Zobrazeno 1 - 10
of 89
pro vyhledávání: '"F. Sabbadin"'
Publikováno v:
The Astronomical Journal. 134:1679-1692
We have determined the gas kinematics, diagnostic and ionic radial profiles, spatial structure, and evolutionary phase of NGC 6720 (the Ring Nebula) by means of tomography and a three-dimensional recovery technique applied to long-slit high-resolutio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92edf45ca93c92ad9c6164e2e6503c64
https://doi.org/10.1086/521823
https://doi.org/10.1086/521823
Publikováno v:
Scopus-Elsevier
Long-slit echellograms of the high excitation planetary nebula NGC1501, reduced according to the methodology developed by Sabbadin et al. (2000a, b), allowed us to obtain the ``true'' distribution of the ionized gas in the eight nebular slices covere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd8fe049b3ae619892db2550c5868c29
https://doi.org/10.1051/0004-6361:20010229
https://doi.org/10.1051/0004-6361:20010229
Autor:
Poonam Chandra, Adalbert W. A. Pauldrach, Luca Pasquini, Nancy Elias-Rosa, Christian Wolf, Wolfgang Hillebrandt, Stephen Justham, Joshua D. Simon, Paolo A. Mazzali, Ken'ichi Nomoto, F. Sabbadin, Douglas C. Leonard, Ferdinando Patat, Ian A. Crawford, Andrea Pastorello, Massimo Turatto, Enrico Cappellaro, Stefano Benetti, Avishay Gal-Yam, Alvio Renzini, Ph. Podsiadlowski, Roger A. Chevalier
Publikováno v:
Science. 317:924-926
Type Ia supernovae are thought to be thermonuclear explosions of accreting white dwarfs that reach a critical mass limit. Despite their importance as cosmological distance indicators, the nature of their progenitors has remained controversial. Here w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ebf06c7008d287b5bfb920ef3271963
https://doi.org/10.1126/science.1143005
https://doi.org/10.1126/science.1143005
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 267:871-880
By comparing red and infrared POSS prints of the field 18 h 48 m +0° we have identified four hitherto unknown emission nebulae. Three of these turn out to be compact planetary nebulae, two of which are probably type I PNe. None of these three nebula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c972ef5a3e49279b40a3f38e738c10d0
https://doi.org/10.1093/mnras/267.4.871
https://doi.org/10.1093/mnras/267.4.871
We have combined recent Hubble Space Telescope WFPC2 images in the [O III] 5007 and [N II] 6583 lines with similar images made 9.557 years earlier to determine the motion of the Ring Nebula within the plane of the sky. Scaled ratio images argue for h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac3f8f64f87853d1aef178469cefa68f
Autor:
Enrico V. Held, F. Sabbadin, I. Saviane, Luca Rizzi, Yazan Momany, Fabio Bresolin, Marco Gullieuszik
Publikováno v:
Astrophysics and Space Science Proceedings ISBN: 9781402091896
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca809f5b6c20f7025e06b5ae2d3a1d4
https://doi.org/10.1007/978-1-4020-9190-2_4
https://doi.org/10.1007/978-1-4020-9190-2_4
Publikováno v:
Physics of Classical Novae ISBN: 9783540535003
New spectroscopic observations of the old nova CP Pup suggest most probable orbital period of 0.061375 days. First systematic monitoring of the very old nova V841 Oph reveals orbital motion with a most probable period of about 0.6 days. A slightly ec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9e45c0ddde8489cb9270ce0e391fadf
https://doi.org/10.1007/3-540-53500-4_99
https://doi.org/10.1007/3-540-53500-4_99
This paper - the first of a short series dedicated to the long-stan ding astronomical problem of de-projecting the bi-dimensional apparent morpholog y of a three-dimensional mass of gas - focuses on the density distribution in real Planetary Nebulae
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::662c70a8ecb92df3fdda1981ebf84712
http://arxiv.org/abs/astro-ph/0601283
http://arxiv.org/abs/astro-ph/0601283
We infer the gas kinematics, diagnostics and ionic radial profiles, distance and central star parameters, nebular photo- ionization model, spatial structure and evolutionary phase of the PN NGC 6741 by means of long-slit high-resolution spectra at ni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24ae5874b0e9934ed121e3b48f7f8564
http://arxiv.org/abs/astro-ph/0502101
http://arxiv.org/abs/astro-ph/0502101
Tomographic and 3-D analyses for extended, emission-line objects are applied to long-slit ESO NTT + EMMI high-resolution spectra of the intriguing planetary nebula NGC 7009, covered at twelve position angles. We derive the gas expansion law, the diag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6b51b3f199b2921531f394ad6125a92
http://arxiv.org/abs/astro-ph/0312261
http://arxiv.org/abs/astro-ph/0312261