NGC 4647

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NGC 4647
NGC 4647 cropped.jpg
NGC 4647 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 12h 43m 32.3s [1]
Declination 11° 34′ 55″ [1]
Redshift 0.004700/1409 km/s [1]
Distance 63 Mly (estimated)
Group or cluster Virgo Cluster
Apparent magnitude  (V)11.94 [1]
Characteristics
Type SAB(rs)c [1]
Size~90,000 ly (estimated)
Apparent size  (V)2.9 x 2.3 [1]
Other designations
Arp 116, CGCG 71-15, IRAS 12410+1151, KCPG 353A, MCG 2-33-1, PGC 42816, UGC 7896, V V 206, VCC 1972 [1]

NGC 4647 is an intermediate spiral galaxy estimated to be around 63 million light-years away [2] in the constellation of Virgo. [3] It was discovered by astronomer William Herschel on March 15, 1784. [3] NGC 4647 is listed along with Messier 60 as being part of a pair of galaxies called Arp 116; [4] [5] their designation in Halton Arp's Atlas of Peculiar Galaxies. The galaxy is located on the outskirts of the Virgo Cluster. [6]

Contents

Interaction with Messier 60

In optical images, the two galaxies' disks overlap. This has suggested an ongoing interaction, however images do not reveal any signs of star formation which would have been caused by a tidal interaction between the two galaxies. Recent studies of Hubble images made in 2012 of the two galaxies indicate that tidal interactions between the two have just begun. [7]

Interstellar medium of NGC 4647

The gas in NGC 4647 has been mildly disturbed. The galaxy's location in the Virgo Cluster suggests that it might have suffered an effect known as ram-pressure stripping caused by the intracluster medium. Another explanation may be hot gas in the halo of Messier 60. The hot gas in Messier 60 may have increased the pressure of gas on the eastern side of NGC 4647 through either ram-pressure stripping or a bow-shock between the two galaxies causing the observed asymmetry of gas in the galaxy. The difficulty is that the galaxies would have to be so close that tidal forces from Messier 60 would cause the disk of NGC 4647 to get ripped apart. [8]

Supernovae

Two supernovae have been observed in NGC 4647:

See also

Related Research Articles

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

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<span class="mw-page-title-main">Messier 61</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">Whirlpool Galaxy</span> Galaxy in the constellation Canes Venatici

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<span class="mw-page-title-main">Messier 60</span> Elliptical galaxy in the constellation Virgo

Messier 60 or M60, also known as NGC 4649, is an elliptical galaxy approximately 57 million light-years away in the equatorial constellation of Virgo. Together with NGC 4647, it forms a pair known as Arp 116. Messier 60 and nearby elliptical galaxy Messier 59 were discovered by Johann Gottfried Koehler in April 1779, observing a comet in the same part of the sky. Charles Messier added both to his catalogue about three days after this.

<span class="mw-page-title-main">Messier 90</span> Galaxy in the constellation Virgo

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<span class="mw-page-title-main">Messier 99</span> Spiral galaxy in the constellation Coma Berenices

Messier 99 or M99, also known as NGC 4254 or St. Catherine's Wheel, is a grand design spiral galaxy in the northern constellation Coma Berenices approximately 15,000,000 parsecs from the Milky Way. It was discovered by Pierre Méchain on 17 March 1781. The discovery was then reported to Charles Messier, who included the object in the Messier Catalogue of comet-like objects. It was one of the first galaxies in which a spiral pattern was seen. This pattern was first identified by Lord Rosse in the spring of 1846.

<span class="mw-page-title-main">NGC 4414</span> Galaxy in the constellation Coma Berenices

NGC 4414, also known as the Dusty Spiral Galaxy, is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It was discovered by German-British astronomer William Herschel on 13 March 1785.

<span class="mw-page-title-main">NGC 772</span> Galaxy in the constellation Aries

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<i>Atlas of Peculiar Galaxies</i> Catalogue of peculiar galaxies produced by Halton Arp

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<span class="mw-page-title-main">Arp 240</span> Pair of interacting galaxies in the constellation Virgo

Arp 240 is a pair of interacting spiral galaxies located in the constellation Virgo. The two galaxies are listed together as Arp 240 in the Atlas of Peculiar Galaxies. The galaxy on the right is known as NGC 5257, while the galaxy on the left is known as NGC 5258. Both galaxies are distorted by the gravitational interaction, and both are connected by a tidal bridge, as can be seen in images of these galaxies.

<span class="mw-page-title-main">NGC 4639</span> Galaxy in the constellation Virgo

NGC 4639 is a barred spiral galaxy located in the equatorial constellation of Virgo. It was discovered by German-born astronomer William Herschel on April 12, 1784. John L. E. Dreyer described it as "pretty bright, small, extended, mottled but not resolved, 12th magnitude star 1 arcmin to southeast". This is a relatively nearby galaxy, lying approximately 72 million light-years away from the Milky Way. It is a companion to NGC 4654, and the two appear to have interacted roughly 500 million years ago. NGC 4639 is a member of the Virgo Cluster.

<span class="mw-page-title-main">Arp 271</span> Interacting galaxies in the constellation Virgo

Arp 271 is a pair of similarly sized interacting spiral galaxies, NGC 5426 and NGC 5427, in the constellation of Virgo. It is not certain whether the galaxies are going to eventually collide or not. They will continue interacting for tens of millions of years, creating new stars as a result of the mutual gravitational attraction between the galaxies, a pull seen in the bridge of stars already connecting the two. Located about 130 million light-years away, the Arp 271 pair is about 130,000 light-years across. It was originally discovered in 1785 by William Herschel. It is speculated, that the Milky Way will undergo a similar collision in about five billion years with the neighbouring Andromeda Galaxy, which is currently located about 2.6 million light-years away.

<span class="mw-page-title-main">NGC 4651</span> Spiral galaxy in the constellation Coma Berenices

NGC 4651 is a spiral galaxy located in the constellation of Coma Berenices that can be seen with amateur telescopes, at a distance not well determined that ranges from 35 million light years to 72 million light years.

<span class="mw-page-title-main">UGC 2885</span> Large barred spiral galaxy in the constellation Perseus

UGC 2885 is a large barred spiral galaxy of type SA(rs)c in the constellation Perseus. It is 232 million light-years (71 Mpc) from Earth and measures 463,000 ly (142,000 pc) across, making it one of the largest known spiral galaxies. It is also a possible member of the Perseus–Pisces Supercluster.

<span class="mw-page-title-main">NGC 2276</span> Galaxy in the constellation Cepheus

NGC 2276 is an intermediate spiral galaxy in the constellation Cepheus. The galaxy lies 120 million light-years away from Earth. NGC 2276 has an asymmetrical appearance, most likely caused by gravitational interactions with its neighbor, elliptical galaxy NGC 2300. NGC 2276 is traveling with an orbital velocity of about 968 km/s due to its neighbor. Trailing NGC 2276 is a long tail of interstellar medium about 300,000 light-years long, formed by ram pressure stripping.

<span class="mw-page-title-main">NGC 4633</span> Galaxy in the constellation Coma Berenices

NGC 4633 is a spiral galaxy located about 70 million light-years away in the constellation of Coma Berenices. It is interacting with the nearby galaxy NGC 4634. NGC 4633 was discovered by astronomer Edward D. Swift on April 27, 1887. It was rediscovered on November 23, 1900, by astronomer Arnold Schwassmann and was later listed as IC 3688. NGC 4633 is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4607</span> Galaxy in the constellation Virgo

NGC 4607 is an edge-on spiral galaxy located about 56 million light-years away in the constellation Virgo. NGC 4607 was discovered by astronomer R. J. Mitchell on April 24, 1854. The galaxy is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 6365</span> Galaxy pair in the constellation Draco

NGC 6365 is a pair of spiral galaxies in the constellation Draco. It consists of two galaxies, PGC 60174 to the south, and PGC 60171 to the north. These two galaxies are also designated respectively by the NASA/IPAC database as NGC 6365A and NGC 6365B. This pair of galaxies was discovered by German astronomer Lewis Swift in 1884.

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 4647. Retrieved 2017-09-02.
  2. ↑ "APOD: 2016 January 28 - Elliptical M60, Spiral NGC 4647". apod.nasa.gov. Retrieved 2017-09-03.
  3. 1 2 "New General Catalog Objects: NGC 4600 - 4649". cseligman.com. Retrieved 2017-09-03.
  4. ↑ "NASA - Odd Galaxy Couple on Space Voyage". www.nasa.gov. Retrieved 2017-09-03.
  5. ↑ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-09-03.
  6. ↑ Cullen, Harriet; Alexander, Paul; Green, D.; Sheth, K. (November 2004). "Neutral ISM in the Interacting Spiral NGC 4647". ASP Conference Series. 320: 156–157. Bibcode:2004ASPC..320..156C.
  7. ↑ "Hubble Heritage". heritage.stsci.edu. Retrieved 2017-09-03.
  8. ↑ Young, L. M.; Rosolowsky, E.; Gorkom, J. H. Van; Lamb, S. A. Lamb (15 June 2006). "The Evolution of the Interstellar Medium in the Mildly Disturbed Spiral Galaxy NGC 4647". The Astrophysical Journal. 650 (1): 166–179. arXiv: astro-ph/0606410 . Bibcode:2006ApJ...650..166Y. doi:10.1086/506959. S2CID   18351912.
  9. ↑ Kharadze, E. K.; Aksenov, E. P.; Kimeridze, G. N. (1979). "Supernova in NGC 4647". International Astronomical Union Circular (3322): 1. Bibcode:1979IAUC.3322....1K.
  10. ↑ "1979A". Transient Name Server. IAU . Retrieved 1 December 2024.
  11. ↑ Randall, Scott W.; Sarazin, Craig L.; Irwin, Jimmy A. (5 September 2005). "XMM-Newton Observation of Diffuse Gas and Low-Mass X-Ray Binaries in the Elliptical Galaxy NGC 4649 (M60)". The Astrophysical Journal. 636: 200–213. arXiv: astro-ph/0509156 . doi: 10.1086/497977 .
  12. ↑ "SN 2022hrs". Transient Name Server. Retrieved 21 April 2022.
  13. ↑ Bishop, David. "Supernovae 2022hrs in NGC 4647". Rochester Astronomy. Retrieved 21 April 2022.


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