Active Luminous Blue Variables in the Large Magellanic Cloud
- Walborn, Nolan R.
- Gamen, Roberto Claudio
- Morrell, Nidia Irene
- Barba, Rodolfo Hector
- Fernandez Lajus, Eduardo Eusebio
- Angeloni, Rodolfo
DOIAbstract
We present extensive spectroscopic and photometric monitoring of two famous and currently highly active luminous blue variables (LBVs) in the Large Magellanic Cloud (LMC), together with more limited coverage of three further, lesser known members of the class. R127 was discovered as an Ofpe/WN9 star in the 1970s but entered a classical LBV outburst in or about 1980 that is still in progress, thus enlightening us about the minimum state of such objects. R71 is currently the most luminous star in the LMC and continues to provide surprises, such as the appearance of [Ca ii] emission lines, as its spectral type becomes unprecedentedly late. Most recently, R71 has developed inverse P Cyg profiles in many metal lines. The other objects are as fol...
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