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Multiphase ISM in low luminosity radio galaxies: A case study of NGC 708

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Sheetal K Sahu ,
S K Pandey ,
L Chaware  and
M B Pandge
Sheetal K Sahu
Affiliation:
SOS in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, India492010 email: [email protected], [email protected], [email protected]
S K Pandey
Affiliation:
SOS in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, India492010 email: [email protected], [email protected], [email protected]
L Chaware
Affiliation:
SOS in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, India492010 email: [email protected], [email protected], [email protected]
M B Pandge
Affiliation:
Mahatma Basweshswar Mahavidyalaya, Latur, Maharastra, India413512. Dayanand Science College, Latur, MaharastraIndia. 413512.
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Abstract

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We present a multi-wavelength study of a nearby radio loud elliptical galaxy NGC 708, selected from the Bologna B2 sample of radio galaxies. We obtained optical broad band and narrow images from IGO 2m telescope (Pune, India). We supplement the multi-wavelength coverage of the observation by using X-ray data from Chandra, infrared data from 2MASS, Spitzer and WISE and optical image from DSS and HST. In order to investigate properties of interstellar medium, we have generated unsharp-masked, color, residual, quotient, dust extinction, Hα emission maps. From the derived maps it is evident that cool gas, dust, warm ionized Hα and hot X-ray gas are spatially associated with each other. We investigate the inner and outer photometric and kinematic properties of the galaxy using surface brightness profiles. From X-ray 2d beta model, unsharp masking, surface brightness profiles techniques, it is evident that pair of X-ray cavities are present in this system and which are ~5.6 Kpc away from the central X-ray source.

Keywords

Galaxies: early typesurface photometryISMCooling flowsAGN feedback
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E70
Copyright
Copyright © International Astronomical Union 2016 

References

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