M96 Group

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M96 Group
AnttlersM95-m96.jpg
M95 (left) and M96 (right). Credit:Scott Anttila.
Observation data (Epoch J2000 [1] [2] )
Constellation(s) Leo [3] [4]
Right ascension 10h 48m 34.7s [1]
Declination +12° 40′ 15″ [1]
Brightest member M96 [3] [4]
Number of galaxies8-24 [3] [4] [5] [6]
Distance 11.3  Mpc (37  Mly) [1]
Other designations
Leo I Group, [6] LGG 217, [3] NOGG H 507, [4]
NOGG P1 498, [4] NOGG P2 507 [4]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

The M96 Group (also known as the Leo I Group) is a group of galaxies in the constellation Leo. This group contains between 8 and 24 galaxies, including three Messier objects. [3] [4] [5] [6] It also contains the Leo Ring. The group is one of many groups that lies within the Virgo Supercluster (the combined Local Group and Virgo cluster). [7]

Contents

Members

The table below lists galaxies that have been consistently identified as group members in the Nearby Galaxies Catalog, [5] the survey of Fouque et al., [6] the Lyons Groups of Galaxies (LGG) Catalog, [3] and the three group lists created from the Nearby Optical Galaxy sample of Giuricin et al. [4]

Members of the M96 Group
Name Type [8] [9] R.A. (J2000) [8] [9] Dec. (J2000) [8] [9] Redshift (km/s) [8] [9] Apparent Magnitude [8] [9]
M95 SB(r)b10h 43m 57.7s+11° 42′ 14″778 ± 411.4
M96 SAB(rs)ab10h 46m 45.7s+11° 49′ 12″897 ± 410.1
M105 E110h 47m 49.6s+12° 34′ 54″911 ± 210.2
NGC 3299 SAB(s)dm10h 36m 23.8s+12° 42′ 27″641 ± 613.3
NGC 3377 E5.510h 47m 42.4s+13° 59′ 08″665 ± 211.2
NGC 3384 SB(s)010h 48m 16.9s+12° 37′ 46″704 ± 210.9
NGC 3412 SB(s)010h 50m 53.3s+13° 24′ 44″841 ± 211.5
NGC 3489 SAB(rs)011h 00m 18.6s+13° 54′ 04″677 ± 211.1
Leo Ring H I region10h 48m 19.0s+12° 41′ 21″960 ± 80

Nearby groups

The Leo Triplet, which includes the spiral galaxies M65, M66, and NGC 3628, [3] [4] [5] is located physically near the M96 Group. [10] Some group identification algorithms actually identify the Leo Triplet at part of the M96 Group. [4] [6] The two groups may actually be separate parts of a much larger group. [10]

M96 Group also includes the bright galaxies Messier 105 and Messier 95. A galactic maelstrom.jpg
M96 Group also includes the bright galaxies Messier 105 and Messier 95.

See also

Related Research Articles

<span class="mw-page-title-main">NGC 5866</span> Galaxy in the constellation Draco

NGC 5866 is a relatively bright lenticular galaxy in the constellation Draco. NGC 5866 was most likely discovered by Pierre Méchain or Charles Messier in 1781, and independently found by William Herschel in 1788. Measured orbital velocities of its globular cluster system imply that dark matter makes up only 34±45% of the mass within 5 effective radii, a notable paucity.

<span class="mw-page-title-main">Leo Triplet</span> Group of galaxies in the constellation Leo

The Leo Triplet is a small group of galaxies about 35 million light-years away in the constellation Leo. This galaxy group consists of the spiral galaxies M65, M66, and NGC 3628.

<span class="mw-page-title-main">Messier 95</span> Galaxy in the constellation Leo

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.

<span class="mw-page-title-main">Messier 105</span> Elliptical galaxy in the constellation Leo

Messier 105 or M105, also known as NGC 3379, is an elliptical galaxy 36.6 million light-years away in the equatorial constellation of Leo. It is the biggest elliptical galaxy in the Messier catalogue that is not in the Virgo cluster. It was discovered by Pierre Méchain in 1781, just a few days after he discovered the nearby galaxies Messier 95 and Messier 96. This galaxy is one of a few not object-verified by Messier so omitted in the editions of his Catalogue of his era. It was appended when Helen S. Hogg found a letter by Méchain locating and describing this object which matched those aspects under its first-published name, NGC 3379.

<span class="mw-page-title-main">Messier 109</span> Galaxy in the constellation Ursa Major

Messier 109 is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar approximately 67.2 ± 23 million light-years away in the northern constellation Ursa Major. M109 can be seen south-east of the star Phecda.

<span class="mw-page-title-main">M101 Group</span> Loose group of galaxies in the constellation Ursa Major

The M101 Group is a loose group of galaxies located in the constellation Ursa Major. The group is named after the brightest galaxy in the group, the Pinwheel Galaxy (M101). Most of the other members of the group are companions of the Pinwheel Galaxy. The group itself is one of many located within the Virgo Supercluster.

<span class="mw-page-title-main">NGC 4038 Group</span> Galaxy group in the constellations Corvus and Crater

The NGC 4038 Group is a group of galaxies in the constellations Corvus and Crater. The group may contain between 13 and 27 galaxies. The group's best known galaxies are the Antennae Galaxies, a well-known interacting pair of galaxies.

The M94 Group is a loose, extended group of galaxies located about 13 million light-years away in the constellations Canes Venatici and Coma Berenices. The group is one of many groups that lies within the Virgo Supercluster and one of the closest groups to the Local Group.

The M74 Group is a small group of galaxies in the constellation Pisces. The face-on spiral galaxy M74 is the brightest galaxy within the group. Other members include the peculiar spiral galaxy NGC 660 and several smaller irregular galaxies . The M74 Group is one of many galaxy groups that lie within the Virgo Supercluster.

<span class="mw-page-title-main">M109 Group</span> Galaxy group in the constellation Ursa Major

The M109 Group is a group of galaxies about 55 million light-years away in the constellation Ursa Major. The group is named after the brightest galaxy within the group, the spiral galaxy M109.

The NGC 4631 Group is a poorly defined group of galaxies, about 25 million light-years from Earth in the Coma Berenices and Canes Venatici constellations.

<span class="mw-page-title-main">NGC 3953</span> Galaxy in the constellation Ursa Major

NGC 3953 is a barred spiral galaxy located in the constellation Ursa Major. The galaxy is known to exhibit an inner ring structure that encircles the bar. NGC 3953 is a member of the M109 Group, a large group of galaxies located within the constellation Ursa Major that may contain over 50 galaxies.

<span class="mw-page-title-main">NGC 3384</span> Galaxy in the constellation Leo

NGC 3384 is an elliptical galaxy in the constellation Leo. The galaxy was discovered by William Herschel in 1784 as part of the Herschel 400 Catalogue. The high age of the stars in the central region of NGC 3384 was confirmed after analysis of their color. More than 80% were found to be Population II stars which are over a billion years old. The supermassive black hole at the core has a mass of 1.6+0.1
−0.2×107 M☉.

<span class="mw-page-title-main">NGC 5866 Group</span> Group of galaxies in the constellation Draco

The NGC 5866 Group is a small group of galaxies located in the constellation Draco. The group is named after NGC 5866, the galaxy with the highest apparent magnitude in the group, although some galaxy group catalogs list NGC 5907 as the brightest member.

<span class="mw-page-title-main">M51 Group</span> Galaxy cluster in constellation Canes Venatici

The M51 Group is a group of galaxies located in Canes Venatici. The group is named after the brightest galaxy in the group, the Whirlpool Galaxy (M51A). Other notable members include the companion galaxy to the Whirlpool Galaxy (M51B) and the Sunflower Galaxy (M63).

<span class="mw-page-title-main">Coma I</span> Galaxy cluster in constellation Coma Berenices

The Coma I Group is a group of galaxies located about 14.5 Mpc (47.3 Mly) away in the constellation Coma Berenices. The brightest member of the group is NGC 4725. The Coma I Group is rich in spiral galaxies while containing few elliptical and lenticular galaxies. Coma I lies in the foreground of the more distant Coma and Leo clusters and is located within the Virgo Supercluster.

<span class="mw-page-title-main">NGC 3981</span> Spiral galaxy in the constellation Crater

NGC 3981 is an unbarred spiral galaxy located 62 million light-years away in the constellation of Crater. It was discovered on February 7, 1785 by William Herschel.

<span class="mw-page-title-main">NGC 4221</span> Galaxy in constellation Draco

NGC 4221 is a barred lenticular galaxy located about 75.9 million light-years away in the constellation of Draco. It was discovered on April 3, 1832 by the astronomer John Herschel. NGC 4221 is notable for having an outer ring that surrounds the inner barred central region of the galaxy.

The Telescopium−Grus Cloud is a galaxy filament in the constellations of Pavo, Indus, and Telescopium. It was first defined by astronomer Brent Tully in his book The Nearby Galaxies Atlas and its companion book The Nearby Galaxies Catalog.

<span class="mw-page-title-main">NGC 4324</span> Galaxy in the constellation of Virgo

NGC 4324 is a lenticular galaxy located about 85 million light-years away in the constellation Virgo. It was discovered by astronomer Heinrich d'Arrest on March 4, 1862. NGC 4324 has a stellar mass of 5.62 × 1010M☉, and a baryonic mass of 5.88 × 1010M☉. The galaxy's total mass is around 5.25 × 1011M☉. NGC 4324 is notable for having a ring of star formation surrounding its nucleus. It was considered a member of the Virgo II Groups until 1999, when its distance was recalculated and it was placed in the Virgo W Group.

References

  1. 1 2 3 4 "MESSIER 096 GROUP". NASA/IPAC Extragalactic Database. Retrieved 2015-11-05.
  2. ↑ "NAME M96 GROUP". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2015-10-24.
  3. 1 2 3 4 5 6 7 A. Garcia (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement . 100: 47–90. Bibcode:1993A&AS..100...47G.
  4. 1 2 3 4 5 6 7 8 9 10 G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (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.
  5. 1 2 3 4 R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN   0-521-35299-1.
  6. 1 2 3 4 5 P. Fouque; E. Gourgoulhon; P. Chamaraux; G. Paturel (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. ↑ R. B. Tully (1982). "The Local Supercluster". Astrophysical Journal. 257: 389–422. Bibcode:1982ApJ...257..389T. doi: 10.1086/159999 .
  8. 1 2 3 4 5 "NASA/IPAC Extragalactic Database". Results for various galaxies. Retrieved 2006-10-24.
  9. 1 2 3 4 5 "SIMBAD" . Retrieved 2015-10-24.
  10. 1 2 L. Ferrarese; H. C. Ford; J. Huchra; R. C. Kennicutt Jr.; J. R. Mould; S. Sakai; W. L. Freedman; P. B. Stetson; B. F. Madore; B. K. Gibson; J. A. Graham; S. M. Hughes; G. D. Illingworth; D. D. Kelson; L. Macri; K. Sebo; N. A. Silbermann (2000). "A Database of Cepheid Distance Moduli and Tip of the Red Giant Branch, Globular Cluster Luminosity Function, Planetary Nebula Luminosity Function, and Surface Brightness Fluctuation Data Useful for Distance Determinations". Astrophysical Journal Supplement. 128 (2): 431–459. arXiv: astro-ph/9910501 . Bibcode:2000ApJS..128..431F. doi:10.1086/313391. S2CID   121612286.
  11. ↑ "A galactic maelstrom" . Retrieved 31 August 2015.
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