scholarly journals Multiple ring nebulae around blue supergiants

2008 ◽  
Vol 488 (2) ◽  
pp. L37-L41 ◽  
Author(s):  
S. M. Chiţǎ ◽  
N. Langer ◽  
A. J. van Marle ◽  
G. García-Segura ◽  
A. Heger
Keyword(s):  
1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.


1996 ◽  
Vol 53 (6) ◽  
pp. 3497-3505 ◽  
Author(s):  
Stephen B. Haley ◽  
Herman J. Fink
Keyword(s):  

1978 ◽  
Vol 100 (16) ◽  
pp. 5134-5140 ◽  
Author(s):  
Roger P. Kirchen ◽  
Ted S. Sorensen ◽  
Kim E. Wagstaff

2014 ◽  
Vol 2 (2) ◽  
pp. 63-63
Author(s):  
Jun Tsugawa ◽  
Sho Takeshita ◽  
Shinji Ouma ◽  
Toshiyasu Ogata ◽  
Jiro Fukae ◽  
...  

2018 ◽  
Vol 5 (5) ◽  
pp. 2020
Author(s):  
Pareshkumar A. Thakkar ◽  
Aakashi Shah ◽  
Bakul B. Javadekar ◽  
Saurabh Modasia

We report a case of congenital toxoplasmosis in a male child who presented at 1 month 21 days of life. He had a past history of meningitis on third day of life which resolved with intravenous antibiotics. This time, the child presented with progressive enlargement of head and CSF (Cerebrospinal fluid) showed elevated protein levels with cellular reaction and CT scan showed dilated ventricular system with aqueductal obstruction and multiple ring-enhancing lesions in bifrontal and bioccipital regions with a right porencephalic cyst. Repeat CSF after 14 days of intravenous antibiotics showed elevated protein with no cellular reaction. Fundus examination was normal. Toxoplasma blood serology (IgG and IgM) in baby and mother were positive. The child received treatment with Pyrimethamine, Clindamycin, Folinic acid and Prednisolone. CSF parameters got normalized and multiple ring-enhancing lesions disappeared on repeat CT scan. He underwent a Ventriculo-Peritoneal shunt surgery for the hydrocephalus and was discharged in a stable condition.


2005 ◽  
Vol 436 (1) ◽  
pp. 155-163 ◽  
Author(s):  
C. Cappa ◽  
V. S. Niemela ◽  
M. C. Martín ◽  
N. M. McClure-Griffiths
Keyword(s):  

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