Abstract
We present optical imaging and spectroscopic studies of the Fanaroff & Riley class I (FR I) radio galaxy CTD 086 based on Hubble Space Telescope (HST) and Sloan Digital Sky Survey (SDSS) observations. We use isophote shape analysis to show that there is no stellar disk component within CTD 086 and further that the morphological class of the galaxy is most likely E2. Optical spectroscopy of this galaxy reveals the presence of narrow emission lines only, and thus it qualifies to be termed as a narrow-line radio galaxy (type 2 AGN). We also extract stellar kinematics from the absorption-line spectra of CTD 086 using Penalized Pixel-Fitting method and derive the black hole mass \(M_{BH}\) to be equal to \((8.8\pm2.4)\times10^{7}~{\mathrm{M}\odot}\).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Notes
The Space Telescope Science Data Analysis System STSDAS is distributed by Space Telescope Science Institute.
Image Reduction And Analysis Facility (IRAF) is distributed by the National Optical Astronomy observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.
SDSS is the Data base http://www.sdss.org.
References
Canosa, C.M., Worrall, D.M., Hardcastle, M.J., Birkinshaw, M.: Mon. Not. R. Astron. Soc. 310, 30 (1999)
Cappellari, M., Emsellem, E.: Publ. Astron. Soc. Pac. 116, 138 (2004)
de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H.G. Jr., Buta, R.J., Paturel, G., Fouque, P.: Sky Telesc. 82, 621 (1991)
Fanaroff, B.L., Riley, J.M.: Mon. Not. R. Astron. Soc. 167, 31P (1974)
Giovannini, G., Feretti, L., Stanghellini, C.: Astron. Astrophys. 252, 528 (1991)
Gültekin, K., Richstone, D.O., Gebhardt, K., et al.: Astrophys. J. 698, 198 (2009)
Ho, L.C., Filippenko, A.V., Sargent, W.L.W.: Astrophys. J. Suppl. Ser. 112, 315 (1997)
Jedrzejewski, R.I.: Mon. Not. R. Astron. Soc. 226, 747 (1987)
Owen, F.N., Laing, R.A.: Mon. Not. R. Astron. Soc. 238, 357 (1989)
Pandge, M.B., Dewangan, G.C., Singh, K.P., Patil, M.K.: Mon. Not. R. Astron. Soc. 435, 3385 (2013)
Parma, P., Fanti, C., Fanti, R., Morganti, R., de Ruiter, H.R.: Astron. Astrophys. 181, 244 (1987)
Prestage, R.M., Peacock, J.A.: Mon. Not. R. Astron. Soc. 230, 131 (1988)
Acknowledgements
We thank Dr. Suvendu Rakshit (IIA, Bangalore) for reading the manuscript and providing useful suggestions for its improvement. SKS also acknowledge thanks to Dr. L Chaware (CBS, Raipur) and Mahendra Verma (RSU, Raipur) for their valuable suggestions and support. M.B. Pandge gratefully acknowledges the support from the Department of Science and Technology (DST), New Delhi under the scheme of SERB young Scientist Scheme (sanctioned No. SERB/YSS/2015/000534). N. Navale acknowledges the support of Department of Science and Technology (DST), New Delhi under the INSPIRE Faculty Scheme (sanctioned No. DST/INSPIRE/04/2015/000108). This work is based on archival data of the Hubble Space Telescope (HST), which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555, and the Sloan Digital Sky Survey (SDSS). This research has made use of NASA’s Astrophysics Data System, and of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sahu, S.K., Navale, N.R., Pandey, S.K. et al. Optical imaging and spectral study of FR-I type radio galaxy: CTD 086 (B2 1422+26B). Astrophys Space Sci 362, 158 (2017). https://doi.org/10.1007/s10509-017-3139-3
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10509-017-3139-3