Radio asymmetry in 3C 99

F Mantovani; R Fanti; C Ferrari; W Cotton; T W B Muxlow

Radio asymmetry in 3C 99

F Mantovani, R Fanti, C Ferrari, W Cotton, T W B Muxlow

Research output: Contribution to journal › Article › peer-review

Abstract

The N-galaxy 3C 99, a Compact Steep-spectrum Source showing a triple asymmetric structure, has been observed with several arrays of radio telescopes at sub-arcsecond resolution. New images from MERLIN, European VLBI Network and the Very Long Baseline Array show that the source components detected in the central region of 3C 99 have steep spectral indices, making it difficult to determine which of them is the core. The asymmetric radio structure of 3C 99 is explained using the Scheuer-Baldwin continuous streaming model with a rather large difference in the interstellar medium density on the two sides of the central region. The age of 3C 99 has been estimated; the source is found younger than 10⁶ years.

Original language	English
Pages (from-to)	449-456
Number of pages	8
Journal	Astronomy and Astrophysics
Volume	399
Publication status	Published - 2003

Keywords

galaxies: individual: 3C99
galaxies: general
radio continuum: galaxies

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http://adsabs.harvard.edu/abs/2003A%26A...399..449M

Cite this

@article{dec1bc89ea5842baa6e081e62638d482,

title = "Radio asymmetry in 3C 99",

abstract = "The N-galaxy 3C 99, a Compact Steep-spectrum Source showing a triple asymmetric structure, has been observed with several arrays of radio telescopes at sub-arcsecond resolution. New images from MERLIN, European VLBI Network and the Very Long Baseline Array show that the source components detected in the central region of 3C 99 have steep spectral indices, making it difficult to determine which of them is the core. The asymmetric radio structure of 3C 99 is explained using the Scheuer-Baldwin continuous streaming model with a rather large difference in the interstellar medium density on the two sides of the central region. The age of 3C 99 has been estimated; the source is found younger than 106 years.",

keywords = "galaxies: individual: 3C99, galaxies: general, radio continuum: galaxies",

author = "F Mantovani and R Fanti and C Ferrari and W Cotton and Muxlow, {T W B}",

year = "2003",

language = "English",

volume = "399",

pages = "449--456",

journal = "Astronomy and Astrophysics",

issn = "1432-0746",

publisher = "EDP Sciences",

}

TY - JOUR

T1 - Radio asymmetry in 3C 99

AU - Mantovani, F

AU - Fanti, R

AU - Ferrari, C

AU - Cotton, W

AU - Muxlow, T W B

PY - 2003

Y1 - 2003

N2 - The N-galaxy 3C 99, a Compact Steep-spectrum Source showing a triple asymmetric structure, has been observed with several arrays of radio telescopes at sub-arcsecond resolution. New images from MERLIN, European VLBI Network and the Very Long Baseline Array show that the source components detected in the central region of 3C 99 have steep spectral indices, making it difficult to determine which of them is the core. The asymmetric radio structure of 3C 99 is explained using the Scheuer-Baldwin continuous streaming model with a rather large difference in the interstellar medium density on the two sides of the central region. The age of 3C 99 has been estimated; the source is found younger than 106 years.

AB - The N-galaxy 3C 99, a Compact Steep-spectrum Source showing a triple asymmetric structure, has been observed with several arrays of radio telescopes at sub-arcsecond resolution. New images from MERLIN, European VLBI Network and the Very Long Baseline Array show that the source components detected in the central region of 3C 99 have steep spectral indices, making it difficult to determine which of them is the core. The asymmetric radio structure of 3C 99 is explained using the Scheuer-Baldwin continuous streaming model with a rather large difference in the interstellar medium density on the two sides of the central region. The age of 3C 99 has been estimated; the source is found younger than 106 years.

KW - galaxies: individual: 3C99

KW - galaxies: general

KW - radio continuum: galaxies

M3 - Article

SN - 1432-0746

SN - 2329-1265

VL - 399

SP - 449

EP - 456

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

Radio asymmetry in 3C 99

Abstract

Keywords

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