Results 31 to 40 of about 9,728 (156)
The Planetary Science Journal, 2023 Using Fisher information matrices, we forecast the uncertainties σ _M on the measurement of a “Planet X” at heliocentric distance d _X via its tidal gravitational field’s action on the known planets.
Daniel C. H. Gomes +4 more
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ASTEROIDS EXPLORATION WITH BALDONE SCHMIDT TELE-SCOPE
Odessa Astronomical Publications, 2018 CCD observations of asteroids were ob-tained in 2008 with the Baldone Schmidt telescope (aper-ture/diameter/focal length = 80/120/240 cm) at the Bal-done Astrophysical observatory (code 069) of the Institute of Astronomy of the University of Latvia.
I. Eglitis
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A tidally detached super Neptune on a strongly misaligned retrograde orbit
Astronomy & AstrophysicsThe obliquity between a planet’s orbital axis and its host star’s spin axis provides crucial insights into planetary formation and migration. Planets with scaled semi-major axes (a/R★) large enough to be unaffected by tidal alterations (‘tidally detached’
Mantovan G. +20 more
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Tracing Planets in Circumstellar Discs
EPJ Web of Conferences, 2013 Planets are assumed to form in circumstellar discs around young stellar objects. The additional gravitational potential of a planet perturbs the disc and leads to characteristic structures, i.e. spiral waves and gaps, in the disc density profile.
Uribe Ana L. +3 more
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The Astrophysical Journal Letters, 2023 Climate modeling has shown that tidally influenced terrestrial exoplanets, particularly those orbiting M-dwarfs, have unique atmospheric dynamics and surface conditions that may enhance their likelihood to host viable habitats.
Howard Chen +3 more
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A Pan-STARRS Search for Distant Planets: Part 1
The Planetary Science JournalWe present a search for distant planets in Pan-STARRS1. We calibrated our search by injecting an isotropic control population of synthetic detections into Pan-STARRS1 source catalogs, providing a high-fidelity alternative to injecting synthetic sources ...
Matthew J. Holman +3 more
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Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method
Journal of Astronomy and Space Sciences, 2020 This paper presents a methodology for Initial Orbit Determination (IOD) based on a modification of the Laplace’s geocentric method. The orbital elements for Near-Earth asteroids (1864) Daedalus, 2003 GW, 2019 JA8, a Hungaria-type asteroid (4690 ...
Daniela Espitia +2 more
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Reprocessing the NEAT Data Set: Preliminary Results
The Planetary Science JournalWe have created a new image analysis pipeline to reprocess images taken by the Near Earth Asteroid Tracking survey and have applied it to 10 nights of observations.
C. R. Nugent +18 more
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Puffed-up Inner Rings and Razor-thin Outer Rings in Structured Protoplanetary Disks
The Astrophysical JournalThe vertical distribution of pebbles in protoplanetary disks is a fundamental property influencing planet formation, from dust aggregation to the assembly of planetary cores.
Haochang Jiang +10 more
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