Four planetary nebulae (PNe) with conspicuous point-symmetric morphology are studied in this paper through high-quality imagery and long-slit echelle...
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PublicaciónThe Kinematics of Point-symmetric Planetary Nebulae
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PublicaciónThe kinematics of the extended gas in the Seyfert galaxy NGC 3516
Long-slit spectroscopy of the extended gas in the Seyfert galaxy NGC 3516 reveals considerable substructure in the narrow emission lines with several...
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PublicaciónThe Kinematics of the HH 399 Jet in the Trifid Nebula
We have studied the kinematics of the HH 399 jet, which was recently discovered in the Trifid Nebula. The data were obtained in the [N II] 6583 Å line with a...
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PublicaciónThe Kinematics of the Ionized and Molecular Hydrogen in the Starburst Galaxy NGC 253
Near-infrared H2 1-0 5(1) and Brγ velocity curves along the major axis of NGC 253 have revealed a central velocity gradient that is 7 times steeper than that...
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PublicaciónThe kinematics of the quadrupolar nebula M 1-75 and the identification of its central star
Context. The link between how bipolar planetary nebulae are shaped and their central stars is still poorly understood. Aims: This paper investigates the...
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PublicaciónThe kinematics of water masers in the stellar molecular outflow source, IRAS 19134+2131
Using the Very Large Array (VLA) and the Very Long Baseline Array (VLBA), we have observed water maser emission in the proto-planetary nebula candidate IRAS...
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PublicaciónThe kinematics of young and old stellar populations in nuclear rings of MUSE TIMER galaxies
Context. Studying the stellar kinematics of galaxies is a key tool in the reconstruction of their evolution. However, the current measurements of the stellar...
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PublicaciónThe KISS Experiment
Mapping millimetre continuum emission has become a key issue in modern multi-wavelength astrophysics. In particular, spectrum imaging at low-frequency...
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PublicaciónThe Kormendy relation for early-type galaxies. Dependence on the magnitude range
Aims: Previous studies have indicated that faint and bright early-type galaxies (ETGs) present different coefficients and dispersions for their Kormendy...