Abstract
view Abstract Citations (32) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Possible Deflection of a Jet by Molecular Clouds in NGC 4258 Plante, R. L. ; Lo, K. Y. ; Roy, Jean-Rene ; Martin, Pierre ; Noreau, Louis Abstract The CO (J = 1 - 0) emission from the central 1' of NGC 4258, a SABbc spiral galaxy with a pair of anomalous arms, was mapped using the Owens Valley millimeter-wave interferometer. The CO emission is found to arise from a ringlike structure, and the bulk of the detected CO appears to coincide with dust features seen in optical images. The CO distribution also appears to confine the inner part of the anomalous Hα arm in NGC 4258. To account for the unusual velocity field of the CO emission, we obtain a simple kinematic model for the motion of the molecular gas that superposes expansion away from the galaxy center on top of the elliptical motion. We identify a feature in the CO emission whose motion is perturbed with respect to this model and suggest that this deviation is evidence for a deflection of the line-emitting jet by a dense molecular cloud. Publication: The Astrophysical Journal Pub Date: November 1991 DOI: 10.1086/170633 Bibcode: 1991ApJ...381..110P Keywords: Interstellar Gas; Molecular Clouds; Radio Jets (Astronomy); Carbon Monoxide; Microwave Interferometers; Millimeter Waves; Astrophysics; GALAXIES: INDIVIDUAL NGC NUMBER: NGC 4258; GALAXIES: INTERSTELLAR MATTER; GALAXIES: JETS; INTERSTELLAR: MOLECULES full text sources ADS | data products SIMBAD (3) NED (1)
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