Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Mackey, Jonathan A."'
Autor:
Holdsworth, Amanda, Richardson, Noel, Schaefer, Gail H., Eldridge, Jan J., Hill, Grant M., Spejcher, Becca, Mackey, Jonathan, Moffat, Anthony F. J., Navarete, Felipe, Monnier, John D., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Chhabra, Sorabh, Codron, Isabelle, Ennis, Jacob, Gardner, Tyler, Gutierrez, Mayra, Ibrahim, Noura, Labdon, Aaron, Lanthermann, Cyprien, Setterholm, Benjamin R.
Classical Wolf-Rayet stars are descendants of massive OB-type stars that have lost their hydrogen-rich envelopes, and are in the final stages of stellar evolution, possibly exploding as type Ib/c supernovae. It is understood that the mechanisms drivi
Externí odkaz:
http://arxiv.org/abs/2411.01062
While many astrophysical plasmas can be modelled successfully assuming ionisation and thermal equilibrium, in some cases this is not appropriate and a non-equilibrium approach is required. In nebulae around evolved stars the local elemental abundance
Externí odkaz:
http://arxiv.org/abs/2409.18904
Autor:
Fichtner, Yvonne A., Mackey, Jonathan, Grassitelli, Luca, Romano-Díaz, Emilio, Porciani, Cristiano
Publikováno v:
A&A 690, A72 (2024)
Energy and momentum feedback from stars is a key element of models for galaxy formation and interstellar medium dynamics, but resolving the relevant length scales to directly include this feedback remain out of reach of current-generation simulations
Externí odkaz:
http://arxiv.org/abs/2402.11008
Autor:
Burger-Scheidlin, Christopher, Brose, Robert, Mackey, Jonathan, Filipović, Miroslav D., Goswami, Pranjupriya, Guillen, Enrique Mestre, Wilhelmi, Emma de Oña, Sushch, Iurii
Publikováno v:
A&A 684, A150 (2024)
The supernova remnant (SNR) G288.8-6.3 was recently discovered as a faint radio shell at large Galactic latitude using observations with ASKAP in the EMU survey. Here, we make the first detailed investigation of the $\gamma$-ray emission from the G28
Externí odkaz:
http://arxiv.org/abs/2310.14431
Autor:
Filipović, Miroslav D., Dai, Shi, Arbutina, Bojan, Hurley-Walker, Natasha, Brose, Robert, Becker, Werner, Sano, Hidetoshi, Urošević, Dejan, Jarrett, T. H., Hopkins, Andrew M., Alsaberi, Rami Z. E., Alsulami, R., Bordiu, Cristobal, Ball, Brianna, Bufano, Filomena, Burger-Scheidlin, Christopher, Crawford, Evan, English, Jayanne, Haberl, Frank, Ingallinera, Adriano, Kapinska, Anna D., Kavanagh, Patrick J., Koribalski, Bärbel S., Kothes, Roland, Lazarević, Sanja, Mackey, Jonathan, Rowell, Gavin, Leahy, Denis, Loru, Sara, Macgregor, Peter J., Nicastro, Luciano, Norris, Ray P., Riggi, Simone, Sasaki, Manami, Stupar, Milorad, Trigilio, Corrado, Umana, Grazia, Vernstrom, Tessa, Vukotić, Branislav
We present the serendipitous detection of a new Galactic Supernova Remnant (SNR), G288.8-6.3 using data from the Australian Square Kilometre Array Pathfinder (ASKAP)-Evolutionary Map of the Universe (EMU) survey. Using multi-frequency analysis, we co
Externí odkaz:
http://arxiv.org/abs/2308.08716
Autor:
Mackey, Jonathan, Jones, Thomas A. K., Brose, Robert, Grassitelli, Luca, Reville, Brian, Mathew, Arun
Publikováno v:
2023, MNRAS, 526, 3099
The inverse-Compton effect (IC) is a widely recognized cooling mechanism for both relativistic and thermal electrons in various astrophysical environments, including the intergalactic medium and X-ray emitting plasmas. Its effect on thermal electrons
Externí odkaz:
http://arxiv.org/abs/2301.13716
X-ray radiation, in particular radiation between 0.1 keV and 10 keV, is evident from both point-like sources, such as compact objects and T-Tauri young stellar objects, and extended emission from hot, cooling gas, such as in supernova remnants. The X
Externí odkaz:
http://arxiv.org/abs/2301.13237
In compact and dense star-forming clouds a global star cluster wind could be suppressed. In this case the stellar feedback is unable to expel the leftover gas from the cluster. Young massive stars remain embedded into a dense residual gas and stir it
Externí odkaz:
http://arxiv.org/abs/2301.12300
Autor:
Mackey, Jonathan
Massive stars drive strong winds that impact the surrounding interstellar medium, producing parsec-scale bubbles for isolated stars and superbubbles around young clusters. These bubbles can be observed across the electromagnetic spectrum, both the wi
Externí odkaz:
http://arxiv.org/abs/2211.08808
Supernova remnants are known to accelerate cosmic-rays from the detection of non-thermal emission in radio waves, X-rays, and gamma-rays. However, the ability to accelerate cosmic-rays up to PeV energies has yet to be demonstrated. The presence of cu
Externí odkaz:
http://arxiv.org/abs/2208.04185