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Minor Planet 1036 Ganymed, the largest Mars crosser, made its closest approach to Earth in the 21st century in 2011 October, and was continuously observed over a path length exceeding 100 degrees from 2011 May to 2012 January. The shape of the lightcurve changed greatly during this interval, with a mean synodic period 10.3031 hours over the interval 2011 May to October and amplitude varying from 0.10 mag to 0.30 mag and increasing roughly linearly with increasing phase angle.
The Astronomical Journal
OGLE-2016-BLG-1227L: A Wide-separation Planet from a Very Short-timescale Microlensing Event2018 •
Astronomy & Astrophysics
A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-02512013 •
2012 •
Discovered in October 2010 by the LINEAR survey, P/2010 TO20 LINEARGrauer (P/LG) was initially classified as an inert Jupiter Trojan. Subsequent observations obtained in October 2011 revealed P/LG to be a Jupiter-family comet. P/LG has one of the largest perihelia (q = 5.1 au) and lowest eccentricities (e = 0.09) of the known JFCs. We report on observations of P/LG taken on 29 October 2011 and numerical simulations of its orbital evolution. Analysis of our data reveals that P/LG has a small nucleus (< 3 km in radius) with broadband colours (B −R = 0.99± 0.06 mag, V −R = 0.47± 0.06 mag) typical of JFCs. We find a model dependent mass-loss rate close to 100 kg s, most likely powered by water-ice sublimation. Our numerical simulation indicate that the orbit of P/LG is unstable on very short (10 to 100 yr) timescales and suggest this object has recently evolved into its current location from a more distant, Centaur-type orbit. The orbit, dynamics and activity of P/LG share similariti...
Astronomy and Astrophysics
MOST detects variability on τ Bootis A possibly induced by its planetary companion2008 •
2000 •
2019 •
We report HST lightcurve observations of the New Horizons (NH) spacecraft encounter KBO (486958) 2014 MU69 acquired near opposition in July 2017. In order to plan the optimum flyby sequence the NH mission planners needed to learn as much as possible about the target in advance of the encounter. Specifically, from lightcurve data, encounter timing could be adjusted to accommodate a highly elongated, binary, or rapidly rotating target. HST astrometric (Porter et al. 2018) and stellar occultation (Buie et al. 2018) observations constrained MU69’s orbit and diameter (21-41 km for an albedo of 0.15-0.04), respectively. Photometry from the astrometric dataset suggested a variability of $\ge$0.3 mags, but they did not determine the period or provide shape information. We strategically spaced 24 HST orbits over 9 days to investigate rotation periods from approximately 2-100 hours and to better constrain the lightcurve amplitude. Until NH detected MU69 in its optical navigation images beginning in August 2018, this HST campaign provided the most accurate photometry to date. The mean variation in our data is 0.15 mags which suggests that MU69 is either nearly spherical (a:b axis ratio of 1:1.15), or its pole vector is pointed near the line of sight to Earth; this interpretation does not preclude a near-contact binary or bi-lobed object. However, image stacks do conclude that MU69 does not have a binary companion $\ge$2000 km with a sensitivity to 29th magnitude. We report with confidence that MU69 is not both rapidly rotating and highly elongated. We note that our results are consistent with the fly-by imagery and orientation of MU69 (Stern et al. 2019). The combined dataset also suggests that within the KBO lightcurve literature there are likely other objects which share a geometric configuration like MU69 resulting in an underestimate of the contact binary fraction for the CC Kuiper Belt.
Powder Metallurgy
Soft magnetic Cu–Co–Ni composite materials produced by mechanical alloying, cold compaction and sintering2012 •
2011 •
Czech Journal of Food Sciences
Influence of temperature on the formation of heterocyclic aromatic amines in pork steaks2020 •
Advances in Civil Engineering
Towards Sustainability: An Experimental and Analytical Investigation of an Agricultural Waste as a Pozzolanic Material in Concrete Mixtures2022 •
physica status solidi (b)
Internal Stress‐Related Vibrational Splitting in Compressed SiO 22021 •
2020 •
2011 •
Journal of Neurology
Motor evoked potentials to magnetic stimulation: technical considerations and normative data from 50 subjects1992 •
Research for development
Re-NetTA. Re-Manufacturing Networks for Tertiary Architectures2019 •
THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY
Pressure Effect on the Spin Fluctuations in YMn2. Mn NQR Study1998 •
Journal of Microbiological Methods
Real-time PCR assay for the detection of species of the genus Mannheimia2008 •
The International journal on drug policy
Injecting drugs into human rights advocacy2007 •
Proceedings of the 18th LACCEI International Multi-Conference for Engineering, Education, and Technology: Engineering, Integration, And Alliances for A Sustainable Development” “Hemispheric Cooperation for Competitiveness and Prosperity on A Knowledge-Based Economy”
Cálculo del índice de prestación energética: Comparativa de dos casos de estudio en la Ciudad Autónoma de Buenos Aires2020 •
arXiv (Cornell University)
Virtual Screening on FPGA: Performance and Energy versus Effort2022 •
Semina-ciencias Agrarias
Tolerância de microrganismos eucariotos ao herbicida glifosato2021 •
Proceedings of the International Conference on Industrial Engineering and Operations Management
Ergonomic Assessment of Copra Cake Manual Material Handling Process: A Basis for the Design of an Ergonomic EquipmentEnvironmental Monitoring and Assessment
Monitoring of cyanobacterial breakthrough and accumulation by in situ phycocyanin probe system within full-scale treatment plantsRevue d'histoire des sciences
Pierre Bouguer, commissaire pour la marine et expert pour les longitudes : Un opposant au développement de l'horlogerie de marine au xviiie siècle ?2010 •
Interamerican Journal of Psychology
Desenredando el Ambiente: Valores y Afectos Asociados a los Animales en Estudiantes de Psicología de la Ciudad de Buenos Aires, Argentina2020 •