English
Related papers

Related papers: Observing Near Earth Asteroids with a Small Telesc…

200 papers

As part of our multi-observatory, multi-filter campaign, we present \rmi color observations of 82 Near-Earth Objects (NEOs) obtained with the RATIR instrument on the 1.5m robotic telescope at the San Pedro Martir's National Observatory in…

Astronomical facilities at the high-altitude observatory Terskol in the Northern Caucasus include optical telescopes with diameters up to 2 m, their instrumentation (high-resolution spectrometers, high-speed photometers, CCDs, etc.), as…

Instrumentation and Methods for Astrophysics · Physics 2010-03-26 V. Tarady , O. Sergeev , M. Karpov , B. Zhilyaev , V. Godunova

Context: Observation of star occultations is a powerful tool to determine shapes and sizes of asteroids. This is key information necessary for studying the evolution of the asteroid belt and to calibrate indirect methods of size…

Astrophysics · Physics 2009-06-23 P. Tanga , M. Delbo

The challenge for optical detection of terrestial planet is the 25 magnitude brightness contrast between the planet and its host star. This paper introduces a new pupil design that produces a very dark null along its symmetry axis. By…

Astrophysics · Physics 2007-05-23 David N. Spergel

This paper describes the aims, objectives and first results of the observational program for the study of distant core-collapse supernovae (SNe) with redshifts z < 0.3. This work is done within the framework of an international cooperation…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 A. S. Moskvitin , T. A. Fatkhullin , V. V. Sokolov , V. N. Komarova , A. J. Drake , R. Roy , D. Yu. Tsvetkov

While Transiting Exoplanet Survey Satellite (TESS) covers a considerable area of the sky during routine observations and the pointing schedule is easy to follow, it is not obvious to retrieve the current and/or predicted visibility of a…

Instrumentation and Methods for Astrophysics · Physics 2020-12-03 András Pál

Nowadays many telescopes around the world are automated and some networks of robotic telescopes are active or planned as shown by the lists we draw up. Such equipment could be used for the training of students and for science in the…

Astrophysics · Physics 2007-05-23 F. R. Querci , M. Querci

In this paper we approach the astronomy teaching process for the students in computer sciences through the controlled investigation method on real astronomical data, using data reduction and quality control of the astrometry of near-Earth…

Instrumentation and Methods for Astrophysics · Physics 2018-02-26 A. L. Boldea , O. Vaduvescu

Near Earth Objects (NEOs) are fragments of remnant primitive bodies that date from the era of Solar System formation. At present, the physical properties and origins of NEOs are poorly understood. We have measured thermal emission from…

The Einstein rings and proper motions of nearby stars tend to be large. Thus, every year some foreground stars within a few hundred parsecs of Earth induce gravitational lensing events in background stars. In some of these cases, the events…

Earth and Planetary Astrophysics · Physics 2015-06-04 Rosanne Di Stefano , James Matthews , Sebastien Lepine

In 2005, the United States Congress passed a bill mandating the detection, tracking, cataloguing and characterization of 90\% of the 140 meter and larger near-Earth objects (NEOs) by 2020. At the deadline $\sim$35\% were detected, tracked…

Earth and Planetary Astrophysics · Physics 2023-01-30 Nathan Golovich

Nearby giant exoplanets offer an opportunity to search for moons (exomoons) orbiting them. Here, we present a simulation framework for investigating the possibilities of detecting exomoons via their astrometric signal in planet-to-star…

Earth and Planetary Astrophysics · Physics 2025-09-18 Kevin Wagner , Ewan Douglas , Steve Ertel , Kyran Grattan , S. Pete Worden , Aniket Sanghi , Billy Quarles , Charles Beichman

Cosmology experiments at mm-wavelengths can detect Planet Nine if it is the size of Neptune, has an effective temperature of 40 K, and is 700 AU from the Sun. It would appear as a ~30 mJy source at 1 mm with an annual parallax of ~5 arcmin.…

Earth and Planetary Astrophysics · Physics 2016-04-27 Nicolas B. Cowan , Gil Holder , Nathan A. Kaib

As astronomical photometric surveys continue to tile the sky repeatedly, the potential to pushdetection thresholds to fainter limits increases; however, traditional digital-tracking methods cannotachieve this efficiently beyond time scales…

Earth and Planetary Astrophysics · Physics 2021-04-09 Nathan Golovich , Noah Lifset , Robert Armstrong , Eric Green , Michael D. Schneider , Roger Pearce

Since July 2014, the ESA Gaia mission has been surveying the entire sky down to magnitude 20.7 in the visible. In addition to the millions of stars, thousands of Solar System Objects (SSOs) are observed daily. By comparing their positions…

The subject of this work is the physical characterization of asteroids, focusing on the thermal inertia of near-Earth asteroids (NEAs). Thermal inertia governs the Yarkovsky effect, a non-gravitational force which significantly alters the…

Earth and Planetary Astrophysics · Physics 2012-08-21 Michael Mueller

In 1998 the EXPORT team monitored microlensing event lightcurves using a CCD camera on the IAC 0.8m telescope on Tenerife to evaluate the prospect of using northern telescopes to find microlens anomalies that reveal planets orbiting the…

Astrophysics · Physics 2009-11-06 Y. Tsapras , R. Street , K. Horne

We discuss the feasibility of and present initial designs and approximate cost estimates for a large ($N\sim2000$) network of small photometric telescopes that is purpose-built to monitor $V \lesssim 15$ Gaia Mission program stars for…

Earth and Planetary Astrophysics · Physics 2019-06-26 Malena Rice , Gregory Laughlin

The small solar-system bodies that reside between 30 and 50 AU are often referred to as the Trans Neptunian Objects, or TNOs. A far-infrared (FIR) mission with survey capabilities, like the prospective Cryogenic Aperture Large Infrared…

Earth and Planetary Astrophysics · Physics 2015-05-19 J. M. Bauer , P. F. Goldsmith , C. M. Bradford , A. J. Lovell

The Wide-field Infrared Survey Explorer and NEOWISE missions are a key source of thermal data for near-Earth asteroids (NEAs). These missions, which utilized a space-based platform in Earth orbit, produced thermal images across four…