Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Titanium hidden in dust


Müller,  E.
Stellar Astrophysics, MPI for Astrophysics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Iyudin, A. F., Müller, E., & Obergaulinger, M. (2019). Titanium hidden in dust. Monthly Notices of the Royal Astronomical Society, 485(3), 3288-3295. doi:10.1093/mnras/stz419.

Cite as: https://hdl.handle.net/21.11116/0000-0004-71E0-F
Cassiopeia A, one of the most intriguing Galactic supernova remnants, has been a target of many observational efforts including most recent observations by Atacama Large Millimeter/submillimeter Array (ALMA), Hubble, Herschel, Spitzer, NuSTAR, INTEGRAL, and other observatories. We use recent gamma-ray lines observations of the radioactive products of Cas A supernova explosive nucleosynthesis and spectral energy densities derived for Cas A at infrared wavelengths to speculate about the possibility of radioactive 44Ti  being locked into large dust grains. This suggestion is also supported by the possible observation of a pre-supernova outburst about 80 yr before the actual Cas A supernova explosion in 1671 ad by Italian astronomer G. D. Cassini. The plausibility of such a scenario is discussed also with reference to recent supernovae, and to the contribution of core-collapse supernovae to the overall dust production in the Galaxy.