Results 111 to 120 of about 231,562 (296)

Apache Point Rapid Response Characterization of Primitive Imminent Impactor 2024 RW1

The Astronomical Journal
Imminent impactors may be detected only a few hours before their impact with Earth, providing a brief opportunity to characterize them before impact. We describe the characterization of imminent impactor 2024 RW _1 , which was discovered by the Catalina ...
Carl Ingebretsen, Bryce T. Bolin, Robert Jedicke, Peter Vereš, Christine H. Chen, Carey M. Lisse, Russet McMillan, Torrie Sutherland, Amanda J. Townsend   +8 more
doaj   +1 more source

Astrometric planet search around southern ultracool dwarfs I: First results, including parallaxes of 20 M8-L2 dwarfs

, 2014
Extrasolar planet searches targeting very low-mass stars and brown dwarfs are hampered by intrinsic or instrumental limitations. Time series of astrometric measurements with precisions better than one milli-arcsecond can yield new evidence on the planet ...
Lazorenko, P. F., Martin, E. L., Mayor, M., Queloz, D., Sahlmann, J., Segransan, D., Udry, S.   +6 more
core   +3 more sources

Wet Ball Milling Synthesis of Iron Oxide Nanoparticles for High‐Efficiency, Controllable Magnetic Hyperthermia in Ovarian Cancer

Advanced Materials Technologies, EarlyView.
A wet ball‐milling method is presented to synthesize iron magnetic nanoparticles and evaluate their magnetic hyperthermia performance. Optimized particles (∼270 nm, Ms ∼114 emu/g) achieve ∼50°C heating under clinically safe alternating magnetic fields, while pulsed‐field operation enables controlled temperature regulation (∼30°C).
Shahriar Mostufa, Bahareh Rezaei, Md Shahriar, Karla Mercedes Paz González, Anil Kumar, Changxue Xu, Yun Suk Eo, Ioannis H. Karampelas, Jenifer Gómez‐Pastora, Rui He, Kai Wu   +10 more
wiley   +1 more source

Quantifying the Contamination of TESS Ecliptic-plane Light Curves by Minor Planets

The Astronomical Journal
Though missions devoted to time series photometry focus primarily on targets far beyond the solar system, their observations can be contaminated by foreground minor planets, especially near the ecliptic plane, where solar system objects are most ...
Ben Cassese, Justin Vega, Daniel A. Yahalomi, David Gelpi, Eva Marmolejos, Aneisa Rampersaud, Aware Deshmukh, Ruth Angus, Malena Rice   +8 more
doaj   +1 more source

Electronic Structure Reorganization in MPS3 via d‐Shell‐Selective Alkali Metal Doping

Advanced Science, EarlyView.
Alkali metal doping of layered MPS3 antiferromagnets reveals d‐shell‐selective responses. While MnPS3 resists charge transfer due to its half‐filled 3d5 shell, FePS3 and NiPS3 behave similarly to CoPS3 by accommodating extra d‐electrons. Yet only CoPS3, with its least stable d‐shell, undergoes pronounced band restructuring and a semiconducting‐to ...
Jonah Elias Nitschke, Preeti Bhumla, Till Willershausen, Patrick Merisescu, David Maximilian Janas, Lasse Sternemann, Michael Gutnikov, Karl Schiller, Valentin Mischke, Michele Capra, Mira Sophie Arndt, Silvana Botti, Mirko Cinchetti   +12 more
wiley   +1 more source

From planetesimals to planets with N-body simulations in the giant-planet formation region

Astronomy & Astrophysics
The cores of wide-orbit giant planets can form via pebble accretion if large planetesimals form in the outer regions of protoplanetary discs at sufficiently early times.
Lorek Sebastian, Lambrechts Michiel
doaj   +1 more source

Overcoming the Trade‐Off Between Magnetic Coupling and Electrical Insulation in Soft Magnetic Materials via Nanochain Engineering

Advanced Science, EarlyView.
This study employs a nanochain engineering approach combined with an in situ oxidation strategy to fabricate self‐insulating iron‐based magnetic nanochains, addressing the challenge of balancing magnetic coupling and electrical insulation in soft magnetic materials.
Dingrong Zuo, Lichen Liu, Haibo Ke, Rongsheng Bai, Huaping Ding, Jing Zhou, Zhenxiang Cheng, Peng Yu, Weihua Wang   +8 more
wiley   +1 more source

Minor planet 1566 Icarus: Asteroid or comet? [PDF]

By employing a cometary nongravitational force model, based on the outgassing of a water ice nucleus, the orbital fits to the optical and radar astrometric data are improved for both Apollo and Icarus.
Yeomans, Donald K.
core   +1 more source

Minor Planet Satellites [PDF]

Science, 1981
openaire   +2 more sources

Minor planet astrophotometry [PDF]

, 2013
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 ...
openaire   +1 more source