1.9k citations · 10.5k across the 74 of their papers we have counts for
8 papers · 1 filter
Gaia-DR2 confirms VLBA parallaxes in Ophiuchus, Serpens and Aquila
Gisela N. Ortiz-León, Laurent Loinard, Sergio A. Dzib +9
We present Gaia-DR2 astrometry of a sample of YSO candidates in Ophiuchus, Serpens Main and Serpens South/W40 in the Aquila Rift, which had been mainly identified by their infrared…
Micro-arcsecond structure of Sagittarius A* revealed by high-sensitivity 86 GHz VLBI observations
Christiaan D. Brinkerink, Cornelia Müller, Heino D. Falcke +21
The compact radio source Sagittarius~A (Sgr~A)in the Galactic Center is the primary supermassive black hole candidate. General relativistic magnetohydrodynamical (GRMHD) si…
Distances and Kinematics of Gould Belt Star-Forming Regions with Gaia DR2 results
Sergio A. Dzib, Laurent Loinard, Gisela N. Ortiz-León +2
We present an analysis of the astrometric results from Gaia second data release (DR2) to Young Stellar Objects (YSOs) in star-forming regions related to the Gould Belt. These regio…
The Gould's Belt Distances Survey (GOBELINS). V. Distances and Kinematics of the Perseus molecular cloud
Gisela N. Ortiz-León, Laurent Loinard, Sergio A. Dzib +10
We derive the distance and structure of the Perseus molecular cloud by combining trigonometric parallaxes from Very Long Baseline Array (VLBA) observations, taken as part of the GO…
The Gould's Belt Distances Survey (GOBELINS). IV. Distance, Depth and Kinematics of the Taurus Star-Forming Region
Phillip A. B. Galli, Laurent Loinard, Gisela N. Ortiz-Leon +13
We present new trigonometric parallaxes and proper motions of young stellar objects in the Taurus molecular cloud complex from observations collected with the Very Long Baseline Ar…
VLBA Observations of Strong Anisotripic Radio Scattering towards the Orion Nebula
Marina Kounkel, Lee Hartmann, Laurent Loinard +6
We present observations of VLBA 20, a radio source found towards the edge of the Orion Nebula Cluster (ONC). Nonthermal emission dominates the spectral energy distribution of this…
A revised distance to IRAS 162932422 from VLBA astrometry of associated water masers
S. A. Dzib, G. N. Ortiz-León, A. Hernández-Gómez +6
IRAS 16293-2422 is a very well studied young stellar system seen in projection towards the L1689N cloud in the Ophiuchus complex. However, its distance is still uncertain with a ra…
VLBA Determination of the Distance to Nearby Star-forming Regions. VIII. The LkH 101 cluster
S. A. Dzib, G. N. Ortiz-León, Laurent Loinard +4
The LkH 101 cluster takes its name from its more massive member, the LkH 101star, which is an M star whose true nature is still unknown. The distance to the…