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'''Messier 95''' (also known as '''M95''' or '''NGC 3351''') is a ] about 38 million ]s away in the ] ]. It was discovered by ] in 1781, and catalogued by ] four days later. On 16 March 2012, a ] was discovered in M95. '''Messier 95''', also known as '''M95''' or '''NGC 3351''', is a ] located about 38 million ]s away in the ] ] ]. It was discovered by ] in 1781, and catalogued by fellow French astronomer ] four days later. On 16 March 2012, a ] was discovered in M95.


The galaxy has a morphological classification of SB(r)b,<ref name="ned" /> 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.<ref name=Buta2007>{{citation
==Nucleus==
⚫ | title=Atlas of Galaxies | postscript=.
⚫ The center of the galaxy contains a ring-shaped circumnuclear star-forming region with a diameter of approximately 2000 ] (600 ]).<ref>
| display-authors=1 | first1=Ronald J. | last1=Buta
{{cite journal
| first2=Harold G. | last2=Corwin | first3=Stephen C. | last3=Odewahn
| author=L. Colina | author2=M. L. Garcia Vargas | author3=J. M. Mas-Hesse | author4=A. Alberdi | author5=A. Krabbe
⚫ | publisher=Cambridge University Press
| displayauthors=4
| year=2007 | isbn=0521820480 | pages=1−25
| date=1997
| url=https://books.google.com/books?id=g-P7dCbB5MEC&pg=PA1
⚫ }}</ref> The latter is a ring-shaped, circumnuclear ] with a diameter of approximately {{Convert|2000|ly|pc}}.<ref>{{cite journal
| display-authors=5 | first1=L. | last1=Colina
| first2=M. L. | last2=Garcia Vargas | first3=J. M. | last3=Mas-Hesse
| first4=A. | last4=Alberdi | first5=A. | last5=Krabbe | date=1997
| title=Nuclear Star-forming Structures and the Starburst–Active Galactic Nucleus Connection in Barred Spirals NGC 3351 and NGC 4303 | title=Nuclear Star-forming Structures and the Starburst–Active Galactic Nucleus Connection in Barred Spirals NGC 3351 and NGC 4303
| journal=] | journal=] | volume=484 | issue=1
⚫ | pages=L41–L45 | bibcode=1997ApJ...484L..41C | doi=10.1086/310766
| volume=484
}}</ref> The spiral structure extends outward from the ring.<ref name=Buta2007/>
| issue=1 | pages=L41–L45
⚫ | bibcode=1997ApJ...484L..41C
| doi=10.1086/310766
⚫ }}</ref>


==Galaxy group information== ==Galaxy group information==
M95 is one of several galaxies within the ], a ] in the ] ]. The group also includes the ] ] and ].<ref name="nbg"> M95 is one of several galaxies within the ], a ] in the ] ]. The group also includes the ] ] and ].<ref name="nbg">{{cite book
⚫ | first1=R. B. | last1=Tully
{{cite book
| date=1988 | title=Nearby Galaxies Catalog
⚫ | author=R. B. Tully
| publisher=]
| date=1988
⚫ | isbn=0-521-35299-1
⚫ | title=Nearby Galaxies Catalog
⚫ }}</ref><ref name="fouqueetal1992">{{cite journal
⚫ | publisher=]
| first1=P. | last1=Fouque | first2=E. | last2=Gourgoulhon
⚫ | isbn=0-521-35299-1
| first3=P. | last3=Chamaraux | first4=G. | last4=Paturel
⚫ }}</ref><ref name="fouqueetal1992">
⚫ | title=Groups of galaxies within 80 Mpc. II – The catalogue of groups and group members
{{cite journal
⚫ | journal=]
| author=P. Fouque | author2=E. Gourgoulhon | author3=P. Chamaraux | author4=G. Paturel
| date=1992 | date=1992 | volume=93 | pages=211–233
⚫ | bibcode=1992A&AS...93..211F
⚫ | title=Groups of galaxies within 80 Mpc. II – The catalogue of groups and group members
⚫ }}</ref><ref name="garcia1993">{{cite journal
⚫ | journal=]
| volume=93 | pages=211–233 | first1=A. | last1=Garcia | date=1993
⚫ | bibcode=1992A&AS...93..211F
⚫ }}</ref><ref name="garcia1993">
{{cite journal
| author=A. Garcia
| date=1993
| title=General study of group membership. II – Determination of nearby groups | title=General study of group membership. II – Determination of nearby groups
| journal=] | journal=]
| volume=100 | pages=47–90 | volume=100 | pages=47–90
| bibcode=1993A&AS..100...47G | bibcode=1993A&AS..100...47G
}}</ref><ref name="giuricinetal2002"> }}</ref><ref name="giuricinetal2002">{{cite journal
| first1=G. | last1=Giuricin | first2=C. | last2=Marinoni
{{cite journal
| author=G. Giuricin | author2=C. Marinoni | author3=L. Ceriani | author4=A. Pisani | first3=L. | last3=Ceriani | first4=A. | last4=Pisani
⚫ | title=Nearby Optical Galaxies: Selection of the Sample and Identification of Groups
| date=2000
⚫ | journal=]
⚫ | title=Nearby Optical Galaxies: Selection of the Sample and Identification of Groups
⚫ | date=2000 | volume=543 | issue=1 | pages=178–194
⚫ | journal=]
⚫ | bibcode=2000ApJ...543..178G | doi=10.1086/317070
| volume=543
⚫ | arxiv=astro-ph/0001140 | display-authors=1
⚫ | issue=1 | pages=178–194
⚫ | bibcode=2000ApJ...543..178G
| doi=10.1086/317070
⚫ | arxiv = astro-ph/0001140
}}</ref> }}</ref>


==Supernova== ==Supernova==
A ], designated as ], was discovered in M95 on 16 March 2012.<ref name=DeepSkyVideos>{{cite web|title=Deep Sky Videos|url=https://www.youtube.com/user/DeepSkyVideos?feature=watch|accessdate=19 March 2012}}</ref><ref name=BadAstronomyM95>{{cite web|title=Supernova 2012aw: the pictures!|url=http://blogs.discovermagazine.com/badastronomy/2012/03/20/supernova-2012aw-the-pictures/|accessdate=19 March 2012}}</ref><ref name="IAU Central Bureau for Astronomical Telegrams">{{cite web|title=List of Recent Supernovae|url=http://www.cbat.eps.harvard.edu/lists/RecentSupernovae.html|accessdate=8 April 2012}}</ref> A ], designated as ], was discovered in M95 on 16 March 2012.<ref name=DeepSkyVideos>{{cite web
| title=Deep Sky Videos
| url=https://www.youtube.com/user/DeepSkyVideos?feature=watch
| accessdate=19 March 2012
}}</ref><ref name=BadAstronomyM95>{{cite web
| title=Supernova 2012aw: the pictures!
| url=http://blogs.discovermagazine.com/badastronomy/2012/03/20/supernova-2012aw-the-pictures/
| accessdate=19 March 2012
}}</ref><ref name="IAU Central Bureau for Astronomical Telegrams">{{cite web
| title=List of Recent Supernovae
| url=http://www.cbat.eps.harvard.edu/lists/RecentSupernovae.html
| accessdate=8 April 2012
⚫ }}</ref>


==References== ==References==

Revision as of 16:39, 5 January 2018

"M95" redirects here. For other uses, see M95 (disambiguation).

Messier 95
M95. Credit: NASA
Observation data (J2000 epoch)
ConstellationLeo
Right ascension10 43 57.7
Declination+11° 42′ 14″
Redshift778 ± 4 km/s
Distance32.6 ± 1.4 Mly (10.0 ± 0.4 Mpc)
Apparent magnitude (V)11.4
Characteristics
TypeSB(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 located about 38 million light-years away in the zodiac constellation Leo. It was discovered by Pierre Méchain in 1781, and catalogued by fellow French astronomer Charles Messier four days later. On 16 March 2012, a supernova was discovered in M95.

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.

Galaxy group information

M95 is one of several galaxies within the M96 Group, a group of galaxies in the constellation Leo. The group also includes the Messier objects M96 and M105.

Supernova

A Type II supernova, designated as SN 2012aw, was discovered in M95 on 16 March 2012.

References

  1. ^ "NASA/IPAC Extragalactic Database". Results for NGC 3351. Retrieved 3 October 2007.
  2. Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; Liu, Michael C.; Rieke, Marcia J.; Ajhar, Edward A.; Blakeslee, John P. (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. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)
  3. ^ Buta, Ronald J.; et al. (2007), Atlas of Galaxies, Cambridge University Press, pp. 1−25, ISBN 0521820480.
  4. 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. {{cite journal}}: Invalid |display-authors=5 (help)
  5. Tully, R. B. (1988). Nearby Galaxies Catalog. Cambridge University Press. ISBN 0-521-35299-1.
  6. 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.
  7. 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.
  8. 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.
  9. "Deep Sky Videos". Retrieved 19 March 2012.
  10. "Supernova 2012aw: the pictures!". Retrieved 19 March 2012.
  11. "List of Recent Supernovae". Retrieved 8 April 2012.

External links


Messier objects
List Painting of Charles Messier, creator of the Messier catalog
See also
New General Catalogue 3000 to 3499
Categories: