390 citations · 901 across the 9 of their papers we have counts for
9 papers
The Pan-STARRS1 distant z>5.6 quasar survey: more than 100 quasars within the first Gyr of the universe
E. Bañados, B. P. Venemans, R. Decarli +33
Luminous quasars at z>5.6 can be studied in detail with the current generation of telescopes and provide us with unique information on the first gigayear of the universe. Thus far…
The blue supergiant MN18 and its bipolar circumstellar nebula
V. V. Gvaramadze, A. Y. Kniazev, J. M. Bestenlehner +6
We report the results of spectrophotometric observations of the massive star MN18 revealed via discovery of a bipolar nebula around it with the Spitzer Space Telescope. Using the o…
On the relation between supersoft X-ray sources and VY Scl stars: The cases of V504 Cen and VY Scl
J. Greiner, R. Schwarz, C. Tappert +3
We summarize our optical monitoring program of VY Scl stars with the SMARTS telescopes, and triggered X-ray as well as optical observations after/during state transitions of V504 C…
The Characteristics of Magnetic CVs in the Period Gap
G. Tovmassian, S. Zharikov, R. Mennickent +1
We have observed several magnetic cataclysmic variables located in the range between 2 and 3 hours, known as the period gap. This work was prompted by the recent discovery of RX J1…
On the secondary star of the cataclysmic variable 1RXS J094432.1+035738
R. E. Mennickent, G. Tovmassian, S. V. Zharikov +4
We present V and Rc band photometry and optical near-infrared spectroscopy of the cataclysmic variable 1RXS J094432.1+035738. We detected features of a cool secondary star, which c…
An unusually massive stellar black hole in the Galaxy
J. Greiner, J. G. Cuby, M. J. McCaughrean
Here we report a measurement of the orbital period and mass function of GRS 1915+105 which allow us to deduce a mass of 14 +- 4 solar masses for its black hole. This large mass pro…