# Investigating source confusion in PMN J1603$-$4904

@article{Krau2018InvestigatingSC,
title={Investigating source confusion in PMN J1603\$-\$4904},
author={Felicia Krau{\ss} and Michael Kreter and Cornelia Muller and Alex G. Markowitz and Moritz Bock and Toby Burnett and Thomas Dauser and Matthias Kadler and Annika Kreikenbohm and Roopesh Ojha and Joern Wilms},
journal={arXiv: High Energy Astrophysical Phenomena},
year={2018}
}
• Published 5 January 2018
• Physics
• arXiv: High Energy Astrophysical Phenomena
PMN J1603$-$4904 is a likely member of the rare class of $\gamma$-ray emitting young radio galaxies. Only one other source, PKS 1718$-$649, has been confirmed so far. These objects, which may transition into larger radio galaxies, are a stepping stone to understanding AGN evolution. It is not completely clear how these young galaxies, seen edge-on, can produce high-energy $\gamma$-rays. PMN J1603$-$4904 has been detected by TANAMI Very Long Baseline Interferometry (VLBI) observations and has…
3 Citations

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## References

SHOWING 1-10 OF 35 REFERENCES

### The unusual multiwavelength properties of the gamma-ray source PMN J1603−4904

• Physics
• 2014
Context: We investigate the nature and classification of PMN J1603−4904, a bright radio source close to the Galactic plane, which is associated with one of the brightest hard-spectrum γ-ray

### The MHz-peaked radio spectrum of the unusual γ-ray source PMN J1603–4904

• Physics
• 2016
Context. The majority of bright extragalactic γ-ray sources are blazars. Only a few radio galaxies have been detected by Fermi/LAT. Recently, the GHz-peaked spectrum source PKS 1718–649 was confirmed

### Optical-NIR spectroscopy of the puzzling gamma-ray source 3FGL 1603.9-4903/PMN J1603-4904 with X-shooter

• Physics
• 2015
The Fermi/LAT instrument has detected about two thousands Extragalactic High Energy (E > 100 MeV) gamma-ray sources. One of the brightest is 3FGL 1603.9-4903, associated to the radio source PMN

### Investigating powerful jets in radio-loud narrow-line Seyfert 1s

• Physics
• 2015
We report results on multiband observations from radio to gamma-rays of the two radio-loud narrow-line Seyfert 1 (NLSy1) galaxies PKS 2004-447 and J1548+3511. Both sources show a core-jet structure

### IDENTIFICATION OF THE EARLY FERMI/LAT GAMMA-RAY BRIGHT OBJECTS WITH EXTRAGALACTIC VLBI SOURCES

A list of 205 γ-ray strong objects was reported recently as a result of a three-month integration with the Large Area Telescope on board the Fermi Gamma-Ray Space Telescope. We attempted

### 2FHL: THE SECOND CATALOG OF HARD FERMI-LAT SOURCES

• Physics
• 2015
We present a catalog of sources detected above 50 GeV by the Fermi-Large Area Telescope (LAT) in 80 months of data. The newly delivered Pass 8 event-level analysis allows the detection and

### TWO-SIDED EJECTION IN POWERFUL RADIO SOURCES : THE COMPACT SYMMETRIC OBJECTS

• Physics
• 1994
We present very long base interferometry (VLBI) images of the compact high-luminosity radio galaxy 2352+495 that show symmetric structure on either side of a prominent central core. This contrasts

### FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE ACTIVE GALAXY 4C +55.17: STEADY, HARD GAMMA-RAY EMISSION AND ITS IMPLICATIONS

• Physics
• 2011
We report Fermi Large Area Telescope (LAT) observations and broadband spectral modeling of the radio-loud active galaxy 4C +55.17 (z = 0.896), formally classified as a flat-spectrum radio quasar.

### 3FHL: The Third Catalog of Hard Fermi-LAT Sources

• Physics
• 2017
We present a catalog of sources detected above 10 GeV by the Fermi Large Area Telescope (LAT) in the first 7 years of data using the Pass 8 event-level analysis. This is the Third Catalog of Hard

### The Fermi-LAT view of young radio sources

• Physics, Chemistry
• 2015
Compact Symmetric Objects (CSO) are considered to be the young version of Fanaroff-Riley type I and type II radio galaxies, with typical sizes smaller than 1 kpc and ages of the order of a few