Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...530l.107d&link_type=abstract
The Astrophysical Journal, Volume 530, Issue 2, pp. L107-L110.
Astronomy and Astrophysics
Astronomy
42
Stars: Individual: Constellation Name: &Eta, Carinae
Scientific paper
Ground-based spectroscopy of η Car shows periodic changes in some emission-line wavelengths. These variations have been cited as strong evidence that this object is a 5.5 yr binary system and have been used to produce specific orbit models. High spatial resolution data obtained with the Hubble Space Telescope/Space Telescope Imaging Spectrograph, however, do not confirm the predicted velocity behavior; therefore, the published orbit models are almost certainly invalid. Wavelength fluctuations seen at ground-based spatial resolution most likely result from other effects, which we describe. If this object is a binary system (which has not been proven), then the parameters of the secondary star and of the orbit remain largely unknown.
Davidson Kris
Gull Theodore R.
Humphreys Roberta M.
Ishibashi Kazunori
Smith Nathan
No associations
LandOfFree
η Carinae: Testing a Binary Orbit Model with the Hubble Space Telescope/Space Telescope Imaging Spectrograph 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 η Carinae: Testing a Binary Orbit Model with the Hubble Space Telescope/Space Telescope Imaging Spectrograph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and η Carinae: Testing a Binary Orbit Model with the Hubble Space Telescope/Space Telescope Imaging Spectrograph will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1492502