Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Simon Blouin"'
Publikováno v:
International Journal of Disaster Risk Science, Vol 15, Iss 4, Pp 481-493 (2024)
Abstract The food supply chain’s heavy reliance on electricity poses significant vulnerabilities in the event of prolonged and widespread power disruptions. This study introduces a system-dynamics model that integrates five critical infrastructures
Externí odkaz:
https://doaj.org/article/0eb261f8bb104f96bef41f21f630abd9
Publikováno v:
Energies, Vol 17, Iss 20, p 5147 (2024)
To combat global warming, energy systems are transitioning to generation from renewable sources, such as wind and solar, which are sensitive to climate conditions. While their output is expected to be little affected by global warming, wind, and sola
Externí odkaz:
https://doaj.org/article/f501745a1b254316abd4440b067eb04b
Autor:
Mary Anne Limbach, Andrew Vanderburg, Alexander Venner, Simon Blouin, Kevin B. Stevenson, Ryan J. MacDonald, Sydney Jenkins, Rachel Bowens-Rubin, Melinda Soares-Furtado, Caroline Morley, Markus Janson, John Debes, Siyi Xu, Evangelia Kleisioti, Matthew Kenworthy, Paul Butler, Jeffrey D. Crane, Dave Osip, Stephen Shectman, Johanna Teske
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L11 (2024)
The MIRI Exoplanets Orbiting White dwarfs survey is a cycle 2 JWST program to search for exoplanets around dozens of nearby white dwarfs via infrared excess and direct imaging. In this Letter, we present the detection of mid-infrared excess at 18 and
Externí odkaz:
https://doaj.org/article/cb3906893d87432a94f49924b12b41c0
Autor:
Huaqing Mao, Paul Woodward, Falk Herwig, Pavel A. Denissenkov, Simon Blouin, William Thompson, Benjamin McDermott
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 271 (2024)
We present 3D hydrodynamical simulations of core convection with a stably stratified envelope of a 25 M _⊙ star in the early phase of the main sequence. We use the explicit gas-dynamics code PPMstar , which tracks two fluids and includes radiation
Externí odkaz:
https://doaj.org/article/d22e34a710974405bc41fda3a0352fd8
Autor:
Manuel Barrientos, Mukremin Kilic, Pierre Bergeron, Simon Blouin, Warren R. Brown, Jeff J. Andrews
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 88 (2024)
We present follow-up spectroscopy and a detailed model atmosphere analysis of 29 wide double white dwarfs, including eight systems with a crystallized C/O core member. We use the state-of-the-art evolutionary models to constrain the physical paramete
Externí odkaz:
https://doaj.org/article/b8f0fd94dba149b19b676e88ac936202
Autor:
Gracyn Jewett, Mukremin Kilic, Pierre Bergeron, Adam Moss, Simon Blouin, Warren R. Brown, Alekzander Kosakowski, Silvia Toonen, Marcel A. Agüeros
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 12 (2024)
We present a detailed model atmosphere analysis of massive white dwarfs with M > 0.9 M _⊙ and T _eff ≥ 11,000 K in the Montreal White Dwarf Database 100 pc sample and the Pan-STARRS footprint. We obtained follow-up optical spectroscopy of 109 obj
Externí odkaz:
https://doaj.org/article/c2fa79acaf194170b91f4d5955b63ab6
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 159 (2024)
Four years after the discovery of a unique DAQ white dwarf with a hydrogen-dominated and carbon-rich atmosphere, we report the discovery of four new DAQ white dwarfs, including two that were not recognized properly in the literature. We find all five
Externí odkaz:
https://doaj.org/article/4fd55103899849bfb22c2e58f86a5852
Autor:
Isaac Cheng, Tyrone E. Woods, Patrick Côté, Jennifer Glover, Dhananjhay Bansal, Melissa Amenouche, Madeline A. Marshall, Laurie Amen, John Hutchings, Laura Ferrarese, Kim A. Venn, Michael Balogh, Simon Blouin, Ryan Cloutier, Nolan Dickson, Sarah Gallagher, Martin Hellmich, Vincent Hénault-Brunet, Viraja Khatu, Cameron Lawlor-Forsyth, Cameron Morgan, Harvey Richer, Marcin Sawicki, Robert Sorba
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 178 (2024)
The Cosmological Advanced Survey Telescope for Optical and ultraviolet Research (CASTOR) is a proposed Canadian-led 1 m class space telescope that will carry out ultraviolet and blue optical wide-field imaging, spectroscopy, and photometry. CASTOR wi
Externí odkaz:
https://doaj.org/article/72fc7934aa3043b091dd5d97979ffa5f
Publikováno v:
The Astrophysical Journal Letters, Vol 955, Iss 2, p L33 (2023)
Gaia's exquisite parallax measurements allowed for the discovery and characterization of the Q branch in the Hertzsprung–Russell diagram, where massive C/O white dwarfs (WDs) pause their dimming due to energy released during crystallization. Intere
Externí odkaz:
https://doaj.org/article/96b113fdea04419f913df67f2397a73e
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 2, p 78 (2023)
When white dwarfs freeze, the plasma mixtures inside them undergo separation processes that can produce radical changes in the composition profile of the star. The abundance of neutron-rich elements, such as ^22 Ne or ^56 Fe, determines whether or no
Externí odkaz:
https://doaj.org/article/0ee18c2afddf4f88b089ea77bda5b19d