NGC 3758

Last updated
NGC 3758
NGC 3758 legacy dr10.jpg
DECam image of NGC 3758
Observation data
Constellation Leo
Right ascension 174.12 degrees
Declination 21.59 degrees
Redshift 0.029771
Heliocentric radial velocity 8,909 km/s
Distance 447 Mly (137 Mpc)
Apparent magnitude  (V)14.3
Characteristics
Type Sab pec, Sy1
Size70,000 ly
Notable featuresRare example of binary active galactic nucleus, seyfert galaxy
Other designations
PGC 35905, CGCG 126-110, KUG 1133+218, MCG +04-27-073, IRAS 11338+2152, REIZ 1338, PGC 165579, AKRAI J1136286+213546, RBS 1003, NVSS J113629+213549, SFRS 149, Mrk 739, 1RXS J113629.4+213552, LEDA 35905

NGC 3758 known as the Owl Galaxy, [1] is a type Sb [2] spiral galaxy in the constellation of Leo. [3] [4] It is located 447 million light-years from the solar system and an approximate diameter of 70,000 light-years. [5] NGC 3758 was discovered by Ralph Copeland on March 18, 1874, but also independently discovered by Edouard Stephan ten years later. [1]

Description

MUSE image of NGC 3758, showing [O III] as green (EELR) and H-alpha as red (star-forming regions) NGC 3758 MUSE 2.jpg
MUSE image of NGC 3758, showing [O III] as green (EELR) and H-alpha as red (star-forming regions)

NGC 3758 is classified as a Seyfert 1 type galaxy. [5] [6] It is classified a Markarian galaxy (designated Mrk 739), because compared to other galaxies its nucleus emits excessive amounts of ultraviolet rays. [7] It is a binary active galactic nucleus galaxy, a rare example of a galaxy merger. [8] [9]

Sloan Digital Sky Survey image of NGC 3758. Notice the two luminous cores. NGC 3758 SDSS.jpg
Sloan Digital Sky Survey image of NGC 3758. Notice the two luminous cores.

NGC 3758 is made up of two separate galaxies, NGC 3758W [10] and NGC 3758E. [11] Each of the two galaxies has a supermassive black hole, which is only 11,000 light-years apart and gorging on infalling gas. [12] Both black holes are active, in which large amounts of gas is sent spiraling inward, which it becomes hot and radiates energy. [9] The galaxies are gravitationally bound together and such, their orbits will dynamically decay until their nuclei merge in which the process takes a few billion years. [13]

The galaxy has an appearance of a friendly-looking object complete with two cores as the eyes and a swirling grin. [12] It is possible that binary black holes on the verge of merging in NGC 3758 can turn stars into hypervelocity stars and catapult them out of their host galaxy. [14]

NGC 3758 contains an extended emission-line region (EELR), which was discovered in the Galaxy Zoo project. This EELR could originate from both AGN or from just one. Detailed oxygen [O III] imaging could reveal which AGN is responsible for this EELR. [15] ESO's VLT MUSE instrument is capable of such observations and MUSE did observe NGC 3758 in 2016, [16] but no publication about the MUSE data concerning the EELR exists as of May 2024.

Related Research Articles

<span class="mw-page-title-main">NGC 3862</span> Galaxy in the constellation Leo

NGC 3862 is an elliptical galaxy located 300 million light-years away in the constellation Leo. Discovered by astronomer William Herschel on April 27, 1785, NGC 3862 is an outlying member of the Leo Cluster.

<span class="mw-page-title-main">NGC 7016</span> Galaxy in the constellation Capricornus

NGC 7016 is an elliptical or lenticular galaxy located about 480 million light-years away from Earth in the constellation Capricornus. NGC 7016's calculated velocity is 11,046 km/s. NGC 7016 has an estimated diameter of about 140 thousand light years. NGC 7016 was discovered by American astronomer Francis Preserved Leavenworth on July 8, 1885.

<span class="mw-page-title-main">NGC 4564</span> Elliptical galaxy in the constellation Virgo

NGC 4564 is an elliptical galaxy located about 57 million light-years away in the constellation Virgo. NGC 4564 was discovered by astronomer William Herschel on March 15, 1784. The galaxy is also a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 4660</span> Galaxy in the constellation Virgo

NGC 4660 is an elliptical galaxy located about 63 million light-years away in the constellation Virgo. The galaxy was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.

<span class="mw-page-title-main">NGC 1270</span> Galaxy in the constellation Perseus

NGC 1270 is an elliptical galaxy located about 250 million light-years away in the constellation Perseus. It was discovered by astronomer Heinrich d'Arrest on February 14, 1863. NGC 1270 is a member of the Perseus Cluster and has an estimated age of about 11 billion years. However, Greene et al. puts the age of NGC 1270 at about 15.0 ± 0.50 Gy.

<span class="mw-page-title-main">NGC 1271</span> Galaxy in the constellation Perseus

NGC 1271 is a compact elliptical or lenticular galaxy located about 250 million light-years away in the constellation Perseus. The galaxy was discovered by astronomer Guillaume Bigourdan on November 14, 1884. NGC 1271 is a member of the Perseus Cluster and has a nuclear dust disk in its center. It also has an edge-on, intermediate-scale disk and has a central bulge. Like NGC 1277, NGC 1271 is a candidate "relic galaxy".

<span class="mw-page-title-main">NGC 3840</span> Spiral galaxy in the constellation Leo

NGC 3840 is a spiral galaxy located about 320 million light-years away in the constellation Leo. The galaxy was discovered by astronomer Heinrich d'Arrest on May 8, 1864. NGC 3840 is a member of the Leo Cluster. The galaxy is rich in neutral atomic hydrogen and is not interacting with its environment.

<span class="mw-page-title-main">NGC 3844</span> Galaxy in the constellation Leo

NGC 3844 is a lenticular galaxy located about 320 million light-years away in the constellation Leo. The galaxy was discovered by astronomer Heinrich d'Arrest on May 8, 1864. NGC 3844 is a member of the Leo Cluster and is likely to be a low-luminosity AGN (LLAGN).

<span class="mw-page-title-main">NGC 3860</span> Spiral galaxy in the constellation Leo

NGC 3860 is a spiral galaxy located about 340 million light-years away in the constellation Leo. NGC 3860 was discovered by astronomer William Herschel on April 27, 1785. The galaxy is a member of the Leo Cluster and is a low-luminosity AGN (LLAGN). Gavazzi et al. however classified NGC 3860 as a strong AGN which may have been triggered by a supermassive black hole in the center of the galaxy.

<span class="mw-page-title-main">NGC 3981</span> Spiral galaxy in the constellation Crater

NGC 3981 is an unbarred spiral galaxy located 62 million light-years away in the constellation of Crater. It was discovered on February 7, 1785 by William Herschel.

<span class="mw-page-title-main">NGC 4060</span> Lenticular and LINER galaxy in the constellation Coma Berenices

NGC 4060 is a lenticular galaxy located 320 million light-years away in the constellation Coma Berenices. It was discovered by astronomer Albert Marth on March 18, 1865 and is a member of the NGC 4065 Group which is part of the Coma Supercluster.

<span class="mw-page-title-main">NGC 4092</span> Galaxy in the constellation Coma Berenices

NGC 4092 is a spiral galaxy located 310 million light-years away in the constellation Coma Berenices. It was discovered by astronomer Heinrich d'Arrest on May 2, 1864. NGC 4092 is a member of the NGC 4065 Group and hosts an AGN.

<span class="mw-page-title-main">NGC 4299</span> Spiral galaxy in the constellation Virgo

NGC 4299 is a featureless spiral galaxy located about 55 million light-years away in the constellation Virgo. It was discovered by astronomer William Herschel on March 15, 1784 and is a member of the Virgo Cluster.

<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.

<span class="mw-page-title-main">NGC 4359</span> Galaxy in the constellation Coma Berenices

NGC 4359 is a dwarf barred spiral galaxy seen edge-on that is about 56 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on March 20, 1787. It is a member of the NGC 4274 Group, which is part of the Coma I Group or Cloud.

<span class="mw-page-title-main">NGC 4393</span> Galaxy in the constellation of Coma Berenices

NGC 4393 is a spiral galaxy about 46 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 11, 1785. It is a member of the NGC 4274 Group, which is part of the Coma I Group or Cloud.

<span class="mw-page-title-main">NGC 5683</span> Galaxy in the constellation Boötes

NGC 5683 is a type S0-a lenticular galaxy with a bar located in the Boötes constellation. It is 513 million light-years away from the solar system and has an approximate diameter of 256,000 thousand light-years meaning it is larger compared to the Milky Way. NGC 5683 was discovered by George Johnstone Stoney on April 13, 1850.

<span class="mw-page-title-main">NGC 3745</span>

NGC 3745 is a lenticular galaxy with a bar structure located in the constellation of Leo. NGC 3745 is located 471 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874, but also observed by Hermann Kobold, Lawrence Parsons and John Louis Emil Dreyer.

<span class="mw-page-title-main">NGC 3751</span>

NGC 3751 is a type E-S0 lenticular galaxy located in the Leo constellation. It is located 450 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874.

<span class="mw-page-title-main">NGC 7609</span>

NGC 7609 or known as Arp 150 and HCG 95A, is a large elliptical galaxy located in Pegasus. Its speed relative to the cosmic microwave background is 11,879 km/s, which corresponds the galaxy to be located 554 million light-years away from Earth. NGC 7609 was discovered on October 5, 1864, by Albert Marth and included in Halton Arp's, Atlas of Peculiar Galaxies in galaxies that produces jets.

References

  1. 1 2 "New General Catalog Objects: NGC 3750 - 3799". cseligman.com. Retrieved 2024-04-30.
  2. ↑ "HyperLeda -object description". atlas.obs-hp.fr. Retrieved 2024-04-30.
  3. ↑ Ford, Dominic. "NGC3758 (Galaxy)". In-The-Sky.org. Retrieved 2024-04-30.
  4. ↑ "Revised NGC Data for NGC 3758". spider.seds.org. Retrieved 2024-04-30.
  5. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-30.
  6. ↑ Osterbrock, Donald E.; Shaw, Richard A. (1988). "1988ApJ...327...89O Page 89". The Astrophysical Journal. 327: 89. Bibcode:1988ApJ...327...89O. doi:10.1086/166172 . Retrieved 2024-04-30.
  7. ↑ astrovalleyfield.ca http://astrovalleyfield.ca/AstronomieCompl/NGC%20et%20autres/WolfgangS/N3700_exc_web.htm . Retrieved 2024-04-30.{{cite web}}: Missing or empty |title= (help)
  8. ↑ "Object of the Week, April 1 2018----NGC 3758 "The Smiley Face Galaxy"". www.deepskyforum.com. Retrieved 2024-04-30.
  9. 1 2 Wiessinger, Scott (2011-06-10). "NASA Scientific Visualization Studio | Nearby Galaxy Boasts Two Monster Black Holes, Both Active". NASA Scientific Visualization Studio. Retrieved 2024-04-30.
  10. ↑ "NED Search Results for NGC 3758W". ned.ipac.caltech.edu. Retrieved 2024-04-30.
  11. ↑ "NED Search Results for NGC 3758E". ned.ipac.caltech.edu. Retrieved 2024-04-30.
  12. 1 2 Lazaro, Enrico de (2021-04-27). "Astronomers Observe Nearby Galaxy with Two Bright Cores | Sci.News". Sci.News: Breaking Science News. Retrieved 2024-04-30.
  13. ↑ Mezcua, M.; Lobanov, A. P.; Mediavilla, E.; Karouzos, M. (2014-02-26). "Photometric Decomposition of Mergers in Disk Galaxies". The Astrophysical Journal. 784 (1): 16. arXiv: 1401.5920 . Bibcode:2014ApJ...784...16M. doi:10.1088/0004-637x/784/1/16. ISSN   0004-637X.
  14. ↑ Woo, Marcus. "The Fastest Stars in the Universe May Approach Light Speed". Wired. ISSN   1059-1028 . Retrieved 2024-04-30.
  15. ↑ Keel, William C.; Chojnowski, S. Drew; Bennert, Vardha N.; Schawinski, Kevin; Lintott, Chris J.; Lynn, Stuart; Pancoast, Anna; Harris, Chelsea; Nierenberg, A. M.; Sonnenfeld, Alessandro; Proctor, Richard (2012-02-01). "The Galaxy Zoo survey for giant AGN-ionized clouds: past and present black hole accretion events". Monthly Notices of the Royal Astronomical Society. 420 (1): 878–900. arXiv: 1110.6921 . Bibcode:2012MNRAS.420..878K. doi:10.1111/j.1365-2966.2011.20101.x. ISSN   0035-8711.
  16. ↑ "ESO Dataset - ADP.2016-07-26T07:11:27.413". archive.eso.org. Retrieved 2024-05-01.
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