Published February 1989 | Version v1
Journal article Metadata-only

Slow expansion of the shell of the recurrent nova T Pyxidis and detection of a faint extended envelope

Creators

  • 1. Palomar Observatory, Pasadena, CA (USA)
  • 2. Observatorio Interamericano de Cerro Tololo, La Serena (Chile)
  • 3. Montreal Universite (Canada)
  • 4. Space Telescope Science Institute, Baltimore, MD (USA)
  • 5. NASA, Goddard Space Flight Center, Greenbelt (USA)

Description

New H-alpha narrow-based CCD imaging of the recurrent nova T Pyxidis and the detection of a very faint, extended H-alpha halo surrounding the already known shell are reported. A forbidden O III image containing an emitting shell with a morphology different from that of the H-alpha shell is presented, and measurements of the H-alpha shell expansion are reported which rule out the 1966 eruption date for the shell origin, assuming uniform expansion. It is proposed that the observed shell consists of slowly moving, solar abundance ejecta which are photoionized. 18 references

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
337
Series
Astrophys. J.
Journal Page Range
720-729
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20067349
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BALMER LINES; ERUPTIVE VARIABLE STARS; EXPANSION; IMAGE PROCESSING; MASS TRANSFER; MORPHOLOGICAL CHANGES; NOVAE; ORIGIN; PHOTOIONIZATION; PLANETARY NEBULAE; SPECTROSCOPY; TELESCOPES
Descriptors DEC
BINARY STARS; IONIZATION; NEBULAE; STARS; VARIABLE STARS