Results 1 to 10 of about 44,852 (244)

HD 3651 B: the first directly imaged brown dwarf companion of an exoplanet host star [PDF]

open access: bronze, 2006
In the course of our ongoing multiplicity study of exoplanet host stars we detected a faint companion located at ~43arcsec (480AU physical projected separation) north-west of its primary -- the exoplanet host star HD3651 at 11pc.
M. Mugrauer   +3 more
openalex   +5 more sources

Scientific Error and Error Handling

open access: yesScientonomy, 2021
Error is a common part of scientific practice, which must be accounted for by scientonomy. A scientific error occurs when an agent accepts a theory that should not have been accepted given that agent’s employed method. One might suspect that the handling
Sarah Machado-Marques, Paul Patton
doaj   +1 more source

Simulation of Earth’s Outward Radiative Flux and Its Radiance in Moon-Based View

open access: yesRemote Sensing, 2021
To study the Earth’s energy balance and to extend exoplanet research, the Earth’s outward radiative flux and its radiance in the Moon-based view were simulated according to the Earth–Sun–Moon geometry model, with the help of ERA5.
Haolu Shang   +8 more
doaj   +1 more source

Orbital Period Refinement of CoRoT Planets with TESS Observations

open access: yesFrontiers in Astronomy and Space Sciences, 2021
CoRoT was the first space mission dedicated to exoplanet detection. Operational between 2007 and 2012, this mission discovered 37 transiting planets, including CoRoT-7b, the first terrestrial exoplanet with a measured size. The precision of the published
Peter Klagyivik    +8 more
doaj   +1 more source

Simulating asteroid impacts and meteor events by high-power lasers: from the laboratory to spaceborne missions

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Meteor plasmas and impact events are complex, dynamic natural phenomena. Simulating these processes in the laboratory is, however, a challenge. The technique of laser induced dielectric breakdown was first used for this purpose almost 50 years ago. Since
Martin Ferus   +35 more
doaj   +1 more source

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+2 more sources

Exoplanets around Red Giants: Distribution and Habitability

open access: yesGalaxies, 2023
As the search for exoplanets continues, more are being discovered orbiting Red Giant stars. We use current data from the NASA Exoplanet Archive to investigate planet distribution around Red Giant stars and their presence in the host’s habitable zone.
Ruixuan E. Chen   +4 more
doaj   +1 more source

Modeling of Magnetospheres of Terrestrial Exoplanets in the Habitable Zone around G-Type Stars

open access: yesUniverse, 2022
Using a paraboloid model of an Earth-like exoplanetary magnetospheric magnetic field, developed from a model of the Earth, we investigate the magnetospheric structure of planets located in the habitable zone around G-type stars.
Elena S. Belenkaya   +2 more
doaj   +1 more source

Constraining Young Hot Jupiter Occurrence Rate in Stellar Associations Using 2-min Cadence TESS Data

open access: yesUniverse, 2023
The characterization of young planet distribution is essential for our understanding of the early evolution of exoplanets. Here we conduct a systematic search for young planets from young open clusters and associations using the 2-min cadence TESS survey
Yuanqing Fang   +3 more
doaj   +1 more source

Investigating Exoplanet Orbital Evolution Around Binary Star Systems with Mass Loss [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2016
A planet revolving around binary star system is a familiar system. Studies of these systems are important because they provide precise knowledge of planet formation and orbit evolution. In this study, a method to determine the evolution of an exoplanet
Walid A. Rahoma
doaj   +1 more source

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