1997A&A...320..731D


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.06CET01:30:13

1997A&A...320..731D - Astronomy and Astrophysics, volume 320, 731-745 (1997/4-3)

Evidence for a New "Superwind" Galaxy - NGC 4666.

DAHLEM M., PETR M.G., LEHNERT M.D., HECKMAN T.M. and EHLE M.

Abstract (from CDS):

Multi-wavelength observations of the edge-on galaxy NGC 4666 have led to the detection of an outflow cone associated with a galactic superwind, emanating from a central starburst with a radial diameter of about 6.5kpc. The outflow is traced up to 7.5kpc above the plane by optical emission line filaments, nonthermal radio continuum emission, associated magnetic fields perpendicular to the galactic plane, and soft X-ray emission from hot gas. Optical spectroscopy exhibits the kinematic signature of an outflow and the observed line ratios indicate that shock heating is the most likely excitation mechanism for the emission line gas. The outflow is well approximated by a 6.5kpc base (the extent of the central starburst) plus a cone with an opening angle of 30°±10°. In the outer disk of NGC 4666 numerous luminous HII regions were detected, which lead to additional outflows (galactic fountains or chimneys) of gas into the halo. Radially the radio halo is much more extended than the central outflow cone and it has an exponential z-scale height at 1.43GHz of 1.7±0.28kpc. NGC 4666 is in many respects very similar to NGC 4631, another edge-on galaxy with an extended gaseous halo.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 4666 - galaxies: ISM - galaxies: magnetic fields - galaxies: starburst - radio continuum: galaxies

Simbad objects: 17

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Number of rows : 17

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 M 110 GiG 00 40 22.0544552438 +41 41 07.496294862   8.92 8.07     ~ 1229 1
2 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2034 2
3 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11217 1
4 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3002 2
5 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1550 2
6 L 595-22 PM* 05 56 24.7419816722 -27 51 32.362978169   12.31 12.38     sdG 147 0
7 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5430 6
8 QSO B1237-101 QSO 12 39 43.06147929 -10 23 28.6925079   18.08 18.11 17.14   ~ 135 1
9 NGC 4631 GiP 12 42 08.009 +32 32 29.44   9.78 9.19 9.10   ~ 988 2
10 3C 275 rG 12 42 19.6 -04 46 20   21       ~ 113 1
11 NGC 4666 GiP 12 45 08.676 -00 27 42.88   11.7   11.5 10.7 ~ 337 1
12 NGC 4760 GiG 12 53 07.233 -10 29 39.47   13   11.36   ~ 81 1
13 3C 279 Bla 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2752 2
14 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3893 4
15 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3843 2
16 LP 916-15 PM* 15 38 59.6477173130 -28 35 36.970418054   12.19 11.62     A 107 0
17 L 45-135 PM* 18 43 17.7732475175 -79 03 48.423380115   12.25 11.56     ~ 7 0

    Equat.    Gal    SGal    Ecl

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2021.03.06-01:30:13

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