Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Jarvis, M. E."'
Autor:
Sasikumar, Silpa, Kharb, P., Harrison, C. M., Girdhar, A., Mukherjee, D., Mainieri, V., Jarvis, M. E.
We present results from a combined radio polarization and emission line study of five type 2 quasars at $z<0.2$ with the Karl G. Jansky Very Large Array (VLA) B-array at 5 GHz and Hubble Space Telescope (HST) [O III] observations. These five sources
Externí odkaz:
http://arxiv.org/abs/2204.05613
Autor:
S., Silpa, Kharb, P., Harrison, C. M., Ho, L. C., Jarvis, M. E., Ishwara-Chandra, C. H., Sebastian, B.
We present results from a polarization study of the radio-intermediate quasar, III Zw 2, at a redshift of 0.089, with the upgraded Giant Metrewave Radio Telescope (uGMRT) at 685 MHz and the Karl G. Jansky Very Large Array (VLA) at 5 and 34 GHz. We de
Externí odkaz:
http://arxiv.org/abs/2107.01818
Autor:
Jarvis, M. E., Harrison, C. M., Mainieri, V., Alexander, D. M., Battaia, F. Arrigoni, Rivera, G. Calistro, Circosta, C., Costa, T., De Breuck, C., Edge, A. C., Girdhar, A., Kakkad, D., Kharb, P., Lansbury, G. B., Molyneux, S. J., Mukherjee, D., Mullaney, J. R., Farina, E. P., S., Silpa, Thomson, A. P., Ward, S. R.
We present the first results from the Quasar Feedback Survey, a sample of 42 z<0.2, [O III] luminous AGN (L[O III]>10^42.1 ergs/s) with moderate radio luminosities (i.e. L(1.4GHz)>10^23.4 W/Hz; median L(1.4GHz)=5.9x10^23 W/Hz). Using high spatial res
Externí odkaz:
http://arxiv.org/abs/2103.00014
Autor:
Congiu, E., Kharb, P., Tarchi, A., Berton, M., Caccianiga, A., Chen, S., Crepaldi, L., Di Mille, F., Järvelä, E., Jarvis, M. E., La Mura, G., Vietri, A.
In this paper, we present the analysis of new radio and optical observations of the narrow-line Seyfert 1 galaxy Mrk 783. 1.6 GHz observations performed with the e-MERLIN interferometer confirm the presence of the diffuse emission previously observed
Externí odkaz:
http://arxiv.org/abs/2009.13529
We present the results from 685 MHz observations with the upgraded Giant Metrewave Radio Telescope (uGMRT) of 22 quasars belonging to the Palomar-Green (PG) quasar sample. Only four sources reveal extended radio structures on $\sim$10-30 kpc scales,
Externí odkaz:
http://arxiv.org/abs/2009.12264
Autor:
Jarvis, M. E., Harrison, C. M., Mainieri, V., Rivera, G. Calistro, Jethwa, P., Zhang, Z. -Y., Alexander, D. M., Circosta, C., Costa, T., De Breuck, C., Kakkad, D., Kharb, P., Lansbury, G. B., Thomson, A. P.
We use a sample of powerful z~0.1 type 2 quasars ('obscured'; log[L(AGN)/erg/s]>~45), which host kiloparsec-scale ionized outflows and jets, to identify possible signatures of AGN feedback on the total molecular gas reservoirs of their host galaxies.
Externí odkaz:
http://arxiv.org/abs/2007.10351
Publikováno v:
Proc. IAU 15 (2020) 203-211
Establishing the role of active galactic nuclei (AGN) during the formation of galaxies remains one of the greatest challenges of galaxy formation theory. Towards addressing this, we summarise our recent work investigating: (1) the physical drivers of
Externí odkaz:
http://arxiv.org/abs/2006.01196
Publikováno v:
A&A 631, A132 (2019)
Using a sample of 2922 z<0.2, spectroscopically-identified Active Galactic Nuclei (AGN) we explore the relationship between radio size and the prevalence of extreme ionised outflows, as traced using broad [O III] emission-line profiles in Sloan Digit
Externí odkaz:
http://arxiv.org/abs/1909.05260
Autor:
Jarvis, M. E., Harrison, C. M., Thomson, A. P., Circosta, C., Mainieri, V., Alexander, D. M., Edge, A. C., Lansbury, G. B., Molyneux, S. J., Mullaney, J. R.
We present 1-7 GHz high-resolution radio imaging (VLA and e-MERLIN) and spatially-resolved ionized gas kinematics for ten z<0.2 type~2 `obscured' quasars (log [L(AGN)/(erg/s)]>~45) with moderate radio luminosities (log [L(1.4GHz)/(W/Hz)]=23.3-24.4).
Externí odkaz:
http://arxiv.org/abs/1902.07727
Autor:
Lansbury, G. B., Jarvis, M. E., Harrison, C. M., Alexander, D. M., Del Moro, A., Edge, A. C., Mullaney, J. R., Thomson, A.
We present the X-ray properties of the 'Teacup AGN' (SDSS J1430+1339), a $z=0.085$ type 2 quasar which is interacting dramatically with its host galaxy. Spectral modelling of the central quasar reveals a powerful, highly obscured AGN with a column de
Externí odkaz:
http://arxiv.org/abs/1803.00009