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Notes on the density of the disk/rings around B[e] supergiants

In Zickgraf et al. 1989 (A&A, 220, 206) there is a comment on the density of the disk around the supergiant LHA 115-S 18. In Table 1 they provide (following Waters 1986) the mean particle density at r=R* for a number of sources: 3.2 x 1012, 2.6 x 1012, 4.6 x 1012, 1.7 x 1012 […]

New paper on the circumstellar environment of galactic B[e] supergiants

Finally, after some years of work, it has been accepted for publication in MNRAS. Resolving the kinematics of the disks around Galactic B[e] supergiants Grigoris Maravelias, Michaela Kraus, Lydia S. Cidale, Marcelo Borges Fernandes, Maria L. Arias, Michel CurĂ©, Georgios Vasilopoulos B[e] Supergiants are luminous evolved massive stars. The mass-loss during this phase creates a […]

The (paper-)story of HD 87643

A summary for HD 87643 (or MWC 198, Hen 3-365, V640 Car, … see also Simbad). That is a great number of papers (similar to the post for GG Car). 1909 / Object of the Henry Draper catalog. 1933 / Merrill, P. W.; Burwell, C. G. 1933 (ApJ, 78, 87) First reference as a Be […]

The (paper-)story of Hen 3-298

Similarly to the post for GG Car, I though that it is better to keep a track of all papers I find for my sample. As far as Hen 3-298 (Simbad) the results are not that many! 1966 / Wray, J. D. 1966(PhD thesis, Northwestern University) First detection as an Hα emission star. 1976 / […]

The (paper-)story of GG Car

As I was diving into the literature of GG Car (aka HD 94878 or CPD-59 2855 or MWC 215 or … for more see Simbad!) I got overwhelmed of the number of papers and how back it goes. I only wanted to make a summary (for a forthcoming paper) but since I spent so much […]

New paper: The yellow hypergiant – B[e] supergiant connection

Our most recent work comes as a proceedings paper for the conference “Stars: from collapse to collapse” (Special Astrophysical Observatory, Nizhnij Arkhyz, Karachai-Cherkessian Republic, Russia, 3-7 October 2016): The yellow hypergiant – B[e] supergiant connection A. Aret, M. Kraus, I. Kolka, G. Maravelias B[e] supergiants and yellow hypergiants share a number of common properties regarding […]

The B[e] stars conference in Prague

During the last week I was traveling from Ondrejov forth and back to the “The B[e] Phenomenon: Forty Years of Studies”, in Prague (27 June – 1 July 2016). It was a nice conference with many interesting talks, and fruitful discussions. Most importantly, I met some old friends and made new ones! I was fortunate […]

Poster presentation at RAS meeting in UK

The very short and compact meeting of the Royal Astronomical Society “Bridging the gap: from massive stars to supernovae” was held in Kavli Royal Society Centre of Chicheley Hall, in the English countryside of Buckinghamshire (June 1-2). Even though it lasted two days only, a number of excellent talks was delivered discussing the connection or […]