| Revision as of 22:22, 19 February 2021 editPopePompus (talk | contribs)Autopatrolled, Extended confirmed users, New page reviewers11,945 edits Added a short description← Previous edit | Revision as of 08:43, 3 April 2021 edit undoDawnseeker2000 (talk | contribs)Autopatrolled, Extended confirmed users, File movers, New page reviewers, Pending changes reviewers, Rollbackers486,535 editsm date format audit, minor formattingTag: AWBNext edit → | ||
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| {{short description|Barred spiral galaxy in Leo}} | {{short description|Barred spiral galaxy in Leo}} | ||
| {{redirect|M95}} | {{redirect|M95}} | ||
| {{Use dmy dates|date=April |
{{Use dmy dates|date=April 2021}} | ||
| {{Infobox Galaxy | {{Infobox Galaxy | ||
| | name = ] 95 | | name = ] 95 | ||
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| | dec = {{DEC|+11|42|14}}<ref name="ned" /> | | dec = {{DEC|+11|42|14}}<ref name="ned" /> | ||
| | constellation name = ] | | constellation name = ] | ||
| | z = 778 ± 4 |
| z = 778 ± 4 km/]<ref name="ned" /> | ||
| | dist_ly =32.6 ± 1.4 ] (10.0 ± 0.4 ])<ref name="jensenetal2003"> | | dist_ly =32.6 ± 1.4 ] (10.0 ± 0.4 ])<ref name="jensenetal2003"> | ||
| {{cite journal | {{cite journal | ||
| Line 123: | Line 123: | ||
| ==Gallery== | ==Gallery== | ||
| <gallery> | <gallery> | ||
| File:Caught in the act Messier 95.tif|Messier 95 shows the process of redistributing energy into the interstellar medium within star-forming galaxies.<ref>{{cite web |title=Caught in the act |url=https://www.eso.org/public/images/potw1935a/ |website= |
File:Caught in the act Messier 95.tif|Messier 95 shows the process of redistributing energy into the interstellar medium within star-forming galaxies.<ref>{{cite web |title=Caught in the act |url=https://www.eso.org/public/images/potw1935a/ |website=eso.org |access-date=2 September 2019 |language=en}}</ref> | ||
| File:M95 - HST - Potw1841a.tiff|] image of Messier 95.<ref>{{cite web |title=Rings upon rings |url=https://www.spacetelescope.org/images/potw1841a/ |website= |
File:M95 - HST - Potw1841a.tiff|] image of Messier 95.<ref>{{cite web |title=Rings upon rings |url=https://www.spacetelescope.org/images/potw1841a/ |website=spacetelescope.org |access-date=8 October 2018}}</ref> | ||
| </gallery> | </gallery> | ||
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| {{reflist|colwidth=30em}} | {{reflist|colwidth=30em}} | ||
| {{notelist}} | {{notelist}} | ||
| ==External links== | ==External links== | ||
| {{commons category}} | |||
| {{commonscat}} | |||
| * {{WikiSky}} | * {{WikiSky}} | ||
| * | * | ||
Revision as of 08:43, 3 April 2021
Barred spiral galaxy in Leo "M95" redirects here. For other uses, see M95 (disambiguation).
| Messier 95 | |
|---|---|
 M95. Credit: NASA | |
| Observation data (J2000 epoch) | |
| Constellation | Leo |
| Right ascension | 10 43 57.7 |
| Declination | +11° 42′ 14″ |
| Redshift | 778 ± 4 km/s |
| Distance | 32.6 ± 1.4 Mly (10.0 ± 0.4 Mpc) |
| Apparent magnitude (V) | 11.4 |
| Characteristics | |
| Type | SB(r)b |
| Apparent size (V) | 3′.1 × 2′.9 |
| Other designations | |
| NGC 3351, UGC 5850, PGC 32007 | |
Messier 95, also known as M95 or NGC 3351, is a barred spiral galaxy about 33 million light-years away in the zodiac constellation Leo. It was discovered by Pierre Méchain in 1781, and catalogued by compatriot Charles Messier four days later. In 2012 its most recent supernova was discovered.
The galaxy has a morphological classification of SB(r)b, with the SBb notation indicating it is a barred spiral with arms that are intermediate on the scale from tightly to loosely wound, and an "(r)" meaning an inner ring surrounds the bar. The latter is a ring-shaped, circumnuclear star-forming region with a diameter of approximately 2,000 light-years (610 pc). The spiral structure extends outward from the ring.
Its ring structure is about 3.5×10 M☉ (solar masses) in molecular gas and yields a star formation rate of 0.38 M☉ yr. The star formation is occurring in at least five regions with diameters between 100 and 150 pc that are composed of several star clusters ranging in size from 1.7 to 4.9 pc. These individual clusters contain (1.8–8.7)×10 M☉ of stars, and may be on the path to forming globular clusters.
A Type II supernova, designated as SN 2012aw, was discovered within in 2012. The light curve of this displayed great flattening after 27 days, thus classifying it as a Type II-P, or "plateau", core-collapse supernova. The disappearance of the progenitor star was later confirmed from near-infrared imaging of the region. The brightness from the presumed red supergiant progenitor allowed its mass to be estimated as 12.5±1.5 M☉.
M95 is one of several galaxies within the M96 Group, a group of galaxies in the constellation Leo, the other Messier objects of which are M96 and M105.
Gallery
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Messier 95 shows the process of redistributing energy into the interstellar medium within star-forming galaxies.
-
Hubble Space Telescope image of Messier 95.
References
- ^ "NASA/IPAC Extragalactic Database". Results for NGC 3351. Retrieved 3 October 2007.
- Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; et al. (2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. arXiv:astro-ph/0210129. Bibcode:2003ApJ...583..712J. doi:10.1086/345430. S2CID 551714.
- ^ Buta, Ronald J.; et al. (2007), Atlas of Galaxies, Cambridge University Press, pp. 1−25, ISBN 978-0521820486.
- Colina, L.; Garcia Vargas, M. L.; Mas-Hesse, J. M.; Alberdi, A.; Krabbe, A. (1997). "Nuclear Star-forming Structures and the Starburst–Active Galactic Nucleus Connection in Barred Spirals NGC 3351 and NGC 4303". Astrophysical Journal Letters. 484 (1): L41 – L45. Bibcode:1997ApJ...484L..41C. doi:10.1086/310766.
- Hägele, Guillermo F.; et al. (June 2007), "Kinematics of gas and stars in the circumnuclear star-forming ring of NGC3351", Monthly Notices of the Royal Astronomical Society, 378 (1): 163−178, arXiv:astro-ph/0703140, Bibcode:2007MNRAS.378..163H, doi:10.1111/j.1365-2966.2007.11751.x, S2CID 17402226
- "Deep Sky Videos". Retrieved 19 March 2012.
- "Supernova 2012aw: the pictures!". Retrieved 19 March 2012.
- "List of Recent Supernovae". Retrieved 8 April 2012.
- Bayless, Amanda J.; et al. (February 2013), "The Long-lived UV "Plateau" of SN 2012aw", The Astrophysical Journal Letters, 764 (1): 6, arXiv:1210.5496, Bibcode:2013ApJ...764L..13B, doi:10.1088/2041-8205/764/1/L13, S2CID 119291438, L13.
- Fraser, Morgan (February 2016), "The disappearance of the progenitor of SN 2012aw in late-time imaging", Monthly Notices of the Royal Astronomical Society: Letters, 456 (1): L16−L19, arXiv:1507.06579, Bibcode:2016MNRAS.456L..16F, doi:10.1093/mnrasl/slv168, S2CID 118145431.
{{citation}}: CS1 maint: unflagged free DOI (link) - Tully, R. B. (1988). Nearby Galaxies Catalog. Cambridge University Press. ISBN 978-0-521-35299-4.
- Fouque, P.; Gourgoulhon, E.; Chamaraux, P.; Paturel, G. (1992). "Groups of galaxies within 80 Mpc. II – The catalogue of groups and group members". Astronomy and Astrophysics Supplement. 93: 211–233. Bibcode:1992A&AS...93..211F.
- Garcia, A. (1993). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement. 100: 47–90. Bibcode:1993A&AS..100...47G.
- Giuricin, G.; et al. (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. S2CID 9618325.
- "Caught in the act". eso.org. Retrieved 2 September 2019.
- "Rings upon rings". spacetelescope.org. Retrieved 8 October 2018.
- meaning per year
- 1.8 to 8.7 million solar masses
- On 16 March
External links
- Messier 95 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS: Spiral Galaxy M95
- NASA Astronomy Picture of the Day: Barred Spiral Galaxy M95 (14 March 2007)
- Merrifield, Michael. "Supernova in M95 – SN 2012aw and its progenitor". Deep Sky Videos. Brady Haran.
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| See also | ||
