Results 11 to 20 of about 313,584 (303)

A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4 [PDF]

, 2006
We present a catalog of 9316 spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey Data Release 4. We have selected the stars through photometric cuts and spectroscopic modeling, backed up by a set of visual inspections. Roughly 6000
Atsuko Nitta, Dan Long, Daniel J. Eisenstein, Donald P. Schneider, Eric H. Neilsen, Jr., Homeier D., Howard J. Brewington, Hugh C. Harris, J. Brinkmann, J. C. Barentine, James Liebert, Jurek Krzesiński, Liebert J., Marsh M. C., Michael Harvanek, Moehler S., Nicole Silvestri, S. J. Kleinman, Scott A. Anderson, Stephanie A. Snedden   +19 more
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High resolution UVES/VLT spectra of white dwarfs observed for the ESO SN Ia Progenitor Survey III. DA white dwarfs [PDF]

, 2009
Original article can be found at: http://www.aanda.org/ Copyright The European Southern Observatory (ESO) DOI: 10.1051/0004-6361/200912531Context. The ESO Supernova Ia Progenitor Survey (SPY) took high-resolution spectra of more than 1000 white dwarfs ...
Christlieb, N., Heber, U., Homeier, D., Koester, D., Lisker, T., Napiwotzki, R., Reimers, D., Voss, B.   +7 more
core   +2 more sources

The DB gap and a new class of pulsating white dwarfs

EPJ Web of Conferences, 2013
The recent systematic surveys providing enormously massive datasets of white dwarfs show that there is still a deficit of a factor of 2.5 in the DA/non-DA ratio within the temperature range of 30 000 K < Teff < 45 000 K, which has been regarded as the ...
Shibahashi H.
doaj   +1 more source

Origin of the DA and non-DA white dwarf stars [PDF]

International Astronomical Union Colloquium, 1989
Understanding the origin of DA and non-DA stars — the bifurcation of the white dwarf cooling sequence — is one of oldest and perniciously difficult problems in the white dwarf research field. Processes which could play a role have been discussed for years. For example, the idea of diffusive element separation was suggested by Schatzman (1958).
openaire   +1 more source

Analysis of cool DO-type white dwarfs from the Sloan Digital Sky Survey Data Release 10 [PDF]

, 2014
We report on the identification of 22 new cool DO-type white dwarfs (WD) detected in Data Release 10 (DR10) of the Sloan Digital Sky Survey (SDSS). Among them, we found one more member of the so-called hot-wind DO WDs, which show ultrahigh excitation ...
Fusillo, N. P. Gentile, Gänsicke, B. T., Kepler, S. O., Rauch, T., Reindl, N., Werner, K.   +5 more
core   +2 more sources

Do Hydrogen-Deficient Carbon Stars Have Winds? [PDF]

, 2009
We present high resolution spectra of the five known hydrogen-deficient carbon (HdC) stars in the vicinity of the 10830 angstrom line of neutral helium. In R Coronae Borealis (RCB) stars the He I line is known to be strong and broad, often with a P Cygni
Clayton, Geoffrey C., Geballe, T. R., Rao, N. Kameswara   +2 more
core   +3 more sources

An Initial Survey of White Dwarfs in the Sloan Digital Sky Survey [PDF]

, 2003
An initial assessment is made of white dwarf and hot subdwarf stars observed in the Sloan Digital Sky Survey. In a small area of sky (190 square degrees), observed much like the full survey will be, 269 white dwarfs and 56 hot subdwarfs are identified ...
Alan Uomoto, Atsuko Nitta, Boyle B. J., Brian Yanny, Bruce Margon, Conard C. Dahn, Dan Vanden Berk, Daniel Eisenstein, David J. Schlegel, Donald G. York, Donald P. Schneider, Donald Q. Lamb, Dreizler S., Evans D. W., Gary Schmidt, Gillian R. Knapp, Gregory S. Hennessy, Hintzen P., Homeier D., Hugh C. Harris, J. Allyn Smith, J. Brinkmann, James E. Gunn, James Liebert, Jeffrey A. Munn, Jeffrey R. Pier, Jurek Krzesiski, Liebert J., Mark SubbaRao, Matthew J. Collinge, Michael A. Strauss, Nicole M. Silvestri, Patrick B. Hall, Paula Szkody, Pottasch S. R., R. C. Nichol, Reimers D., Robert H. Lupton, Robert Hindsley, S. J. Kleinman, Scott Burles, Scott F. Anderson, Stephen Kent, Suzanne Hawley, Wehrse R., Wickramasinghe D. T., Xiaohui Fan, Zeljko Ivezi   +47 more
core   +1 more source

O consumo da experiência na ficção seriada televisiva: Gilmore Girls e a cidade de Stars Hollow

Lumina, 2017
Neste artigo, analisamos a importância da cidade de Stars Hollow na experiência de consumo da série televisiva Gilmore Girls a partir de duas premissas. A primeira é que a pequena cidade fictícia localizada no estado de Connecticut se configura como uma ...
Mayka Castellano, Melina Meimaridis
doaj   +1 more source

"The Visit" (2021), de Chimamanda Ngozi Adichie: feminismo literário e ficção especulativa

Ilha do Desterro, 2023
Bastante difundido nos Estados Unidos, o termo “ficção especulativa” indica uma extensa produção literária na qual conjunturas, tempos e espaços alternativos têm sido imaginados, resultando em um corpus literário rico de significados.
Cláudio R. V. Braga
doaj   +1 more source

A PRESENÇA DA FRAGMENTAÇÃO CONSTITUCIONAL NO SENADO GALÁCTICO DA FRANQUIA STAR WARS

Revista de Direito Brasileira, 2022
Na história de Star Wars, em que pese a República Galáctica tenha instituído um ordenamento jurídico universal, há planetas com leis próprias, direitos não-oficiais, em um exemplo claro de pluralismo jurídico. Na contemporaneidade, é possível constatar que, assim como no filme, os atuais modelos de direito não conseguem mais abranger a todos os ...
Leonel Severo Rocha, Pedro Ernesto Neubarth Fernandes, Rosele Joaquim Centeno   +2 more
openaire   +2 more sources