93 citations · 1.3k across the 42 of their papers we have counts for
4 papers · 1 filter
Discovery of a New Dusty B[e] Star in the Small Magellanic Cloud
John P. Wisniewski, Karen S. Bjorkman, Jon E. Bjorkman +1
We present new optical spectroscopic and archival Spitzer IRAC photometric observations of a B-type star in the SMC cluster NGC 346, NGC 346:KWBBe 200. We detect numerous Fe II, [O…
The Role of Evolutionary Age and Metallicity in the Formation of Classical Be Circumstellar Disks II. Assessing the Evolutionary Nature of Candidate Disk Systems
John P. Wisniewski, Karen S. Bjorkman, Antonio M. Magalhaes +3
(Abridged version) We present the first detailed imaging polarization observations of six SMC and six LMC clusters, known to have large populations of B-type stars which exhibit ex…
The Magnetic Field Structure of the LMC 2 Supershell: NGC 2100
John P. Wisniewski, Karen S. Bjorkman, Antonio M. Magalhaes +2
We present U,B,V,R,I imaging polarimetry of NGC 2100 and its surrounding environment, which comprise a part of the LMC 2 supershell. The morphology of the observed position angle d…
Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks
John P. Wisniewski, Adam F. Kowalski, Karen S. Bjorkman +3
The first results from a near-contemporaneous optical and infrared spectroscopic observing program designed to probe the detailed density structure of classical Be circumstellar di…