NGC 2207 and IC 2163

Last updated
NGC 2207 / IC 2163
NGC2207+IC2163.jpg
Hubble Space Telescope image of NGC 2207 (left) and IC 2163 (right)
Observation data (J2000 epoch)
Constellation Canis Major
Right ascension 06h 16m 22.0s / 06h 16m 28.0s [1]
Declination −21° 22′ 22″ / −21° 22′ 33″ [1]
Redshift 2741 ± 15 / 2765 ± 20 km/s [1]
Distance 81 ± 39 Mly
(24.9 ± 12 Mpc) [2]
Apparent magnitude  (V)12.2 / 11.6 [1]
Characteristics
Type SAB(rs)bc pec / SB(rs)c pec [1]
Apparent size  (V)4.3′ × 2.8′ / 3.0′ × 1.2′ [1]
Notable features colliding galaxies
Other designations
RR132a / RR132b, [1] PGC 018749 / 018751, UGCA 124/125 [1]

NGC 2207 and IC 2163 are a pair of colliding spiral galaxies about 80 million light-years away [2] in the constellation Canis Major. Both galaxies were discovered by John Herschel in 1835.

Contents

The larger spiral, NGC 2207, is classified as an intermediate spiral galaxy exhibiting a weak inner ring structure around the central bar. The smaller companion spiral, IC 2163, is classified as a barred spiral galaxy that also exhibits a weak inner ring and an elongated spiral arm that is likely being stretched by tidal forces with the larger companion. Both galaxies contain a vast amount of dust and gas, and are beginning to exhibit enhanced rates of star formation, as seen in infrared images.

NGC 2207 is in the process of colliding and merging with IC 2163. But unlike the Antennae or the Mice Galaxies, they are still two separate spiral galaxies. They are only in the first step of colliding and merging, with NGC 2207 being in the process of tidally stripping IC 2163. Soon they will collide, probably looking a bit more like the Mice Galaxies. In about a billion years time they are expected to merge and become an elliptical galaxy or perhaps a disk galaxy. [3]

Four supernovae have been observed in NGC 2207:

Two supernovae have been observed in IC 2163: [8]

See also

Related Research Articles

<span class="mw-page-title-main">Messier 100</span> Galaxy in the constellation Coma Berenices

Messier 100 is a grand design intermediate spiral galaxy in the southern part of the mildly northern Coma Berenices. It is one of the brightest and largest galaxies in the Virgo Cluster and is approximately 55 million light-years from our galaxy, its diameter being 107,000 light years, and being about 60% as large. It was discovered by Pierre Méchain in 1781 and 29 days later seen again and entered by Charles Messier in his catalogue "of nebulae and star clusters".. It was one of the first spiral galaxies to be discovered, and was listed as one of fourteen spiral nebulae by Lord William Parsons of Rosse in 1850. NGC 4323 and NGC 4328 are satellite galaxies of M100; the former is connected with it by a bridge of luminous matter.

<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, 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 3184</span> Galaxy in the constellation Ursa Major

NGC 3184, the Little Pinwheel Galaxy, is a spiral galaxy approximately 40 million light-years away in the constellation Ursa Major. It has two HII regions named NGC 3180 and NGC 3181.

<span class="mw-page-title-main">Antennae Galaxies</span> Interacting galaxy in the constellation Corvus

The Antennae Galaxies are a pair of interacting galaxies in the constellation Corvus. They are currently going through a starburst phase, in which the collision of clouds of gas and dust, with entangled magnetic fields, causes rapid star formation. They were discovered by William Herschel in 1785.

<span class="mw-page-title-main">NGC 6745</span> Galaxy in the constellation Lyra

NGC 6745 is an irregular galaxy about 206 million light-years away in the constellation Lyra. It is actually a trio of galaxies in the process of colliding.

<span class="mw-page-title-main">NGC 4013</span> Galaxy in the constellation Ursa Major

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.

<span class="mw-page-title-main">NGC 4088</span> Galaxy in the constellation of Ursa Major

NGC 4088 is an intermediate spiral galaxy in the constellation Ursa Major. The galaxy forms a physical pair with NGC 4085, which is located 11′ away.

<span class="mw-page-title-main">NGC 4567 and NGC 4568</span> Interacting galaxy pair in the constellation Virgo

NGC 4567 and NGC 4568 are a set of unbarred spiral galaxies about 60 million light-years away in the constellation Virgo. They were both discovered by William Herschel in 1784. They are part of the Virgo Cluster of galaxies.

<span class="mw-page-title-main">NGC 5090 and NGC 5091</span> Merging galaxies in the constellation Centaurus

NGC 5090 and NGC 5091 are a set of galaxies approximately 160 million light-years away in the constellation Centaurus. They are in the process of colliding and merging with some evidence of tidal disruption of NGC 5091.

<span class="mw-page-title-main">NGC 2608</span> Galaxy in the constellation Cancer

NGC 2608 is a barred spiral galaxy located 93 million light-years away in the constellation Cancer. It is 62,000 light-years across, and about 60% of the width of the Milky Way. It is considered a grand design spiral galaxy and is classified as SB(s)b, meaning that the galaxy's arms wind moderately around the prominent central bar.

<span class="mw-page-title-main">Arp 272</span> Two interacting galaxies in the constellation Hercules

Arp 272 is a pair of interacting galaxies consisting of the two spiral galaxies NGC 6050 (left) and IC 1179 (right). Arp 272 lies around 450 million light years from Earth in the constellation of Hercules. The galaxies are part of the Hercules Cluster, which is itself part of the CfA2 Great Wall.

<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">IC 755</span> Galaxy in the constellation Coma Berenices

IC 755, also known as NGC 4019, is a barred spiral galaxy. It lies about 60 million light-years away in the northern constellation of Coma Berenices. It is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 3938</span> Galaxy in the constellation Ursa Major

NGC 3938 is an unbarred spiral galaxy in the Ursa Major constellation. It was discovered on 6 February 1788 by William Herschel. It is one of the brightest spiral galaxies in the Ursa Major South galaxy group and is roughly 67,000 light years in diameter. It is approximately 43 million light years away from Earth. NGC 3938 is classified as type Sc under the Hubble sequence, a loosely wound spiral galaxy with a smaller and dimmer bulge. The spiral arms of the galaxy contain many areas of ionized atomic hydrogen gas, more so towards the center.

<span class="mw-page-title-main">NGC 6221</span> Galaxy in the constellation Ara

NGC 6221 is a barred spiral galaxy located in the constellation Ara. In de Vaucouleurs' galaxy morphological classification scheme, it is classified as SB(s)bc and was discovered by British astronomer John Herschel on 3 May 1835. NGC 6221 is located at about 69 million light years from Earth.

<span class="mw-page-title-main">UGC 8335</span> Pair of strongly interacting galaxies in Ursa Major

UGC 8335 is a pair of strongly interacting spiral galaxies. They have been distorted by extreme tidal forces, creating prominent tidal tails and a bridge of gas and stars between the galaxies.

<span class="mw-page-title-main">NGC 214</span> Galaxy in the constellation Andromeda

NGC 214 is a spiral galaxy in the northern constellation of Andromeda, located at a distance of 194 megalight-years from the Milky Way. It was discovered on September 10, 1784 by William Herschel. The shape of this galaxy is given by its morphological classification of SABbc, which indicates a weak bar-like structure (SAB) at the core and moderate to loosely-wound spiral arms (bc).

<span class="mw-page-title-main">NGC 5559</span> Galaxy in the constellation Boötes

NGC 5559 is a barred spiral galaxy, located 240 million light-years away in the constellation of Boötes. It was discovered on April 10, 1785, by the astronomer William Herschel.

<span class="mw-page-title-main">NGC 5395</span> Interacting spiral galaxy in the constellation Canes Venatici

NGC 5395 is an interacting spiral galaxy located at a distance of 160 million light years, but receding away from the Earth at 3511 kilometers per second, in the constellation Canes Venatici. It was discovered by William Herschel on May 16, 1787. NGC 5395 and NGC 5394 are included in the Atlas of Peculiar Galaxies as Arp 84 in the category "Spiral galaxies with large high surface brightness companions".

<span class="mw-page-title-main">NGC 918</span> Barred spiral galaxy in the constellation Aries

NGC 918 is a barred spiral galaxy in the constellation Aries about 67 million light years from the Milky Way. It was discovered by John Herschel on Jan 11, 1831.

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 2207 / IC 2163. Retrieved 2006-11-25.
  2. 1 2 "Distance Results for NGC 2207". NASA/IPAC Extragalactic Database. Retrieved 2010-05-22.
  3. ↑ Junko Ueda; et al. (2014). "Cold molecular gas in merger remnants. I. Formation of molecular gas disks". The Astrophysical Journal Supplement Series. 214 (1): 1. arXiv: 1407.6873 . Bibcode:2014ApJS..214....1U. doi:10.1088/0067-0049/214/1/1. S2CID   716993.
  4. ↑ Kirshner, Robert P.; Arp, H.C.; Dunlap, J.R. (1976). "Observations of Supernovae - 1975a in NGC 2207 and 1975b in the Perseus Cluster". Astrophysical Journal. 207 (1): 44–52. Bibcode:1976ApJ...207...44K. doi: 10.1086/154465 .
  5. ↑ Jha, S.; Garnavich, P.; Challis, P.; Kirshner, R.; et al. (1999). "Supernova 1999ec in NGC 2207". IAU Circular. 7269: 2. Bibcode:1999IAUC.7269....2J.
  6. ↑ van den Bergh, Sidney; Li, Weidong; Filippenko, Alexei V. (2003). "Classifications of the Host Galaxies of Supernovae, Set II". The Publications of the Astronomical Society of the Pacific. 115 (813): 1280–88. arXiv: astro-ph/0308195 . Bibcode:2003PASP..115.1280V. doi:10.1086/379106. S2CID   2015979.
  7. ↑ Conseil, E.; Fraser, M.; Inserra, C.; Walton, N.; et al. (2013). "Supernova 2013ai in NGC 2207 = Psn J06161835-2122329". Central Bureau Electronic Telegrams. 3431 (3431): 1. Bibcode:2013CBET.3431....1K.
  8. ↑ 2018lab in IC 2136 (David Bishop)
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.