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Structure and kinematics of candidate double-barred galaxies
A. V. Moiseev, J. R. Valdes, V. H. Chavushyan
Results of optical and NIR spectral and photometric observations of a sample of candidate double-barred galaxies are presented. Velocity fields and velocity dispersion maps of star…
The peculiar circumstellar environment of NGC2024-IRS2
A. Lenorzer, A. Bik, A. de Koter +5
We re-examine the nature of NGC2024-IRS2 in light of the recent discovery of the late O-type star, IRS2b, located 5 arcsec from IRS2. Using L-band spectroscopy, we set a lower limi…
Mapping of Large Scale 158 micron [CII] Line Emission: Orion A
B. Mookerjea, S. K. Ghosh, H. Kaneda +5
We present the first results of an observational programme undertaken to map the fine structure line emission of singly ionized carbon ([CII] 157.7409 micron) over extended regions…
Crab Pulsar Photometry and the Signature of Free Precession
Andrej Cadez, Simon Vidrih, Mirjam Galicic +1
Optical photometry for the pulsar PSR0531+21 has been extended with new observations that strengthen evidence for a previously observed 60 seconds periodicity. This period is found…
Stroboscopic optical observations of the Crab pulsar
Simon Vidrih, Andrej Cadez, Mirjam Galicic +1
Photometric data of the Crab pulsar, obtained in stroboscopic mode over a period of more than eight years, are presented here. The applied Fourier analysis reveals a faint 60 secon…