Astronomy:SN 1895B: Difference between revisions
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{{Short description|Supernova in the constellation Centaurus}} | {{Short description|Supernova in the constellation Centaurus}} | ||
{{Distinguish|text = the star [[Astronomy:HD 119921|HD 119921]] with a Bayer designation of "z Centauri"}} | |||
{{Infobox astronomical event | {{Infobox astronomical event | ||
| name = SN 1895B | | name = SN 1895B | ||
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'''SN 1895B''' was a supernova event in the irregular dwarf galaxy [[Astronomy:NGC 5253|NGC 5253]], positioned {{val|16|ul=arcsecond}} east and {{val|23|u=arcsecond}} north of the galactic center.<ref name=Barbon_et_al_2008/> It is among the closest known extragalactic supernova events.<ref name=Cendes_et_al_2020/> The supernova was discovered by Williamina Fleming on December 12, 1895 after noticing an unusual spectrum on a [[Physics:Photographic plate|photographic plate]] taken July 18, 1895, and was initially given the [[Astronomy:Variable star designation|variable star designation]] Z Centauri.<ref name=Schaefer1995/><ref name="iauc"/> The [[Astronomy:Light curve|light curve]] is consistent with an event that began ~15 days before the discovery plate was taken,<ref name=Cendes_et_al_2020/> and this indicates the supernova reached a peak visual magnitude of up to 8.49{{±|0.03}}.<ref name=Schaefer1995/> | '''SN 1895B''' was a supernova event in the irregular dwarf galaxy [[Astronomy:NGC 5253|NGC 5253]], positioned {{val|16|ul=arcsecond}} east and {{val|23|u=arcsecond}} north of the galactic center.<ref name=Barbon_et_al_2008/> It is among the closest known extragalactic supernova events.<ref name=Cendes_et_al_2020/> The supernova was discovered by Williamina Fleming on December 12, 1895 after noticing an unusual spectrum on a [[Physics:Photographic plate|photographic plate]] taken July 18, 1895, and was initially given the [[Astronomy:Variable star designation|variable star designation]] Z Centauri.<ref name=Schaefer1995/><ref name="iauc"/> The [[Astronomy:Light curve|light curve]] is consistent with an event that began ~15 days before the discovery plate was taken,<ref name=Cendes_et_al_2020/> and this indicates the supernova reached a peak visual magnitude of up to 8.49{{±|0.03}}.<ref name=Schaefer1995/> | ||
[[File:ZCenLightCurve.png|thumb|left|A light curve for Z Centauri, adapted from Leibundgut ''et al.'' (1991)<ref name="Leibundgut"/>]] | [[File:ZCenLightCurve.png|thumb|left|A [[Astronomy:Light curve|light curve]] for Z Centauri, adapted from Leibundgut ''et al.'' (1991)<ref name="Leibundgut"/>]] | ||
After the light faded, the [[Astronomy:Supernova remnant|remnant]] has remained undetected at any wavelength,<ref name=Cendes_et_al_2020/> including [[Astronomy:X-ray astronomy|X-ray]] and [[Astronomy:Radio astronomy|radio]].<ref name=Schaefer1995/> This suggests the expanding remnant is meeting a low density of surrounding interstellar material, which would be consistent with certain double [[Astronomy:White dwarf|white dwarf]] merger scenarios. The remnant is expected to reach peak radio emission around the year 2195, and it may become detectable at that time.<ref name=Cendes_et_al_2020/> | After the light faded, the [[Astronomy:Supernova remnant|remnant]] has remained undetected at any wavelength,<ref name=Cendes_et_al_2020/> including [[Astronomy:X-ray astronomy|X-ray]] and [[Astronomy:Radio astronomy|radio]].<ref name=Schaefer1995/> This suggests the expanding remnant is meeting a low density of surrounding interstellar material, which would be consistent with certain double [[Astronomy:White dwarf|white dwarf]] merger scenarios. The remnant is expected to reach peak radio emission around the year 2195, and it may become detectable at that time.<ref name=Cendes_et_al_2020/> | ||
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| last1=Barbon | first1=R. | last2=Buondi | first2=V. | last3=Cappellaro | first3=E. | last4=Turatto | first4=M. | | last1=Barbon | first1=R. | last2=Buondi | first2=V. | last3=Cappellaro | first3=E. | last4=Turatto | first4=M. | ||
| work=CDS/ADC Collection of Electronic Catalogues | date=2008 | | work=CDS/ADC Collection of Electronic Catalogues | date=2008 | ||
| bibcode=2008yCat....1.2024B }}</ref> | | volume=1 | bibcode=2008yCat....1.2024B }}</ref> | ||
<ref name="Leibundgut">{{cite journal |last1=Leibundgut |first1=B. |last2=Tammann |first2=G. A. |last3=Cadonau |first3=R. |last4=Cerrito |first4=D. |title=Supernova studies. VII. an atlas of light curves of supernovae type I. |journal=Astronomy & Astrophysics Supplement Series |date=September 1991 |volume=89 |pages=537–589 |bibcode=1991A&AS...89..537L |url=https://ui.adsabs.harvard.edu/abs/1991A&AS...89..537L |access-date=5 December 2021}}</ref> | <ref name="Leibundgut">{{cite journal |last1=Leibundgut |first1=B. |last2=Tammann |first2=G. A. |last3=Cadonau |first3=R. |last4=Cerrito |first4=D. |title=Supernova studies. VII. an atlas of light curves of supernovae type I. |journal=Astronomy & Astrophysics Supplement Series |date=September 1991 |volume=89 |pages=537–589 |bibcode=1991A&AS...89..537L |url=https://ui.adsabs.harvard.edu/abs/1991A&AS...89..537L |access-date=5 December 2021}}</ref> | ||
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== External links == | == External links == | ||
* [https://sne.space/sne/SN1895B/ Light curve] {{Webarchive|url=https://web.archive.org/web/20171023011533/https://sne.space/sne/SN1895B/ |date=2017-10-23 }} on the [https://sne.space Open Supernova Catalog] | * [https://sne.space/sne/SN1895B/ Light curve] {{Webarchive|url=https://web.archive.org/web/20171023011533/https://sne.space/sne/SN1895B/ |date=2017-10-23 }} on the [https://sne.space Open Supernova Catalog] {{Webarchive|url=https://web.archive.org/web/20160303230459/https://sne.space/ |date=2016-03-03 }} | ||
{{stars of Centaurus}} | {{stars of Centaurus}} | ||
Latest revision as of 16:16, 22 July 2025
Short description: Supernova in the constellation Centaurus
| Other designations | Z Cen, CD−31 10536, HD 118843, NOVA Cen 1895[1] |
|---|---|
| Spectral class | Type Ia[2] |
| Date | December 12, 1895[3] |
| Constellation | Centaurus |
| Right ascension | 13h 39m 57.3s[2] |
| Declination | −31° 38′ 06″[2] |
| Epoch | J2000.0 |
| Distance | 10.3 Mly (3.15 Mpc)[4] |
| Host | NGC 5253[2] |
| Peak apparent magnitude | +8.49±0.03[5] |
| Preceded by | SN 1885A |
| Followed by | SN 1937C |
SN 1895B was a supernova event in the irregular dwarf galaxy NGC 5253, positioned 16″ east and 23″ north of the galactic center.[2] It is among the closest known extragalactic supernova events.[5] The supernova was discovered by Williamina Fleming on December 12, 1895 after noticing an unusual spectrum on a photographic plate taken July 18, 1895, and was initially given the variable star designation Z Centauri.[3][6] The light curve is consistent with an event that began ~15 days before the discovery plate was taken,[5] and this indicates the supernova reached a peak visual magnitude of up to 8.49±0.03.[3]
After the light faded, the remnant has remained undetected at any wavelength,[5] including X-ray and radio.[3] This suggests the expanding remnant is meeting a low density of surrounding interstellar material, which would be consistent with certain double white dwarf merger scenarios. The remnant is expected to reach peak radio emission around the year 2195, and it may become detectable at that time.[5]
References
- ↑ "SN 1895B". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=SN+1895B.
- ↑ 2.0 2.1 2.2 2.3 2.4 Barbon, R.; Buondi, V.; Cappellaro, E.; Turatto, M. (2008). Asiago Supernova Catalogue. 1. Bibcode: 2008yCat....1.2024B.
- ↑ 3.0 3.1 3.2 3.3 Schaefer, Bradley E. (July 1995). "The Peak Brightness of SN 1895B in NGC 5253 and the Hubble Constant". Astrophysical Journal Letters 447: L13. doi:10.1086/309549. Bibcode: 1995ApJ...447L..13S.
- ↑ Freedman, Wendy L. et al. (May 2001). "Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant". The Astrophysical Journal 553 (1): 47–72. doi:10.1086/320638. Bibcode: 2001ApJ...553...47F.
- ↑ 5.0 5.1 5.2 5.3 5.4 Cendes, Y. et al. (May 2020). "Thirty Years of Radio Observations of Type Ia SN 1972E and SN 1895B: Constraints on Circumstellar Shells". The Astrophysical Journal 894 (1): 16. doi:10.3847/1538-4357/ab6b2a. 39. Bibcode: 2020ApJ...894...39C.
- ↑ "List of Supernovae". International Astronomical Union. http://www.cbat.eps.harvard.edu/lists/Supernovae.html.
- ↑ Leibundgut, B.; Tammann, G. A.; Cadonau, R.; Cerrito, D. (September 1991). "Supernova studies. VII. an atlas of light curves of supernovae type I.". Astronomy & Astrophysics Supplement Series 89: 537–589. Bibcode: 1991A&AS...89..537L. https://ui.adsabs.harvard.edu/abs/1991A&AS...89..537L. Retrieved 5 December 2021.
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