Results 31 to 40 of about 4,433 (297)

ASTROPHYSICAL PARAMETERS AND HABITABLE ZONE OF THE EXOPLANET HOSTING STAR GJ 581 [PDF]

open access: yes, 2011
GJ 581 is an M dwarf host of a multiplanet system. We use long-baseline interferometric measurements from the CHARA Array, coupled with trigonometric parallax information, to directly determine its physical radius to be 0.299 ± 0.010 R_☉.
Kane, Stephen R.   +43 more
core   +1 more source

A Second Earth-sized Planet in the Habitable Zone of the M Dwarf, TOI-700 [PDF]

open access: yes, 2023
We report the discovery of TOI-700 e, a 0.95 R _⊕ planet residing in the Optimistic Habitable Zone (HZ) of its host star. This discovery was enabled by multiple years of monitoring from NASA’s Transiting Exoplanet Survey Satellite (TESS) mission.
Kane, Stephen R.   +63 more
core   +1 more source

The Habitable Zone of Inhabited Planets [PDF]

open access: yes, 2014
Abstract. In this paper we discuss and illustrate the hypothesis that life substantially alters the state of a planetary environment and therefore, modifies the limits of the HZ as estimated for an uninhabited planet. This hypothesis lead to the introduction of the Habitable Zone for Inhabited Planets (hereafter InHZ), defined here as the region where ...
Jorge I. Zuluaga   +3 more
openaire   +5 more sources

The Habitable-Zone Planet Finder: improved flux image generation algorithms for H2RG up-the-ramp data [PDF]

open access: yes, 2018
Noise and stability of current state of the art near-infrared (NIR) array detectors are still substantially worse than optical science grade CCDs used in astronomy.
Ford, Eric B.   +26 more
core   +1 more source

No Transits of Proxima Centauri Planets in High-Cadence TESS Data

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Proxima Centauri is our nearest stellar neighbor and one of the most well-studied stars in the sky. In 2016, a planetary companion was detected through radial velocity measurements.
Emily A. Gilbert   +9 more
doaj   +1 more source

KRITERIA PLANET LAYAK HUNI SEBAGAI ANALISIS KEBERADAAN DOPPELGANGER BUMI

open access: yesGravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika, 2019
The discovery of extrasolar planets has reached rapid development. Until now, various earth-sized planets called terrestrial planets around their parent stars have been discovered .
Berthianna Nurcresia   +4 more
doaj   +1 more source

Inner Habitable Zone Boundary for Eccentric Exoplanets

open access: yesThe Astrophysical Journal Letters, 2023
The climate of a planet can be strongly affected by its eccentricity due to variations in the stellar flux. There are two limits for the dependence of the inner habitable zone boundary (IHZ) on eccentricity: (1) the mean stellar flux approximation ( ${S ...
Xuan Ji   +5 more
doaj   +1 more source

Tides, planetary companions, and habitability: habitability in the habitable zone of low-mass stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
Earth-scale planets in the classical habitable zone (HZ) are more likely to be habitable if they possess active geophysics. Without a constant internal energy source, planets cool as they age, eventually terminating tectonic activity and rendering the planet sterile to life.
Van Laerhoven, Christa   +2 more
openaire   +2 more sources

A Catalog of Kepler Habitable Zone Exoplanet Candidates [PDF]

open access: yes, 2016
International audienceThe NASA Kepler mission has discovered thousands of new planetary candidates, many of which have been confirmed through follow-up observations.
Ciardi, David R.,   +26 more
core   +1 more source

Exomoons in the Habitable Zones of M Dwarfs [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract M dwarfs host most of the exoplanets in the local Milky Way. Some of these planets, ranging from sub-Earths to super-Jupiters, orbit in their stars’ habitable zones (HZs), although many likely possess surface environments that preclude habitability.
Héctor Martínez-Rodríguez   +4 more
openaire   +4 more sources

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