Results 21 to 30 of about 13,549 (185)

The dynamics of asteroid rotation, governed by YORP effect: the kinematic ansatz

, 2018
The main motivation of this research is the analytical exploration of the dynamics of asteroid rotation when it moves in elliptic orbit through Space.
Ershkov, Sergey V., Shamin, Roman V.
core   +1 more source

INVESTIGATION OF NEO ASTEROIDS 2006 VB14 AND 1986 DA

Odessa Astronomical Publications, 2019
566 positions and photometric observa- tions of NEO objects 2006 VB14 = Y5705 = 345705 and 1986 DA were obtained with Baldone Schmidt telescope in 2018 and 2019, to detecting rotation period and other physical characteristics.
I. Eglitis
doaj   +1 more source

YORP and Yarkovsky effects in asteroids (1685) Toro, (2100) Ra-Shalom, (3103) Eger, and (161989) Cacus

, 2017
The rotation states of small asteroids are affected by a net torque arising from an anisotropic sunlight reflection and thermal radiation from the asteroids' surfaces. On long timescales, this so-called YORP effect can change asteroid spin directions and
Ayvazian, V. R., Chiorny, V. G., Durech, J., Farnocchia, D., Fatka, P., Gaftonyuk, N., Galad, A., Groom, R., Hanus, J., Hornoch, K., Inasaridze, R. Y., Krugly, Yu. N., Kucakova, H., Kusnirak, P., Kvaratskhelia, O. I., Lehky, M., Masi, G., Molotov, I. E., Oey, J., Pollock, J. T., Pravec, P., Shevchenko, V. G., Vokrouhlicky, D., Vrastil, J., Warner, B. D.   +24 more
core   +1 more source

Stability of a Rotating Asteroid Housing a Space Station

Frontiers in Astronomy and Space Sciences, 2019
Today there are numerous studies on asteroid mining. They elaborate on selecting the right objects, prospecting missions, potential asteroid redirection, and the mining process itself.
Thomas I. Maindl, Roman Miksch, Birgit Loibnegger   +2 more
doaj   +1 more source

Analysis of the rotation period of asteroids (1865) Cerberus, (2100) Ra-Shalom, and (3103) Eger - search for the YORP effect

, 2012
The spin state of small asteroids can change on a long timescale by the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect, the net torque that arises from anisotropically scattered sunlight and proper thermal radiation from an irregularly-shaped ...
Baransky, A. R., Breiter, S., Burkhonov, O. A., Cooney, W., Durech, J., Fuller, V., Gaftonyuk, N. M., Gross, J., Inasaridze, R. Ya., Kaasalainen, M., Krugly, Yu. N., Kvaratshelia, O. I., Litvinenko, E. A., Macomber, B., Marchis, F., Molotov, I. E., Oey, J., Polishook, D., Pollock, J., Pravec, P., Sarneczky, K., Shevchenko, V. G., Slyusarev, I., Stephens, R., Szabo, Gy., Terrell, D., Vachier, F., Vanderplate, Z., Viikinkoski, M., Vokrouhlicky, D., Warner, B. D.   +30 more
core   +3 more sources

An Efficient Numerical Approach to Modeling the Effects of Particle Shape on Rubble-pile Dynamics

The Planetary Science Journal, 2023
We present an approach for the inclusion of nonspherical constituents in high-resolution N -body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model nonspherical components.
Julian C. Marohnic, Joseph V. DeMartini, Derek C. Richardson, Yun Zhang, Kevin J. Walsh   +4 more
doaj   +1 more source

313 new asteroid rotation periods from Palomar Transient Factory observations [PDF]

, 2014
A new asteroid rotation period survey have been carried out by using the Palomar Transient Factory (PTF). Twelve consecutive PTF fields, which covered an area of 87 deg$^2$ in the ecliptic plane, were observed in $R$ band with a cadence of $\sim$20 min ...
Chang, Chan-Kao, Cheng, Yu-Chi, Ip, Wing-Huen, Kulkarni, Shrinivas R., Laher, Russ, Levitan, David, Lin, Hsing-Wen, Ngeow, Chow-Choong, Prince, Thomas. A., Sesar, Branimir, Surace, Jason, Team, the PTF, Waszczak, Adam, Yang, Ting-Chang   +13 more
core   +3 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Nucleus of active asteroid 358P/Pan-STARRS (P/2012 T1)

, 2018
The dust emission from active asteroids is likely driven by collisions, fast rotation, sublimation of embedded ice, and combinations of these. Characterising these processes leads to a better understanding of their respective influence on the evolution ...
Agarwal, Jessica, Mommert, Michael
core   +1 more source

A 2km-size asteroid challenging the rubble-pile spin barrier – A case for cohesion [PDF]

, 2018
The rubble pile spin barrier is an upper limit on the rotation rate of asteroids larger than ~200-300. m. Among thousands of asteroids with diameters larger than ~300. m, only a handful of asteroids are known to rotate faster than 2.0.
Aharonson, O., Binzel, Richard P, Burt, Brian, DeMeo, Francesca E, Hinkle, M.L., Lockhart, M., Mommert, M., Moskovitz, N., Person, Michael J, Polishook, D., Thirouin, A., Thomas, C.A., Trilling, D., Willman, M.   +13 more
core   +1 more source