102 citations · 267 across the 6 of their papers we have counts for
6 papers
Shared-optical-path VLBI frequency phase transfer from 86 to 258 GHz on an 8600 km baseline: Demonstrated with the APEX and IRAM 30 m telescopes
G. -Y. Zhao, A. L. Roy, J. F. Wagner +24
The receiver N3AR operating at a frequency range between 67 and 116 GHz has been commissioned at the APEX telescope in October 2024. This adds a new low-frequency band for APEX, wi…
First frequency phase transfer from the 3 mm to the 1 mm band on an Earth-sized baseline
Sara Issaoun, Dominic W. Pesce, María J. Rioja +33
Frequency Phase Transfer (FPT) is a technique designed to increase coherence and sensitivity in radio interferometry by making use of the non-dispersive nature of the troposphere t…
The Impact of Frequency Standards on Coherence in VLBI at the Highest Frequencies
M. Rioja, R. Dodson, Y. Asaki +2
We have carried out full imaging simulation studies to explore the impact of frequency standards in millimeter and sub-millimeter Very Long Baseline Interferometry (VLBI), focusing…
High CO depletion in southern infrared-dark clouds
F. Fontani, A. Giannetti, M. T. Beltran +5
Infrared-dark high-mass clumps are among the most promising objects to study the initial conditions of the formation process of high-mass stars and rich stellar clusters. In this w…
High Precision Astrometric Millimeter VLBI Using a New Method for Atmospheric Calibration
Maria J. Rioja, Richard Dodson
We describe a new method which achieves high precision Very Long Baseline Interferometry (VLBI) astrometry in observations at millimeter wavelengths. It combines fast frequency-swi…
Methanol and water masers in IRAS 20126+4104: The distance, the disk, and the jet
L. Moscadelli, R. Cesaroni, M. J. Rioja +2
IRAS 20126+4104 is one of the best candidates for a high-mass (proto)star surrounded by an accretion disk. Such a fact may be used to set constraints on theories of high-mass star…