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Eta Carinae's historical light curve: evidence for cyclic Roche lobe overflow from the primary star
Augusto Damineli, Leonardo A. Almeida, Francisco J. Jablonski +5
The large amount of ground-based photometric measurements of Carinae obtained since 1940 have remained problematic for quantitative modeling due to the blending of flux from th…
Eta Carinae left a curious ladder to climb
Theodore R. Gull, Henrik Hartman, Michael F. Corcoran +5
Eta Carinae underwent the Great Eruption in the 1840s and a Lesser Eruption in the 1890s. Its apparent spectrum, modified by intervening ejecta, the Homunculus and Little Homunculu…
Long-term evolution in ionization of ejecta illuminated by Eta Carinae
Augusto Damineli, Noel D. Richardson, Felipe Navarete +6
Changes in the flux and spectrum of Eta Carinae since 1900 have been attributed to the evolution of the central binary by some. Others suggest evolution in the occulting ejecta. Th…
Eta Carinae: the dissipating occulter is an extended structure
Theodore R. Gull, Henrik Hartman, Mairan Teodoro +10
Previous STIS long-slit observations of Eta Carinae identified numerous absorption features in both the stellar spectrum, and in the adjacent nebular spectra, along our line-of-sig…
The orbital kinematics of eta Carinae over three periastra with a possible detection of the elusive secondary's motion
Emily Strawn, Noel D. Richardson, Anthony F. J. Moffat +14
The binary eta Carinae is the closest example of a very massive star, which may have formed through a merger during its Great Eruption in the mid-nineteenth century. We aimed to co…
Distance and age of the massive stellar cluster Westerlund 1. II. The eclipsing binary W36
Danilo F. Rocha, Leonardo A. Almeida, Augusto Damineli +3
Westerlund 1 (Wd 1) is one of the most relevant star clusters in the Milky Way to study massive star formation, although it is still poorly known. Here, we used photometric and spe…