- University of EdinburghGB3.3k papers
- Centre National de la Recherche ScientifiqueFR1.4k papers
- UK Astronomy Technology CentreGB1.2k papers
- Leiden UniversityNL942 papers
- California Institute of TechnologyUS903 papers
- European Southern ObservatoryCL848 papers
- Durham UniversityGB816 papers
- University of OxfordGB756 papers
- University of CambridgeGB714 papers
- University College LondonGB702 papers
- Max Planck Institute for AstronomyDE694 papers
- National Institute for AstrophysicsIT688 papers
259 papers · 1 filter
OGLE-2013-BLG-0911Lb: A Secondary on the Brown-Dwarf Planet Boundary around an M-dwarf
Shota Miyazaki, Takahiro Sumi, David P. Bennett +92
We present the analysis of the binary-lens microlensing event OGLE-2013-BLG-0911. The best-fit solutions indicate the binary mass ratio of q~0.03 which differs from that reported i…
The Tarantula Massive Binary Monitoring: III. Atmosphere analysis of double-lined spectroscopic systems
L. Mahy, H. Sana, M. Abdul-Masih +17
Accurate stellar parameters of individual objects in binary systems are essential to constrain the effects of binarity on stellar evolution. These parameters serve as a prerequisit…
The Tarantula Massive Binary Monitoring. IV. Double-lined photometric binaries
L. Mahy, L. A. Almeida, H. Sana +10
A high fraction of massive stars are found to be binaries but only a few of them are reported as photometrically variable. By studying the populations of SB2 in the 30 Doradus regi…
The NGC 346 massive star census: Nitrogen abundances for apparently single, narrow lined, hydrogen core burning B-type stars
P. L. Dufton, C. J. Evans, D. J. Lennon +1
Analyses of large spectroscopic surveys of early-type stars in the LMC have found an excess of nitrogen enriched B-type targets with a vsini<40 km/s compared with the predictions o…
Through Andromeda and Beyond: AGN Optical Transient 'Sharov21' Revisited
A. Bruce, A. Lawrence, D. McLeod +1
We revisit a notable AGN known as `Sharov21', seen to undergo a dramatic outburst in 1992, brightening by a factor of thirty over a period of approximately one year. A simple micro…
The first high-redshift changing-look quasars
Nicholas P. Ross, Matthew J. Graham, Giorgio Calderone +3
We report on three redshift quasars with dramatic changes in their C IV emission lines, the first sample of changing-look quasars (CLQs) at high redshift. This is also the fi…