NGC 4013

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
NGC 4013
NGC 4013HSTPart.jpg
HST closeup view of NGC 4013
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension11h 58m 31.13s[1]
Declination+43° 56′ 50.1″[1]
Redshift831 ± 1 km/s[1]
Distance60.6 ± 8.1 Mly
(18.6 ± 2.5 Mpc)[2]
Apparent magnitude (V)12.1B[1]
Characteristics
TypeSBa[1]
Apparent size (V)5.2' x 1.0'[1]
Other designations
UGC 6963,[1] PGC 37691[1] LEDA 37691[3] 2MFGC 9412[3]

IRAS 11559+4413[3] 2MASX J11583141+4356492[3]

MCG+07-25-009[3] UZC J115831.5+435651[3]

NGC 4013 is an edge-on barred spiral galaxy about 55 million light-years away in the constellation Ursa Major. The disk of NGC 4013 shows a distinct "peanut"-shaped bulge in long exposure photographs that N-body computer simulations suggest is consistent with a stellar bar seen perpendicular to the line of sight.[4]

Infrared image of the galaxy showing a ring of heavy star formation

A recent deep color image of NGC 4013 revealed a looping tidal stream of stars extending over 80 thousand light-years from the Galactic Center. This structure is thought to be the remnants of a smaller galaxy that was torn apart by tidal forces as it collided with NGC 4013.[5]

Supernova SN 1989Z was discovered on December 30, 1989 at apparent magnitude 12.[6]

NGC 4013 is a member of the Ursa Major Cluster.[7]

See also[edit]

References[edit]

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4013. Retrieved 2006-11-25.
  2. ^ "Distance Results for NGC 4013". NASA/IPAC Extragalactic Database. Retrieved 2010-06-13.
  3. ^ a b c d e f "SIMBAD". Results for NGC 4013. Retrieved 2009-12-25.
  4. ^ Combes, F. and Sanders, R.H., "Formation and properties of persisting stellar bars", Astronomy and Astrophysics, vol. 96, no. 1-2, Mar. 1981, p. 164-173.
  5. ^ D. Martínez-Delgado (IAC); M. Pohlen (Cardiff); R. Jay GaBany (Blackbird Obs); S. Majewski (Univ Virginia); et al. (2009). "Discovery of a Giant Stellar Tidal Stream Around the Disk Galaxy NGC 4013". Astrophysical Journal. 692 (2): 955–963. arXiv:0801.4657. Bibcode:2009ApJ...692..955M. doi:10.1088/0004-637X/692/2/955. S2CID 14957582.
  6. ^ "List of Supernovae". Harvard-Smithsonian Center for Astrophysics (IAU). Retrieved 2010-07-14.
  7. ^ Rueff, Katherine M.; Howk, J. Christopher; Pitterle, Marissa; Hirschauer, Alec S.; Fox, Andrew J.; Savage, Blair D. (2013-01-31). "The Relationship Between the Dense Neutral and Diffuse Ionized Gas in the Thick Disks of Two Edge-On Spiral Galaxies". The Astronomical Journal. 145 (3): 62. arXiv:1301.0325. Bibcode:2013AJ....145...62R. doi:10.1088/0004-6256/145/3/62. ISSN 0004-6256. S2CID 119277886.

External links[edit]