INTERFEROMETRIC MONITORING OF GAMMA-RAY BRIGHT ACTIVE GALACTIC NUCLEI II: FREQUENCY PHASE TRANSFER

The Interferometric Monitoring of Gamma-ray Bright Active galactic nuclei (iMOGABA) program provides not only simultaneous multifrequency observations of bright gamma-ray detected active galactic nuclei (AGN), but also covers the highest Very Large Baseline Interferometry (VLBI) frequencies ever bei...

Full description

Saved in:
Bibliographic Details
Published inJournal of the Korean astronomical society Vol. 48; no. 5; pp. 237 - 255
Main Authors ALGABA, JUAN-CARLOS, ZHAO, GUANG-YAO, LEE, SANG-SUNG, BYUN, DO-YOUNG, KANG, SIN-CHEOL, KIM, DAE-WON, KIM, JAE-YOUNG, KIM, JEONG-SOOK, KIM, SOON-WOOK, KINO, MOTOKI, MIYAZAKI, ATSUSHI, PARK, JONG-HO, TRIPPE, SASCHA, WAJIMA, KIYOAKI
Format Journal Article
LanguageKorean
Published 2015
Subjects
methods: data analysis
galaxies: active
techniques: high angular resolution
techniques: interferometric
Online AccessGet full text

Cover

More Information
Summary:The Interferometric Monitoring of Gamma-ray Bright Active galactic nuclei (iMOGABA) program provides not only simultaneous multifrequency observations of bright gamma-ray detected active galactic nuclei (AGN), but also covers the highest Very Large Baseline Interferometry (VLBI) frequencies ever being systematically monitored, up to 129 GHz. However, observation and imaging of weak sources at the highest observed frequencies is very challenging. In the second paper in this series, we evaluate the viability of the frequency phase transfer technique to iMOGABA in order to obtain larger coherence time at the higher frequencies of this program (86 and 129 GHz) and image additional sources that were not detected using standard techniques. We find that this method is applicable to the iMOGABA program even under non-optimal weather conditions.
Bibliography:KISTI1.1003/JNL.JAKO201536553288939
ISSN:1225-4614
2288-890X