NGC 7828

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NGC 7828
NGC 7828+NGC 7829 HST.jpg
NGC 7828 (right) by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Cetus
Right ascension 00h 06m 27.1s [1]
Declination −13° 24′ 58″ [1]
Redshift 0.019110 ± 0.000050 [1]
Heliocentric radial velocity 5,729 ± 15 km/s [1]
Distance 294 ± 4.2 Mly (90.25 ± 1.3 Mpc) [1]
Apparent magnitude  (V)13.9 [2]
Characteristics
Type Im pec (Ring B) [1]
Apparent size  (V)0.9′ × 0.5′ [1]
Notable features Interacting galaxy
Other designations
IRAS 00038-1341, Arp 144, MCG -02-01-025, PGC 483, VV 272a

NGC 7828 is a peculiar galaxy in the constellation Cetus. The galaxy lies about 300 million light years away from Earth, which means, given its apparent dimensions, that NGC 7828 is approximately 75,000 light years across. [1] It was discovered by American astronomer Francis Leavenworth in 1886. [3] NGC 7828 forms a pair with its neighbor NGC 7829. The galaxy is included in Halton Arp's Atlas of Peculiar Galaxies in the elliptical galaxies emanating material category as Arp 144.

Contents

NGC 7828 is interacting with NGC 7829, lying about 30 arcseconds from its nucleus. The interaction of the two galaxies, which have similar mass, has led to the creation of an empty ring in NGC 7828. The nucleus of NGC 7828 is obscured in visual light, but it is more visible in the infrared. [4] The ring appears to be partial in H-alpha. The star formation rate of the ring galaxy is estimated to be 6.86 M☉ per year. [5] The two galaxies are surrounded by a neutral hydrogen gas cloud extending to the southeast for 6 arcminutes and 3 arcminutes to the west. [6]

Two supernovae have been observed in NGC 7828, AT2018ewx and SN 2021ocs. [7] SN 2021ocs was a type Ic supernova discovered around maximum magnitude. Its spectrum was unusual, being dominated by oxygen and magnesium emission lines. [8] It was discovered on May 30, 2021, by the ATLAS [9] (Asteroid Terrestrial-impact Last Alert System) astronomical survey and had an apparent magnitude of 17.7. [10]

See also

Related Research Articles

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Messier 77 (M77), also known as NGC 1068 or the Squid Galaxy, is a barred spiral galaxy in the constellation Cetus. It is about 47 million light-years (14 Mpc) away from Earth. Messier 77 was discovered by Pierre Méchain in 1780, who originally described it as a nebula. Méchain then communicated his discovery to Charles Messier, who subsequently listed the object in his catalog. Both Messier and William Herschel described this galaxy as a star cluster. Today, however, the object is known to be a galaxy.

<span class="mw-page-title-main">Messier 108</span> Galaxy in the constellation Ursa Major

Messier 108 is a barred spiral galaxy about 28 million light-years away from Earth in the northern constellation Ursa Major. It was discovered by Pierre Méchain in 1781 or 1782. From the Earth, this galaxy is seen almost edge-on.

<span class="mw-page-title-main">NGC 7331</span> Galaxy in the constellation Pegasus

NGC 7331, also known as Caldwell 30, is an unbarred spiral galaxy about 40 million light-years (12 Mpc) away in the constellation Pegasus. It was discovered by William Herschel in 1784. NGC 7331 is the brightest galaxy in the field of a visual grouping known as the NGC 7331 Group of galaxies. In fact, the other members of the group, NGC 7335, 7336, 7337 and 7340, lie far in the background at distances of approximately 300-350 million light years.

<span class="mw-page-title-main">NGC 4725</span> Galaxy in the constellation Coma Berenices

NGC 4725 is an intermediate barred spiral galaxy with a prominent ring structure, located in the northern constellation of Coma Berenices near the north galactic pole. It was discovered by German-born British astronomer William Herschel on April 6, 1785. The galaxy lies at a distance of approximately 40 megalight-years from the Milky Way. NGC 4725 is the brightest member of the Coma I Group of the Coma-Sculptor Cloud, although it is relatively isolated from the other members of this group. This galaxy is strongly disturbed and is interacting with neighboring spiral galaxy NGC 4747, with its spiral arms showing indications of warping. The pair have an angular separation of 24′, which corresponds to a projected linear separation of 370 kly. A tidal plume extends from NGC 4747 toward NGC 4725.

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

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<span class="mw-page-title-main">NGC 4921</span> Galaxy in the constellation Coma Berenices

NGC 4921 is a barred spiral galaxy in the Coma Cluster, located in the constellation Coma Berenices. It is about 320 million light-years from Earth. The galaxy has a nucleus with a bar structure that is surrounded by a distinct ring of dust that contains recently formed, hot blue stars. The outer part consists of unusually smooth, poorly distinguished spiral arms.

<span class="mw-page-title-main">NGC 613</span> Galaxy in the constellation of Sculptor

NGC 613 is a barred spiral galaxy located 67 million light years away in the southern constellation of Sculptor. This galaxy was discovered in 1798 by German-English astronomer William Herschel, then re-discovered and catalogued by Scottish astronomer James Dunlop. It was first photographed in 1912, which revealed the spiral form of the nebula. During the twentieth century, radio telescope observations showed that a linear feature in the nucleus was a relatively strong source of radio emission.

<span class="mw-page-title-main">NGC 4699</span> Spiral galaxy in the constellation Virgo

NGC 4699 is an intermediate spiral galaxy located in the constellation Virgo. It is located at a distance of about 65 million light years from Earth, which, given its apparent dimensions, means that NGC 4699 is about 85,000 light years across. It was discovered by William Herschel in 1786. It is a member of the NGC 4699 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.

<span class="mw-page-title-main">NGC 3631</span> Galaxy in the constellation Ursa Major

NGC 3631 is a spiral galaxy located in the constellation Ursa Major. It is located at a distance of about 35 million light years from Earth, which, given its apparent dimensions, means that NGC 3631 is about 60,000 light years across. It was discovered by William Herschel on April 14, 1789. It is a grand design spiral galaxy seen face on.

<span class="mw-page-title-main">NGC 7469</span> Galaxy located in the constellation Pegasus

NGC 7469 is an intermediate spiral galaxy in the constellation of Pegasus. NGC 7469 is located about 200 million light-years away from Earth, which means, given its apparent dimensions, that NGC 7469 is approximately 90,000 light-years across. It was discovered by William Herschel on November 12, 1784.

<span class="mw-page-title-main">NGC 7184</span> Galaxy in the constellation Aquarius

NGC 7184 is a barred spiral galaxy located in the constellation Aquarius. It is located at a distance of circa 100 million light years from Earth, which, given its apparent dimensions, means that NGC 7184 is about 175,000 light years across. It was discovered by William Herschel on October 28, 1783.

<span class="mw-page-title-main">NGC 7130</span> Galaxy in the constellation Piscis Austrinus

NGC 7130 is a spiral galaxy located in the constellation Piscis Austrinus. It is located at a distance of about 220 million light years from Earth, which, given its apparent dimensions, means that NGC 7130 is about 100,000 light years across. It was discovered by John Herschel on September 25, 1834, and discovered independently by Lewis Swift on September 17, 1897. The location of the galaxy given in the New General Catalogue was off by 30 arcminutes in declination from the location of the galaxy.

<span class="mw-page-title-main">NGC 759</span> Galaxy in the constellation Andromeda

NGC 759 is an elliptical galaxy located 230 million light-years away in the constellation Andromeda. NGC 759 was discovered by astronomer by Heinrich d'Arrest on September 17, 1865. It is a member of Abell 262.

<span class="mw-page-title-main">NGC 931</span> Galaxy in the constellation Triangulum

NGC 931 is a spiral galaxy located in the constellation Triangulum. It is located at a distance of circa 200 million light-years from Earth, which, given its apparent dimensions, means that NGC 931 is about 200,000 light years across. It was discovered by Heinrich d'Arrest on September 26, 1865. It is classified as a Seyfert galaxy.

<span class="mw-page-title-main">NGC 1241</span> Galaxy in the constellation Eridanus

NGC 1241 is a spiral galaxy located in the constellation Eridanus. It is located at a distance of circa 150 million light years from Earth, which, given its apparent dimensions, means that NGC 1241 is about 140,000 light years across. It was discovered by William Herschel on January 10, 1785. It is classified as a Seyfert galaxy.

<span class="mw-page-title-main">NGC 1142</span> Interacting and distorted spiral galaxy in the constellation Cetus

NGC 1142 is a distorted spiral galaxy in the constellation of Cetus. It is located about 370 million light years away from Earth, which means, given its apparent dimensions, that NGC 1142 is approximately 170,000 light years across. It is a type 2 Seyfert galaxy. It interacts with the elliptical galaxy NGC 1141.

<span class="mw-page-title-main">NGC 7625</span> Peculiar galaxy in the constellation Pegasus

NGC 7625, or Arp 212, is a peculiar galaxy in the constellation of Pegasus. It was discovered on October 15, 1784, by William Herschel. In his New General Catalogue (1888), J. L. E. Dreyer described it as pretty bright, considerably small, round, with a suddenly much brighter middle. It is located at an estimated distance of 78 million light-years from the Milky Way galaxy.

<span class="mw-page-title-main">NGC 2445</span> Galaxy in the constellation Lynx

NGC 2445 is a peculiar ring galaxy in the constellation Lynx. The galaxy lies about 200 million light years away from Earth, which means, given its apparent dimensions, that NGC 2445 is approximately 100,000 light years across. It was discovered by Édouard Stephan on January 18, 1877. The galaxy interacts with another galaxy, NGC 2444, and as a result its shape is distorted and new stars are formed.

<span class="mw-page-title-main">NGC 5996</span> Spiral galaxy in the constellation Serpens

NGC 5996 is a barred spiral galaxy in the constellation Serpens. The galaxy lies about 125 million light years away from Earth, which means, given its apparent dimensions, that NGC 5996 is approximately 65,000 light years across. It was discovered by William Herschel on March 21, 1784.

<span class="mw-page-title-main">NGC 3995</span> Galaxy in the constellation Ursa Major

NGC 3995 is a Magellanic spiral galaxy in the constellation Ursa Major. The galaxy lies about 100 million light years away from Earth based on the Tully–Fisher relation, which means, given its apparent dimensions, that NGC 3995 is approximately 80,000 light years across, while based on redshift it lies 170 million light years away. It was discovered by Heinrich d'Arrest on February 5, 1864.

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 7828. Retrieved 2024-03-26.
  2. ↑ "Revised NGC Data for NGC 7828". spider.seds.org. Retrieved 30 March 2024.
  3. ↑ Seligman, Courtney. "NGC 7828 (with NGC 7829 = Arp 144)". Celestial Atlas. Retrieved 19 November 2018.
  4. ↑ Joy, Marshall; Ellis, H. B., Jr.; Tollestrup, E. V.; Brock, D.; Higdon, J. L.; Harvey, P. M. (July 1988). "The genesis of the ring galaxy ARP 144 (NGC 7828/29)". The Astrophysical Journal. 330: L29. Bibcode:1988ApJ...330L..29J. doi:10.1086/185198.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. ↑ Romano, R.; Mayya, Y. D.; Vorobyov, E. I. (1 September 2008). "STELLAR DISKS OF COLLISIONAL RING GALAXIES. I. NEW MULTIBAND IMAGES, RADIAL INTENSITY AND COLOR PROFILES, AND CONFRONTATION WITH N -BODY SIMULATIONS". The Astronomical Journal. 136 (3): 1259–1289. arXiv: 0807.1477 . Bibcode:2008AJ....136.1259R. doi:10.1088/0004-6256/136/3/1259.
  6. ↑ Higdon, James L. (March 1988). "Neutral hydrogen observations of ARP 144". The Astrophysical Journal. 326: 146. Bibcode:1988ApJ...326..146H. doi:10.1086/166075.
  7. ↑ "Bright Supernova pages - Most prolific galaxies". www.rochesterastronomy.org. Retrieved 22 April 2024.
  8. ↑ Kuncarayakti, H.; Maeda, K.; Dessart, L.; Nagao, T.; Fulton, M.; Gutiérrez, C. P.; Huber, M. E.; Young, D. R.; Kotak, R.; Mattila, S.; Anderson, J. P.; Ferrari, L.; Folatelli, G.; Gao, H.; Magnier, E.; Smith, K. W.; Srivastav, S. (1 December 2022). "Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen–Magnesium Layer and Extreme Stripping of the Progenitor*". The Astrophysical Journal Letters. 941 (2): L32. arXiv: 2210.01755 . Bibcode:2022ApJ...941L..32K. doi: 10.3847/2041-8213/aca672 .
  9. ↑ Smith, K. W.; Srivastav, S.; McBrien, O.; Smartt, S. J.; Gillanders, J.; Fulton, M.; Young, D. R.; Shingles, L.; McCollum, M.; Webb, C.; Chen, T. W.; Anderson, J.; Denneau, L.; Heinze, A.; Tonry, J. (2021-06-01). "ATLAS21ptp (AT2021ocs): discovery of a candidate SN in NGC 7828 (89 Mpc)". Transient Name Server AstroNote. 168: 1–168. Bibcode:2021TNSAN.168....1S.
  10. ↑ "SN 2021ocs | Transient Name Server". www.wis-tns.org. Retrieved 2024-04-22.
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