Discovered in 1979 by Kotanyi et al., NGC 708 has a thin dust lane[16] with an irregular structure.[17][18][19][5] Besides the dust lane, there are also patches of dust that cross the nucleus.[17][18][19] These features are oriented nearly perpendicular to the radio emission of the galaxy.[20][21][13][8][6] The lane appears to be a nearly edge-on dust disk[22] with a length of 16,000
ly (5
kpc).[23]
The supermassive black hole is powering the radio jets and lobes in the galaxy.[10]
Radio morphology
NGC 708 contains two radio jets[23] that are mildly bent[23][25] and extend into ''s'' shaped[8][12] double radio lobes[10][11][13][12] with a total length of 200,000
ly (60
kpc).[12]
Chandra observations have shown that the lobes have created a cavity in the intracluster medium of Abell 262.[11]
Possible interaction
NGC 708 may be interacting with
NGC 705 which lies about 67,000
ly (20.6
kpc) to the south-west.[21]
^
abcdDurret, F. (1994-05-01). "Nuclear and extranuclear ionized gas in nine Seyfert 2 galaxies". Astronomy and Astrophysics Supplement Series. 105: 57–66.
Bibcode:
1994A&AS..105...57D.
ISSN0365-0138.
^Kotanyi, C. G.; Ekers, R. D. (1979-03-01). "Radio galaxies with dust lanes". Astronomy and Astrophysics. 73: L1–L3.
Bibcode:
1979A&A....73L...1K.
ISSN0004-6361.
^
abCapetti, A.; de Ruiter, H. R.; Fanti, R.;
Morganti, R.; Parma, P.; Ulrich, M.-H. (2000-09-05). "The HST snapshot survey of the B2 sample of low luminosity radio-galaxies: a picture gallery". Astronomy and Astrophysics. 362: 871.
arXiv:astro-ph/0009056.
Bibcode:
2000A&A...362..871C.
^Parma, P.; de Ruiter, H. R.; Fanti, C.; Fanti, R. (1986-04-01). "VLA observations of low luminosity radio galaxies. I – Sources with angular size smaller than two arcminutes". Astronomy and Astrophysics Supplement Series. 64: 135–171.
Bibcode:
1986A&AS...64..135P.
ISSN0365-0138.
^
abcdMcCarthy, P. J.; van Bruegel, W. J. M.; Heckman, T.; Miley, G. K.; Filippenko, A. V. (1985-09-01). "Optical and Radio Observations of the Cooling-Flow Galaxy NGC 708". Bulletin of the American Astronomical Society. 17: 865.
Bibcode:
1985BAAS...17..865M.
^Sofue, Yoshiaki; Wakamatsu, Ken-Ichi (August 1993). "CO in elliptical galaxies and the universal CO-to-dust ratio". Publications of the Astronomical Society of Japan. 45 (4–6264): 529–538.
Bibcode:
1993PASJ...45..529S.
Discovered in 1979 by Kotanyi et al., NGC 708 has a thin dust lane[16] with an irregular structure.[17][18][19][5] Besides the dust lane, there are also patches of dust that cross the nucleus.[17][18][19] These features are oriented nearly perpendicular to the radio emission of the galaxy.[20][21][13][8][6] The lane appears to be a nearly edge-on dust disk[22] with a length of 16,000
ly (5
kpc).[23]
The supermassive black hole is powering the radio jets and lobes in the galaxy.[10]
Radio morphology
NGC 708 contains two radio jets[23] that are mildly bent[23][25] and extend into ''s'' shaped[8][12] double radio lobes[10][11][13][12] with a total length of 200,000
ly (60
kpc).[12]
Chandra observations have shown that the lobes have created a cavity in the intracluster medium of Abell 262.[11]
Possible interaction
NGC 708 may be interacting with
NGC 705 which lies about 67,000
ly (20.6
kpc) to the south-west.[21]
^
abcdDurret, F. (1994-05-01). "Nuclear and extranuclear ionized gas in nine Seyfert 2 galaxies". Astronomy and Astrophysics Supplement Series. 105: 57–66.
Bibcode:
1994A&AS..105...57D.
ISSN0365-0138.
^Kotanyi, C. G.; Ekers, R. D. (1979-03-01). "Radio galaxies with dust lanes". Astronomy and Astrophysics. 73: L1–L3.
Bibcode:
1979A&A....73L...1K.
ISSN0004-6361.
^
abCapetti, A.; de Ruiter, H. R.; Fanti, R.;
Morganti, R.; Parma, P.; Ulrich, M.-H. (2000-09-05). "The HST snapshot survey of the B2 sample of low luminosity radio-galaxies: a picture gallery". Astronomy and Astrophysics. 362: 871.
arXiv:astro-ph/0009056.
Bibcode:
2000A&A...362..871C.
^Parma, P.; de Ruiter, H. R.; Fanti, C.; Fanti, R. (1986-04-01). "VLA observations of low luminosity radio galaxies. I – Sources with angular size smaller than two arcminutes". Astronomy and Astrophysics Supplement Series. 64: 135–171.
Bibcode:
1986A&AS...64..135P.
ISSN0365-0138.
^
abcdMcCarthy, P. J.; van Bruegel, W. J. M.; Heckman, T.; Miley, G. K.; Filippenko, A. V. (1985-09-01). "Optical and Radio Observations of the Cooling-Flow Galaxy NGC 708". Bulletin of the American Astronomical Society. 17: 865.
Bibcode:
1985BAAS...17..865M.
^Sofue, Yoshiaki; Wakamatsu, Ken-Ichi (August 1993). "CO in elliptical galaxies and the universal CO-to-dust ratio". Publications of the Astronomical Society of Japan. 45 (4–6264): 529–538.
Bibcode:
1993PASJ...45..529S.