Zobrazeno 1 - 10
of 183
pro vyhledávání: '"M S, Hansen"'
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
We describe the evolution of low mass planets in a dispersing protoplanetary disk around a Solar mass star. The disk model is based on the results of \cite{YHH23}, which describes a region of the inner disk where the direction of the migration torque
Externí odkaz:
https://doaj.org/article/c373d20fd8354f0c8b2244d94ae1243d
Autor:
Bradley M. S. Hansen, Kevin Hayakawa
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
Externí odkaz:
https://doaj.org/article/17e459144bde463d87a2d835051fead6
Publikováno v:
The Astrophysical Journal Letters, Vol 964, Iss 1, p L13 (2024)
Most, if not all, Sun-like stars host one or more planets, making multiplanetary systems commonplace in our Galaxy. We utilize hundreds of multiplanet simulations to explore the origin of such systems, focusing on their orbital architecture. The firs
Externí odkaz:
https://doaj.org/article/b81e4709d10f47718d7bfa56ae4f78a4
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 302 (2024)
Three-body systems are prevalent in nature, from planetary to stellar to supermassive black hole scales. In a hierarchical triple system, oscillations of the inner orbit’s eccentricity and inclination can be induced on secular timescales. Over many
Externí odkaz:
https://doaj.org/article/57e63bc1da8e48bbb870bd0fa3222e9c
Autor:
Cheyanne Shariat, Smadar Naoz, Bradley M. S. Hansen, Isabel Angelo, Erez Michaely, Alexander P. Stephan
Publikováno v:
The Astrophysical Journal Letters, Vol 955, Iss 1, p L14 (2023)
The Gaia mission has detected many white dwarfs (WDs) in binary and triple configurations, and while observations suggest that triple-stellar systems are common in our Galaxy, not much attention was devoted to WDs in triples. For stability reasons, t
Externí odkaz:
https://doaj.org/article/0439508ec5a54474a4576e4e1ff1e4ff
Autor:
Kevin T Hayakawa, Bradley M S Hansen
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 522:2115-2132
Irregular satellites are the minor bodies found orbiting all four Solar System giant planets, with large semi-major axes, eccentricities, and inclinations. Previous studies have determined that the Solar System's irregular satellites are extremely co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d7795275514441af33fbe36ae3b9d24
https://doi.org/10.1093/mnras/stad1091
https://doi.org/10.1093/mnras/stad1091
Autor:
Bradley M S Hansen
Moons orbiting rocky exoplanets in compact orbits about other stars experience an accelerated tidal evolution, and can either merge with their parent planet or reach the limit of dynamical instability within a Hubble time. We review the parameter spa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::792bf396db1e5d01ee796b7e4c5fe599
http://arxiv.org/abs/2210.02603
http://arxiv.org/abs/2210.02603
Autor:
Harvey B. Richer, Roger E. Cohen, Jeremy Heyl, Jason Kalirai, Ilaria Caiazzo, Matteo Correnti, Jeffrey Cummings, Paul Goudfrooij, Bradley M. S. Hansen, Molly Peeples, Elena Sabbi, Pier-Emmanuel Tremblay, Benjamin Williams
The maximum mass of a star that can produce a white dwarf (WD) is an important astrophysical quantity. One of the best approaches to establishing this limit is to search for WDs in young star clusters in which only massive stars have had time to evol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::012336952f79ef3083fc4d48a8998e3d
Autor:
Kim B. Jensen, M. S. Hansen, Palle Serup, J. v. C. Kuylenstierna, N. S. Funa, K. H. de Lichtenberg, Kenan Christopher Garcia, Yi Miao
SummaryGenetic differences between pluripotent stem cell lines causes variable activity of extra-cellular signaling pathways, which limits the reproducibility of directed differentiation protocols. Here we used human embryonic stem cells (hESCs) to i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a4f1e6adf2d1ebc88675296df86cb1
https://doi.org/10.1101/2021.07.15.452587
https://doi.org/10.1101/2021.07.15.452587
Autor:
Bradley M. S. Hansen
Publikováno v:
Nature Astronomy. 6:297-298
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52576e71376eaa17d6de66bc1c69d6d9
https://doi.org/10.1038/s41550-021-01576-w
https://doi.org/10.1038/s41550-021-01576-w