Results 131 to 140 of about 2,057,964 (253)

A radiometric model for demonstration of exoplanets detection by the transit method

open access: yesPhysics Education
Abstract This work describes an exact radiometric model for experimental demonstrators of the detection of exoplanets by the transit method. This model generalises the calculation of the depth of occultation from the standard transit method to the case of a finite size demonstrator apparatus.
T M Seixas, M A Salgueiro da Silva
openaire   +1 more source

EUCLID : Dark Universe Probe and Microlensing planet Hunter

open access: yes, 2010
There is a remarkable synergy between requirements for Dark Energy probes by cosmic shear measurements and planet hunting by microlensing. Employing weak and strong gravitational lensing to trace and detect the distribution of matter on cosmic and ...
Batista, V   +15 more
core  

Direct Optical Detection of Microorganisms in Exoplanet Atmospheres: Methods

open access: yes, 2016
The purpose of this project is to develop an optical method for detecting the presence of life, specifically microorganisms, in the atmosphere of an exoplanet. We are developing algorithms that distinguish between aerosols of biological origin (microorganisms) from aerosols of non-biological origin (dust, hydrosols, etc.) using analysis of their ...
Murphy, Caitlin   +4 more
openaire   +1 more source

Coronagraphic Data Post-processing Using Projections on Instrumental Modes

open access: yesThe Astrophysical Journal
Directly observing exoplanets with coronagraphs is impeded by the presence of speckles from aberrations in the optical path, which can be mitigated in hardware with wave front control, as well as in post-processing. This work explores using an instrument
Yinzi Xin   +6 more
doaj   +1 more source

The TESS–Keck Survey. XXIV. Outer Giants May Be More Prevalent in the Presence of Inner Small Planets

open access: yesThe Astronomical Journal
We present the results of the Distant Giants Survey, a 3 yr radial velocity (RV) campaign to search for wide-separation giant planets orbiting Sun-like stars known to host an inner transiting planet.
Judah Van Zandt   +37 more
doaj   +1 more source

Accounting for Transit Timing Detectability: Biases in Planetary Radius and Orbital Period

open access: yesThe Astronomical Journal
Transit Timing Variations (TTVs) are deviations from the time an observer would expect to see an exoplanet transit its host star. In multiplanetary systems, significant TTVs may indicate the presence of another body in the system gravitationally ...
Skylar D’Angiolillo   +2 more
doaj   +1 more source

TOI-6695: A Pair of Near-resonant Massive Planets Observed with TESS from the WINE Survey

open access: yesThe Astronomical Journal
We present the discovery and characterization of a pair of warm Jovian-mass exoplanets orbiting the Sun-like star TOI-6695, based on Transiting Exoplanet Survey Satellite (TESS) transits and precise radial velocity (RV) measurements obtained with FEROS ...
Jan Eberhardt   +30 more
doaj   +1 more source

Detection of Exoplanets with Machine Learning Techniques Through Transit Light-curve Analysis

open access: yesThe Astronomical Journal
Exoplanet detection is an active research area in astronomy. As the volume of astronomical data increases, there is a need for methods that can automate the data processing pipeline efficiently.
Mir Sakhawat Hossain, Md. Sadman
doaj   +1 more source

TOI-4201: An Early M Dwarf Hosting a Massive Transiting Jupiter Stretching Theories of Core Accretion

open access: yesThe Astrophysical Journal Letters
We confirm TOI-4201 b as a transiting Jovian-mass planet orbiting an early M dwarf discovered by the Transiting Exoplanet Survey Satellite. Using ground-based photometry and precise radial velocities from NEID and the Planet Finder Spectrograph, we ...
Megan Delamer   +29 more
doaj   +1 more source

Exoplanet Detection of the Kepler Space Telescope through the Transit Method

open access: yesTransactions on Computer Science and Intelligent Systems Research
With the exploitation of resources and environmental pollution, the Earth has suffered countless damages. As a result, there are more and more environmental problems such as the greenhouse effect and desertification. People only have one home, one Earth, so if the Earth becomes extinct, people will not exist anymore.
openaire   +1 more source

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