Buscar
Mostrando ítems 11-20 de 288
A double plateau and unprecendented circumstellar variable sodium in the transient SN 2011A
(International Astronomical Union, 2013)
We present optical photometry and spectrosopy of the transient SN 2011A. Our
data spans 140 days after discovery including BVRIu’g’r’i’z’ photometry and a sequence of 11
spectra. First classified as a type IIn supernova ...
The circumstellar envelope of IRC+10216 from milli-arcsecond to arcmin scales
(Astronomy & Astrophysics, 2006-07-31)
The close circumstellar environment of Betelgeuse II. Diffraction-limited spectro-imaging from 7.76 to 19.50 mu m with VLT/VISIR
(EDP SCIENCES S A, 2011)
Context. Mass-loss occurring in red supergiants (RSGs) is a major contributor to the enrichment of the interstellar medium in dust and molecules. The physical mechanism of this mass loss is however relatively poorly known. ...