HUBBLE SPACE TELESCOPE OBSERVATIONS OF NGC 6240: A CASE STUDY OF AN ULTRALUMINOUS INFRARED GALAXY WITH OBSCURED ACTIVITY

@article{Gerssen2004HUBBLEST,
  title={HUBBLE SPACE TELESCOPE OBSERVATIONS OF NGC 6240: A CASE STUDY OF AN ULTRALUMINOUS INFRARED GALAXY WITH OBSCURED ACTIVITY},
  author={Joris Gerssen and Roeland P. van der Marel and David J. Axon and J. Christopher Mihos and Lars Hernquist and Joshua E. Barnes},
  journal={The Astronomical Journal},
  year={2004},
  volume={127},
  pages={75-89}
}
We present results from a Hubble Space Telescope (HST) study of the morphology and kinematics of NGC 6240. This merging galaxy with a double nucleus is one of the nearest and best-studied ultraluminous infrared galaxies. HST resolves both nuclei into separate components. The distance between the northern and southern optical/near-infrared components is greater than that observed in radio and X-ray studies, arguing that even in K band we may not be seeing all the way through the dust to the true… 

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References

SHOWING 1-10 OF 53 REFERENCES
Stellar kinematics in the nucleus of NGC 6240: A massive galaxy revealed
We have used the 2.3 micron bandhead of CO to measure the kinematics of the red stellar population in the nucleus of the luminous galaxy NGC 6240, the near-infrared spectrum of which is dominated by
Chandra HRC and HST observations of NGC 6240: resolving the active galactic nucleus and starburst
We present high spatial resolution X-ray Chandra HRC and HSTWFPC2 Ha observations of the prototypical infrared-luminous galaxy NGC 6240. The central region of this system shows a remarkably complex
Gas kinematics and the black hole mass at the center of the radio galaxy NGC 4335
We investigate the kinematics of the central gas disk of the radio-loud elliptical galaxy NGC 4335, derived from Hubble Space Telescope (HST) long-slit spectroscopic observations of Hα + [N II] along
Gasdynamics in the Luminous Merger NGC 6240
We report 05 × 09 resolution, interferometric observations of the 1.3 mm CO J = 2 → 1 line in the infrared luminous galactic merger NGC 6240. About half of the CO flux is concentrated in a rotating
Stellar Dynamics and the Implications on the Merger Evolution in NGC 6240
We report near-infrared integral field spectroscopy of the luminous merging galaxy NGC 6240. Stellar velocities show that the two K-band peaks separated by 16 are the central parts of inclined,
Hα Velocity Mapping of Ultraluminous Infrared Galaxies
We use imaging Fabry-Pec rot observations to explore the dynamical conditions in four southern ultra- luminous infrared galaxies. These galaxies all show morphological and kinematic fea- (L IR Z 1012
Ultramassive (about 10 to the 11th solar mass) dark core in the luminous infrared galaxy NGC 6240
The first complete kinematic maps for the superluminous IR galaxy NGC 6240 are reported. The data reveal two dynamical disks that exhibit radically different rotation and are closely spaced in
The radio emission from the ultraluminous far-infrared galaxy NGC 6240
We present new radio observations of the 'prototypical' ultraluminous far-infrared galaxy NGC 6240, obtained using the Very Large Array (VLA) at lambda = 20 cm in B-configuration and at lambda = 3.6
ASCA spectroscopy of the luminous infrared galaxy NGC 6240: X-ray emission from a starburst and a buried active nucleus
We present an X-ray spectroscopic study of the prototype far-infrared galaxy NGC 6240 from ASCA. The soft X-ray spectrum (below 2 keV) shows clear signatures of thermal emission well described by a
On the nature and implications of starburst-driven galactic superwinds
Optical spectroscopic data are presented on the ionized nebulae associated with 14 galaxies that are strong far-IR emitters. It is found that the data provide both qualitative and quantitative
...
1
2
3
4
5
...