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Related papers: The potential of sparse photometric data in astero…

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We present 24 new dense lightcurves of the near-Earth asteroids (3103) Eger, (161989) Cacus, (2100) Ra-Shalom and (12711) Tukmit, obtained with the Instituto Astrof\'isico Canarias 80 and Telescopio Abierto Remoto 2 telescopes at the Teide…

Asteroid phase curves are used to derive fundamental physical properties through the determination of the absolute magnitude H. The upcoming visible Legacy Survey of Space and Time (LSST) and mid-infrared Near-Earth Object Surveillance…

Earth and Planetary Astrophysics · Physics 2020-09-30 M. Mahlke , B. Carry , L. Denneau

The wavelength dependence of atmospheric refraction causes differential chromatic refraction (DCR), whereby objects imaged at different optical/UV wavelengths are observed at slightly different positions in the plane of the detector. Strong…

Astrophysics of Galaxies · Physics 2014-11-18 Michael C. Kaczmarczik , Gordon T. Richards , Sajjan S. Mehta , David J. Schlegel

(3200) Phaethon exhibits both comet- and asteroid-like properties, suggesting it could be a rare transitional object such as a dormant comet or previously volatile-rich asteroid. This justifies detailed study of (3200) Phaethon's physical…

Earth and Planetary Astrophysics · Physics 2015-06-22 Megan Ansdell , Karen J. Meech , Olivier Hainaut , Marc W. Buie , Heather Kaluna , James Bauer , Luke Dundon

We present a review of the problem of asteroid shape and spin reconstruction from generalised projections; i.e., from lightcurves, disk-resolved images, occultation silhouettes, radar range-Doppler data, and interferometry. The aim of this…

Earth and Planetary Astrophysics · Physics 2020-05-21 Mikko Kaasalainen , Josef Durech

We introduce a novel algorithm, $\textit{COD}$ -- Compact Opacity Distribution, for shape reconstruction of a celestial body that has been observed to occult a star, using the photometric time-series observations of the occultation.…

Instrumentation and Methods for Astrophysics · Physics 2022-02-08 Gil Nachmani , Tsevi Mazeh , Nir Sochen

We describe photometric recalibration of data obtained by the asteroid survey LINEAR. Although LINEAR was designed for astrometric discovery of moving objects, the dataset described here contains over 5 billion photometric measurements for…

Astrophysics of Galaxies · Physics 2015-05-30 Branimir Sesar , J. Scott Stuart , Željko Ivezić , Dylan P. Morgan , Andrew C. Becker , Przemysław Woźniak

The rest-frame UV/optical variability of the quasars in the Sloan Digital Sky Survey (SDSS) Stripe 82 is used to test the Corona-Heated Accretion-disk Reprocessing (CHAR) model of Sun et al. 2020. We adopt our CHAR model and the observed…

High Energy Astrophysical Phenomena · Physics 2020-10-14 Mouyuan Sun , Yongquan Xue , Hengxiao Guo , Junxian Wang , W. N. Brandt , Jonathan R. Trump , Zhicheng He , Tong Liu , Jianfeng Wu , Haikun Li

Photometric variability of chemically peculiar (CP) stars of the upper main sequence is closely connected to their local stellar magnetic field and their rotational period. Long term investigations, as presented here, help us to identify…

Solar and Stellar Astrophysics · Physics 2015-05-20 E. Paunzen , H. Hensberge , H. M. Maitzen , M. Netopil , C. Trigilio , L. Fossati , U. Heiter , M. Pranka

Super-fast rotators (SFRs; P < 2.2 hr) are of great importance in asteroid studies; yet, many reported detections suffer from aliasing caused by an insufficient observation cadence. We present dense CCD photometry for 15 SFRs candidates (14…

Earth and Planetary Astrophysics · Physics 2025-09-09 Bojan Novaković , Pedro J. Gutiérrez

The (magnetic) chemically peculiar (CP) stars of the upper main sequence are well-suited laboratories for investigating the influence of magnetic fields on the stellar surface because they produce abundance inhomogeneities (spots), which…

Solar and Stellar Astrophysics · Physics 2015-09-30 K. Bernhard , S. Huemmerich , S. Otero , E. Paunzen

Deriving high quality lightcuves for asteroids and other periodic sources from survey data is challenging due to many factors, including the sparsely sampled observational record and diurnal aliasing which is a signature imparted into the…

Earth and Planetary Astrophysics · Physics 2024-08-09 Michael Gowanlock , David E. Trilling , Andrew McNeill , Daniel Kramer , Maria Chernyavskaya

Between 2010 and 2017 we have collected new optical and radar observations of the potentially hazardous asteroid (2102)~Tantalus from the ESO NTT and Danish telescopes at the La Silla Observatory and from the Arecibo planetary radar. The…

Thermophysical Models (TPMs), which have proven to be a powerful tool in the interpretation of the infrared emission of asteroid surfaces, typically make use of a priori obtained shape models and spin axes for use as input boundary…

Earth and Planetary Astrophysics · Physics 2020-10-22 Eric M. MacLennan , Joshua P. Emery

Future photometric supernova surveys will produce vastly more candidates than can be followed up spectroscopically, highlighting the need for effective classification methods based on lightcurves alone. Here we introduce boosting and kernel…

We present the project Asteroids@home that uses distributed computing to solve the time-consuming inverse problem of shape reconstruction of asteroids. The project uses the Berkeley Open Infrastructure for Network Computing (BOINC)…

Earth and Planetary Astrophysics · Physics 2015-11-30 Josef Durech , Josef Hanus , Radim Vanco

We present an improved photometric error analysis for the 7,100 CRTS (Catalina Real-Time Transient Survey) optical light curves for quasars from the SDSS (Sloan Digital Sky Survey) Stripe 82 catalogue. The SDSS imaging survey has provided a…

Astrophysics of Galaxies · Physics 2017-12-07 Krzysztof Suberlak , Željko Ivezić , Chelsea L. MacLeod , Matthew Graham , Branimir Sesar

The Pan-STARRS1 survey is obtaining multi-epoch imaging in 5 bands (gps rps ips zps yps) over the entire sky North of declination -30deg. We describe here the implementation of the Photometric Classification Server (PCS) for Pan-STARRS1.…

The taxonomic classification of asteroids has been mostly based on spectroscopic observations with wavelengths spanning from the VIS to the NIR. VIS-NIR spectra of $\sim$2500 asteroids have been obtained since the 1970s; the SDSS MOC 4 was…

Earth and Planetary Astrophysics · Physics 2022-08-10 Dong-Goo Roh , Hong-Kyu Moon , Min-Su Shin , Francesca E. DeMeo

The nature and physical properties of asteroids, in particular those orbiting in the near-Earth space, are of scientific interest and practical importance. Exoplanet surveys can be excellent resources to detect asteroids, both already known…

Earth and Planetary Astrophysics · Physics 2020-01-08 M. Cortés-Contreras , F. M. Jiménez-Esteban , M. Mahlke , E. Solano , J. Ďurech , S. Barceló Forteza , C. Rodrigo , A. Velasco , B. Carry