Search Publications
Identification of V735 Sgr as an Active Herbig Ae/Be Object
Udalski, A.; Pietrukowicz, P.; Angeloni, R. +1 more
V735 Sgr was known as an enigmatic star with rapid brightness variations. Long-term OGLE photometry, brightness measurements in infrared bands, and recently obtained moderate resolution spectrum from the 6.5-m Magellan telescope show that this star is an active young stellar object of Herbig Ae/Be type.
An analysis of four stellar rings
Leschinski, Kieran; Paunzen, Ernst; Gütl-Wallner, Anna +9 more
Spectroscopic Investigations of Galactic Clusters with Associated Cepheid Variables. II. NGC 5662 and V Cen
Kniazev, A. Yu.; Miroshnichenko, A. S.; Mishenina, T. V. +4 more
We present the results of a spectroscopic and photometric investigation of 15 objects from the open cluster NGC 5662, which contains the Cepheid V Cen. Besides the Cepheid, we studied one G-supergiant, two K-giants, four B-giants, and seven main sequence stars. Radial velocities (RV), v sin i, Teff, log g, and [Fe/H] were determined usi…
A key piece in the exoplanet puzzle
Díaz, Rodrigo F.
The detection of a low-mass exoplanet on a relatively wide orbit has implications for models of planetary formation and evolution, and could open the door to a new era of exoplanet characterization.
Special Section Guest Editorial: The Hitomi X-ray Observatory
Kelley, Richard L.; Nakazawa, Kazuhiro
This guest editorial introduces the Special Section on the Hitomi X-Ray Observatory, Part 1.
The NGC 7742 star cluster luminosity function: a population analysis revisited
de Grijs, Richard; Ma, Chao
We re-examine the properties of the star cluster population in the circumnuclear starburst ring in the face-on spiral galaxy NGC 7742, whose young cluster mass function has been reported to exhibit significant deviations from the canonical power law. We base our reassessment on the clusters’ luminosities (an observational quantity) rather than the…
Hinode Investigations of Microflares and Nanoflares
Ishikawa, Shin-nosuke
The First Decade of Hinode: Understanding Coronal Mass Ejections
Harra, Louise
Revised coordinates of 3 variable stars in Cygnus
Nesci, R.
The identification of the variable stars published on IBVS 1302 has ben checked on the basis of the original (unpublished) finding charts. For 3 stars significant differences were found and are reported here to allow an easier recovery by automatic cross-check procedures using digital catalogs. Some data from the recent Gaia DR2 catalog are also g…
Detectability of Galactic Faraday Rotation in multiwavelength CMB observations
Mauskopf, Philip; Kolopanis, Matthew; Bowman, Judd
We introduce a new cross-correlation method to detect and verify the astrophysical origin of Faraday Rotation (FR) in multiwavelength surveys. FR is well studied in radio astronomy from radio point sources but the λ2 suppression of FR makes detecting and accounting for this effect difficult at millimeter and sub-millimeter wavelengths. …