Cosmological Studies with Radio Galaxies and Supernovae (2009)
Daly, Ruth A., Mory, Matthew P., O'Dea, C. P., Kharb, P., Baumont, S., Guerra, E. J., ...
Physical sizes of extended radio galaxies can be employed as a cosmological "standard ruler," using a previously developed method. Eleven new radio galaxies are added to our previous sample of 19...
Rotation-Measures across Parsec-scale Jets of FRI radio galaxies (2009)
Kharb, P., Gabuzda, D. C., O'Dea, C. P., Shastri, P., Baum, S. A.
We present the results of a parsec-scale polarization study of three FRI radio galaxies - 3C66B, 3C78 and 3C264 - obtained with the Very Long Baseline Array at 5, 8 and 15 GHz. Parsec-scale...
Chandra evidence for AGN feedback in the spiral galaxy NGC 6764 (2008)
Croston, J. H., Hardcastle, M. J., Kharb, P., Kraft, R. P., Hota, A.
We report the Chandra detection of X-ray emission spatially coincident with the kpc-scale radio bubbles in the nearby (D_L ~ 31 Mpc) AGN-starburst galaxy NGC 6764. The X-ray emission originates in...
Daly, Ruth A., Djorgovski, S. G., Freeman, Kenneth A., Mory, Matthew P., O'Dea, C. P., Kharb, P., ...
We extend and apply a model-independent analysis method developed earlier by Daly & Djorgovski to new supernova, radio galaxy, and galaxy cluster samples to study the acceleration history of the...
WFPC2 LRF Imaging of Emission Line Nebulae in 3CR radio galaxies (2008)
Privon, G., O'Dea, Christopher, Baum, Stefi, Axon, David, Kharb, P., Buchanan, Catherine, ...
Also archived in: arXiv:0710.3105 v1 16 Oct 2007
Parsec-scale magnetic field structures in HEAO-1 BL Lacs (2008)
Kharb, P, Gabuzda, D, Shastri, P
Restricted Access
Parsec-scale magnetic field structures in HEAO-1 BL Lacs (2008)
Kharb, P, Gabuzda, D, Shastri, P
Restricted Access
Chandra evidence for AGN feedback in the spiral galaxy NGC 6764. (2008)
Croston, J.H., Hardcastle, M.J., Kharb, P., Kraft, R.P., Hota, A.
Original article can be found at: http://www.journals.uchicago.edu/loi/apj Copyright The American Astronomical Society DOI: 10.1086/592268 [ Full text of this article is not available in the UHRA]
Magnetic Fields in Blazar Pc-scale Jets - Possible connection to Spin Rates of Black holes ? (2007)
Kharb, P., Lister, M. L., Shastri, P.
We re-examine the differences observed in the pc-scale magnetic field geometry of high and low optical polarization Quasars (HPQs, LPRQs) using the MOJAVE sample. We find that, as previously...
Parsec-scale Magnetic-Field Structures in HEAO-1 BL Lacs (2007)
Kharb, P., Gabuzda, D., Shastri, P.
We present very long baseline interferometry polarization images of an X-ray selected sample of BL Lacertae objects belonging to the first High Energy Astronomy Observatory (HEAO-1) and the...
Daly, Ruth A., Djorgovski, S. G., Freeman, Kenneth A., Mory, Matthew P., O'Dea, C. P., Kharb, P., ...
We extend and apply a model-independent analysis method developed earlier by Daly & Djorgovski to new samples of supernova standard candles, radio galaxy and cluster standard rulers, and use it to...
Cosmological Studies with Radio Galaxies and Supernovae (2007)
Daly, Ruth A., Mory, Matthew P., O'Dea, C. P., Kharb, P., Baum, S., Guerra, E. J., ...
Physical sizes of extended radio galaxies can be employed as a cosmological "standard ruler", using a previously developed method. Eleven new radio galaxies are added to our previous sample of...
WFPC2 LRF Imaging of Emission Line Nebulae in 3CR Radio Galaxies (2007)
Privon, G. C., O'Dea, C. P., Baum, S. A., Axon, D. J., Kharb, P., Buchanan, C. L., ...
We present HST/WFPC2 Linear Ramp Filter images of high surface brightness emission lines (either [OII], [OIII], or H-alpha+[NII]) in 80 3CR radio sources. We overlay the emission line images on high...
The Properties and Gaseous Environments of Powerful Classical Double Radio Galaxies (2007)
Daly, Ruth, O'Dea, C., Kharb, P., Baum, S., Freeman, Kenneth, Mory, Matthew
The properties of a sample of 31 very powerful classical double radio galaxies with redshifts between zero and 1.8 are studied. The source velocities, beam powers, ambient gas densities, total...
A Study of 13 Powerful Classical Double Radio Galaxies (2007)
Kharb, P., O'Dea, C., Baum, S., Daly, R., Mory, M., Donahue, M., ...
We have carried out an extensive study of a sample of 13 large, powerful Fanaroff-Riley type II radio galaxies with the Very Large Array in multiple configurations at 330 MHz, 1.4, 5 and 8 GHz. We...
A Radio Study of 13 Powerful FRII Radio Galaxies (2006)
Kharb, P., O'Dea, C., Baum, S., Daly, R., Mory, M., Donahue, M., ...
We have observed a sample of 13 large, powerful Fanaroff-Riley type II radio galaxies with the Very Large Array in multiple configurations and at multiple frequencies. We have combined our...
A Radio Study of the Seyfert galaxy Markarian 6: Implications for Seyfert life-cycles (2006)
Kharb, P., O'Dea, C. P., Baum, S. A., Colbert, E. J. M., Xu, C.
We have carried out an extensive radio study with the Very Large Array on the Seyfert 1.5 galaxy Mrk 6 and imaged a spectacular radio structure in the source. The radio emission occurs on three...
Kharb, P., Shastri, P., Gabuzda, D. C.
We present images showing the first detections of polarization on parsec scales in the nuclei of four Fanaroff-Riley type I (low-luminosity) radio galaxies. Observations with Very Long Baseline...
RIT Undergraduate Symposium 2005 (2005)
Bodell, A., Williams, Scott, Ibrahim, Ahmed, Wilson, Jacquelyn, Pagano, Todd, Regula, A., ...
CIMS, building 78, room 2240 8:00 am-5:00 pm
RIT Undergraduate Symposium 2005 (2005)
Bodell, A., Williams, Scott, Ibrahim, Ahmed, Wilson, Jacquelyn, Pagano, Todd, Regula, A., ...
CIMS, building 78, room 2240 8:00 am-5:00 pm
RIT Undergraduate Symposium 2005 (2005)
Bodell, A., Williams, Scott, Ibrahim, Ahmed, Wilson, Jacquelyn, Pagano, Todd, Regula, A., ...
CIMS, building 78, room 2240 8:00 am-5:00 pm
Kharb, P, Shastri, P, Gabuzda, D. C
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...
Optical Nuclei of Radio-loud AGN and the Fanaroff-Riley Divide (2004)
We investigate the nature of the point-like optical ``cores'' that have been found in the centres of the host galaxies of a majority of radio galaxies by the Hubble Space Telescope. We examine the...
Optical Nuclei of Radio-loud AGN and the Fanaroof-Riley Divide (2004)
We investigate the nature of the point-like optical nuclei that have been found in the centres of the host galaxies of a majority of radio galaxies by the Hubble Space Telescope. We examine the...
Magnetic Field Geometry of the Broad Line Radio Galaxy 3C111 (2003)
Kharb, P., Gabuzda, D., Alef, W., Preuss, E., Shastri, P.
Very Long Baseline Polarimetric observations of the Broad Line Radio galaxy 3C111 performed in July and September of 1996 at 8 and 43 GHz reveal rapidly evolving parsec-scale radio structure after a...
Pc-scale study of Radio galaxies & BL Lacs (2003)
Kharb, P., Shastri, P., Gabuzda, D. C.
We study two aspects of the differences between Active Galactic Nuclei (AGN) of the two Fanaroff-Riley types in order to investigate the causes of the F-R divide. We (a) contrast the properties of...
Magnetic Field Geometry in "Red" and "Blue" BL Lacs (2003)
Kharb, P., Gabuzda, D. C., Shastri, P.
We compare the systematics of the magnetic field geometry in the "red" low-energy peaked BL Lacs (LBLs) and "blue" high-energy peaked BL Lacs (HBLs) using VLBI polarimetric images. The LBLs are...
Magnetic field geometry of the broad line radio galaxy 3C111 (2003)
Kharb, P., Gabuzda, D., Alef, W., Preuss, E., Shastri, P.
Very Long Baseline Polarimetric observations of the Broad Line Radio galaxy 3C111 performed in July and September of 1996 at 8 and 43 GHz reveal rapidly evolving parsec-scale radio structure after a...
Relativistic beaming and central components of radio galaxies (2001)
We present results of our study of the parsec-scale components of radio galaxies as observed at radio and optical wavelengths, in the framework of the Unified Scheme.