Zobrazeno 1 - 10
of 182
pro vyhledávání: '"Andrew Cumming"'
Publikováno v:
The Astrophysical Journal Letters, Vol 964, Iss 1, p L15 (2024)
The origin of large magnetic fields (≳10 ^6 G) in isolated white dwarfs is not clear. One possible explanation is that crystallization of the star’s core drives compositional convection, which when combined with the star’s rotation, can drive a
Externí odkaz:
https://doaj.org/article/cf5302650f404edc94df493a6a01ac87
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 250 (2024)
We perform the first multidimensional fluid simulations of thermonuclear helium ignition underneath a hydrogen-rich shell. This situation is relevant to Type I X-ray bursts on neutron stars that accrete from a hydrogen-rich companion. Using the low-M
Externí odkaz:
https://doaj.org/article/9f29ba6337a74314aabd3ebed149f2ba
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 63 (2024)
We investigate the evolution of magnetic fields generated by the crystallization-driven dynamo in carbon–oxygen white dwarfs (WDs) with masses ≲1.05 M _⊙ . We use scalings for the dynamo to demonstrate that the initial magnetic field strength (
Externí odkaz:
https://doaj.org/article/bd9c22763c7548c7bcdee126c6b5b4c8
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 10 (2024)
We investigate crystallization-driven convection in carbon–oxygen white dwarfs. We present a version of the mixing length theory that self-consistently includes the effects of thermal diffusion and composition gradients, and provides solutions for
Externí odkaz:
https://doaj.org/article/081d12ebe0634dadb26dfe2f925056ce
Publikováno v:
The Astrophysical Journal Letters, Vol 950, Iss 1, p L4 (2023)
Recent measurements of Jupiter’s gravitational moments by the Juno spacecraft and seismology of Saturn’s rings suggest that the primordial composition gradients in the deep interior of these planets have persisted since their formation. One possi
Externí odkaz:
https://doaj.org/article/e60fe937a6d84d6c99c44d3babdae899
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 1, p 41 (2023)
Hot Jupiter atmospheres may be subject to a thermoresistive instability where an increase in the electrical conductivity due to ohmic heating results in runaway of the atmospheric temperature. We introduce a simplified one-dimensional model of the eq
Externí odkaz:
https://doaj.org/article/e79194bc5f4b45248550e71826c5e9a7
Autor:
Simon Guichandut, Andrew Cumming
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 54 (2023)
Motivated by the recent observation by NICER of a type I X-ray burst from SAX J1808.4–3658 with a distinct “pause” feature during its rise, we show that bursts which ignite in a helium layer underneath a hydrogen-rich shell naturally give rise
Externí odkaz:
https://doaj.org/article/2c51676951b44d168219c01f83607f84
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 73 (2023)
We investigate heat transport associated with compositionally driven convection driven by crystallization at the ocean–crust interface in accreting neutron stars, or growth of the solid core in cooling white dwarfs. We study the effect of thermal d
Externí odkaz:
https://doaj.org/article/ff92d12226e4404abbb80d1a41931d07
Autor:
Liliana Endo-Munoz, Na Cai, Andrew Cumming, Rebecca Macklin, Lilia Merida de Long, Eleni Topkas, Pamela Mukhopadhyay, Michelle Hill, Nicholas A Saunders
Publikováno v:
PLoS ONE, Vol 10, Iss 8, p e0133592 (2015)
Pulmonary metastasis is the major untreatable complication of osteosarcoma (OS) resulting in 10-20% long-term survival. The factors and pathways regulating these processes remain unclear, yet their identification is crucial in order to find new thera
Externí odkaz:
https://doaj.org/article/659d63ddc58c40a2a08f5b9ea856210c
Autor:
Nicholas A. Saunders, Alexander Guminski, Ian Dickinson, Scott Sommerville, Andreas Evdokiou, A. Ian Cassady, Geoffrey Strutton, Charlotte Ng, Claudia Cueva, Danielle Wilson, Danny Rickwood, Andrew Cumming, Liliana Endo-Munoz
Supplementary Methods, Figure Legends 1-2 from Loss of Osteoclasts Contributes to Development of Osteosarcoma Pulmonary Metastases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25105ab22eac5d1bf93a6b22cb8743fd
https://doi.org/10.1158/0008-5472.22384499
https://doi.org/10.1158/0008-5472.22384499
