请输入您要查询的百科知识：

　

词条 NGC 708
释义

  1. Dust Lane

  2. Supermassive black hole

  3. Radio Morphology

  4. Possible interaction

  5. See also

  6. References

  7. External links

{{Infobox Galaxy
| name = NGC 708
| image = PanSTARRS NGC 708.jpg
| upright = 1.15
|caption= PanSTARRS image of NGC 708. Part of NGC 705 can be seen at the lower-right of the image.
| constellation name = Andromeda
| epoch = J2000
| type = E[1]
| ra = {{RA|01|52|46.5}}[1]
| dec = {{DEC|36|09|07}}[1]
| dist_ly = {{convert|73.3|Mpc|Mly|abbr=on|lk=on|order=flip}}[1]
| z = 0.016195[1]
|h_radial_v = 4855 km/s[1]
| group_cluster = Abell 262
| appmag_v = 13.70[1]
| size_v = 3.0 x 2.5[1]
|size=~{{convert|62|kpc|ly|abbr=on|lk=on|order=flip}} (estimated)[1]
| names = CGCG 522-39, MCG 6-5-31, PGC 6962, UGC 1348, B2 0149+35[1]
}}NGC 708 is an elliptical galaxy located 240 million light-years away[2] in the constellation Andromeda and was discovered by astronomer William Herschel on September 21, 1786.[3] It is classified as a cD galaxy[4][5] and is the brightest member of Abell 262.[6][7] NGC 708 is a weak[17] FR I radio galaxy[8][9][10][11][22] and is also classfied as a type 2 seyfert galaxy.[17][12][2]

NGC 708 is surrounded by 4700 globular clusters.[13]

Dust Lane

Discovered in 1979 by Kotanyi et al., NGC 708 has a thin dust lane[14] with an irregular structure.[15][16][17][5] Besides the dust lane, there are also patches of dust that cross the nucleus.[15][16][17] These features are oriented nearly perpendicular to the radio emission of the galaxy.[18][19][20][21][6] The lane appears to be a nearly edge-on dust disk[22] with a length of {{convert|5|kpc|ly|abbr=on|lk=on|order=flip}}.[23]

The dust lane appears to have formed from a cooling accretion flow of Intracluster medium (ICM) onto NGC 708.[23]

Supermassive black hole

NGC 708 has a supermassive black hole with an estimated mass of ({{Val|2.9|e=8}} M☉) (108.46) {{solar mass|link=yes}}.[24][9]

The supermassive black hole is powering the radio jets and lobes in the galaxy.[9]

Radio Morphology

NGC 708 contains two radio jets[23] that are mildly bent[23][25] and extend into ''s'' shaped[21][11] double radio lobes[9][10][20][10][11] with a total length of {{convert|19|kpc|ly|abbr=on|lk=on|order=flip}}.[10][11]

Chandra observations have shown that the lobes have created a cavity in the Intracluster medium (ICM) of Abell 262.[10]

Possible interaction

NGC 708 may be interacting with NGC 705 which lies about {{convert|20.6|kpc|ly|abbr=on|lk=on|order=flip}} to the south-west.[19]

See also

  • List of NGC objects (1–1000)
  • Abell 262
  • Messier 87
  • NGC 1275

References

1. ^1 2 3 4 5 6 7 8 9 {{cite web | title=NASA/IPAC Extragalactic Database | work=Results for NGC 708 | url=http://nedwww.ipac.caltech.edu/ | accessdate=2018-12-22}}
2. ^1 {{Cite web|url=https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+708&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES|title=Your NED Search Results|website=ned.ipac.caltech.edu|access-date=2018-12-23}}
3. ^{{Cite web|url=https://cseligman.com/text/atlas/ngc7.htm#708|title=New General Catalog Objects: NGC 700 - 749|last=|first=|date=|website=cseligman.com|language=en-US|archive-url=|archive-date=|dead-url=|access-date=2018-11-21}}
4. ^{{Cite journal|last=Lyskova|first=N.|last2=Churazov|first2=E.|last3=Moiseev|first3=A.|last4=Sil'chenko|first4=O.|last5=Zhuravleva|first5=I.|date=2014-05-15|title=Stellar kinematics of X-ray bright massive elliptical galaxies|arxiv=1404.2729|journal=Monthly Notices of the Royal Astronomical Society|volume=441|issue=3|pages=2013–2033|doi=10.1093/mnras/stu717|issn=0035-8711|bibcode=2014MNRAS.441.2013L}}
5. ^1 {{Cite journal|last=Goullaud|first=Charles F.|last2=Jensen|first2=Joseph B.|last3=Blakeslee|first3=John P.|last4=Ma|first4=Chung-Pei|last5=Greene|first5=Jenny E.|last6=Thomas|first6=Jens|date=2018-03-20|title=The MASSIVE Survey. IX. Photometric Analysis of 35 High-mass Early-type Galaxies with HST WFC3/IR|journal=The Astrophysical Journal|volume=856|issue=1|pages=11|doi=10.3847/1538-4357/aab1f3|issn=1538-4357|bibcode=2018ApJ...856...11G|arxiv=1801.08245}}
6. ^1 {{Cite journal|last=West|first=M. J.|date=1994-05-01|title=Anisotropic Mergers at High Redshifts - the Formation of CD Galaxies and Powerful Radio Sources|bibcode=1994MNRAS.268...79W|journal=Monthly Notices of the Royal Astronomical Society|volume=268|pages=79–102|doi=10.1093/mnras/268.1.79|issn=0035-8711}}
7. ^{{Cite web|url=http://simbad.u-strasbg.fr/simbad/|title=NGC 708|last=|first=|date=|website=SIMBAD Astronomical Database|archive-url=|archive-date=|dead-url=|access-date=2018-12-23}}
8. ^{{cite journal|last=Parma|first=P.|last2=Morganti|first2=R.|last3=Fanti|first3=R.|last4=Ruiter|first4=De|last5=R|first5=H.|last6=Chiaberge|first6=M.|last7=Celotti|first7=A.|last8=Capetti|first8=A.|date=2001-12-06|title=The HST survey of the B2 sample of radio-galaxies: optical nuclei and the FRI/BL Lac unified scheme|journal=Astronomy & Astrophysics|volume=383|pages=104–111|arxiv=astro-ph/0112151|language=en|doi=10.1051/0004-6361:20011714|bibcode=2002A&A...383..104C}}
9. ^1 2 3 {{cite journal|last=Hu|first=C.|last2=Wang|first2=J.-M.|date=2005-08-01|title=Captures of Red Giant Stars by Black Holes in Elliptical Galaxies: Feedback to the Hot Gas|journal=The Astrophysical Journal|volume=630|issue=2|pages=L125–L128|arxiv=astro-ph/0508021|language=en|doi=10.1086/491670|bibcode=2005ApJ...630L.125W}}
10. ^1 2 3 4 {{cite journal|last=Clarke|first=T. E.|last2=McNamara|first2=Brian R.|last3=Sarazin|first3=Craig L.|last4=Blanton|first4=Elizabeth L.|date=2004-05-21|title=Chandra Observation of the Central Region of the Cooling Flow Cluster Abell 262: A Radio Source that is a Shadow of its Former Self?|journal=The Astrophysical Journal|volume=612|issue=2|pages=817–824|arxiv=astro-ph/0405425|language=en|doi=10.1086/422677|bibcode=2004ApJ...612..817B}}
11. ^1 2 3 {{cite journal|last=Kassim|first=N. E.|last2=Douglass|first2=E. M.|last3=Gopal-Krishna|last4=Anderson|first4=L. D.|last5=Sarazin|first5=C. L.|last6=Blanton|first6=E. L.|last7=Clarke|first7=T. E.|date=2009-03-04|title=Tracing Multiple Generations of AGN Feedback in the Core of Abell 262|journal=The Astrophysical Journal|volume=697|issue=2|pages=1481–1492|arxiv=0903.0844|language=en|doi=10.1088/0004-637X/697/2/1481|bibcode=2009ApJ...697.1481C}}
12. ^{{Cite journal|last=Reddy|first=Naveen A.|last2=Yun|first2=Min S.|date=2004-01-10|title=Radio and Far-Infrared Emission as Tracers of Star Formation and AGN in Nearby Cluster Galaxies|arxiv=astro-ph/0309649|journal=The Astrophysical Journal|volume=600|issue=2|pages=695–715|doi=10.1086/379871|issn=0004-637X|bibcode=2004ApJ...600..695R}}
13. ^{{Cite journal|last=Harris|first=William E.|last2=Harris|first2=Gretchen L. H.|last3=Alessi|first3=Matthew|date=2013-07-09|title=A Catalog of Globular Cluster Systems: What Determines the Size of a Galaxy's Globular Cluster Population?|arxiv=1306.2247|journal=The Astrophysical Journal|volume=772|issue=2|pages=82|doi=10.1088/0004-637X/772/2/82|issn=0004-637X|bibcode=2013ApJ...772...82H}}
14. ^{{Cite journal|last=Kotanyi|first=C. G.|last2=Ekers|first2=R. D.|date=1979-03-01|title=Radio galaxies with dust lanes|bibcode=1979A&A....73L...1K|journal=Astronomy and Astrophysics|volume=73|pages=L1–L3|issn=0004-6361}}
15. ^1 {{cite journal|last=Capetti|first=A.|last2=de Ruiter|first2=H. R.|last3=Fanti|first3=R.|last4=Morganti|first4=R.|last5=Parma|first5=P.|last6=Ulrich|first6=M.-H.|date=2000-09-05|title=The HST snapshot survey of the B2 sample of low luminosity radio-galaxies: a picture gallery|journal=Astronomy and Astrophysics|volume=362|pages=871|arxiv=astro-ph/0009056|bibcode=2000A&A...362..871C}}
16. ^1 {{Cite journal|last=Taylor|first=G. B.|last2=Giroletti|first2=M.|last3=Giovannini|first3=G.|last4=Liuzzo|first4=E.|date=2009-10-01|title=The Bologna complete sample of nearby radio sources - II. Phase referenced observations of faint nuclear sources|journal=Astronomy & Astrophysics|language=en|volume=505|issue=2|pages=509–520|doi=10.1051/0004-6361/200912586|issn=1432-0746|bibcode=2009A&A...505..509L|arxiv=0908.4391}}
17. ^1 {{Cite journal|last=Taylor|first=G. B.|last2=Capetti|first2=A.|last3=Giroletti|first3=M.|last4=Giovannini|first4=G.|last5=Buttiglione|first5=S.|last6=Liuzzo|first6=E.|date=2013-02-01|title=Compact sources in the Bologna Complete Sample: high-resolution VLA observations and optical data|journal=Astronomy & Astrophysics|language=en|volume=550|pages=A76|doi=10.1051/0004-6361/201220012|issn=1432-0746|bibcode=2013A&A...550A..76L|arxiv=1209.4204}}
18. ^{{Cite journal|last=Parma|first=P.|last2=de Ruiter|first2=H. R.|last3=Fanti|first3=C.|last4=Fanti|first4=R.|date=1986-04-01|title=VLA observations of low luminosity radio galaxies. I - Sources with angular size smaller than two arcminutes|bibcode=1986A&AS...64..135P|journal=Astronomy and Astrophysics Supplement Series|volume=64|pages=135–171|issn=0365-0138}}
19. ^1 {{Cite journal|last=Colina|first=L.|last2=Perez-Fournon|first2=I.|date=January 1990|title=Optical observations of galaxies containing radio jets - A catalog of sources with redshift smaller than 0.15|bibcode=1990ApJS...72...41C|journal=The Astrophysical Journal Supplement Series|language=en|volume=72|pages=41–59|doi=10.1086/191408|issn=0067-0049}}
20. ^1 2 {{Cite journal|last=Taylor|first=G. B.|last2=Giroletti|first2=M.|last3=Giovannini|first3=G.|last4=Liuzzo|first4=E.|date=2010-06-01|title=Parsec-scale properties of brightest cluster galaxies|journal=Astronomy & Astrophysics|language=en|volume=516|pages=A1|doi=10.1051/0004-6361/200913888|issn=1432-0746|bibcode=2010A&A...516A...1L|arxiv=1002.1380}}
21. ^1 2 3 {{Cite journal|last=Durret|first=F.|date=1994-05-01|title=Nuclear and extranuclear ionized gas in nine Seyfert 2 galaxies|bibcode=1994A&AS..105...57D|journal=Astronomy and Astrophysics Supplement Series|volume=105|pages=57–66|issn=0365-0138}}
22. ^{{Cite journal|last=Wegner|first=G. A.|last2=Corsini|first2=E. M.|last3=Thomas|first3=J.|last4=Saglia|first4=R. P.|last5=Bender|first5=R.|last6=Pu|first6=S. B.|date=2012|title=Further Evidence for Large Central Mass-to-light Ratios in Early-type Galaxies: The Case of Ellipticals and Lenticulars in the A262 Cluster|url=http://stacks.iop.org/1538-3881/144/i=3/a=78|journal=The Astronomical Journal|language=en|volume=144|issue=3|pages=78|doi=10.1088/0004-6256/144/3/78|issn=1538-3881|bibcode=2012AJ....144...78W|arxiv=1206.5768}}
23. ^1 2 3 {{Cite journal|last=McCarthy|first=P. J.|last2=van Bruegel|first2=W. J. M.|last3=Heckman|first3=T.|last4=Miley|first4=G. K.|last5=Filippenko|first5=A. V.|date=1985-09-01|title=Optical and Radio Observations of the Cooling-Flow Galaxy NGC 708|journal=Bulletin of the American Astronomical Society|bibcode=1985BAAS...17..865M|volume=17|pages=865}}
24. ^{{Cite journal|last=Woo|first=Jong-Hak|last2=Urry|first2=C. Megan|date=2002|title=Active Galactic Nucleus Black Hole Masses and Bolometric Luminosities|url=http://stacks.iop.org/0004-637X/579/i=2/a=530|journal=The Astrophysical Journal|language=en|volume=579|issue=2|pages=530–544|doi=10.1086/342878|issn=0004-637X|bibcode=2002ApJ...579..530W|arxiv=astro-ph/0207249}}
25. ^{{Cite journal|last=Sofue|first=Yoshiaki|last2=Wakamatsu|first2=Ken-Ichi|date=August 1993|title=CO in elliptical galaxies and the universal CO-to-dust ratio|journal=Publications of the Astronomical Society of Japan|volume=45|issue=4–6264|pages=529–538|bibcode=1993PASJ...45..529S}}

External links

{{Commons}}{{WikiSky}}{{Ngc10}}

10 : NGC objects|Principal Galaxies Catalogue objects|Andromeda (constellation)|Astronomical objects discovered in 1786|Elliptical galaxies|Abell 262|UGC objects|Seyfert galaxies|Radio galaxies|Discoveries by William Herschel
随便看

　

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

　

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间：2024/9/24 0:22:45