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NGC 5907 (also known as Knife Edge Galaxy or Splinter Galaxy) is a spiral galaxy located approximately 50 million light years from Earth.[2] It has an anomalously low metallicity and few detectable giant stars, being apparently composed almost entirely of dwarf stars.[3] It is a member of the NGC 5866 Group.

NGC 5907
NGC 5907 and its looping stellar stream.
Image courtesy of R. Jay GaBany
Observation data (J2000 epoch)
ConstellationDraco
Right ascension15h 15m 53.8s[1]
Declination+56° 19′ 44″[1]
Redshift0.002225[1]
Helio radial velocity667 ± 3 km/s[1]
Distance53.5 ± 8.1 Mly
(16.4 ± 2.5 Mpc)[2]
Apparent magnitude (V)11.1[1]
Characteristics
TypeSA(s)c:
Apparent size (V)12.7' x 1.4'[1]
Other designations
H II.759, GC 4087, h 1917, Splinter Galaxy, NGC 5906, UGC 09801, PGC 054470, MCG +09-25-040[1]

NGC 5907 has long been considered a prototypical example of a warped spiral in relative isolation. In 2006, an international team of astronomers announced the presence of an extended tidal stream surrounding the galaxy that challenges this picture and suggests the gravitational perturbations induced by the stream progenitor may be the cause for the warp.

The galaxy was discovered in 1788 by William Herschel. Supernova 1940A was in this galaxy.[4]

An ultraluminous X-ray source is located in the galaxy.[5]


Location


The edge-on galaxy is seen in the constellation Draco, near the star iota Draconis. It is seen in the sky near to the much more distant galaxy NGC 5965.

NGC Identification


NGC 5907 is also known as NGC 5906.[6][7] This second NGC number refers to a fainter part of the galaxy[6] lying west of the dust lane[7] that was recorded by astronomer and physicist George Johnstone Stoney on April 13, 1850.[6]




References


  1. "NASA/IPAC Extragalactic Database". Results for NGC 5907. Retrieved 2010-07-11.
  2. "Distance Results for NGC 5907". NASA/IPAC Extragalactic Database. Retrieved 2010-07-11.
  3. Liu, M. C.; Marleau, F. R.; Graham, J. R.; Charlot, S.; Sackett, P.; Zepf, S. E. (December 1998). "Weighing the Stellar Content of NGC 5907's Dark Matter Halo". Bulletin of the American Astronomical Society. 30: 1258. Bibcode:1998AAS...193.0807L.
  4. "List of Supernovae". Harvard-Smithsonian Center for Astrophysics (IAU). Retrieved 2010-07-11.
  5. Israel, Gian Luca; Belfiore, Andrea; Stella, Luigi; Esposito, Paolo; Casella, Piergiorgio; De Luca, Andrea; Marelli, Martino; Papitto, Alessandro; Perri, Matteo; Puccetti, Simonetta; Rodríguez Castillo, Guillermo A.; Salvetti, David; Tiengo, Andrea; Zampieri, Luca; D’Agostino, Daniele; Greiner, Jochen; Haberl, Frank; Novara, Giovanni; Salvaterra, Ruben; Turolla, Roberto; Watson, Mike; Wilms, Joern; Wolter, Anna (24 Feb 2017). "An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907". Science. 355 (6327): 817–819. arXiv:1609.07375. Bibcode:2017Sci...355..817I. doi:10.1126/science.aai8635. PMID 28219970. S2CID 206653306.
  6. "New General Catalog Objects: NGC 5900 - 5949". cseligman.com. Retrieved 2020-06-26.
  7. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-06-26.


Wikimedia Commons has media related to NGC 5907.



На других языках

[de] NGC 5907

NGC 5907 ist eine in Kantenlage zu sehende Spiralgalaxie im Sternbild Drache mit einer scheinbaren Helligkeit von 10,4 mag. Sie kann 2,9° südsüdwestlich des 3,3 mag hellen Sterns ι Draconis und etwa 1° nördlich der beiden 11,7 beziehungsweise 11,8 mag hellen Spiralgalaxien NGC 5905 und NGC 5908 in der Nähe zum Sternbild Bärenhüter aufgefunden werden. NGC 5907 hat eine Ausdehnung von 12,6' × 1,4', wobei sie fast keinen sichtbaren Bulge aufweist. Die Galaxie ist somit sehr schlank und vermutlich vom Hubble-Typ Sc. NGC 5907 ist wahrscheinlich Mitglied der etwa 40 Millionen Lichtjahre von der Erde entfernten Galaxiengruppe um NGC 5866. Entsprechend dieser Entfernung und ihrer Winkelausdehnung hat sie einen Durchmesser von ungefähr 150.000 Lichtjahren.[3]
- [en] NGC 5907

[es] NGC 5907

NGC 5907 es una galaxia espiral en la constelación de Draco que se encuentra a 40 millones de años luz de distancia. De magnitud aparente 10,38, su brillo superficial es 13,4 mag/arcsec2. Fue descubierta por William Herschel en 1788.

[ru] NGC 5907

NGC 5907 (другие обозначения — UGC 9801, ZWG 274.38, MCG 9-25-40, ZWG 297.10, IRAS15146+5629, FGC 1875, PGC 54470) — спиральная галактика (Sc) в созвездии Дракон.


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