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相关论文: Shape and spin determination of Barbarian asteroid…

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We present lightcurves, shapes, and a 3D convex spin-axis model for the main-belt asteroid (2501) Lohja. The models were obtained with the lightcurve inversion process using combined dense photometric data from the apparitions between years…

地球与行星天体物理 · 物理学 2018-03-02 M. Husárik

Context. Binary asteroids are present in all populations of the Solar System, from near-Earth to trans-Neptunian regions. As is true for the small Solar System bodies (SSSBs), binary asteroids generally offer valuable insights into the…

地球与行星天体物理 · 物理学 2025-03-18 Ziyu Liu , Daniel Hestroffer , Josselin Desmars , Pedro David

Multi-epoch Spitzer Space Telescope 24 micron data is utilized from the MIPSGAL and Taurus Legacy surveys to detect asteroids based on their relative motion. These infrared detections are matched to known asteroids and rotationally averaged…

In a previous article, we obtained the first-ever list of astrometric binary asteroid candidates. Some of these candidates have now been confirmed. In that previous work, however, the details of the statistical methods were not provided.…

We present the first results of our survey of asteroid polarization-phase curves in the near-infrared J and H bands using the WIRC+Pol instrument on the Palomar 200-inch telescope. We confirm through observations of standard stars that…

地球与行星天体物理 · 物理学 2022-03-30 Joseph R. Masiero , S. Tinyanont , Maxwell A. Millar-Blanchaer

Investigations of the main asteroid belt and efforts to constrain that population's physical characteristics involve the daunting task of studying hundreds of thousands of small bodies. Taxonomic systems are routinely employed to study the…

In recent years, several protoplanetary discs have been observed to exhibit spirals, both in scattered light and (sub)millimetre continuum data. The HD 100453 binary star system hosts such a disc around its primary. Previous work has argued…

The size-dependent effects of asteroids on surface regolith and collisional lifetimes suggest that small asteroids are younger than large asteroids. In this study, we performed multicolor main-belt asteroid (MBA) survey by Subaru…

地球与行星天体物理 · 物理学 2015-06-24 H. W. Lin , Fumi Yoshida , Y. T. Chen , W. H. Ip , C. K. Chang

The rotation state of small asteroids is affected in the long term by perturbing torques of gravitational and radiative origin (the YORP effect). Direct observational evidence of the YORP effect is the primary goal of our work. We carried…

The research about asteroids attracts more and more attention recently, especially focusing on their physical structures, such as the spin axis, the rotation period and the shape. The long distance between Earth observers and asteroids…

天体物理仪器与方法 · 物理学 2015-06-12 Xiaoping Lu , Haibin Zhao , Zhong You

Rotation properties (spin-axis direction and rotation period) and coarse shape models of asteroids can be reconstructed from their disk-integrated brightness when measured from various viewing geometries. These physical properties are…

地球与行星天体物理 · 物理学 2019-10-16 Josef Durech , Josef Hanus , Radim Vanco

We investigate the structure of the O-type binary system HD 48099 by measuring linear polarization that arises due to light scattering process. Linear polarization measurements of HD 48099 in the B, V and R passbands with the high-precision…

太阳与恒星天体物理 · 物理学 2016-06-02 A. Berdyugin , V. Piirola , S. Sadegi , S. Tsygankov , T. Sakanoi , M. Kagitani , M. Yoneda , S. Okano , J. Poutanen

We present an analysis of the albedo properties of main belt asteroids detected by the All-Sky Survey of the infrared satellite AKARI. The characteristics of 5120 asteroids detected by the survey, including their sizes and albedos, were…

We describe in this work a thorough study of the physical and orbital characteristics of extensively observed main-belt and Trojan binaries, mainly taken from the LAOSA (Large Adaptive Optics Survey of Asteroids, Marchis et al., 2006c)…

天体物理学 · 物理学 2009-11-13 Pascal Descamps , Franck Marchis

This study examines the rotational characteristics of asteroids through statistical modeling of the diameter-period relationship. A statistical evaluation of the diameter-period relationship was conducted using a dataset of 34,326…

地球与行星天体物理 · 物理学 2025-08-26 Maryam Nastaran , Atila Poro , Raziyeh Hosseini , Matin Najarzadeh

There has recently been growing evidence that broad-line regions (BLRs) in active galactic nuclei have regular substructures, such as spiral arms, which are supported by the fact that the radii of BLRs measured by RM observations are…

星系天体物理 · 物理学 2023-03-01 Pu Du , Jian-Min Wang

Most asteroids are somewhat elongated and have non-zero lightcurve amplitudes. Such asteroids can be detected in large-scale sky surveys even if their mean magnitudes are fainter than the stated sensitivity limits. We explore the detection…

地球与行星天体物理 · 物理学 2021-05-21 Samuel Navarro-Meza , Erin Aadland , David Trilling

We investigated the size distribution of high-inclination main-belt asteroids (MBAs) to explore asteroid collisional evolution under hypervelocity collisions of around 10 km/s. We performed a wide-field survey for high-inclination sub-km…

地球与行星天体物理 · 物理学 2015-05-20 Tsuyoshi Terai , Yoichi Itoh

Active galactic nuclei come in many varieties. A minority of them are radio-loud, and exhibit two opposite prominent plasma jets extending from the proximity of the supermassive black hole up to megaparsec distances. When one of the…

高能天体物理现象 · 物理学 2021-06-14 Claudia M. Raiteri , Massimo Villata

Context. Many databases on asteroid brightnesses (e.g. ALCDEF, WISE) are potential sources for extensive asteroid shape and spin modelling. Individual lightcurve inversion models require several apparitions and hundreds of data points per…

地球与行星天体物理 · 物理学 2017-05-24 H. Nortunen , M. Kaasalainen , J. Ďurech , H. Cibulková , V. Ali-Lagoa , J. Hanuš