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Browsing by Author "Kharb, P"

Browsing by Author "Kharb, P"

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  • S7 : Probing the physics of seyfert galaxies through their ENLR & HII regions 
    Dopita, M. A; Shastri, P; Scharwachter, J; Kewley, L. J; Davies, R; Sutherland, R; Kharb, P; Jose, Jessy; Bhatt, H. C; Ramya, S; Hamptona, E; Jina, C; Banfielda, J; Zawa, I; Srivastavaa, Shweta; Jamesa, B (Cambridge University Press, 2015-02)
    Here we present the first results from the Siding Spring Southern Seyfert Spectroscopic Snapshot Survey (S7) which aims to investigate the physics of ∼140 radio-detected southern active Galaxies with z<0.02 through Integral ...
  • The search for binary black holes in Seyferts with double peaked emission lines 
    Kharb, P; Mousumi Das; Subramanian, S; Paragi, Z (Astronomical Society of India, 2015-04)
    We discuss results from very long baseline interferometry (VLBI) observations of two Seyfert galaxies with double peaked emission lines in their SDSS optical spectra. Such AGN are potential candidates for the presence ...
  • Searching for dual active galactic nuclei 
    Rubinur, K; Das, Mousumi; Kharb, P (Indian Academy of Sciences, 2018-02)
    Binary or dual active galactic nuclei (DAGN) are expected from galaxy formation theories. However, confirmed DAGN are rare and finding these systems has proved to be challenging. Recent systematic searches for DAGN using ...
  • Searching for dual AGN in galaxies with double-peaked emission line spectra using radio observations 
    Rubinur, K; Mousumi Das; Kharb, P (Oxford University Press on behalf of the Royal Astronomical Society, 2019-04)
    Supermassive black hole (SMBH) binaries form due to galaxy mergers and minor accretion events. When the SMBHs are accreting, they form dual or binary AGN and can give rise to double-peaked emission lines in the optical ...
  • Spitzer Mid-IR Spectroscopy of Powerful 2JY and 3CRR Radio Galaxies. II. AGN Power Indicators and Unification 
    Dicken, D; Tadhunter, C; Morganti, R; Axon, D; Robinson, A; Magagnoli, M; Kharb, P; Almeida, C. R; Mingo, B; Hardcastle, M; Nesvadba, N. P. H; Singh, V; Kouwenhoven, M. B. N; Rose, M; Spoon, H; Inskip, K. J; Holt, J (IOP Publishing, 2014-06-20)
    It remains uncertain which continuum and emission line diagnostics best indicate the bolometric powers of active galactic nuclei (AGNs), especially given the attenuation caused by the circumnuclear material and the possible ...
  • Study of star formation in dual nuclei galaxies using UVIT observations 
    Rubinur, K; Das, M; Kharb, P; Yadav, J; Mondal, C; Rahna, P. T (Oxford University Press on behalf of Royal Astronomical Society., 2024-03)
    We have used the Ultraviolet Imaging Telescope (UVIT) aboard AstroSat to study star formation in a sample of nine dual nuclei galaxies with separations <≈ 11 kpc, which is an expected outcome of galaxy mergers. To minimize ...
  • Understanding jets from sources straddling the Fanaroff-Riley divide 
    Kharb, P; Stanley, E; Lister, M; Marshall, H; O'Dea, C; Baum, S (Cambridge University Press, 2015-03)
    Results from Chandra-HST-VLA observations of 13 hybrid sources are presented. Data from ten sources in the literature are analysed along with new data from three hybrid blazars belonging to the MOJAVE sample. Studies of ...
  • Very large baseline array observations of Mrk 6: probing the jet–lobe connection 
    Kharb, P; O'Dea, C. P; Baum, S. A; Hardcastle, M. J; Dicken, D; Croston, J. H; Mingo, B; Noel-Storr, J (Oxford University Press on behalf of the Royal Astronomical Society, 2014-06-01)
    We present the results of high-resolution VLBI (very long baseline interferometry) observations at 1.6 and 4.9 GHz of the radio-loud Seyfert galaxy, Mrk 6. These observations are able to detect a compact radio core in this ...
  • Very long baseline interferometry with the SKA 
    Paragi, Z; Godfrey, L; Reynolds, C; Rioja, M. J; Deller, A; Zhang, B; Gurvits, L; Bietenholz, M; Szomoru, A; Bignall, H. E; Boven, P; Charlot, P; Dodson, R; Frey, S; Garrett, M. A; Imai, H; Lobanov, A; Reid, M. J; Ros, E; Van Langevelde, H. J; Zensus, A. J; Zheng, X W; Alberdi, A; Agudo, I; An, T; Argo, M; Beswick, R; Biggs, A; Brunthaler, A; Campbell, B; Cimo, G; Colomer, F; Corbel, S; Conway, J. E; Cseh, D; Deane, R; Falcke, H .D. E; Gawronski, M; Gaylard, M; Giovannini, G; Giroletti, M; Goddi, C; Goedhart, S; Gomez, J. L; Gunn, A; Kharb, P; Kloeckner, H. R; Koerding, E; Kovalev, Y; Kunert-Bajraszewska, M; Lindqvist, M; Lister, M; Mantovani, F; Marti-Vidal, I; Mezcua, M; McKean, J; Middelberg, E; Miller-Jones, J. C. A; Moldon, J; Muxlow, T; O'Brien, T; Perez-Torres, M; Pogrebenko, S. V; Quick, J; Rushton, A; Schilizzi, R; Smirnov, O; Sohn, B .W; Surcis, G; Taylor, G. B; Tingay, S; Tudose, V. M; van der Horst, A; van Leeuwen, J; Venturi, T; Vermeulen, R; Vlemmings, W. H. T; de Witt, A; Wucknitz, O; Yang, J; Gabanyi, K; Jung, T (International School for Advanced Studies (SISSA), 2015-04)
    Adding VLBI capability to the SKA arrays will greatly broaden the science of the SKA, and is feasible within the current specifications. SKA-VLBI can be initially implemented by providing phased-array outputs for SKA1-MID ...
  • A VLA–GMRT look at 11 powerful FR II quasars 
    Vaddi, Sravani; Kharb, P; Daly, R. A; O’Dea, C P; Baum, S. A; Deo, D.K; Barbusca, T.C; Murali, Chintak (Oxford University Press on behalf of the Royal Astronomical Society, 2019-03)
    We present results from 1.4 and 5 GHz observations at matched resolution with the Karl G. Jansky Very Large Array (VLA) of 11 powerful 3C FR II quasars. We examine the 11 quasars along with a sample of 13 narrow-line FR II ...
  • VLBI imaging of the double peaked emission line seyfert KISSR 1494 
    Kharb, P; Mousumi Das; Paragi, Z; Subramanian, S; Pradeep Chitta, L (IOP Publishing, 2015-02-01)
    We present here the results from dual-frequency phase-referenced Very Long Baseline Interferometry observations of the Seyfert galaxy KISSR 1494, which exhibits double peaked emission lines in its Sloan Digital Sky Survey ...
  • When less is more: Are radio galaxies below the Fanaroff-Riley break more polarized on parsec scales? 
    Kharb, P; Shastri, P; Gabuzda, D. C (IOP Publishing, 2005-10-20)
    We present images showing the first detections of polarizations on parsec scales in the nuclei of four Fanaroof-Riley type I (low-luminosity) radio galaxies. Observations with Very long Baseline Interferomatry at lamda 3.6 ...

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