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Related papers: Microlens Surveys are a Powerful Probe of Asteroid…

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We use nearly 20 years of photometry obtained by the OGLE survey to measure the occurrence rate of wide-orbit (or ice giant) microlensing planets, i.e., with separations from ~5 AU to ~15 AU and mass-ratios from $10^{-4}$ to 0.033. In a…

Earth and Planetary Astrophysics · Physics 2021-10-29 R. Poleski , J. Skowron , P. Mróz , A. Udalski , M. K. Szymański , P. Pietrukowicz , K. Ulaczyk , K. Rybicki , P. Iwanek , M. Wrona , M. Gromadzki

The rotational properties of small near-Earth asteroids (NEAs) provide crucial insights into their internal structure and collisional history. However, systematic surveys targeting metre- to decametre-sized bodies are rare, thus leaving…

Earth and Planetary Astrophysics · Physics 2026-02-24 Miguel R. Alarcon , Javier Licandro , Miquel Serra-Ricart

We report a detection of statistically significant color variations for a sample of 7,531 multiply observed asteroids that are listed in the Sloan Digital Sky Survey Moving Object Catalog. Using 5-band photometric observations accurate to…

Astrophysics · Physics 2009-03-09 G. Szabo , Z. Ivezic , M. Juric , R. H. Lupton , L. L. Kiss

We discuss measurements of the properties of about 10,000 asteroids detected in 500 deg2 of sky in the Sloan Digital Sky Survey (SDSS) commissioning data. The moving objects are detected in the magnitude range 14 < r < 21.5, with a baseline…

Astrophysics · Physics 2008-11-26 Z. Ivezic , S. Tabachnik , R. Rafikov , R. H. Lupton , T. Quinn , M. Hammergren , L. Eyer et al

The Large Synoptic Survey Telescope (LSST) will be a ground-based, optical, all-sky, rapid cadence survey project with tremendous potential for discovering and characterizing asteroids. With LSST's large 6.5m diameter primary mirror, a wide…

Instrumentation and Methods for Astrophysics · Physics 2016-03-16 R. Lynne Jones , Mario Juric , Zeljko Ivezic

Asteroids can be considered as sources of contamination of point sources and also sources of confusion noise, depending whether their presence is detected in the image or their flux is under the detection limit. We estimate that at low…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 Gy. M. Szabo , A. E. Simon

Using a fully autonomous spacecraft - Bering - we propose to detect and study sub-km asteroids from an orbit within the asteroid Main Belt. The main purpose of the proposed Bering mission is to detect a statistically significant sample of…

We report on the first results from a large-scale observing campaign aiming to use astrometric microlensing to detect and place limits on the mass of single objects, including stellar remnants. We used the Hubble Space Telescope to monitor…

Solar and Stellar Astrophysics · Physics 2017-08-02 Noé Kains , A. Calamida , K. C. Sahu , S. Casertano , J. Anderson , A. Udalski , M. Zoccali , H. Bond , M. Albrow , I. Bond , T. Brown , M. Dominik , C. Fryer , M. Livio , S. Mao , M. Rejkuba

We fit 54,296 sparsely-sampled asteroid lightcurves in the Palomar Transient Factory to a combined rotation plus phase-function model. Each lightcurve consists of 20+ observations acquired in a single opposition. Using 805 asteroids in our…

The analysis of the first two years of OGLE data revealed 9 microlensing events of the galactic bulge stars, with the characteristic time scales in the range $ 8.6 < t_0 < 62 $ days, where $ t_0 = R_E / V $. The optical depth to…

Astrophysics · Physics 2008-12-18 B. Paczynski , K. Z. Stanek , A. Udalski , M. Szymanski , J. Kaluzny , M. Kubiak , M. Mateo , W. Krzeminski

The ongoing microlensing searches have generated more photometric measurements of pulsating stars than all previous observing projects combined. In particular, OGLE has made ~ 340,000 B, V, and I-band measurements of ~ 1,300 Cepheids in the…

Astrophysics · Physics 2007-05-23 Bohdan Paczynski

Microlensing is sensitive to binary, brown dwarf, and planetary companions to normal stars in the Galactic bulge with separations between about 1-10 AU. The accurate, densely-sampled photometry of microlensing events needed to detect…

Astrophysics · Physics 2007-05-23 B. Scott Gaudi

The Planck mission, originally devised for cosmological studies, offers the opportunity to observe Solar System objects at millimetric and submillimetric wavelengths. We concentrate in this paper on the asteroids of the Main Belt. We intend…

Astrophysics · Physics 2009-11-07 G. Cremonese , F. Marzari , C. Burigana , M. Maris

We present analysis of the asteroid surface density distribution of main belt asteroids (mean perihelion $\Delta \simeq 2.404$ AU) in five ecliptic latitude fields, $-17 \gtsimeq \beta(\degr) \ltsimeq +15$, derived from deep \textit{Large…

We present here the discovery of a new class of super-slow rotating asteroids (P>1000 hours) in data extracted from the Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky Transient Facility (ZTF) all-sky surveys. Of the 39…

Earth and Planetary Astrophysics · Physics 2021-07-21 N. Erasmus , D. Kramer , A. McNeill , D. E. Trilling , P. Janse van Rensburg , G. T. van Belle , J. L. Tonry , L. Denneau , A. Heinze , H. J. Weiland

The UKIRT Hemisphere Survey covers the northern sky in the infrared from 0-60 degrees declination. Current data releases include both J and K bands, with H-band data forthcoming. Here we present a novel pipeline to recover asteroids from…

Context. To investigate the distribution of rotation periods of asteroids from different regions of the Solar System and distribution of diameters of near-Earth asteroids (NEAs). Aims. Verify if nonextensive statistics satisfactorily…

Earth and Planetary Astrophysics · Physics 2012-05-29 Alberto S. Betzler , Ernesto P. Borges

We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short duration (~1 day) deviation on the smooth, symmetric light curve…

We discuss several results made possible by accurate SDSS astrometric measurements in a large sky area, with emphasis on asteroids and stellar proper motions obtained by comparing POSS and SDSS. SDSS has observed over 200,000 moving objects…