Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Marcelo L. Leal"'
Autor:
Igor L. Baptista, Willian J. Silva, Guilherme G. Artioli, Joao Paulo L. F. Guilherme, Marcelo L. Leal, Marcelo S. Aoki, Elen H. Miyabara, Anselmo S. Moriscot
Publikováno v:
PLoS ONE, Vol 8, Iss 10 (2013)
Externí odkaz:
https://doaj.org/article/bc58fcda4fba468ca9ae824b6751a1e4
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 483:5077-5104
In this second paper in a series of papers based on the most-up-to-date catalogue of symbiotic stars (SySts), we present a new approach for identifying and distinguishing SySts from other Halpha emitters in photometric surveys using machine learning
We present a new census of Galactic and extragalactic symbiotic stars (SySts). This compilation contains 323 known and 87 candidate SySts. Of the confirmed SySts, 257 are Galactic and 66 extragalactic. The spectral energy distributions (SEDs) of 348
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb6b9ec1e0ccab894c4fd1f354e6896b
Autor:
D. J. Stock, Isabel Aleman, Hektor Monteiro, Bram B. Ochsendorf, Christophe Morisset, Marcelo L. Leal-Ferreira, Jeronimo Bernard-Salas, Els Peeters, Alexander G. G. M. Tielens, Stavros Akras, Jan Cami, Carlos E Paladini, Roger Wesson, Nick L. J. Cox
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the RAS (0035-8711), 490(2), 2475-2494
Monthly Notices of the RAS (0035-8711), 490(2), 2475-2494
We present a detailed analysis of deep VLT/X-Shooter observations of the planetary nebula Tc 1. We calculate gas temperature, density, extinction, and abundances for several species from the empirical analysis of the total line fluxes. In addition, a
Autor:
Jeremy R. Walsh, Roger Wesson, Albert A. Zijlstra, Marcelo L. Leal-Ferreira, Stefan Kimeswenger, M. J. Barlow, Toshiya Ueta, Ana Monreal-Ibero, Masaaki Otsuka
Publikováno v:
Walsh, J R, Monreal-Ibero, A, Barlow, M J, Ueta, T, Wesson, R, Zijlstra, A A, Kimeswenger, S, Leal-Ferreira, M L & Otsuka, M 2018, ' An imaging spectroscopic survey of the planetary nebula NGC 7009 with MUSE ', Astronomy and Astrophysics, vol. 620, A169 . https://doi.org/10.1051/0004-6361/201833445
Astronomy and Astrophysics
Astronomy and Astrophysics, 620, A169
Astronomy and Astrophysics
Astronomy and Astrophysics, 620, A169
The spatial structure of the emission lines and continuum over the 50 arcsecond extent of the nearby, O-rich, planetary nebula NGC 7009 (Saturn Nebula) have been observed with the MUSE integral field spectrograph on the ESO Very Large Telescope. Scie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb2d74bbbce80d1a34d1e384ee26e2cd
https://www.research.manchester.ac.uk/portal/en/publications/an-imaging-spectroscopic-survey-of-the-planetary-nebula-ngc-7009-with-muse(86eaccbf-ccc4-4334-be7c-0435abafe74f).html
https://www.research.manchester.ac.uk/portal/en/publications/an-imaging-spectroscopic-survey-of-the-planetary-nebula-ngc-7009-with-muse(86eaccbf-ccc4-4334-be7c-0435abafe74f).html
Autor:
Isabel Aleman, Masaaki Otsuka, Francisca Kemper, Marcelo L. Leal-Ferreira, Els Peeters, Jeronimo Bernard-Salas, Peter Scicluna, Jan Cami, Bram B. Ochsendorf
Publikováno v:
Proceedings of the International Astronomical Union. 12:254-258
We performed a detailed spectroscopic analysis of the fullerene C60-containing planetary nebula (PN) Lin49 in the Small Magellanic Cloud (SMC). Lin49 is a C-rich and metal-deficient PN (Z~0.0006) and its nebular abundances are in agreement with the A
Autor:
Rhiannon Gardiner, Alexander G. G. M. Tielens, Toshiya Ueta, Andrea Gaughan, Marcelo L. Leal-Ferreira, Blair C. Conn, D. Ladjal, Samuel Kerber, Isabel Aleman
Publikováno v:
Proceedings of the International Astronomical Union. 12:345-347
We observed the Planetary Nebula NGC 6720 with the Gemini Telescope and the Gemini Multi-Object Spectrographs. We obtained spatial maps of 36 emission-lines in the wavelength range between 3600 Å and 9400 Å. We derived maps of c(Hβ), electronic de
Autor:
Masaaki, Otsuka, Toshiya, Ueta, Peter A M, van Hoof, Raghvendra, Sahai, Isabel, Aleman, Albert A, Zijlstra, You-Hua, Chu, Eva, Villaver, Marcelo L, Leal-Ferreira, Joel, Kastner, Ryszard, Szczerba, Katrina M, Exter
Publikováno v:
The Astrophysical journal. Supplement series. 231(2)
We perform a comprehensive analysis of the planetary nebula (PN) NGC 6781 to investigate the physical conditions of each of its ionized, atomic, and molecular gas and dust components and the object’s evolution, based on panchromatic observational d
Autor:
Jeronimo Bernard-Salas, Marcelo L. Leal-Ferreira, Jan Cami, Bram B. Ochsendorf, Peter Scicluna, Francisca Kemper, Masaaki Otsuka, Isabel Aleman, Els Peeters
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 462(1), 12-34
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society
We performed a detailed spectroscopic analysis of the fullerene C60-containing planetary nebula (PN) Lin49 in the Small Magellanic Cloud using XSHOOTER at the ESO VLT and the Spitzer/IRS instruments. We derived nebular abundances for nine elements. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8254b20824373c3359b37aaa51eead72
http://adsabs.harvard.edu/abs/2016MNRAS.462...12O
http://adsabs.harvard.edu/abs/2016MNRAS.462...12O
Autor:
Eric Lagadec, Michael Lindqvist, A. Mayer, Wouter Vlemmings, Marcelo L. Leal-Ferreira, Alain Jorissen, Hans Olofsson, Markus Wittkowski, Sofia Ramstedt, Franz Kerschbaum, Claudia Paladini, S. Mohamed, Stéphane Sacuto, Alain Baudry, Matthias Maercker, Rodolfo Montez, A. F. Pérez-Sánchez, E. De Beck, Elizabeth Humphreys, Nick L. J. Cox
Publikováno v:
Astronomy and Astrophysics (0004-6361) vol.570(2014)
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2014, 570, pp.id.L14. ⟨10.1051/0004-6361/201425029⟩
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2014, 570, pp.id.L14. ⟨10.1051/0004-6361/201425029⟩
We have mapped the CO(3-2) line emission around the Mira AB system at 0.5 resolution using the Atacama Large Millimeter/submillimeter Array (ALMA). The CO map shows amazing complexity. The circumstellar gas has been shaped by different dynamical acto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4136e691de304decdd8b036f2e4294cb
https://research.chalmers.se/en/publication/207680
https://research.chalmers.se/en/publication/207680