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The Large Synoptic Survey Telescope (LSST) will photometrically monitor approximately 1 billion stars for ten years. The resulting light curves can be used to detect transiting exoplanets. In particular, as demonstrated by Lund et al.…

地球与行星天体物理 · 物理学 2015-07-24 Savannah R. Jacklin , Michael B. Lund , Joshua Pepper , Keivan G. Stassun

The Vera C. Rubin Observatory is expected to start the Legacy Survey of Space and Time (LSST) in early to mid-2025. This multi-band wide-field synoptic survey will transform our view of the solar system, with the discovery and monitoring of…

As part of NASA's mission to explore habitable planets orbiting nearby stars, this paper explores the detection and characterization capabilities of a 4-m space telescope plus 50-m starshade located at the Earth-Sun L2 point, a.k.a. the New…

天体物理仪器与方法 · 物理学 2015-06-04 Margaret C. Turnbull , Tiffany Glassman , Aki Roberge , Webster Cash , Charley Noecker , Amy Lo , Brian Mason , Phil Oakley , John Bally

With the NEOWISE portion of the \emph{Wide-field Infrared Survey Explorer} (WISE) project, we have carried out a highly uniform survey of the near-Earth object (NEO) population at thermal infrared wavelengths ranging from 3 to 22 $\mu$m,…

The detection and accurate astrometry of fast-moving near-Earth objects (NEOs) has been a challenge for the follow-up community. Their fast apparent motion results in streaks in sidereal images, thus affecting the telescope's limiting…

We propose to use a modest fraction of the re-purposed Kepler mission time and apertures to greatly increase the quantity and quality of our knowledge of near-Earth asteroids (NEAs) rotation and shape. NEAs are important for understanding…

地球与行星天体物理 · 物理学 2013-09-11 Martin Elvis , José Luis Galache , Gareth V. Williams

Near-Earth Objects (NEOs) are asteroids, comets and meteoroids in heliocentric orbits with perihelion below 1.3 au. Similarly to the population of the Main Asteroid Belt, NEOs are primordial bodies and their study can improve our…

地球与行星天体物理 · 物理学 2024-07-01 Elena Fantino , Roberto Flores , Giuseppe Donnarumma , David Canales , Kathleen C. Howell

The discovery of two interstellar objects passing through the Solar System, 1I/`Oumuamua and 2I/Borisov, implies that a galactic population exists with a spatial number density of order $\sim0.1$ au$^{-3}$. The forthcoming Rubin Observatory…

地球与行星天体物理 · 物理学 2023-10-27 Dušan Marčeta , Darryl Z. Seligman

We consider a network of telescopes capable of scanning all the observable sky each night and targeting Near-Earth objects (NEOs) in the size range of the Tunguska-like asteroids, from 160 m down to 10 m. We measure the performance of this…

天体物理仪器与方法 · 物理学 2015-05-30 D. Farnocchia , F. Bernardi , G. B. Valsecchi

We study the time evolution of the impact probability for synthetic but realistic impacting and close approaching asteroids detected in a simulated all-sky survey. We use the impact probability to calculate the impact warning time as the…

地球与行星天体物理 · 物理学 2015-08-26 Peter Vereš , Davide Farnocchia , Robert Jedicke , Federica Spoto

The observation of small bodies in the Space Environment is an ongoing important task in astronomy. While nowadays new objects are mostly detected in larger sky surveys, several follow-up observations are usually needed for each object to…

The NEAT (Nearby Earth Astrometric Telescope) mission is a proposition submitted to ESA for its 2010 call for M-size mission. The main scientific goal is to detect and characterize planetary systems in an exhaustive way down to 1 Earth mass…

天体物理仪器与方法 · 物理学 2019-08-13 F. Malbet , A. Léger , R. Goullioud , M. Shao , P. -O. Lagage , C. Cara , G. Durand , P. Feautrier , B. Jakobsson , E. Hinglais , M. Mercier

Catalina Sky Survey (CSS) is a major survey of Near-Earth Objects (NEOs). In a recent work, we used CSS observations from 2005-2012 to develop a new population model of NEOs (NEOMOD). CSS's G96 telescope was upgraded in 2016 and detected…

The Vera C. Rubin Observatory's Legacy Survey of Space and Time is forecast to collect a large sample of Type Ia supernovae (SNe Ia) that could be instrumental in unveiling the nature of Dark Energy. The feat, however, requires measuring…

We present an approach that significantly increases the sensitivity for finding and tracking small and fast near Earth asteroids (NEA's). This approach relies on a combined use of a new generation of high-speed cameras which allow short,…

天体物理仪器与方法 · 物理学 2014-08-20 Michael Shao , Bijan Nemati , Chengxing Zhai , Slava G. Turyshev , Jagmit Sandhu , Gregg W. Hallinan , Leon K. Harding

Modern astronomical surveys detect asteroids by linking together their appearances across multiple images taken over time. This approach faces limitations in detecting faint asteroids and handling the computational complexity of trajectory…

地球与行星天体物理 · 物理学 2025-09-25 Nathan Golovich , Trevor Steil , Alex Geringer-Sameth , Keita Iwabuchi , Ryan Dozier , Roger Pearce

The previous decade saw the discovery of the first four known interstellar objects due to advances in astronomical viewing equipment. Future sky surveys with greater sensitivity will allow for more frequent detections of such objects,…

天体物理仪器与方法 · 物理学 2023-03-28 Carson Ezell , Abraham Loeb

In the absence of dense photometry for a large population of Near Earth Objects (NEOs), the best method of obtaining a shape distribution comes from sparse photometry and partial lightcurves. We have used 867 partial lightcurves obtained by…

地球与行星天体物理 · 物理学 2019-04-10 Andrew McNeill , Joseph L. Hora , Annika Gustafsson , David E. Trilling , Michael Mommert

Recent discoveries of multiple long-period pulsars (periods ${\sim}10\,$s or larger) are starting to challenge the conventional notion that coherent radio emission cannot be produced by objects that are below the many theorised death lines.…

高能天体物理现象 · 物理学 2024-09-23 G. Grover , N. D. R. Bhat , S. J. McSweeney

Near Earth Objects (NEOs) are small Solar System bodies whose orbits bring them close to the Earth's orbit. We are carrying out a Warm Spitzer Cycle 11 Exploration Science program entitled NEOSurvey --- a fast and efficient flux-limited…