16
16
0
Good Saturday Afternoon my Brothers and Sisters!
The vastness of Space is almost beyond concept from the average person, yet Space is what is seemingly the final frontier as was described by Gene Roddenberry in his "Star Trek" Series.
Today I am sharing a concept of a Hypernova, which by most accounts is descried as follows:
"A hypernova is a type of stellar explosion which ejects material with an unusually high kinetic energy, an order of magnitude higher than most supernovae. They usually appear similar to a type Ic supernova, but with unusually broad spectral lines indicating an extremely high expansion velocity. Hypernovae are one of the mechanisms for producing long gamma ray bursts (GRBs), which range from 2 seconds to over a minute in duration.
Hypernovae are now widely accepted to be supernovae with ejecta having a kinetic energy larger than about 1052 erg, an order of magnitude higher than a typical core collapse supernova. The ejected nickel masses are large and the ejection velocity up to 99% of the speed of light. These are typically of type Ic, and some are associated with long-duration gamma-ray bursts. The electromagnetic energy released by these events varies from comparable to other type Ic supernova, to some of the most luminous supernovae known such as SN 1999as.
The archetypal hypernova SN 1998bw was associated with GRB 980425. Its spectrum showed no hydrogen and no clear helium features, but strong silicon lines identified it as a type Ic supernova. The main absorption lines were extremely broadened and the light curve showed a very rapid brightening phase, reaching the brightness of a type Ia supernova at day 16. The total ejected mass was about 10 M☉ and the mass of nickel ejected about 0.4 M☉. All supernovae associated with GRBs have shown the high-energy ejecta that characterises them as hypernovae.
Unusually bright radio supernovae have been observed as counterparts to hypernovae, and have been termed radio hypernovae." For more information go to Wikipedia.
The vastness of Space is almost beyond concept from the average person, yet Space is what is seemingly the final frontier as was described by Gene Roddenberry in his "Star Trek" Series.
Today I am sharing a concept of a Hypernova, which by most accounts is descried as follows:
"A hypernova is a type of stellar explosion which ejects material with an unusually high kinetic energy, an order of magnitude higher than most supernovae. They usually appear similar to a type Ic supernova, but with unusually broad spectral lines indicating an extremely high expansion velocity. Hypernovae are one of the mechanisms for producing long gamma ray bursts (GRBs), which range from 2 seconds to over a minute in duration.
Hypernovae are now widely accepted to be supernovae with ejecta having a kinetic energy larger than about 1052 erg, an order of magnitude higher than a typical core collapse supernova. The ejected nickel masses are large and the ejection velocity up to 99% of the speed of light. These are typically of type Ic, and some are associated with long-duration gamma-ray bursts. The electromagnetic energy released by these events varies from comparable to other type Ic supernova, to some of the most luminous supernovae known such as SN 1999as.
The archetypal hypernova SN 1998bw was associated with GRB 980425. Its spectrum showed no hydrogen and no clear helium features, but strong silicon lines identified it as a type Ic supernova. The main absorption lines were extremely broadened and the light curve showed a very rapid brightening phase, reaching the brightness of a type Ia supernova at day 16. The total ejected mass was about 10 M☉ and the mass of nickel ejected about 0.4 M☉. All supernovae associated with GRBs have shown the high-energy ejecta that characterises them as hypernovae.
Unusually bright radio supernovae have been observed as counterparts to hypernovae, and have been termed radio hypernovae." For more information go to Wikipedia.
Space
Astronomy
Science
Physics
NASA
Edited 5 y ago
Posted 5 y ago
Responses: 7
4
4
0
4
4
0
"A hypernova is a type of stellar explosion which ejects material with an unusually high kinetic energy, an order of magnitude higher than most supernovae."
TSgt David L. SFC Joe S. Davis Jr., MSM, DSL SP5 Jeannie Carle Maj Rev. Fr. Samuel WATERS - Traditional RC Priest Sgt Albert Castro LTC Stephen C. SSG Donald H "Don" Bates SPC Margaret Higgins SSG Jose M. Hernandezsanchez LTJG Josh Thaxton SGT David A. 'Cowboy' Groth SGT Kevin Foley Lt Col Scott Shuttleworth cmsgt-rickey-denicke-sr MSgt Stephen Council CWO3 Dave Alcantara Sgt John H. SP5 Mark Kuzinski SPC Douglas Bolton SPC Mark Huddleston
TSgt David L. SFC Joe S. Davis Jr., MSM, DSL SP5 Jeannie Carle Maj Rev. Fr. Samuel WATERS - Traditional RC Priest Sgt Albert Castro LTC Stephen C. SSG Donald H "Don" Bates SPC Margaret Higgins SSG Jose M. Hernandezsanchez LTJG Josh Thaxton SGT David A. 'Cowboy' Groth SGT Kevin Foley Lt Col Scott Shuttleworth cmsgt-rickey-denicke-sr MSgt Stephen Council CWO3 Dave Alcantara Sgt John H. SP5 Mark Kuzinski SPC Douglas Bolton SPC Mark Huddleston
(4)
(0)
Sgt (Join to see)
MAJ (Join to see) I don't know whether you meant that as a joke or your serious ... but if the latter, I take umbrage of your response as I posted a serious scientific Space occurrence and there is no need to add pornographic innuendo...
(0)
(0)
4
4
0
Read This Next
Continue with Facebook 
Continue with Google