The JWST Galactic Center Survey -- A White Paper

Autor: Schoedel, Rainer, Longmore, Steve, Henshaw, Jonny, Ginsburg, Adam, Bally, John, Feldmeier, Anja, Hosek, Matt, Lara, Francisco Nogueras, Ciurlo, Anna, Chevance, Mélanie, Kruijssen, J. M. Diederik, Klessen, Ralf, Ponti, Gabriele, Amaro-Seoane, Pau, Anastasopoulou, Konstantina, Anderson, Jay, Arias, Maria, Barnes, Ashley T., Battersby, Cara, Bono, Giuseppe, Ferres, Lucía Bravo, Bryant, Aaron, Gonzáalez, Miguel Cano, Cassisi, Santi, Chaves-Velasquez, Leonardo, Conte, Francesco, Ramos, Rodrigo Contreras, Cotera, Angela, Crowe, Samuel, di Teodoro, Enrico, Do, Tuan, Eisenhauer, Frank, Enokiya, Rei, Fedriani, Rubén, Friske, Jennifer K. S., Gadotti, Dimitri, Gallart, Carme, Calvente, Teresa Gallego, Cano, Eulalia Gallego, Fuentes, Pablo García, Marín, Macarena García, Gardini, Angela, Gautam, Abhimat K., Ghez, Andrea, Gillessen, Stefan, Gouda, Naoteru, Gualandris, Alessia, Guarcello, Mario Giuseppe, Gutermuth, Robert, Haggard, Daryl, Hankins, Matthew, Hu, Yue, Kano, Ryohei, Kauffmann, Jens, Lau, Ryan, Lazarian, Alexandre, Libralato, Mattia, Lu, Anan, Lu, Xing, Lu, Jessica R., Luetzgendorf, Nora, Magorrian, John, Mandel, Shifra, Markoff, Sera, Arranz, Álvaro Martínez, Mastrobuono-Battisti, Alessandra, Melamed, Maria, Mills, Elisabeth, Mori, Kaya, Morris, Mark, Murchikova, Elena, Nagata, Tetsuya, Najarro, Francisco, Nandakumar, Govind, Nataf, David, Neumayer, Nadine, Nishiyama, Shogo, Nobukawa, Masayoshi, Paré, Dylan M, Peissker, Florian, Petkova, Maya, Pillai, Thushara G. S., Román, Mike Rich Carlos, Rugel, Michael, Ryde, Nils, Sabha, Nadeen, Bermúdez, Joel Sánchez, Sánchez-Monge, Álvaro, Schultheis, Mathias, Shao, Lijing, Shinnaga, Hiroko, Simpson, Janet, Takekawa, Shunya, Tan, Jonathan C., Thorsbro, Brian, Torne, Pablo, Tress, Robin Goppala, Uchiyam, Hideki, Valenti, Elena, van der Marel, Roeland, Verberne, Sill, Vermot, Pierre, von Fellenberg, Sebastiano, Walker, Daniel, Witzel, Gunther, Xu, Siyao, Yano, Taihei, Yusef-Zadeh, Farhad, Zajaček, Michal, Zoccali, Manuela

The inner hundred parsecs of the Milky Way hosts the nearest supermassive black hole, largest reservoir of dense gas, greatest stellar density, hundreds of massive main and post main sequence stars, and the highest volume density of supernovae in the

Externí odkaz: http://arxiv.org/abs/2310.11912

A new reference catalogue for the very metal-poor Universe: +150 OB stars in Sextans A

Autor: Lorenzo, Marta, Garcia, Miriam, Najarro, Francisco, Herrero, Artemio, Cerviño, Miguel, Castro, Norberto

Local Group (LG) very metal-poor massive stars are the best proxy for the First Stars of the Universe and fundamental to modelling the evolution of early galaxies. These stars may follow new evolutionary pathways restricted to very low metallicities,

Externí odkaz: http://arxiv.org/abs/2207.09700

New hydrodynamic solutions for line-driven winds of hot massive stars using Lambert $W$-function

Autor: Gormaz-Matamala, Alex C., Curé, Michel, Hillier, D. John, Najarro, Francisco, Kubátová, Brankica, Kubát, Jiří

Publikováno v: 2021 The Astrophysical Journal, Volume 920, Issue 1, id.64, 30 pp

Hot massive stars present strong stellar winds that are driven by absorption, scattering and re\-emission of photons by the ions of the atmosphere (\textit{line-driven winds}). A better comprehension of this phenomenon, and a more accurate calculatio

Externí odkaz: http://arxiv.org/abs/2106.15060

A new candidate Luminous Blue Variable

Autor: Figer, Donald F., Najarro, Francisco, Messineo, Maria, Clark, J. Simon, Menten, Karl M.

We identify IRAS 16115-5044, which was previously classified as a protoplanetary nebula (PPN), as a candidate luminous blue variable (LBV). The star has high luminosity (>10$^{5.75}$ L_Sun), ensuring supergiant status, has a temperature similar to LB

Externí odkaz: http://arxiv.org/abs/2009.11122

A Significant Feature in the General Relativistic Time Evolution of the Redshift of Photons Coming from a Star Orbiting Sgr A*

Autor: Saida, Hiromi, Nishiyama, Shogo, Ohgami, Takayuki, Takamori, Yohsuke, Takahashi, Masaaki, Minowa, Yosuke, Najarro, Francisco, Hamano, Satoshi, Omiya, Masashi, Iwamatsu, Atsushi, Takahashi, Mizuki, Gorin, Haruka, Kara, Tomohiro, Koyama, Akinori, Ohashi, Yosuke, Tamura, Motohide, Nagatomo, Schun, Zenko, Tetsuya, Nagata, Tetsuya

The star S0-2, orbiting the Galactic central massive black hole candidate Sgr A*, passed its pericenter in May 2018. This event is the first chance to detect the general relativistic (GR) effect of a massive black hole, free from non-gravitational ph

Externí odkaz: http://arxiv.org/abs/1910.02632