Results 81 to 90 of about 21,714 (161)

Celestial shadows: eclipses, transits, and occultations

open access: yes, 2015
Much of what is known about the universe comes from the study of celestial shadows—eclipses, transits, and occultations.  The most dramatic are total eclipses of the Sun, which constitute one of the most dramatic and awe-inspiring events of nature ...
Westfall, John, Sheehan, William
core   +1 more source

Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b

open access: yesThe Astronomical Journal
The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these residents of the Hot Neptune Desert have similar origins to smaller, rocky USPs, or if this discrete ...
Emma Nabbie   +47 more
doaj   +1 more source

TRANSITS I - Operational Module

open access: yes, 2023
<p>The TRANSITS I - Operational Module provides a detailed exploration of the processes and challenges involved in Computer Security Incident Response Team (CSIRT) operations.
Gapiński, Kamil   +6 more
core  

Sporadic Dips from Extended Debris Transiting the Metal-rich White Dwarf SBSS 1232+563

open access: yesThe Astrophysical Journal
We present the discovery of deep but sporadic transits in the flux of SBSS 1232+563, a metal-rich white dwarf polluted by disrupted exoplanetary debris.
J. J. Hermes   +7 more
doaj   +1 more source

A Short History of (Orbital) Decay: Roman’s Prospects for Detecting Dying Planets

open access: yesThe Astronomical Journal
The Roman Space Telescope Galactic Bulge Time Domain Survey (GBTDS) is expected to detect ∼10 ^5 transiting planets. Many of these planets will have short orbital periods and are thus susceptible to tidal decay.
Kylee Carden   +2 more
doaj   +1 more source

Comparing Results from Two Uniform Phase-curve Surveys

open access: yesThe Astronomical Journal
We present a comparison of the two most recent and comprehensive Spitzer phase curve studies—L. Dang et al. and M. R. Swain et al.—which report analyses of the Spitzer 4.5 μ m phase curves.
Emeline Decocq   +4 more
doaj   +1 more source

Overcoming machine learning training data imbalance by simulating exoplanet transits [PDF]

open access: yes
We propose to use simulations of exoplanet transits to improve training outcomes for Machine Learning models. Machine learning has huge potential in exoplanet detection but faces challenges due to data imbalance and lack of ground truth in observational ...
Creaner, Oisin, Gorchakova, Nika
core  

Transits in Multiple Planet Systems

open access: yes, 2010
Surveys for transiting extrasolar planets, including the space-based missions CoRoT and Kepler, are expected to detect hundreds of Jovian mass planets and tens of terrestrial mass planets. For many of these newly discovered planets, the intervals between
M. J. Holman
core   +1 more source

Decreased gastric emptying and gastrointestinal and intestinal transits of liquid after complete spinal cord transection in awake rats

open access: yesBrazilian Journal of Medical and Biological Research, 1998
We studied the effect of complete spinal cord transection (SCT) on gastric emptying (GE) and on gastrointestinal (GI) and intestinal transits of liquid in awake rats using the phenol red method.
Gondim F. de-A.A.   +5 more
doaj  

A Deep Search for Exomoons around WISE 0855 with JWST

open access: yesThe Astronomical Journal
The James Webb Space Telescope (JWST) is collecting time-series observations of many free-floating planets (FFPs) to study their weather, but these light curves provide ideal datasets for locating exomoons that transit FFPs during observations.
Mikayla J. Wilson   +13 more
doaj   +1 more source

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