DZ
DefZone.Net

Kien thuc cong nghe & giai tri

Wiki Article

NGC 7582

Nguồn dữ liệu từ Wikipedia, hiển thị bởi DefZone.Net

Xem trên WikipediaBài ngẫu nhiên khác
NGC 7582
Hubble Space Telescope image of NGC 7582
Observation data (J2000 epoch)
ConstellationGrus
Right ascension23h 18m 23.5s[1]
Declination−42° 22′ 14″[1]
Redshift0.005254[1]
Distance69.1 ± 6.719 Mly
(21.2 ± 2.060 Mpc)[1]
Apparent magnitude (V)11.37[1]
Characteristics
TypeSB(s)ab[1]
Size331,220 ly (101.60 kpc) (estimated)[1]
Apparent size (V)5.0' × 2.1'[1]
Other designations
2MASX J23182362-4222140, MCG -07-47-029, PGC 071001[1]

NGC 7582 is a barred spiral galaxy located about 70 million light years away from Earth in the constellation of Grus. The galaxy has a diameter of about 330,000 light years. It is classified as a Seyfert 2 galaxy. This galaxy is located in the upper middle west part of the Virgo Supercluster.[1]

The galaxy is a Hubble type SB(s)ab. It has an angular size of 5.0' × 2.1' and an apparent magnitude of 11.37.[1]

Characteristics

[edit]

Central region

[edit]

Nuclear region

[edit]
Image showing the biconical ionized outflow of NGC 7582.

The nuclear region of NGC 7582 is complex with an estimated total mass of about 3×10−3 M☉. It is highly inclined being at an angle of 58°. The galaxy hosts an active galactic nucleus (AGN) that is driven by biconical ionized outflow. The supermassive black hole at the core has a mass of 5.5+2.6
−1.9×107 M☉.[2][3]

Circumnuclear region

[edit]

Surrounding the nucleus is an circumnuclear star-forming disc with a total mass of around 3×106 M☉. The disc has a radius of approximately 190-200 parsecs with a asymmetric ring located at a distance of around 30-40 parsecs. Bright emission regions are also seen which are caused by star formation which in turn is powered by a ring of molecular gas.[4][5] The star formation rate in this galaxy is around 0.23-0.28 solar masses a year. This region is young being around 5 million years old. Temperatures of circumnuclear dust is around 1050 Kelvin at distances closer than 25 parsecs from the nucleus.[3][6]

It seems that the outflow of gas does not originate from the AGN but instead originates from gas in the circumnuclear region. This gas is being pushed away from the galaxy by outflow from the nuclear region.[3][6]

Central bar

[edit]

The central bar of NGC 7582 has a prominent boxy-shaped morphology. The central bar and its box-shaped was discovered in 1997 by Quillen et al. (1997). The study showed that the boxiness of NGC 7582 was prominent even compared to other galaxies with a box-shaped central bar. The bar is dusty and is similar to the central bar of NGC 7552.[7][8]

[edit]

References

[edit]
  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 7582. Retrieved January 7, 2017.
  2. ^ Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID 89905.
  3. ^ a b c Riffel, Rogemar A.; Storchi-Bergmann, Thaisa; Dors, Oli L.; Winge, Claudia (2009-03-01). "AGN-Starburst connection in NGC7582: Gemini near-infrared spectrograph integral field unit observations". Monthly Notices of the Royal Astronomical Society. 393 (3): 783–797. arXiv:0811.2327. Bibcode:2009MNRAS.393..783R. doi:10.1111/j.1365-2966.2008.14250.x.
  4. ^ Alonso-Herrero, A.; Pereira-Santaella, M.; Rigopoulou, D.; García-Bernete, I.; García-Burillo, S.; Domínguez-Fernández, A. J.; Combes, F.; Davies, R. I.; Díaz-Santos, T.; Esparza-Arredondo, D.; González-Martín, O.; Hernán-Caballero, A.; Hicks, E. K. S.; Hönig, S. F.; Levenson, N. A. (2020-07-01). "Cold molecular gas and PAH emission in the nuclear and circumnuclear regions of Seyfert galaxies". Astronomy & Astrophysics. 639: A43. arXiv:2005.11959. Bibcode:2020A&A...639A..43A. doi:10.1051/0004-6361/202037642. ISSN 0004-6361.
  5. ^ García-Burillo, S.; Alonso-Herrero, A.; Almeida, C. Ramos; González-Martín, O.; Combes, F.; Usero, A.; Hönig, S.; Querejeta, M.; Hicks, E. K. S.; Hunt, L. K.; Rosario, D.; Davies, R.; Boorman, P. G.; Bunker, A. J.; Burtscher, L. (2021-08-01). "The Galaxy Activity, Torus, and Outflow Survey (GATOS) - I. ALMA images of dusty molecular tori in Seyfert galaxies". Astronomy & Astrophysics. 652: A98. arXiv:2104.10227. Bibcode:2021A&A...652A..98G. doi:10.1051/0004-6361/202141075. ISSN 0004-6361.
  6. ^ a b Oscar Veenema, Niranjan Thatte, Dimitra Rigopoulou, Ismael García-Bernete, Almudena Alonso-Herrero, Miguel Pereira-Santaella, Anelise Audibert, Enrica Bellocchi, Andrew J Bunker, Steph Campbell, Francoise Combes, Richard I Davies, Fergus R Donnan, Santiago García-Burillo, Omaira Gonzalez Martin, Laura Hermosa Muñoz, Erin K S Hicks, Sebastian F Hoenig, Alvaro Labiano, Nancy A Levenson, Chris Packham, Cristina Ramos Almeida, Claudio Ricci, Rogemar A Riffel, David Rosario, Taro Shimizu, Lulu Zhang, Decoupling the AGN outflow and star-forming disc kinematics in the nuclear region of NGC 7582 with JWST NIRSpec and MIRI/MRS, Monthly Notices of the Royal Astronomical Society, Volume 548, Issue 4, June 2026, stag785, https://doi.org/10.1093/mnras/stag785
  7. ^ Quillen, A. C.; Kuchinski, L. E.; Frogel, J. A.; DePoy, D. L. (1997-05-20). (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Citoid/WMF (mailto:noc@wikimedia.org)&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJ1em14IjoiN2Y5MDAwYTQ0Y2YxMjktNTc2Yi00NjVlLWEyMzQtZDEwMDdjYmY0MzllMS0xNzc4NTIwNTk4MDE0MC02ZTVlOGJjNWY0MTUyOTRmMTAiLCJfX3V6bWYiOiI3ZjkwMDA5NjYzNmNlNy00ODJkLTQ5MTItYjliNC01ZDUyZTJkMWVjM2QxLTE3Nzg1MjA1OTgwMTQwLTAwM2M1ZTk3ZThlYmQ1ZDU4MDkxMCJ9 "Discovery of a Boxy Peanut-shaped Bulge in the Near-Infrared". The Astrophysical Journal. 481 (1): 179–185. arXiv:astro-ph/9609042. Bibcode:1997ApJ...481..179Q. doi:10.1086/304054. ISSN 0004-637X. {{cite journal}}: Check |url= value (help)
  8. ^ Buta, Ronald J.; Knapen, Johan H.; Elmegreen, Bruce G.; Salo, Heikki; Laurikainen, Eija; Elmegreen, Debra Meloy; Puerari, Ivânio; Block, David L. (2009-04-07). (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Citoid/WMF (mailto:noc@wikimedia.org)&ssu=&ssv=&ssw=&ssx=eyJ1em14IjoiN2Y5MDAwMTYxN2IyZDQtNzg3NC00YzU5LTkwYjYtZmY2ZDIzNzA0NGNkMS0xNzc4NTIwODg5NjgwMC1kNjM4MjExNzg0MjMzNmJiMTAiLCJyZCI6ImlvcC5vcmciLCJfX3V6bWYiOiI3ZjkwMDA5ZDcwMjk0Ni04N2U5LTQ4ZWMtOTVmNS0yZDJkZTU5N2ZkZTMxLTE3Nzg1MjA4ODk2ODAwLTAwM2YyMzUwZjkxZWI4OWMxYmMxMCJ9 "Do Bars Drive Spiral Density Waves?". The Astronomical Journal. 137 (5): 4487–4516. arXiv:0903.2008. Bibcode:2009AJ....137.4487B. doi:10.1088/0004-6256/137/5/4487. ISSN 0004-6256. {{cite journal}}: Check |url= value (help)
[edit]
  • Wikimedia Commons logo Media related to NGC 7582 at Wikimedia Commons
Stub icon

This barred spiral galaxy article is a stub. You can help Wikipedia by adding missing information.