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The satellites of extrasolar planets (exomoons) have been recently proposed as astrobiological targets. Since giant planets in the habitable zone are thought to have migrated there, it is possible that they may have captured a former…

地球与行星天体物理 · 物理学 2012-06-27 Simon B. Porter , William M. Grundy

In the search for life in the cosmos, NASA's Transiting Exoplanet Survey Satellite (TESS) mission has already monitored about 74% of the sky for transiting extrasolar planets, including potentially habitable worlds. However, TESS only…

地球与行星天体物理 · 物理学 2021-05-05 L. Kaltenegger , J. Pepper , P. M. Christodoulou , K. Stassun , S. Quinn , C. Burke

Precise exoplanet characterization requires precise classification of exoplanet host stars. The masses of host stars are commonly estimated by comparing their spectra to those predicted by stellar evolution models. However,…

太阳与恒星天体物理 · 物理学 2015-06-12 Benjamin T. Montet , John Asher Johnson

The catalog of stellar evolution tracks discussed in our previous work is meant to help characterize exoplanet host-stars of interest for follow-up observations with future missions like JWST. However, the utility of the catalog has been…

地球与行星天体物理 · 物理学 2020-01-29 Amanda R. Truitt , Patrick A. Young , Sara I. Walker , Alexander Spacek

Thousands of planets beyond our solar system have been discovered to date, dozens of which are rocky in composition and are orbiting within the circumstellar habitable zone of their host star. The next frontier in life detection beyond our…

Locating planets in HabitableZones (HZs) around other stars is a growing field in contemporary astronomy. Since a large percentage of all G-M stars in the solar neighbourhood are expected to be part of binary or multiple stellar systems,…

地球与行星天体物理 · 物理学 2015-05-28 Barbara Funk , Elke Pilat-Lohinger , Siegfried Eggl

The Keplerian orbit of a terrestrial planet can be a significant driver in the evolution of surface conditions, as well as influencing the overall dynamics of the system. The HD 20794 system harbors three confirmed planets orbiting a nearby…

地球与行星天体物理 · 物理学 2026-05-27 Stephen R. Kane

The Kepler mission found hundreds of planet candidates within the habitable zones (HZ) of their host star, including over 70 candidates with radii larger than 3 Earth radii ($R_\oplus$) within the optimistic habitable zone (OHZ) (Kane et…

With more and more exoplanets being detected, it is paid closer attention to whether there are lives outside solar system. We try to obtain habitable zones and the probability distribution of terrestrial planets in habitable zones around…

太阳与恒星天体物理 · 物理学 2010-03-09 Jianpo Guo , Fenghui Zhang , Xuefei Chen , Zhanwen Han

As of 2025, over 6000 planets are known to orbit stars other than our Sun. We can measure their sizes and orbital periods, infer their masses and temperatures, and constrain their compositions. Based on these data, about 1% of extrasolar…

星系天体物理 · 物理学 2025-10-13 Floris van der Tak

The dozens of rocky exoplanets discovered in the Circumstellar Habitable Zone (CHZ) currently represent the most suitable places to host life as we know it outside the Solar System. However, the presumed presence of liquid water on the CHZ…

地球与行星天体物理 · 物理学 2023-04-12 Riccardo Spinelli , Francesco Borsa , Giancarlo Ghirlanda , Gabriele Ghisellini , Francesco Haardt

Exoplanet research has shown an incessant growth since the first claim of a hot giant planet around a solar-like star in the mid-1990s. Today, the new facilities are working to spot the first habitable rocky planets around low-mass stars as…

天体物理仪器与方法 · 物理学 2018-08-08 Serena Benatti

Our understanding of the processes that are relevant to the formation and maintenance of habitable planetary systems is advancing at a rapid pace, both from observation and theory. The present review focuses on recent research that bears on…

地球与行星天体物理 · 物理学 2014-03-27 Guillermo Gonzalez

A habitable exoplanet is a world that can maintain stable liquid water on its surface. Techniques and approaches to characterizing such worlds are essential, as performing a census of Earth-like planets that may or may not have life will…

地球与行星天体物理 · 物理学 2024-01-22 Tyler D. Robinson

In preparation for the advent of the Allen Telescope Array, the SETI Institute has the need to greatly expand its former list of ~2000 targets compiled for Project Phoenix, a search for extraterrestrial technological signals. In this paper…

天体物理学 · 物理学 2009-11-07 Margaret C. Turnbull , Jill C. Tarter

Within the next few years, the first Earth-mass planets will be discovered around other stars. Some of those worlds will certainly lie within the classical "habitable zone" of their parent stars, and we will quickly move from knowing of no…

地球与行星天体物理 · 物理学 2015-05-19 J. Horner , B. W. Jones

Earth will become uninhabitable within 2-3 Gyr as a result of the moving boundaries of the habitable zone caused by the increasing luminosity of the Sun. Predictions about the future of habitable conditions on Earth include a decline in…

地球与行星天体物理 · 物理学 2015-06-03 J. T. O'Malley-James , J. S. Greaves , J. A. Raven , C. S. Cockell

Terrestrial planets in the Habitable Zone of Sun-like stars are priority targets for detection and observation by the next generation of space telescopes. Earth's long-term habitability may have been tied to the geological carbon cycle, a…

地球与行星天体物理 · 物理学 2024-12-12 Antonin Affholder , Stéphane Mazevet , Boris Sauterey , Daniel Apai , Régis Ferrière

A primary goal of the Habitable Worlds Observatory (HWO) is to detect and measure the abundance of biosignature molecules, such as water (H2O) and oxygen (O2), in the atmosphere of Earth analogs. This is expected to require deep…

The habitable zone (HZ) around a star is typically defined as the region where a rocky planet can maintain liquid water on its surface. That definition is appropriate, because this allows for the possibility that carbon-based,…

地球与行星天体物理 · 物理学 2015-06-18 James F. Kasting , Ravi Kopparapu , Ramses M. Ramirez , Chester Harman