Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Luridiana, V."'
Autor:
Madonna, S., García-Rojas, J., Sterling, N. C., Delgado-Inglada, G., Mesa-Delgado, A., Luridiana, V., Roederer, I. U., Mashburn, A. L.
We analyze the chemical composition of the planetary nebula (PN) NGC 5315, through high-resolution (R = 40000) optical spectroscopy with UVES at the Very Large Telescope, and medium-resolution (R = 4800) near-infrared spectroscopy with FIRE at Magell
Externí odkaz:
http://arxiv.org/abs/1706.07225
Autor:
Sterling, N. C., Madonna, S., Butler, K., Garcia-Rojas, J., Mashburn, A. L., Morisset, C., Luridiana, V., Roederer, I. U.
We identify [Se III] 1.0994 micron in the planetary nebula (PN) NGC 5315 and [Kr VI] 1.2330 micron in three PNe, from spectra obtained with the FIRE spectrometer on the 6.5-m Baade Telescope. Se and Kr are the two most widely-detected neutron-capture
Externí odkaz:
http://arxiv.org/abs/1704.00741
We have done a spectroscopical analysis of the type I planetary nebula (PN) NGC 5315, through high-resolution (R$\sim$40000) optical spectroscopy with UVES at the 8.2m Very Large Telescope, and medium-resolution (R$\sim$4800) near-IR spectroscopy wit
Externí odkaz:
http://arxiv.org/abs/1611.02175
The chemical content of the planetary nebula NGC 3918 is investigated through deep, high-resolution (R~40000) UVES at VLT spectrophotometric data. We identify and measure more than 750 emission lines, making ours one of the deepest spectra ever taken
Externí odkaz:
http://arxiv.org/abs/1510.04548
Autor:
García-Rojas, J., Madonna, S., Luridiana, V., Sterling, N. C., Morisset, C., Delgado-Inglada, G., Cipriano, L. Toribio San
(Abridged) The chemical content of the planetary nebula NGC 3918 is investigated through deep, high-resolution UVES at VLT spectrophotometric data. We identify and measure more than 750 emission lines, making ours one of the deepest spectra ever take
Externí odkaz:
http://arxiv.org/abs/1506.07079
We present deep, high-resolution (R~40000) UVES at VLT spectrophotometric data of the planetary nebula NGC 3918. This is one of the deepest spectra ever taken of a planetary nebula. We have identified and measured more than 700 emission lines and, in
Externí odkaz:
http://arxiv.org/abs/1412.2071
Autor:
Guerrero, M. A., Toalá, J. A., Medina, J. J., Luridiana, V., Miranda, L. F., Riera, A., Velázquez, P. F.
The propagation of a shock wave into a medium is expected to heat the material beyond the shock, producing noticeable effects in intensity line ratios such as [O III]/Halpha. To investigate the occurrence of shocks in planetary nebulae (PNe), we have
Externí odkaz:
http://arxiv.org/abs/1307.8435
Autor:
Núñez-Díaz, M., Mesa-Delgado, A., Esteban, C., López-Martín, L., García-Rojas, J., Luridiana, V.
We present results from integral field optical spectroscopy with the Potsdam Multi-Aperture Spectrograph of the Herbig-Haro (HH) object HH 204, with a spatial sampling of 1 x 1 arcsec^2. We have obtained maps of different emission lines, physical con
Externí odkaz:
http://arxiv.org/abs/1201.3242
We present a review on the determination of the primordial helium abundance Yp, based on the study of hydrogen and helium recombination lines in extragalactic HII regions. We also discuss the observational determinations of the increase of helium to
Externí odkaz:
http://arxiv.org/abs/0912.0764
Autor:
Mesa-Delgado, A., Esteban, C., García-Rojas, J., Luridiana, V., Bautista, M., Rodríguez, M., López-Martín, L., Peimbert, M.
We present results of deep echelle spectrophotometry of the brightest knot of the HH202 in the Orion Nebula --HH202-S-- using the ultraviolet Visual Echelle Spectrograph (UVES). The high spectral resolution has permitted to separate the component ass
Externí odkaz:
http://arxiv.org/abs/0901.4311