Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Gómez, Jose F."'
Autor:
Cala, Roldán A., Gómez, José F., Miranda, Luis F., Imai, Hiroshi, de Gregorio-Monsalvo, Itziar, Mitrea, Florin Placinta, Osorio, Mayra, Anglada, Guillem
Maser emission of SiO, H$_2$O and, OH is widespread in Asymptotic Giant Branch (AGB) stars with oxygen(O)-rich envelopes. This emission quickly disappear during the post-AGB phase and is extremely rare in planetary nebulae (PN). So far, only eight PN
Externí odkaz:
http://arxiv.org/abs/2410.22785
Autor:
Cala, Roldán A., Miranda, Luis F., Gómez, José F., Morisset, Christophe, Soto, Federico, Guillén, Pedro F., Vázquez, Roberto
Publikováno v:
A&A 691, A321 (2024)
IRAS 22568+6141 has been classified as a low-ionisation planetary nebula (PN) and presents non-thermal radio continuum emission, which could be a signature of nascent PNe. We present intermediate-resolution long-slit spectra obtained in 2021 and 2023
Externí odkaz:
http://arxiv.org/abs/2410.16786
Autor:
Gomez, Jose F., Torrelles, Jose M., Girart, Josep M., Surcis, Gabriele, Kim, Jeong-Sook, Canto, Jorge, Anglada, Guillem, Curiel, Salvador, Vlemmings, Wouter H. T., Carrasco-Gonzalez, Carlos, Rodriguez-Kamenetzky, Adriana R., Kim, Soon-Wook, Goddi, Ciriaco, van Langevelde, Huib J., Sanchez-Monge, Alvaro
We have carried out ALMA observations of the massive star-forming region W75N(B), which contains the massive protostars VLA1, VLA2, and VLA3. Particularly, VLA2 is an enigmatic protostar associated with a wind-driven H$_2$O maser shell, which has evo
Externí odkaz:
http://arxiv.org/abs/2310.08086
Autor:
Imai, Hiroshi, Hamae, Yuhki, Amada, Kei, Nakashima, Keisuke, Shum, Ka-Yiu, Kasai, Rina, Gomez, Jose F., Uscanga, Lucero, Tafoya, Daniel, Orosz, Gabor, Burns, Ross A.
This paper describes the overview of the FLASHING (Finest Legacy Acquisitions of SiO-/ H$_2$O-maser Ignitions by the Nobeyama Generation) project promoted using the 45 m telescope of Nobeyama Radio Observatory, which aims to intensively monitor H$_2$
Externí odkaz:
http://arxiv.org/abs/2309.00657
Autor:
Cala, Roldán A., Gómez, José F., Miranda, Luis F., Uscanga, Lucero, Breen, Shari L., Dawson, Joanne R., de Gregorio-Monsalvo, Itziar, Imai, Hiroshi, Qiao, Hai-Hua, Suárez, Olga
The evolution of asymptotic giant branch stars from the spherical symmetry into the diverse shapes of planetary nebulae (PNe) is a topic of intensive research. Young PNe provide a unique opportunity to characterize the onset of this transitional phas
Externí odkaz:
http://arxiv.org/abs/2208.09199
Autor:
Khouri, Theo, Vlemmings, Wouter, Tafoya, Daniel, Pérez-Sánchez, Andrés F., Contreras, Carmen Sánchez, Gómez, José F., Imai, Hiroshi, Sahai, Raghvendra
One of the most poorly understood stellar evolutionary paths is that of binary systems undergoing common-envelope evolution, when the envelope of a giant star engulfs the orbit of a companion. Although this interaction leads to a great variety of ast
Externí odkaz:
http://arxiv.org/abs/2112.09689
Autor:
Diaz-Rodriguez, Ana K., Anglada, Guillem, Blázquez-Calero, Guillermo, Osorio, Mayra, Gómez, José F., Fuller, Gary A., Estalella, Robert, Torrelles, José M., Cabrit, Sylvie, Rodríguez, Luis F., Lefèvre, Charlène, Macías, Enrique, Carrasco-González, Carlos, Zapata, Luis A., de Gregorio-Monsalvo, Itziar, Ho, Paul T. P.
We present VLA and ALMA observations of the close (0.3" = 90 au separation) protobinary system SVS 13. We detect two small circumstellar disks (radii $\sim$12 and $\sim$9 au in dust, and $\sim$30 au in gas) with masses of $\sim$0.004-0.009 $M_{sun}$
Externí odkaz:
http://arxiv.org/abs/2111.11787
Autor:
Imai, Hiroshi, Uno, Yuri, Maeyama, Daichi, Yamaguchi, Ryosuke, Amada, Kei, Hamae, Yuhki, Orosz, Gabor, Gómez, José F., Tafoya, Daniel, Uscanga, Lucero, Burns, Ross A.
Publikováno v:
PASJ, 72, 58 (2020)
We discovered new high-velocity components of H$_2$O maser emission in one of the "water fountain" sources, IRAS~18286$-$0959, which has been monitored using the Nobeyama 45 m telescope in the new FLASHING (Finest Legacy Acquisitions of SiO- and H$_2
Externí odkaz:
http://arxiv.org/abs/2009.12722
Autor:
Tafoya, Daniel, Imai, Hiroshi, Gomez, Jose F., Nakashima, Jun-ichi, Orosz, Gabor, Yung, Bosco H. K.
Publikováno v:
The Astrophysical Journal Letters, Volume 890, Issue 1, id.L14 February 2020
One of the major puzzles in the study of stellar evolution is the formation process of bipolar and multi-polar planetary nebulae. There is growing consensus that collimated jets create cavities with dense walls in the slowly-expanding (10--20 ~km~s$^
Externí odkaz:
http://arxiv.org/abs/2006.07157
Autor:
Qiao, Hai-Hua, Breen, Shari L., Gomez, Jose F., Dawson, J. R., Walsh, Andrew J., Green, James A., Ellingsen, Simon P., Imai, Hiroshi, Shen, Zhi-Qiang
We present high spatial resolution observations of ground-state OH masers achieved with the Australia Telescope Compact Array (ATCA). These observations targeted 253 pointing centres containing OH maser candidates at all four ground-state OH transiti
Externí odkaz:
http://arxiv.org/abs/1912.04729