Results 11 to 20 of about 940 (210)

Shepherding in a Self-gravitating Disk of Trans-Neptunian Objects. [PDF]

Astron J, 2019
Abstract A relatively massive and moderately eccentric disk of trans-Neptunian objects (TNOs) can effectively counteract apse precession induced by the outer planets, and in the process shepherd highly eccentric members of its population into nearly stationary configurations that are antialigned with the disk itself. We were sufficiently
Sefilian AA, Touma JR.
europepmc   +5 more sources

The Trans-Neptunian Objects

EAS Publications Series, 2010
Trans-neptunian objects (TNOs) are believed to be pristine remnants of planets formation, providing constrains on the early stages of the solar system evolution. The knowledge of this population composition and dynamics provides constrains on the formation processes of the early solar nebula, as well as formation processes of other planetary systems ...
Guilbert, Aurélie, Barucci, Maria Antonella   +1 more
openaire   +3 more sources

Rotations and densities of trans-Neptunian objects [PDF]

Astronomy & Astrophysics, 2009
Trans-Neptunian objects (TNOs) represent a new frontier in the study of our Solar System. In particular, the investigation of their rotational properties can provide important hints about their internal structure and collisional evolution. Aims: We expand the limited sample of TNOs with known rotation rates, and improve the knowledge of the physical ...
Perna, Davide, Dotto, Elisabetta, Barucci, Maria Antonella, Rossi, Alessandro, Fornasier, Sonia, de Bergh, Catherine   +5 more
openaire   +3 more sources

Rotational properties of Centaurs and Trans-Neptunian Objects [PDF]

Astronomy & Astrophysics, 2008
Context. The knowledge of the rotational periods of the small bodies in the outer Solar System is a useful tool for retrieving information on the internal structure of the observed objects and for having hints on the collisional evolution state of the whole population. Aims.
Dotto, Elisabetta, Perna, Davide, Barucci, Maria Antonella, Rossi, Alessandro, de Bergh, Catherine, Doressoundiram, Alain, Fornasier, Sonia   +6 more
openaire   +4 more sources

Chemical Evolution of Isotopically Labeled Carbon Dioxide (13CO2) Ice Exposed to Ionizing Radiation and Implications for Trans-Neptunian Objects

The Astrophysical Journal
We present results on the radiation chemistry of isotopically labeled carbon dioxide ( ^13 CO _2 ) ices induced by energetic electrons at 40 and 10 K to simulate the chemical evolution of carbon dioxide on trans-Neptunian objects exposed to galactic ...
Chaojiang Zhang, Leslie A. Young, Ralf I. Kaiser   +2 more
doaj   +2 more sources

No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects

The Planetary Science Journal, 2021
Abstract The apparent clustering in longitude of perihelion ϖ and ascending node Ω of extreme trans-Neptunian objects (ETNOs) has been attributed to the gravitational effects of an unseen 5–10 Earth-mass planet in the outer solar system. To investigate how selection bias may contribute to this clustering, we consider 14 ETNOs discovered ...
Napier, K. J., Gerdes, D. W., Lin, Hsing Wen, Hamilton, S. J., Bernstein, G. M., Bernardinelli, P. H., Abbott, T. M. C., Aguena, M., Annis, J., Avila, S., Bacon, D., Bertin, E., Brooks, D., Burke, D. L., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Costanzi, M., da Costa, L. N., De Vicente, J., Diehl, H. T., Doel, P., Everett, S., Ferrero, I., Fosalba, P., García-Bellido, J., Gruen, D., Gruendl, R. A., Gutierrez, G., Hollowood, D. L., Honscheid, K., Hoyle, B., James, D. J., Kent, S., Kuehn, K., Kuropatkin, N., Maia, M. A. G., Menanteau, F., Miquel, R., Morgan, R., Palmese, A., Paz-Chinchón, F., Plazas, A. A., Sanchez, E., Scarpine, V., Serrano, S., Sevilla-Noarbe, I., Smith, M., Suchyta, E., Swanson, M. E. C., To, C., Walker, A. R., Wilkinson, R. D., DES Collaboration   +53 more
openaire   +10 more sources

Hunting for Hydrated Minerals on Trans-Neptunian Objects

The Planetary Science Journal
We present new optical reflectance spectra of three potentially silicate-rich trans-Neptunian objects (TNOs). These spectra were obtained with the aim of confirming past hints and detections of λ ∼ 0.7 μ m absorption features associated with the presence
Tom Seccull, Wesley C. Fraser, Dominik A. Kiersz, Thomas H. Puzia   +3 more
doaj   +3 more sources

Candidate Distant Trans-Neptunian Objects Detected by the New Horizons Subaru TNO Survey

The Planetary Science Journal
We report the detection of 239 trans-Neptunian objects discovered through the ongoing New Horizons survey for distant minor bodies being performed with the Hyper Suprime-Cam mosaic imager on the Subaru Telescope.
Wesley C. Fraser, Simon B. Porter, Lowell Peltier, JJ Kavelaars, Anne J. Verbiscer, Marc W. Buie, S. Alan Stern, John R. Spencer, Susan D. Benecchi, Tsuyoshi Terai, Takashi Ito, Fumi Yoshida, David W. Gerdes, Kevin J. Napier, Hsing Wen Lin, Stephen D. J. Gwyn, Hayden Smotherman, Sebastien Fabbro, Kelsi N. Singer, Amanda M. Alexander, Ko Arimatsu, Maria E. Banks, Veronica J. Bray, Mohamed Ramy El-Maarry, Chelsea L. Ferrell, Tetsuharu Fuse, Florian Glass, Timothy R. Holt, Peng Hong, Ryo Ishimaru, Perianne E. Johnson, Tod R. Lauer, Rodrigo Leiva, Patryk S. Lykawka, Raphael Marschall, Jorge I. Núñez, Marc Postman, Eric Quirico, Alyssa R. Rhoden, Anna M. Simpson, Paul Schenk, Michael F. Skrutskie, Andrew J. Steffl, Henry Throop   +43 more
doaj   +2 more sources

Trans-Neptunian objects: More than meets the ice. [PDF]

Sci Adv, 2023
Eris, the second largest trans-Neptunian object (136199), melted early and maintains a warm ice conductive ice shell unlike Pluto.
Kareta T.
europepmc   +3 more sources

TNOs are Cool: A Survey of the Trans-Neptunian Region: Radiometric properties of Trans-Neptunian Objects [PDF]

, 2010
The "TNOs are Cool: A Survey of the Trans-Neptunian Region" project is a Herschel Open Time Key Program awarded some 370 h of Herschel observing time. The observations include PACS and SPIRE point-source photometry on about 140 trans-Neptunian objects with known orbits.
Mommert, Michael, Müller, Thomas, Böhnhardt, Hermann, Lellouch, Emmanuel, Stansberry, John, Barucci, Antonella, Crovisier, Jacques, Delsanti, Audrey, Doressoundiram, Alain, Dotto, Elisabetta, Duffard, René D., Fornasier, Sonia, Groussin, Olivier, Guilbert, Aurelie, Gutiérrez Buenestado, Pedro J., Hainaut, Olivier, Harris, Alan W., Hartogh, Paul, Henry, Florence, Hestroffer, Daniel, Horner, Jonathan, Jewitt, Dave, Kidger, Mark, Kiss, Csaba, Lacerda, Pedro, Lara López, Luisa M., Lim, Tanya, Mueller, Michael, Moreno, Raphael, Ortiz Moreno, Jose Luis, Pal, Andras, Protopapa, Silvia, Rengel, Miriam, Santos Sanz, Pablo, Swinyard, Bruce, Thomas, Nicolas, Thirouin, Audrey, Trilling, David, Vilenius, Esa   +38 more
core   +6 more sources