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The emerging planetary nebula CRL 618 and its unsettled central star(S)

Autor
Balick, B.; Riera, A.; Raga, A. C.; Kwitter, K.; Velázquez, Pablo F.
Tipus d'activitat
Article en revista
Revista
Astrophysical journal
Data de publicació
2014-11-01
Volum
795
Número
1
Pàgina inicial
1
Pàgina final
8
DOI
https://doi.org/10.1088/0004-637X/795/1/83 Obrir en finestra nova
URL
http://iopscience.iop.org/0004-637X/795/1/83/pdf/0004-637X_795_1_83.pdf Obrir en finestra nova
Resum
We report deep long-slit emission-line spectra, the line flux ratios, and Doppler profile shapes of various bright optical lines. The low-ionization lines (primarily [N I], [O I], [S II], and [N II]) originate in shocked knots, as reported by many previous observers. Dust-scattered lines of higher ionization are seen throughout the lobes but do not peak in the knots. Our analysis of these line profiles and the readily discernible stellar continuum shows that (1) the central star is an active sym...
Paraules clau
outflows, planetary nebulae: individual (CRL 618), stars: AGB and post-AGB, stars: winds
Grup de recerca
GAA - Grup d'Astronomia i Astrofísica

Participants

  • Balick, Bruce  (autor)
  • Riera Mora, M. Angeles  (autor)
  • Raga Rasmussen, Alejandro Cristian  (autor)
  • Kwitter, Karen B.  (autor)
  • Velázquez Brito, Pablo Fabian  (autor)