Results 11 to 20 of about 715,260 (276)

On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]

, 2015
PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
core   +4 more sources

Microlensing search for extra solar planets [PDF]

, 2015
Gravitational microlensing may be used to probe distant stars for planetary companions. The presence of a planet in the vicinity of a star acting as the lens may cause a short lived anomaly in the observed lightcurve of the lensing event.
Tsapras, Yiannis
core   +2 more sources

General circulation modelling of close-in extrasolar giant planets [PDF]

, 2011
PhDA large fraction of the extrasolar planets detected so far are giant planets that have such short orbital periods (a few days) that they are thought to be tidally-synchronised with the host star. Such orbits lead to permanent day/night sides on the
Thrastarson, Heidar Thor
core   +4 more sources

Microlensing for extrasolar planets : improving the photometry [PDF]

, 2013
Gravitational Microlensing, as a technique for detecting Extrasolar Planets, is recognised for its potential in discovering small-mass planets similar to Earth, at a distance of a few Astronomical Units from their host stars.
Bajek, David J.
core   +2 more sources

Wide angle search for extrasolar planets by the transit method [PDF]

, 2008
The transit method is considered to be one of the most promising for discovering extrasolar planets. However, the method requires photometric precision of better than ∼ 1%.
Alsubai, Khalid
core   +2 more sources

Minor Planets

, 2017
Minor Planets is a performance by Vlatka Horvat for five performers who work to make sense of themselves and their relation to each other as they traverse an impoverished landscape of detritus, wooden planks and fabric scraps.
Horvat, Vlatka
core   +5 more sources

A comparison of boulder morphology in the two geologic units of asteroid (101955) Bennu

Astronomy & Astrophysics
Context. Asteroid (101955) Bennu, a carbonaceous rubble-pile asteroid of about 500 m diameter, was visited by the OSIRIS-REx spacecraft in 2018. Images of Bennu’s surface show a rugged and a smooth surface unit.
Svanström E. S. L., Otto K. A., Schröder S. E.   +2 more
doaj   +1 more source

The spin state of asteroid Apophis and a prediction of its change during the 2029 close encounter with Earth

Astronomy & Astrophysics
Context. On April 13, 2029, the asteroid Apophis will pass near Earth at a geocentric distance of about 38 000 km. This will provide a unique opportunity to study the effects of Earth’s gravitational torque on the asteroid’s spin state and figure ...
Ďurech J., Vokrouhlický D., Pravec P., Hornoch K., Kušnirák P., Fatka P., Kučáková H., Hanuš J., Ferrais M., Jehin E., Benkhaldoun Z., Humes O., Polishook D., Marsset M., McMillan G., Podlewska-Gaca E., Colazo M., Marciniak A., Kamiński K., Kamińska M. K., Zoła S., Dróżdż M., Ogłoza W., Żejmo M., Carry B., Reichart D. E.   +25 more
doaj   +1 more source

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   +1 more source

Asteroid spin-rate studies using large sky-field surveys

Geoscience Letters, 2017
Eight campaigns to survey asteroid rotation periods have been carried out using the intermediate Palomar Transient Factory in the past 3 years. 2780 reliable rotation periods were obtained, from which we identified two new super-fast rotators (SFRs ...
Chan-Kao Chang, Hsing-Wen Lin, Wing-Huen Ip, Thomas A. Prince, Shrinivas R. Kulkarni, David Levitan, Russ Laher, Jason Surace   +7 more
doaj   +1 more source