Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jack T. O'Malley-James"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 481:2487-2496
In this paper, we analyze a new possible biological surface feature for habitable worlds orbiting other stars: biofluorescence. High ultraviolet (UV) and blue radiation fluxes drive the strongest biofluorescence in terrestrial fluorescent pigments an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee2a71127a33a4a72a65ea33e6a1fde6
https://doi.org/10.1093/mnras/sty2411
https://doi.org/10.1093/mnras/sty2411
The closest potentially habitable worlds outside our Solar system orbit a different kind of star than our Sun: smaller red dwarf stars. Such stars can flare frequently, bombarding their planets with biologically damaging high-energy UV radiation, pla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b08ffa59572b12e80bdda8698756b20
http://arxiv.org/abs/1904.03956
http://arxiv.org/abs/1904.03956
The high reflection of land vegetation in the near-infrared, the vegetation red edge (VRE), is often cited as a spectral biosignature for surface vegetation on exoplanets. The VRE is only a few percent change in reflectivity for a disk-integrated obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25145c74dab9f62347c842d2e51a78ea
With the discovery of rocky planets in the temperate habitable zone (HZ) of the close-by cool star TRAPPIST-1 the question of whether such planets could harbour life arises. Habitable planets around red dwarf stars can orbit in radiation environments
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f4829ecd24420b1206bb0759ace77c8
Publikováno v:
The Astrophysical Journal. 879:L20
When Carl Sagan observed the Earth during a Gallileo fly-by in 1993, he found a widely distributed surface pigment with a sharp reflection edge in the red part of the spectrum, which, together with the abundance of gaseous oxygen and methane in extre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8d8128e4330e0fd6a325db83aba22b2
https://doi.org/10.3847/2041-8213/ab2769
https://doi.org/10.3847/2041-8213/ab2769
Publikováno v:
Planetary and Space Science. 85:312-318
The habitable zone (HZ) is conventionally the thin shell of space around a star within which liquid water is thermally stable on the surface of an Earth-like planet (Kasting et al., 1993). However, life on Earth is not restricted to the surface and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e6135c6b040b16f36bae2c01a3d167b
https://doi.org/10.1016/j.pss.2013.07.002
https://doi.org/10.1016/j.pss.2013.07.002
Autor:
Jesse P. Harrison, Lena Noack, S. Direito, Andrew Rushby, Helmut Lammer, Petra Schwendner, Javier Martin-Torres, Jennifer Wadsworth, Hanna Landenmark, Charles S. Cockell, Samuel J. Payler, Casey Bryce, Mark Fox-Powell, María Paz Zorzano, Jack T. O'Malley-James, Toby Samuels, T. Bush, Natasha Nicholson
Publikováno v:
Astrobiology. 16(1)
Habitability is a widely used word in the geoscience, planetary science, and astrobiology literature, but what does it mean? In this review on habitability, we define it as the ability of an environment to support the activity of at least one known o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a7bdf988c7220807b7cc74f3db0237d
https://pubmed.ncbi.nlm.nih.gov/26741054
https://pubmed.ncbi.nlm.nih.gov/26741054
Our first targets in the search for signs of life are orbiting nearby M stars, such as the planets in the Proxima Centauri, Ross-128, LHS-1140, and TRAPPIST-1 systems. Future ground-based discoveries, and those from the TESS mission, will provide add
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50dc5af1bc1bde39c2efe433ad1367c4
Publikováno v:
Astrobiology. 12:115-124
The potential for Earth-like planets within binary/multiple-star systems to host photosynthetic life was evaluated by modeling the levels of photosynthetically active radiation (PAR) such planets receive. Combinations of M and G stars in (i) close-bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40cf0fbaba25c0db877ed554840d8185
https://doi.org/10.1089/ast.2011.0678
https://doi.org/10.1089/ast.2011.0678
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 species diver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82fe5b15174bbb23830dadca1b0f4502
https://hdl.handle.net/10453/37310
https://hdl.handle.net/10453/37310