4 papers
Joint Analysis of HI Absorption Zeeman Measurements and the Morphology of Filamentary HI Emission
Marta Nowotka, Susan E. Clark, Blakesley Burkhart +4
We present a joint analysis of HI absorption Zeeman measurements and the morphology of filamentary HI emission to investigate the three-dimensional structure of the magnetic field…
Beam Measurements of Full Stokes Parameters for the FAST L-band 19-beam Receiver
Xunzhou Chen, Tao-Chung Ching, Di Li +7
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has been fully operational since 11 January 2020. We present a comprehensive analysis of the beam structure for eac…
Polarization Calibration of the FAST L-band 19-beam Receiver: I. On-axis Mueller Matrix Parameters
Tao-Chung Ching, Carl Heiles, Di Li +6
We present the polarization calibration of the 19-beam receiver at 1420 MHz within the full illumination of the Five-hundred-meter Aperture Spherical Telescope from October 2018 to…
Revisiting rotationally excited CH at radio wavelengths: A case study towards W51
Arshia M. Jacob, Meera Nandakumar, Nirupam Roy +7
Ever since they were first detected in the interstellar medium, the radio wavelength (3.3 GHz) hyperfine-structure splitting transitions in the rotational ground state of CH have b…