Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Wandel, Amri"'
Autor:
Wandel, Amri
Publikováno v:
2023 Astronomical Journal 166 222
Considering subglacial liquid water, a significant extension of the classical Habitable Zone is obtained. Elaborating on the model of Wandel (2023) it is shown how an atmosphere and liquid water could survive on tidally locked planets closely orbitin
Externí odkaz:
http://arxiv.org/abs/2310.02452
Autor:
Wandel, Amri
Publikováno v:
Nat Commun 14, 2125 (2023)
A long-standing issue in astrobiology is whether planets orbiting the most abundant type of stars, M-dwarfs, can support liquid water and eventually life. A new study shows that subglacial melting may provide an answer, significantly extending the ha
Externí odkaz:
http://arxiv.org/abs/2303.04474
Autor:
Wandel, Amri
Publikováno v:
2022 ApJ 941 184
A new solution to the Fermi Paradox is presented: probes or visits from putative alien civilizations have a very low probability until a civilization reaches a certain age (called the Contact Era) after the onset of radio communications. If biotic pl
Externí odkaz:
http://arxiv.org/abs/2211.16505
The steady advances in computer performance and in programming raise the concern that the ability of computers would overtake that of the human brain, an occurrence termed "the Singularity". While comparing the size of the human brain and the advance
Externí odkaz:
http://arxiv.org/abs/1910.03944
Autor:
Wandel, Amri, Gale, Joseph
The Kepler data show that habitable small planets orbiting Red Dwarf stars (RDs) are abundant, and hence might be promising targets to look at for biomarkers and life. Planets orbiting within the Habitable Zone of RDs are close enough to be tidally l
Externí odkaz:
http://arxiv.org/abs/1907.11098
Autor:
Wandel, Amri, Tal-Or, Lev
Publikováno v:
2019, ApJL 800:L21
We study the habitability of the two 1-2 Earth-mass planets, recently detected by the CARMENES collaboration, around the ultra-cool nearby M dwarf Teegarden's Star. With orbital periods of 4.9 and 11.4 days, both planets are likely to be within the H
Externí odkaz:
http://arxiv.org/abs/1906.07704
Autor:
Wandel, Amri
Publikováno v:
Astrophysical Journal 2018, issue 856, article 165
The recent detection of Earth-sized planets in the habitable zone of Proxima Centauri, Trappist-1 and many other nearby M-type stars has led to speculations, whether liquid water and life actually exist on these planets. To a large extent, the answer
Externí odkaz:
http://arxiv.org/abs/1802.00141
Autor:
Wandel, Amri
The Kepler mission has shown that a significant fraction of all stars may have an Earth-size habitable planet. A dramatic support was the recent detection of Proxima Centauri b. Using a Drake-equation like formalism I derive an equation for the abund
Externí odkaz:
http://arxiv.org/abs/1612.03844
Autor:
Gale, Joseph, Wandel, Amri
Publikováno v:
International Journal of Astrobiology, 2017, volume 16, issue 01, pp. 1-9
We review the latest findings on extra-solar planets and their potential to support Earth-like life. Focusing on planets orbiting Red Dwarf (RD) stars, the most abundant stellar type, we show that including RDs as potential host stars could increase
Externí odkaz:
http://arxiv.org/abs/1510.03484
Autor:
Wandel, Amri
Publikováno v:
International Journal of Astrobiology, 2015, volume 14, issue 03, pp. 511-516
The data recently accumulated by the Kepler mission have demonstrated that small planets are quite common and that a significant fraction of all stars may have an Earth-like planet within their Habitable Zone. These results are combined with a Drake-
Externí odkaz:
http://arxiv.org/abs/1412.1302