HST/GHRS Observations of the Compact Slow Ejecta of ETA Carinae

Details HST/GHRS Observations of the Compact Slow Ejecta of ETA Carinae HST/GHRS Observations of the Compact Slow Ejecta of ETA Carinae

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....113..335d&link_type=abstract

Astronomical Journal v.113, p. 335-345 (1997)

Astronomy and Astrophysics

Astronomy

71

Scientific paper

We report spectroscopic observations of eta Car and adjacent gas with an unprecedented combination of spatial and spectral resolution, 0.1 arcsec x 0.1 Angstroms. Radial velocities show that the bright objects C and D, 0.2 arcsec from the star, are slow equatorial ejecta. The narrow emission lines which fluctuate in the spectrum of the core region are found to originate in C, D, and related gas. Our data and earlier speckle observations suggest that either C and D were formed long after the Great Eruption of eta Car had ceased, or else they have been continuously accelerated outward since they were ejected. These strange objects are essential components of the equatorial-debris puzzle, which is crucial regarding the nature of this star and its instability. Moreover, the observed bright narrow emission lines in CD are excited by peculiar mechanisms that deserve more attention.

Affiliated with

Also associated with

No associations

Rating

HST/GHRS Observations of the Compact Slow Ejecta of ETA Carinae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with HST/GHRS Observations of the Compact Slow Ejecta of ETA Carinae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST/GHRS Observations of the Compact Slow Ejecta of ETA Carinae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1784891