The authors report the results of high resolution and high S/N observations of diffuse interstellar bands (DIBs) towards SN 1987A in the LMC. For the first time...
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PublicaciónDetections of diffuse interstellar bands toward the SN 1987A in the Large Magellanic Cloud
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PublicaciónInteracting binary galaxies. V - NGC 4782/4783 (3C 278): Unbound colliders, not a supermassive pair
The authors have determined the masses and orbital parameters for the galaxies in the strongly interacting binary NGC 4782/4783 by finding a numerical...
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PublicaciónInterpreting asymmetric line profiles in merger remnants
Absorption line profile asymmetries in ellipticals with peculiar core kinematics, and their role as diagnostics of mergers, are analyzed using self-consistent...
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PublicaciónInterstellar and intergalactic gas in the direction of SN 1993J in M81
During the first few nights following its discovery, we observed the interstellar Ca II and Na I lines towards supernova 1993J at high spectral resolution (full...
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PublicaciónLong slit spectroscopy of NGC 5506
The galaxy NGC 5506 hosts an active nucleus, that presents characteristics that are intermediate between Sy1 and Sy2. We discuss long slit spectra of NGC 5506...
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PublicaciónLTE polarized radiative transfer through interlaced atmospheres
We show that the solution of the radiative transfer equation (RTE) through a line of sight that pierces several times two alternate atmospheres can be obtained...
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PublicaciónObserved differences between large and small sunspots
We confirm recent results about the differences in temperature and magnetic field strength between the umbra of large and small sunspots. Five Stokes I- and V...
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PublicaciónParameter estimates for the orbits of M 32 and NGC 205 about the centre of mass of the M 31 system
The authors used simple kinematic, dynamic and geometrical assumptions to infer the orbital parameters of M32 and NGC 205 about M31. They find that both...
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PublicaciónSolar core rotation
Data from solar line of sight velocity measurements are presented to demonstrate the existence of a synodic signal with a 6.5 m/sec amplitude. Recordings of...