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... Science Frontiers ONLINE No. 52: Jul-Aug 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Supernova Confusion And Mysteries Just a few weeks ago, IN SF#51, we reported some of the anomalies surrounding supernova 1987A, the first nearby super nova since 1604 AD. 1987A's nearness has given astronomers the opportunity to identify just which star exploded. (Other supernovas have been much too far away.) The prime suspect was the star Sanduleak -69 202. But then it was claimed that old -69 202 was still alive and well. This presented a quandry because no other star in the area was large enough to go supernova. But now it seems there was a mistake, and it was Sanduleak -69 ... Science Frontiers ONLINE No. 52: Jul-Aug 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Supernova Confusion And Mysteries Just a few weeks ago, IN SF#51, we reported some of the anomalies surrounding supernova 1987A, the first nearby super nova since 1604 AD. 1987A's nearness has given astronomers the opportunity to identify just which star exploded. (Other supernovas have been much too far away.) The prime suspect was the star Sanduleak -69 202. But then it was claimed that old -69 202 was still alive and well. This presented a quandry because no other star in the area was large enough to go supernova. But now it seems there was a mistake, and it was Sanduleak -69 ...
Terms matched: 2 - Score: 458 - 15 May 2017 - URL: /sf052/sf052a06.htm
... Science Frontiers ONLINE No. 51: May-Jun 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Supernova Problems Everyone has been talking and writing about the new supernova, 1987A, so we might as well, too. In fact, we really must, because 1987A is more than usually anomalous. The newspapers have oohed and aahed about this rare opportunity scientists have to study a nearby supernova. However, instead of getting closer to a final understanding of supernovas, 1987A seems to be confounding the theorists. No one can determine which star, if any, blew up. The 12th magnitude star Sanduleak -69 202 was first fingered, for it is located in the proper spot. But it is still there, apparently unchanged, as ... Science Frontiers ONLINE No. 51: May-Jun 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Supernova Problems Everyone has been talking and writing about the new supernova, 1987A, so we might as well, too. In fact, we really must, because 1987A is more than usually anomalous. The newspapers have oohed and aahed about this rare opportunity scientists have to study a nearby supernova. However, instead of getting closer to a final understanding of supernovas, 1987A seems to be confounding the theorists. No one can determine which star, if any, blew up. The 12th magnitude star Sanduleak -69 202 was first fingered, for it is located in the proper spot. But it is still there, apparently unchanged, as ...
Terms matched: 2 - Score: 452 - 15 May 2017 - URL: /sf051/sf051a03.htm
... with several puzzles in addition to the mystery object itself: "Other puzzles include the largescale asymmetries observed in the heavy element ejecta (Fe-group line emission), the supernova envelope (optical polarization), and the circumstellar medium ([ O III] ring), which are in addition to the complex structures resulting from hydrodynamic instabilities." (Chevalier, Roger A.; "Supernova 1987A at Five Years of Age," Nature, 355:691, 1992.) From Science Frontiers #81, MAY-JUN 1992 . 1992-2000 William R. Corliss ...
Terms matched: 2 - Score: 284 - 15 May 2017 - URL: /sf081/sf081a07.htm
... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "AN UNPRECEDENTED AND BIZARRE OBJECT"So said C. Burrows, codiscoverer of this new cosmic conundrum. The instigator of all the astronomical head scratching is our old friend Supernova 1987A, the subject of several past SF items. This time, the anomalies are associated with three bright rings now gracing 1987A's environs. The thin, dense, elliptical inner ring, the first to be noted, has always been a puzzle. Its diameter suggests that it was probably created about 30,000 years before 1987A blew up. But what is it? Its existence is hard to explain, as N. Panagia has confirmed: "The ... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects "AN UNPRECEDENTED AND BIZARRE OBJECT"So said C. Burrows, codiscoverer of this new cosmic conundrum. The instigator of all the astronomical head scratching is our old friend Supernova 1987A, the subject of several past SF items. This time, the anomalies are associated with three bright rings now gracing 1987A's environs. The thin, dense, elliptical inner ring, the first to be noted, has always been a puzzle. Its diameter suggests that it was probably created about 30,000 years before 1987A blew up. But what is it? Its existence is hard to explain, as N. Panagia has confirmed: "The ...
Terms matched: 2 - Score: 276 - 15 May 2017 - URL: /sf095/sf095a04.htm
... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Comets, asteroids, or neither?Like supernova 1987A, also mentioned in this issue, comet P/Shoemaker-Levi-9 is generating headlines in the scientific and popular media. Everyone expected that the impact of this comet on Jupiter would provide us with some very interesting phenomena, but most thought that the debris kicked up by the impacts would reveal something new about Jupiter -- not about comets, since everyone knows what they are! Instead, the long-held theory that comets are simply dirty iceballs is now questioned. Shoemaker-Levi-9 was originally classified as a comet because: (1 ) Its fragments all appeared ... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Comets, asteroids, or neither?Like supernova 1987A, also mentioned in this issue, comet P/Shoemaker-Levi-9 is generating headlines in the scientific and popular media. Everyone expected that the impact of this comet on Jupiter would provide us with some very interesting phenomena, but most thought that the debris kicked up by the impacts would reveal something new about Jupiter -- not about comets, since everyone knows what they are! Instead, the long-held theory that comets are simply dirty iceballs is now questioned. Shoemaker-Levi-9 was originally classified as a comet because: (1 ) Its fragments all appeared ...
Terms matched: 2 - Score: 268 - 15 May 2017 - URL: /sf095/sf095a05.htm
