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12 papers · 2 filters
The first carbon-enhanced metal-poor star found in the Sculptor dwarf spheroidal
Asa Skuladottir, Eline Tolstoy, Stefania Salvadori +4
The origin of carbon-enhanced metal-poor (CEMP) stars and their possible connection with the chemical elements produced by the first stellar generation is still highly debated. In…
An Infrared Census of DUST in Nearby Galaxies with Spitzer (DUSTiNGS), II. Discovery of Metal-poor Dusty AGB Stars
Martha L. Boyer, K. B. W. McQuinn, P. Barmby +14
The DUSTiNGS survey (DUST in Nearby Galaxies with Spitzer) is a 3.6 and 4.5 micron imaging survey of 50 nearby dwarf galaxies designed to identify dust-producing Asymptotic Giant B…
The Gaia-ESO Survey: Kinematics of seven Galactic globular clusters
C. Lardo, E. Pancino, M. Bellazzini +24
The Gaia-ESO survey is a large public spectroscopic survey aimed at investigating the origin and formation history of our Galaxy by collecting spectroscopy of representative sample…
13C-methyl formate: observations of a sample of high mass star-forming regions including Orion-KL and spectroscopic characterization
Cecile Favre, Miguel Carvajal, David Field +12
We have surveyed a sample of massive star-forming regions located over a range of distances from the Galactic centre for methyl formate, HCOOCH, and its isotopologues H$^{13}…
AGN BLR structure, luminosity and mass from combined Reverberation Mapping and Optical Interferometry observations
Suvendu Rakshit, Romain G. Petrov
Unveiling the structure of the Broad Line Region (BLR) of AGN is critical to understand the quasar phenomenon. Detail study of the geometry and kinematic of these objects can answe…
Differential interferometry of QSO broad line regions I: improving the reverberation mapping model fits and black hole mass estimates
Suvendu Rakshit, Romain G. Petrov, Anthony Meilland +1
Reverberation mapping estimates the size and kinematics of broad line regions (BLR) in Quasars and type I AGNs. It yields size-luminosity relation, to make QSOs standard cosmologic…