Results 1 to 10 of about 507,717 (322)

The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades [PDF]

open access: yesAstrophysical Journal Supplement Series, 2021
We present a high-precision radial velocity (RV) survey of 719 FGKM stars, which host 164 known exoplanets and 14 newly discovered or revised exoplanets and substellar companions.
L. Rosenthal   +22 more
semanticscholar   +1 more source

California Legacy Survey. II. Occurrence of Giant Planets beyond the Ice Line [PDF]

open access: yesAstrophysical Journal Supplement Series, 2021
We used high-precision radial velocity measurements of FGKM stars to determine the occurrence of giant planets as a function of orbital separation spanning 0.03–30 au.
B. Fulton   +22 more
semanticscholar   +1 more source

Feasibility Assessment and Implementation of Integrated Management of The West Coast of The Mazandran Province According to the ICZM [PDF]

open access: yesمدیریت نوآوری و راهبردهای عملیاتی, 2021
Purpose: Integrated coastal zone management (ICZM) is the primary way to solve environmental problems. In addition, many countries in the world attempt to provide human needs to coastal region services to reach the natural border of these zones.
Habibeh Karimi   +2 more
doaj   +1 more source

Models of the in Situ Formation of Detected Extrasolar Giant Planets [PDF]

open access: yes, 2021
We present numerical simulations of the formation of the planetary companions to 47 UMa, ρ CrB, and 51 Peg. They are assumed to have formed in situ according to the basic model that a core formed first by accretion of solid particles, then later it ...
P. Bodenheimer, O. Hubickyj, J. Lissauer
semanticscholar   +1 more source

Scientific Aspects in the Thought of the Brothers of Safa [PDF]

open access: yesمجلة جامعة الأنبار للعلوم الإنسانية, 2021
Al-Safa Brothers are a philosophical group that appeared in the fourth century AH. They gathered and wrote fifty-two treatises in various scientific and philosophical fields known as the letters of Al-safa Brothers and during the death they are ...
Majeed M.trad
doaj   +1 more source

معتقد التنجيم ورموزه على مسكوكات الجزيرة الفراتية واألناضول خالل القرنين السادس والسابع الهجريين Astrology as a Folk Life on Mesopotamian, and Anatolian Coins from the Sixth to Seventh H.AH Century [PDF]

open access: yesJournal of General Union of Arab Archaeologists, 2023
{AR} تتناول هذه الورقة البحثية موضوع التنجيم وبعض من رموزه (كالشمس والقمر) التي ظهرت على المسكوكات الإسلامية، في كل من الجزيرة الفراتية والأناضول خلال الفترة ما بين القرن السادس حتى القرن السابع الهجريين، حيث يُعد ظهورها أمر بالغ الأهمية؛ فإذ لم يكن ...
Fatima Mriziq Odeh Abu Shaqqal
doaj   +1 more source

The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data [PDF]

open access: yesAstronomical Journal, 2020
We present the occurrence rates for rocky planets in the habitable zones (HZs) of main-sequence dwarf stars based on the Kepler DR25 planet candidate catalog and Gaia-based stellar properties.
S. Bryson   +81 more
semanticscholar   +1 more source

Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1 [PDF]

open access: yesNature, 2017
One aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per ...
M. Gillon   +29 more
semanticscholar   +1 more source

MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): PLANETS, OSCILLATIONS, ROTATION, AND MASSIVE STARS [PDF]

open access: yes, 2013
We substantially update the capabilities of the open source software package Modules for Experiments in Stellar Astrophysics (MESA), and its one-dimensional stellar evolution module, MESAstar.
B. Paxton   +10 more
semanticscholar   +1 more source

The HARPS search for southern extra-solar planets [PDF]

open access: yesAstronomy & Astrophysics, 2018
We report the discovery of four super-Earth planets around HD 215152, with orbital periods of 5.76, 7.28, 10.86, and 25.2 d, and minimum masses of 1.8, 1.7, 2.8, and 2.9 M⊕ respectively.
J. Delisle   +24 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy