Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Guzman Viviana"'
Autor:
Galaz, Gaspar, González-López, Jorge, Guzmán, Viviana, Messias, Hugo, Junais, Boissier, Samuel, Epinat, Benoît, Weilbacher, Peter M., Puzia, Thomas, Johnston, Evelyn J., Amram, Philippe, Frayer, David, Blaña, Matías, Howk, J. Christopher, Berg, Michelle, Bustos-Espinoza, Roy, Muñoz-Mateos, Juan Carlos, Cortés, Paulo, García-Appadoo, Diego, Joachimi, Katerine
After over three decades of unsuccessful attempts, we report the first detection of molecular gas emission in Malin 1, the largest spiral galaxy observed to date, and one of the most iconic giant low surface brightness galaxies. Using ALMA, we detect
Externí odkaz:
http://arxiv.org/abs/2410.22230
Autor:
Jorquera, Sebastián, Bonnefoy, Mickaël, Pérez, Laura M., Chauvin, Gaël, Aguinaga, Adrian, Dougados, Catherine, Julo, Rémi, Demars, Dorian, Andrews, Sean M., Ricci, Luca, Zhu, Zhaohuan, kurtovic, Nicolas T., Cuello, Nicolás, Bai, Xue-ning, Birnstiel, Til, Dullemond, Cornelis, Guzmán, Viviana V.
The accretion/ejection processes in T-Tauri stars are fundamental to their physical evolution, while also impacting the properties and evolution of the circumstellar material at a time when planet formation takes place. To this date, characterization
Externí odkaz:
http://arxiv.org/abs/2408.15976
Autor:
Einig, Lucas, Palud, Pierre, Roueff, Antoine, Pety, Jérôme, Bron, Emeric, Petit, Franck Le, Gerin, Maryvonne, Chanussot, Jocelyn, Chainais, Pierre, Thouvenin, Pierre-Antoine, Languignon, David, Bešlić, Ivana, Coudé, Simon, Mazurek, Helena, Orkisz, Jan H., Santa-Maria, Miriam G., Ségal, Léontine, Zakardjian, Antoine, Bardeau, Sébastien, Demyk, Karine, Magalhães, Victor de Souza, Goicoechea, Javier R., Gratier, Pierre, Guzmán, Viviana V., Hughes, Annie, Levrier, François, Bourlot, Jacques Le, Lis, Dariusz C., Liszt, Harvey S., Peretto, Nicolas, Roueff, Evelyne, Sievers, Albrecht
Publikováno v:
A&A 691, A109 (2024)
Observations of ionic, atomic, or molecular lines are performed to improve our understanding of the interstellar medium (ISM). However, the potential of a line to constrain the physical conditions of the ISM is difficult to assess quantitatively, bec
Externí odkaz:
http://arxiv.org/abs/2408.08114
Autor:
Yamato, Yoshihide, Aikawa, Yuri, Guzmán, Viviana V., Furuya, Kenji, Notsu, Shota, Cataldi, Gianni, Öberg, Karin I., Qi, Chunhua, Law, Charles J., Huang, Jane, Teague, Richard, Gal, Romane Le
Characterizing the chemistry of complex organic molecules (COMs) at the epoch of planet formation provides insights into the chemical evolution of the interstellar medium (ISM) and the origin of organic materials in our Solar System. We report a dete
Externí odkaz:
http://arxiv.org/abs/2407.21518
Autor:
Long, Deryl E., Cleeves, L. Ilsedore, Adams, Fred C., Andrews, Sean, Bergin, Edwin A., Guzmán, Viviana V., Huang, Jane, Hughes, A. Meredith, Qi, Chunhua, Schwarz, Kamber, Simon, Jacob B., Wilner, David
Ionization drives important chemical and dynamical processes within protoplanetary disks, including the formation of organics and water in the cold midplane and the transportation of material via accretion and magneto-hydrodynamic (MHD) flows. Unders
Externí odkaz:
http://arxiv.org/abs/2406.18657
Autor:
Carvalho, Adolfo S., Perez, Laura M., Sierra, Anibal, Mellado, Maria Jesus, Hillenbrand, Lynne A., Andrews, Sean, Benisty, Myriam, Birnstiel, Tilman, Carpenter, John M., Guzman, Viviana V., Huang, Jane, Isella, Andrea, Kurtovic, Nicolas, Ricci, Luca, Wilner, David J.
Rings and gaps are among the most widely observed forms of substructure in protoplanetary disks. A gap-ring pair may be formed when a planet carves a gap in the disk, which produces a local pressure maximum following the gap that traps inwardly drift
Externí odkaz:
http://arxiv.org/abs/2406.12819
Autor:
Díaz-Berríos, Javiera K., Guzmán, Viviana V., Walsh, Catherine, Öberg, Karin I., Cleeves, L. Ilsedore, de la Villarmois, Elizabeth Artur, Carpenter, John
Most stars are born in stellar clusters and their protoplanetary disks, which are the birthplaces of planets, can therefore be affected by the radiation of nearby massive stars. However, little is known about the chemistry of externally irradiated di
Externí odkaz:
http://arxiv.org/abs/2405.00615
Autor:
Hernández-Vera, Claudio, Guzmán, Viviana V., de la Villarmois, Elizabeth Artur, Öberg, Karin I., Cleeves, L. Ilsedore, Hogerheijde, Michiel R., Qi, Chunhua, Carpenter, John, Fayolle, Edith C.
Publikováno v:
ApJ 967(1), 68 (2024)
H$_2$CO is a small organic molecule widely detected in protoplanetary disks. As a precursor to grain-surface formation of CH$_3$OH, H$_2$CO is considered an important precursor of O-bearing organic molecules that are locked in ices. Still, since gas-
Externí odkaz:
http://arxiv.org/abs/2404.06133
Autor:
Pety Jérôme, Gerin Maryvonne, Bron Emeric, Gratier Pierre, Orkisz Jan H., Palud Pierre, Roueff Antoine, Einig Lucas, Santa-Maria Miriam G., de Souza Magalhaes Victor, Bardeau Sébastien, Chanussot Jocelyn, Chainais Pierre, Goicoechea Javier R., Guzman Viviana V., Hughes Annie, Kainulainen Jouni, Languignon David, Levrier François, Lis Darek, Liszt Harvey S., Le Bourlot Jacques, Le Petit Franck, Oberg Karin, Peretto Nicolas, Roueff Evelyne, Sievers Albrecht, Thouvenin Pierre-Antoine, Tremblin Pascal
Publikováno v:
EPJ Web of Conferences, Vol 265, p 00048 (2022)
Atoms and molecules have long been thought to be versatile tracers of the cold neutral gas in the universe, from high-redshift galaxies to star forming regions and proto-planetary disks, because their internal degrees of freedom bear the signature of
Externí odkaz:
https://doaj.org/article/16f83695e6ca42bb95b0428757602df7
Autor:
Bron Emeric, Roueff Evelyne, Gerin Maryvonne, Pety Jérôme, Gratier Pierre, Le Petit Franck, Guzman Viviana, Orkisz Jan, de Souza Magalhaes Victor, Gaudel Mathilde, Palud Pierre, Einig Lucas, Bardeau Sébastien, Chainais Pierre, Chanussot Jocelyn, Goicoechea Javier, Hughes Annie, Kainulainen Jouni, Languignon David, Le Bourlot Jacques, Levrier François, Lis Darek, Liszt Harvey, Öberg Karin, Peretto Nicolas, Roueff Antoine, Sievers Albrecht, Thouvenin Pierre-Antoine, Tremblin Pascal
Publikováno v:
EPJ Web of Conferences, Vol 265, p 00023 (2022)
The ionization fraction in neutral interstellar clouds is a key physical parameter controlling multiple physical and chemical processes, and varying by orders of magnitude from the UV irradiated surface of the cloud to its cosmic-ray dominated centra
Externí odkaz:
https://doaj.org/article/070a7e026c0a4b8f8f0957823754c1f4