Zobrazeno 1 - 10
of 56
pro vyhledávání: '"L. Gaches"'
Autor:
Hyeong-Sik Yun, Jeong-Eun Lee, Yunhee Choi, Neal J. Evans II, Stella S. R. Offner, Mark H. Heyer, Brandt A. L. Gaches, Yong-Hee Lee, Giseon Baek, Minho Choi, Hyunwoo Kang, Seokho Lee, Ken’ichi Tatematsu, Yao-Lun Yang, How-Huan Chen, Youngung Lee, Jaehoon Jung, Changhoon Lee, Jungyeon Cho
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 271, Iss 1, p 36 (2024)
Externí odkaz:
https://doaj.org/article/665755efc13c41cebfa265a72b3e78a9
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::001495e41c8269367269fbf39ce621a7
Publikováno v:
The Astrophysical Journal. 937:128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d41e7662bf2de9a90ee1141b4f9e3ec
https://doi.org/10.3847/1538-4357/ac927d
https://doi.org/10.3847/1538-4357/ac927d
Autor:
Brandt A. L. Gaches, Shmuel Bialy, Thomas G. Bisbas, Marco Padovani, Daniel Seifried, Stefanie Walch
Publikováno v:
Astronomy & Astrophysics. 664:A150
Context: It has been proposed that H$_2$ near-infrared lines may be excited by cosmic rays and allow for a determination of the cosmic-ray ionization rate in dense gas. One-dimensional models show that measuring both the H$_2$ gas column density and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::929cf432e74a33363bf3bf03f536942b
https://doi.org/10.1051/0004-6361/202244090
https://doi.org/10.1051/0004-6361/202244090
Autor:
Margot Fitz Axen, Stella S. S. Offner, Chris L. Fryer, Aimee Hungerford, Brandt A. L. Gaches, Kedron Silsbee
Recent studies have suggested that low-energy cosmic rays (CRs) may be accelerated inside molecular clouds by the shocks associated with star formation. We use a Monte Carlo transport code to model the propagation of CRs accelerated by protostellar a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da090c22aa3c4f63da211764cdcb7a7a
http://arxiv.org/abs/2105.00028
http://arxiv.org/abs/2105.00028
Autor:
Yao-Lun Yang, Mark H. Heyer, Seokho Lee, Youngung Lee, Yunhee Choi, Ken'ichi Tatematsu, Hyeong-Sik Yun, Jae-Hoon Jung, Stella S. R. Offner, Neal J. Evans, Hyunwoo Kang, Jeong-Eun Lee, Minho Choi, Brandt A. L. Gaches, Yong-Hee Lee, Jungyeon Cho, Chang-Hoon Lee, Giseon Baek, How-Huan Chen
We have used the Taeduk Radio Astronomy Observatory to observe the Orion A and Ophiuchus clouds in the $J=$1$-$0 lines of $^{13}$CO, C$^{18}$O, HCN, HCO$^+$, and N$_2$H$^+$ and the $J=$2$-$1 line of CS. The fully sampled maps with uniform noise level
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b97ddff2037ca4d026b9bf525fd6b878
Autor:
Yao-Lun Yang, Neal J. Evans, Ken'ichi Tatematsu, Jeong-Eun Lee, Yunhee Choi, Mark H. Heyer, Brandt A. L. Gaches, Stella S. R. Offner, Minho Choi, Giseon Baek, How-Huan Chen, Hyeong-Sik Yun, Jungyeon Cho, Seokho Lee, Jongsoo Kim, Hyunwoo Kang, Yong-Hee Lee
Publikováno v:
The Astrophysical Journal. 921:31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78a61948094bd7c95e7edf7cd6870ae5
https://doi.org/10.3847/1538-4357/ac193e
https://doi.org/10.3847/1538-4357/ac193e
Publikováno v:
The Astrophysical Journal
The radioactive decay of aluminum-26 ($^{26}$Al) is an important heating source in early planet formation. Since its discovery, there have been several mechanisms proposed to introduce $^{26}$Al into protoplanetary disks, primarily through contaminat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a017234d941a7f5c2fced2ac8520f9cc
https://doi.org/10.3847/1538-4357/ab9a38
https://doi.org/10.3847/1538-4357/ab9a38
We construct a semi-analytic model to study the effect of far-ultraviolet (FUV) radiation on gas chemistry from embedded protostars. We use the Protostellar Luminosity Function (PLF) formalism of Offner & McKee (2011) to calculate the total, FUV, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48698e5051b4ae410aa48c561670dd73
We construct a model for cosmic ray acceleration from protostellar accretion shocks and calculate the resulting cosmic ray ionization rate within star-forming molecular clouds. We couple a protostar cluster model with an analytic accretion shock mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75bdf3e870be3703a185b11747751303