Crater Cloud

Crater Cloud
The Antennae Galaxies, which are the brightest members of the NGC 4038 Group, the largest group in the Crater Cloud.
Observation data (Epoch )
Parent structureVirgo Supercluster[1]
Major axis7.9 Mpc (26 Mly)[2]
Distance23.31 Mpc (76 Mly) [2]

The Crater Cloud is a galaxy filament[3][2] consisting of at least 11 galaxy groups.[4][5] It is located approximately 23.31 Mpc (76 Mly) from the Solar System.[2] The Crater Cloud lies about 7 Mpc (23 Mly) below the Virgo Southern Extension.[6]

The Crater Cloud, along with the Leo Cloud, is actually part of the same branch of a larger galaxy filament that extends from the Centaurus Cluster through the Virgo Cluster and continues through the Ursa Major Cluster, known as the Virgo Strand. The Virgo Strand is the main component of the Virgo Supercluster and is made of two branches with the lower branch consisting of the Leo and Crater clouds, while the upper branch is known as the Virgo Southern Extension or Virgo II Groups.[3]

The Crater Cloud is prolate and points toward the Virgo Cluster.[1]

List of groups

Below is a list of groups in the Crater Cloud according to astronomer Brent Tully.[4][5]

Column 1: The name of the group in Tully's NBGG[4][5]
Column 2: The right ascension for epoch 2000.
Column 3: The declination for epoch 2000.
Column 4: Number of members of the group.
Column 5: Brightest member of the group
Column 6: Redshift of the group.
Column 7: Distance of the group (Millions of light-years).
Column 8: Cross-Identifications with other catalogs.

(Sources for data columns:[4][5][7][8][9])

Groups within the Crater Cloud
Name of group R.A. (J2000) Dec. (J2000) Number of members Brightest member Redshift Distance (Mly) Cross-ID
NBGC 22-1 11h 59m 57.2s[10] -19d 16m 21s[10]
  • 13 (Tully)
  • 14 (Fourque)
  • 20 (Garcia)
  • 17/14/13 (Giuricin)
 NGC 4038[9] 0.005621[10] 91[10] NGC 4038 Group,[11][7][8][9] LGG 263,[8] NOGG H 580, NOGG P1 596, NOGG P2 603[9]
NBGC 22-2 11h 43m 30.1s[12] -10d 28m 35s[12]
  • 3 (Tully)
  • 4 (Fourque)
  • 5 (Garcia)
  • 3/6/6 (Giuricin)
 NGC 3892[5] 0.005831[13] 94[13] NGC 3892 Group,[7] LGG 248,[8] NGC 3732 Group, NOGG H 544, NOGG P1 570, NOGG P2 579[9]
NBGC 22-3 12h 16m 29.0s[14] -11d 31m 42s[14]
  • 2 (Tully)
 DDO 116[5] 0.003901[14] 68[14]
NBGC 22-4 11h 48m 30s[9] -28d 31m 42s[9]
  • 9 (Tully)
  • 7 (Fourque)
  • 9 (Garcia)
  • 5/11/11 (Giuricin)
 NGC 3923[9] 0.005801[15] 71[15] NGC 3923 Group,[16][7][8][9] LGG 255,[8] NGC 3936 Group, LGG 253 [8] NOGG H 568, NOGG P1 581, NOGG P2 590[9]
NBGC 22-5 12h 06m 34.7s[17] -29d 24m 16s[17]
  • 3 (Tully)
  • 6 (Fourque)
  • 5 (Garcia)
  • 4 (Giuricin)
 NGC 4105[9] 0.006198[18] 97[18] NGC 4105 Group,[7][8][9] LGG 270,[8] NOGG H 590, NOGG P1 607, NOGG P2 614[9]
NBGC 22-6 11h 13m 01.3s[19] -26d 53m 15s[19]
  • 2 (Tully)
  • 3 (Fourque)
  • 6 (Garcia)
  • 5 (Giuricin)
 NGC 3585[9] 0.004783[20] 79[20] NGC 3585 Group,[7][8][9] LGG 230,[8] NOGG H 511, NOGG P1 526, NOGG P2 536[9]
NBGC 22-7 11h 23m 08.6s[21] -09d 59m 42s[21]
  • 3 (Tully)
  • 3 (Fourque)
  • 3 (Garcia)
  • 3 (Giuricin)
 NGC 3672[9] 0.005987[21] 96[21] NGC 3672 Group,[7][8][9] LGG 235,[8] NOGG H 521, NOGG P1 535, NOGG P2 545[9]
NBGC 22-8 11h 41m 40s[9] -06d 19m 00s[9]
  • 2 (Tully)
  • 2 (Giuricin)
 NGC 3818[9] 0.005674[22] 92[22] NGC 3818 Group,[9] NOGG H 552, NOGG P1 569, NOGG P2 578[9]
NBGC 22-9 11h 52m 26.5s[23] -04d 18m 37s[23]
  • 2 (Tully)
  • 4 (Garcia)
  • 3 (Giuricin)
 NGC 3952[9] 0.005260[24] 86[24] NGC 3952 Group,[8][9] LGG 257,[8] NOGG H 572, NOGG P1 590, NOGG P2 599[9]
NBGC 22-10 12h 00m 14.6s[25] -01d 14m 03s[25]
  • 2 (Tully)
  • 4 (Garcia)
  • 3 (Giuricin)
 NGC 4030[9] 0.004760[25] 80[25] NGC 4030 Group,[8][9] LGG 264,[8] NOGG H 583, NOGG P1 601, NOGG P2 609[9]
NBGC 22-11 12h 10m 28.7s[26] 02d 01m 05s[26]
  • 2 (Tully)
  • 3 (Fourque)
  • 6 (Garcia)
  • 4/5/4 (Giuricin)
 NGC 4179[9] 0.004336[27] 74[27] NGC 4179 Group,[7][9] NGC 4123 Group, LGG 275,[8] NOGG H 596, NOGG P1 613, NOGG P2 621[9]

See also

References

  1. ^ a b Tully, R. B. (1982-06-01). "The Local Supercluster". The Astrophysical Journal. 257: 389–422. Bibcode:1982ApJ...257..389T. doi:10.1086/159999. ISSN 0004-637X.
  2. ^ a b c d Kim, Suk; Rey, Soo-Chang; Bureau, Martin; Yoon, Hyein; Chung, Aeree; Jerjen, Helmut; Lisker, Thorsten; Jeong, Hyunjin; Sung, Eon-Chang; Lee, Youngdae; Lee, Woong; Chung, Jiwon (2016-12-01). "Large-scale Filamentary Structures around the Virgo Cluster Revisited". The Astrophysical Journal. 833 (2): 207. arXiv:1611.00437. Bibcode:2016ApJ...833..207K. doi:10.3847/1538-4357/833/2/207. ISSN 0004-637X. {{cite journal}}: |last3= has generic name (help)
  3. ^ a b Courtois, Hélène M.; Pomarède, Daniel; Tully, R. Brent; Hoffman, Yehuda; Courtois, Denis (2013-09-01). "Cosmography of the Local Universe". The Astronomical Journal. 146 (3): 69. arXiv:1306.0091. Bibcode:2013AJ....146...69C. doi:10.1088/0004-6256/146/3/69. ISSN 0004-6256.
  4. ^ a b c d Tully, R. Brent (October 1987). "Nearby groups of galaxies. II - an all-sky survey within 3000 kilometers per second". The Astrophysical Journal. 321: 280. Bibcode:1987ApJ...321..280T. doi:10.1086/165629. ISSN 0004-637X.
  5. ^ a b c d e f Tully, R. Brent (1988). Nearby galaxies catalog. Cambridge: Cambridge University Press. ISBN 0-521-35299-1. OCLC 16524318.
  6. ^ Read, A. M.; Ponman, T. J.; Wolstencroft, R. D. (1995-11-15). "The X-ray properties of the merging galaxy pair NGC 4038/9 – the Antennae". Monthly Notices of the Royal Astronomical Society. 277 (2): 397–412. arXiv:astro-ph/9506047. Bibcode:1995MNRAS.277..397R. doi:10.1093/mnras/277.2.397. ISSN 0035-8711.
  7. ^ a b c d e f g h Fouque, P.; Gourgoulhon, E.; Chamaraux, P.; Paturel, G. (1992-05-01). "Groups of galaxies within 80 Mpc. II. The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series. 93: 211–233. Bibcode:1992A&AS...93..211F. ISSN 0365-0138.
  8. ^ a b c d e f g h i j k l m n o p q r Garcia, A. M. (1993-07-01). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47–90. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.
  9. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (2000-11-01). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal. 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X. S2CID 9618325.
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