Results 1 to 10 of about 308,111 (288)

Constraining planet formation around 6$M_{\odot}$-8$M_{\odot}$ stars [PDF]

, 2020
Identifying planets around O-type and B-type stars is inherently difficult; the most massive known planet host has a mass of only about $3M_{\odot}$. However, planetary systems which survive the transformation of their host stars into white dwarfs can be detected via photospheric trace metals, circumstellar dusty and gaseous discs, and transits of ...
Gaensicke, Boris T., Hermes, J. J., Kennedy, Grant M., McDonald, Catriona H., Meru, Farzana, Tremblay, Pier-Emmanuel, Veras, Dimitri   +6 more
arxiv   +5 more sources

Near Infrared Surface Properties of the Two Intrinsically Brightest Minor Planets (90377) Sedna and (90482) Orcus [PDF]

Astrophys.J. 627 (2005) 1057-1065, 2005
We present low resolution K band spectra taken at the Gemini 8 meter telescope of (90377) Sedna and (90482) Orcus (provisional designations 2003 VB12 and 2004 DW, respectively), currently the two minor planets with the greatest absolute magnitudes (i.e. the two most reflective minor planets).
Brown, Michael E., Geballe, Thomas R., Rabinowitz, David L., Trujillo, Chadwick A.   +3 more
arxiv   +6 more sources

Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems [PDF]

Astrophys.J.693:1084-1099,2009, 2008
We present the latest velocities for 10 multi-planet systems, including a re-analysis of archival Keck and Lick data, resulting in improved velocities that supersede our previously published measurements. We derive updated orbital fits for ten Lick and Keck systems, including two systems (HD 11964, HD 183263) for which we provide confirmation of second
Barnes, Barnes, Bean, Bodenheimer, Bouchy, Bryden, Butler, Butler, Butler, Chiang, Cochran, D'Angelo, D. A. Fischer, Desort, Endl, Eric B. Ford, Fischer, Fischer, Fischer, Fischer, Ford, Ford, Ford, G. W. Marcy, Goldreich, Ida, Ida, J. T. Wright, John Asher Johnson, Johnson, Johnson, Knuth, Kokubo, Konacki, Laughlin, Lee, Lee, Levison, Marcy, Marcy, Marzari, Mayor, McArthur, Murray, Niedzielski, Pepe, Raghavan, Rivera, S. Upadhyay, Takeda, Tanaka, Tinney, Valenti, Vogt, Wittenmyer, Wright, Wright   +56 more
arxiv   +5 more sources

Star Hoppers: Planet Instability and Capture in Evolving Binary Systems [PDF]

, 2012
Many planets are observed in stellar binary systems, and their frequency may be comparable to that of planetary systems around single stars. Binary stellar evolution in such systems influences the dynamical evolution of the resident planets. Here we study the evolution of a single planet orbiting one star in an evolving binary system.
Kratter, Kaitlin M., perets, Hagai B.
arxiv   +3 more sources

Minor Planet Databases

Open Astronomy, 2015
We cast a retrospective look at the mankind’s acquaintance with minor bodies of the Solar System, at the explosive growth in their discoveries resulting from the technological progress, and at gradual understanding of the danger to our very existence ...
Rykhlova L., Bakanas E.
doaj   +3 more sources

Giant Planet Occurrence in the Stellar Mass-Metallicity Plane [PDF]

, 2010
Correlations between stellar properties and the occurrence rate of exoplanets can be used to inform the target selection of future planet search efforts and provide valuable clues about the planet formation process. We analyze a sample of 1194 stars drawn from the California Planet Survey targets to determine the empirical functional form describing ...
Aller, Kimberly M., Crepp, Justin R., Howard, Andrew W., Johnson, John Asher   +3 more
arxiv   +5 more sources

Minor planet astrophotometry [PDF]

, 2012
Historically, the Minor Planet Center (MPC) has concentrated on improving the quality of the astrometric observations and the resulting orbits of minor planets. In light of long-standing complaints in the literature about the quality of the photometric parameters for the minor planets, there has been a need to improve the quality of the absolute ...
Williams, Gareth Vaughan
openaire   +4 more sources

A Survey for Massive Giant Planets in Debris Disks with Evacuated Inner Cavities [PDF]

, 2007
The commonality of collisionally replenished debris around main sequence stars suggests that minor bodies are frequent around Sun-like stars. Whether or not debris disks in general are accompanied by planets is yet unknown, but debris disks with large inner cavities - perhaps dynamically cleared - are considered to be prime candidates for hosting large-
A. Moro‐Martin, B. Biller, D. Apai, E. E. Mamajek, E. Masciadri, I. Pascucci, J. S. Kim, L. A. Hillenbrand, M. Janson, M. Kasper, M. R. Meyer, Mueller M., Quillen A. C., Th. Henning   +13 more
arxiv   +5 more sources

Disc-planet interactions in sub-keplerian discs [PDF]

, 2009
One class of protoplanetary disc models, the X-wind model, predicts strongly subkeplerian orbital gas velocities, a configuration that can be sustained by magnetic tension. We investigate disc-planet interactions in these subkeplerian discs, focusing on orbital migration for low-mass planets and gap formation for high-mass planets.
Adams, Adams, Bate, Crida, D'Angelo, Goldreich, Lin, Masset, Nelson, Paardekooper, Paardekooper, Paardekooper, Paardekooper, Paardekooper, Peplinski, S.-J. Paardekooper, Shu, Terquem, Ward, Weidenschilling   +19 more
arxiv   +4 more sources

The unexpected narrowness of eccentric debris rings: a sign of eccentricity during the protoplanetary disc phase [PDF]

Royal Society Open Science, 2020
This paper shows that the eccentric debris rings seen around the stars Fomalhaut and HD 202628 are narrower than expected in the standard eccentric planet perturbation scenario (sometimes referred to as ‘pericentre glow’). The standard scenario posits an
Grant M. Kennedy
doaj   +1 more source