8.6k citations
- Aarhus UniversityDK115 papers
- University of TurkuFI96 papers
- Centre National de la Recherche ScientifiqueFR95 papers
- Instituto de Astrofísica de CanariasES91 papers
- National Institute for AstrophysicsIT87 papers
- European Southern ObservatoryCL84 papers
- University of CopenhagenDK77 papers
- Universidad de La LagunaES70 papers
- Instituto de Astrofísica de AndalucíaES68 papers
- Stockholm UniversitySE66 papers
- AlbaNovaSE55 papers
- KU LeuvenBE52 papers
19 papers · 1 filter
First stars XVI. STIS/HST abundances of heavy-elements in the uranium-rich star CS 31082-001
C. Siqueira Mello, M. Spite, B. Barbuy +14
Detailed abundances of the elements produced by r-process nucleosynthesis in various circumstances are our best observational clues to their origin, since the site(s) of r-element…
The spectroscopic evolution of the recurrent nova T Pyxidis during its 2011 outburst. II.The optically thin phase and the structure of the ejecta in recurrent novae
S. N. Shore, G. J. Schwarz, I. De Gennaro Aquino +4
We continue our study of the physical properties of the recurrent nova T Pyx, focussing on the structure of the ejecta in the nebular stage of expansion during the 2011 outburst. T…
Flip-flops of FK Comae Berenices
Thomas Hackman, Jaan Pelt, Maarit J. Mantere +6
FK Comae is a rapidly rotating magnetically active star, the light curve of which is modulated by cool spots on its surface. It was the first star where the "flip-flop" phenomenon…
Redshift constraints for RGB 0136+391 and PKS 0735+178 from deep optical imaging
K. Nilsson, T. Pursimo, C. Villforth +3
We present the results of deep I-band imaging of two BL Lacerate objects, RGB 0136+391 and PKS 0735+178, during an epoch when the optical nucleus was in a faint state in both targe…
Polarimetric coronagraphy of BD+31643
G. Olofsson, R. Nilsson, H. -G. Florén +2
Context. The binary B5V star BD+31?643 exhibits a disk-like structure detected at optical wavelengths. Even though the feature is well centered on the star, it has been argued, bas…
Multiwavelength Intraday Variability of the BL Lac S5 0716+714
Alok C. Gupta, T. P. Krichbaum, P. J. Wiita +31
We report results from a 1 week multi-wavelength campaign to monitor the BL Lac object S5 0716+714 (on December 9-16, 2009). In the radio bands the source shows rapid (~ (0.5-1.5)…