The MOJAVE Program: Studying the Relativistic Kinematics of AGN Jets
نویسندگان
چکیده
We discuss a new VLBA program to investigate structural and polarization changes in the brightest AGN jets in the northern sky. Our study represents a significant improvement over previous surveys in terms of image fidelity, size, and completeness, and will serve to characterize the kinematics of AGN jets and determine how these are related to other source properties. We discuss several preliminary results from our program, including the detection of parsec-scale circularly polarized jet emission, enhanced magnetic field ordering at the sites of apparent bends, and intrinsic differences in the jets of strongand weak-lined AGN.
منابع مشابه
AGN Jet Kinematics on Parsec-Scales: The MOJAVE Program
Very long baseline interferometry offers the best means of investigating the complex dynamics of relativistic jets powered by active galactic nuclei, via multi-epoch, sub-milliarcsecond, full-polarization imaging at radio wavelengths. Although targeted studies have yielded important information on the structures of individual AGN jets, the strong selection effects associated with relativistical...
متن کاملKinematics of AGN Jets
The fine-scale structure and the kinematics of relativistic active galactic nuclei (AGN) jets have been studied by very-long-baseline interferometry at very high resolutions since 1998 at 2 cm wavelength for a sample of over a hundred radio sources (VLBA 2cm Survey and MOJAVE programs). Since 2007, this is being complemented by the TANAMI project, based on southern observations with the Austral...
متن کاملCosmological evolution of compact AGN at 15 GHz
Aims. We study the uniformity of the distribution of compact flat-spectrum AGN on the sky and the evolution of their relativistic jets with cosmic epoch. Methods. A complete sample of compact extragalactic radio sources at 15 GHz was recently compiled to conduct the MOJAVE program. The MOJAVE sample comprises 133 radio-loud flat-spectrum AGN with compact relativistic outflows detected at parsec...
متن کاملMOJAVE : Monitoring of Jets in AGN with VLBA Experiments
The MOJAVE blazar sample consists of the 133 brightest, most compact radio-loud AGN in the northern sky, and is selected on the basis of VLBA 2 cm correlated flux density exceeding 1.5 Jy (2 Jy for declinations south of 0 •) at any epoch between 1994 and 2003. Since 1994 we have been gathering VLBA data on the sample to measure superluminal jet speeds and to better understand the parsec−scale k...
متن کاملMojave: Monitoring of Jets in Agn with Vlba Experiments. Vii. Blazar Jet Acceleration
We discuss acceleration measurements for a large sample of extragalactic radio jets from the MOJAVE program which studies the parsec-scale jet structure and kinematics of a complete, flux-density-limited sample of Active Galactic Nuclei (AGN). Accelerations are measured from the apparent motion of individual jet features or “components” which may represent patterns in the jet flow. We find that...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003