409 citations · 1.3k across the 41 of their papers we have counts for
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Formation of Raman Scattering Wings around H alpha, H beta and Pa alpha in Active Galactic Nuclei
Seok-Jun Chang, Jeong-Eun Heo, Francesco Di Mille +3
Powered by a supermassive black hole with an accretion disk, the spectra of active galactic nuclei (AGNs) are characterized by prominent emission lines including Balmer lines. The…
A Low-Resolution Spectroscopic Exploration of Puzzling OGLE Variable Stars
P. Pietrukowicz, M. Latour, R. Angeloni +4
We present the results of a spectroscopic follow-up of various puzzling variable objects detected in the OGLE-III Galactic disk and bulge fields. The sample includes mainly short-p…
An Updated Census of RR~Lyrae Stars in the Globular Cluster ~Centauri (NGC\,5139)
C. Navarrete, R. Contreras Ramos, M. Catelan +7
[ABRIDGED] Centauri (NGC 5139) contains large numbers of variable stars of different types and, in particular, more than a hundred RR Lyrae stars. We have conducted a variabili…