A Cocoon Transparency and the 3C 345 Low Frequency Variability

Vlba Monitoring of the Qso 3c 345

A and a Manuscript-nr. a Helical Model for the Compact Jet in 3c 345

We present a simple model for the apparent superluminal motion along curved trajectories of features observed in the compact radio jet of the quasar 3C 345. The model is inspired by the magneto-hydrodynamic approach of Camenzind (1986), and assumes a conical geometry of the jet within about three milliarcseconds of the radio core. Simultaneous conservation of three out of four physical paramete...

The Host Galaxies of Three Radio-loud Quasars: 3c 48, 3c 345, and B2 1425]2671 Sofia Kirhakos

Observations with the Wide-Field/Planetary Camera-2 of the Hubble Space T elescope are presented for three radio-loud quasars : 3C 48 (z\ 0.367), B2 1425]267 (z\ 0.366), and 3C 345 (z\ 0.594). All three quasars have luminous (D4 ] L*) galaxies as hosts, which are either elliptical (B2 1425]267 and 3C345) or interacting (3C 48), and all hosts are 0.5È1.0 mag bluer in V [I than other galaxies wit...

A historical light curve of 3C 345 and its periodic analysis

All data in the B band for quasar 3C 345 have been compiled into a light curve from twenty one publications, dating back to 1896; 1642 values are available. The light curve shows that 3C 345 is very active and exhibits very complicated nonsinusoidal variations. Using this data we have found a period of 10.1±0.8 years (or 21.8±1.5 years) for the outbursts in 3C 345. This value is in good agreeme...

Modeling sardine and anchovy low-frequency variability.

The group of small pelagics (sardines, anchovies, herrings, etc.) is the largest source of wild marine protein worldwide, providing annually between 21% and 43% of the total marine capture production during at least the last 60 y (1). Even when large-scale fisheries have been operating for decades to centuries, their assessment and management remains difficult and highly uncertain (2). Such cha...