew, J. E., Sale, Stuart E., J. E. Drew, N. A. Walton, Phillipps, S., Steeghs, D., P. J. Groot, Gaensicke, B. T., Unruh, Y.C., Morris, R.A.H., S. Phillipps, Groot, P., Sale, S.E., Sale, S. E., R. Napiwotzki, Drew, J.E., Morris, R. A H, M.J. Irwin, C. Knigge, Zijlstra, A.A., Napiwotzki, R., R. Greimel, Morris, R. A. H., Knigge, Christian, Groot, P.J., Gänsicke, B. T., A. Mampaso, Walton, N.A., Unruh, Y. C., Irwin, M. J., Mampaso, A., Knigge, C., Zijlstra, A. A.; id_orcid, Y. C. Unruh, Greimel, R., D. Steeghs, Irwin, M.J., Phillips, S., Gänsicke, B.T., Zijlstra, A. A., Groot, P. J., B. T. Gänsicke, Walton, N. A., Stuart E. Sale   +46 more
core   +1 more source

Solar Sails : Technology and demonstration status [PDF]

, 2012
Solar Sail propulsion has been validated in space (IKAROS, 2012) and soon several more solar-sail propelled spacecraft will be flown. Using sunlight for spacecraft propulsion is not a new idea.
Johnson, Les, McInnes, Colin, Lappas, Vaios, Young, Roy, Friedman, Louis, Barnes, Nathan   +5 more
core   +1 more source