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| Paper: |
Tracing the B[e] Phenomenon with the Narrow-Band Δ a Photometric System |
| Volume: |
508, The B[e] Phenomenom: Forty Years of Studies |
| Page: |
143 |
| Authors: |
Paunzen, E.; Janík, J.; Kurfürst, P.; Liška, J.; Netopil, M.; Skarka, M.; Zejda, M. |
| Abstract: |
We present a case study and first results of the 3 filter narrow-band Δ a
photometric system to detect B[e] stars in an efficient way. One filter measures the
flux at 5200 Å where several Fe II emission lines are located. On the basis of available
spectra, we investigated the expected area in the diagnostic tool of the Δ a system, the
so-called normality line, where these objects are located. They are well separated from
all other known non-standard stars in the corresponding Teff (color) region. The first
results of our photometric survey in the Magellanic Clouds are very promising and
show the high potential of Δ a photometry to significantly contribute to this research
field. |
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