SN 1961V was an abnormal, supernova-like event that was a potential supernova impostor. The potential impostor nature of SN 1961V was first identified by Fritz Zwicky in 1964. SN 1961V occurred in galaxy NGC 1058, about 9.3 Mpc away (about 30 million light years). Unlike many supernovae, the progenitor star is tentatively known: an extremely large, very bright blue star, similar to Eta Carinae. Mass estimates of the precursor star were as high as 2000 times the mass of the sun, but these are likely to be extreme overestimates. If SN 1961V was not a supernova then it was most likely an extremely large outburst by a luminous blue variable star.
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| - SN 1961V (en)
- SN 1961V (pl)
- SN 1961V (sv)
- SN 1961V (zh)
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| - SN 1961V – niepotwierdzona supernowa typu II-pec? odkryta 11 grudnia 1961 roku w galaktyce NGC 1058. Jej maksymalna jasność wynosiła 12,50m. Prawdopodobnie tzw. fałszywa supernowa. (pl)
- SN 1961V var en supernova i Perseus som identifierades första gången av Fritz Zwicky 1964. Den exploderade i galaxen . (sv)
- SN 1961V是一顆異常的超新星事件，是類似超新星的假超新星。這顆潛在的冒名者在1964年首度被弗裡茨·茲威基檢出，SN 1961V出現在距離大約9.3 Mpc（3千萬光年）遠的星系NGC 1058。不像許多的超新星，它的祖恆星類似海山二，是顆非常大且亮的藍色恆星。估計其祖恆星的質量高達2,000太陽質量，但這很可能是被高估了。如果SN 1961V不是一顆超新星，它最有可能是高光度藍變星的一次極端的大爆發。 SN 1961V的爆炸，以2,000Km/s的速度將殘骸向外拋出，這比大多數超新星的速度慢得多。它的光變曲線，與逐步攀升至最大光度，相較於一般超新星也不相同。這個不尋常的光度曲線導致它被懷疑是其他的事件。如果這顆恆星還存在者，它將被標誌為假超新星，而不是一顆真正的超新星SN 1961V。哈伯太空望遠鏡和史匹哲太空望遠鏡的使用者，一直在試圖確定其祖恆星是否還存在。但是，此一事件的碎片遮蔽了這個區域，和阻礙了這些觀測的企圖。 俄亥俄州立大學的已經將此一事件和超新星SN 2005gl比對，建議類似於SN 2005gl的前超新星質量損失可以解釋擴張的低速度。Kochanek的小組經過分析，強烈的認為SN 1961V是一顆正的超新星。幾乎在同一時刻，另一個團隊檢測到一顆高度明亮的藍色恆星存在於這顆超新星的殘骸現場，然而他們不能排除這顆是爆炸後倖存的伴星。 (zh)
- SN 1961V was an abnormal, supernova-like event that was a potential supernova impostor. The potential impostor nature of SN 1961V was first identified by Fritz Zwicky in 1964. SN 1961V occurred in galaxy NGC 1058, about 9.3 Mpc away (about 30 million light years). Unlike many supernovae, the progenitor star is tentatively known: an extremely large, very bright blue star, similar to Eta Carinae. Mass estimates of the precursor star were as high as 2000 times the mass of the sun, but these are likely to be extreme overestimates. If SN 1961V was not a supernova then it was most likely an extremely large outburst by a luminous blue variable star. (en)
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| - SN 1961V was an abnormal, supernova-like event that was a potential supernova impostor. The potential impostor nature of SN 1961V was first identified by Fritz Zwicky in 1964. SN 1961V occurred in galaxy NGC 1058, about 9.3 Mpc away (about 30 million light years). Unlike many supernovae, the progenitor star is tentatively known: an extremely large, very bright blue star, similar to Eta Carinae. Mass estimates of the precursor star were as high as 2000 times the mass of the sun, but these are likely to be extreme overestimates. If SN 1961V was not a supernova then it was most likely an extremely large outburst by a luminous blue variable star. The remnant of SN 1961V's explosion is expanding at 2,000 km/s, which is much slower than the majority of supernovae. The profile of its light curve, with a gradual climb to maximum brightness, was unusual when compared to a supernova. This unusual light curve led to suspicion that it was some other event. If the star survived this would identify SN 1961V as an impostor supernova rather than a true supernova. Attempts to determine if the progenitor star is still present have been extensive and have included use of both the Hubble Space Telescope and the Spitzer Space Telescope. These attempts have been hampered by the cloud of debris from the event, which have left the area obscured. Christopher Kochanek at Ohio State University has compared the event to the confirmed supernova SN 2005gl and suggested that the low velocity of expansion can be explained by a pre-supernova mass loss event similar to that which was observed to occur in SN 2005gl. The analysis by Kochanek's group strongly suggests that SN 1961V was indeed a genuine supernova. Almost at the same moment, another team detected a highly luminous blue star, labeled Object 7, remaining at the site of the supernova, although they couldn't rule out this being a surviving companion of the exploded star. (en)
- SN 1961V – niepotwierdzona supernowa typu II-pec? odkryta 11 grudnia 1961 roku w galaktyce NGC 1058. Jej maksymalna jasność wynosiła 12,50m. Prawdopodobnie tzw. fałszywa supernowa. (pl)
- SN 1961V var en supernova i Perseus som identifierades första gången av Fritz Zwicky 1964. Den exploderade i galaxen . (sv)
- SN 1961V是一顆異常的超新星事件，是類似超新星的假超新星。這顆潛在的冒名者在1964年首度被弗裡茨·茲威基檢出，SN 1961V出現在距離大約9.3 Mpc（3千萬光年）遠的星系NGC 1058。不像許多的超新星，它的祖恆星類似海山二，是顆非常大且亮的藍色恆星。估計其祖恆星的質量高達2,000太陽質量，但這很可能是被高估了。如果SN 1961V不是一顆超新星，它最有可能是高光度藍變星的一次極端的大爆發。 SN 1961V的爆炸，以2,000Km/s的速度將殘骸向外拋出，這比大多數超新星的速度慢得多。它的光變曲線，與逐步攀升至最大光度，相較於一般超新星也不相同。這個不尋常的光度曲線導致它被懷疑是其他的事件。如果這顆恆星還存在者，它將被標誌為假超新星，而不是一顆真正的超新星SN 1961V。哈伯太空望遠鏡和史匹哲太空望遠鏡的使用者，一直在試圖確定其祖恆星是否還存在。但是，此一事件的碎片遮蔽了這個區域，和阻礙了這些觀測的企圖。 俄亥俄州立大學的已經將此一事件和超新星SN 2005gl比對，建議類似於SN 2005gl的前超新星質量損失可以解釋擴張的低速度。Kochanek的小組經過分析，強烈的認為SN 1961V是一顆正的超新星。幾乎在同一時刻，另一個團隊檢測到一顆高度明亮的藍色恆星存在於這顆超新星的殘骸現場，然而他們不能排除這顆是爆炸後倖存的伴星。 (zh)
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