Zobrazeno 1 - 10
of 342
pro vyhledávání: '"STEVENS, I. A."'
Autor:
Dullo, B. T., Knapen, J. H., Baldi, R. D., Williams, D. R. A., Beswick, R. J., McHardy, I. M., Green, D. A., de Paz, A. Gil, Aalto, S., Alberdi, A., Argo, M. K., Gallagher, J. S., Klöckner, H. -R., Marcaide, J. M., Mutie, I. M., Saikia, D. J., Saikia, P., Stevens, I. R., Torrejón, S.
[Abridged] The relation between nuclear star clusters (NSCs) and the growth of the central SMBHs, as well as their connection to the properties of the host galaxies, is crucial for understanding the evolution of galaxies. Recent observations have rev
Externí odkaz:
http://arxiv.org/abs/2407.10850
Autor:
Dullo, B. T., Knapen, J. H., Beswick, R. J., Baldi, R. D., Williams, D. R. A., McHardy, I. M., Green, D. A., de Paz, A. Gil, Aalto, S., Alberdi, A., Argo, M. K., Klöckner, H. -R., Mutie, I. M., Saikia, D. J., Saikia, P., Stevens, I. R.
Multiwavelength studies indicate that nuclear activity and bulge properties are closely related, but the details remain unclear. To study this further, we combine $Hubble~Space~Telescope$ bulge structural and photometric properties with 1.5 GHz, $e$-
Externí odkaz:
http://arxiv.org/abs/2304.06642
Autor:
Damineli, A., Hillier, D. J., Navarete, F., Moffat, A. F. J., Weigelt, G., Corcoran, M. F., Gull, T. R., Richardson, N. D., Ho, T. P., Madura, T. I., Espinoza-Galeas, D., Hartman, H., Morris, P., Pickett, C. S., Stevens, I. R., Russell, C. M. P., Hamaguchi, K., Jablonski, F. J., Teodoro, M., McGee, P., Cacella, P., Heathcote, B., Harrison, K., Johnston, M., Bohlsen, T., Di Scala, G.
Eta Carinae ($\eta$\,Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has changed -- there has been an increase in observed continuum fluxes and a decrease in FeII and HI emission l
Externí odkaz:
http://arxiv.org/abs/2211.01445
Autor:
Williams, D. R. A., Pahari, M., Baldi, R. D., McHardy, I. M., Mathur, S., Beswick, R. J., Beri, A., Boorman, P., Aalto, S., Alberdi, A., Argo, M. K., Dullo, B. T., Fenech, D. M., Green, D. A., Knapen, J. H., Martí-Vidal, I., Moldon, J., Mundell, C. G., Muxlow, T. W. B., Panessa, F., Pérez-Torres, M., Saikia, P., Shankar, F., Stevens, I. R., Uttley, P.
All 280 of the statistically-complete Palomar sample of nearby (<120 Mpc) galaxies dec > 20 degrees have been observed at 1.5 GHz as part of the LeMMINGs e-MERLIN legacy survey. Here, we present Chandra X-ray observations of the nuclei of 213 of thes
Externí odkaz:
http://arxiv.org/abs/2111.09077
Autor:
Pollock, A. M. T., Corcoran, M. F., Stevens, I. R., Russell, C. M. P., Hamaguchi, K., Williams, P. M., Moffat, A. F. J., Weigelt, G., Shenavrin, V., Richardson, N. D., Espinoza, D., Drake, S. A.
WR 140 is a long-period, highly eccentric Wolf-Rayet star binary system with exceptionally well-determined orbital and stellar parameters. Bright, variable X-ray emission is generated in shocks produced by the collision of the winds of the WC7pd+O5.5
Externí odkaz:
http://arxiv.org/abs/2109.10350
Autor:
Baldi, R. D., Williams, D. R. A., Beswick, R. J., McHardy, I., Dullo, B. T., Knapen, J. H., Zanisi, L., Argo, M. K., Aalto, S., Alberdi, A., Baan, W. A., Bendo, G. J., Fenech, D. M., Green, D. A., Klöckner, H. -R., Körding, E., Maccarone, T. J., Marcaide, J. M., Mutie, I., Panessa, F., Pérez-Torres, M. A., Romero-Cañizales, C., Saikia, D. J., Saikia, P., Shankar, F., Spencer, R. E., Stevens, I. R., Uttley, P., Brinks, E., Corbel, S., Martí-Vidal, I., Mundell, C. G., Pahari, M., Ward, M. J.
What determines the nuclear radio emission in local galaxies? We combine optical [O III] line emission, robust black hole (BH) mass estimates, and high-resolution e-MERLIN 1.5-GHz data, from the LeMMINGs survey, of a statistically-complete sample of
Externí odkaz:
http://arxiv.org/abs/2109.06205
Autor:
Damineli, A., Navarete, F., Hillier, D. J., Moffat, A. F. J., Corcoran, M. F., Gull, T. R., Richardson, N. D., Weigelt, G., Morris, P. W., Stevens, I.
Eta Carinae is a massive interacting binary system shrouded in a complex circumstellar environment whose evolution is the source of the long-term brightening observed during the last 80 years. An occulter, acting as a natural coronagraph, impacts obs
Externí odkaz:
http://arxiv.org/abs/2105.00590
Autor:
Baldi, R. D., Williams, D. R. A., McHardy, I. M., Beswick, R. J., Brinks, E., Dullo, B. T., Knapen, J. H., Argo, M. K., Aalto, S., Alberdi, A., Baan, W. A., Bendo, G. J., Corbel, S., Fenech, D. M., Gallagher, J. S., Green, D. A., Kennicutt, R. C., Klöckner, H. -R., Körding, E., Maccarone, T. J., Muxlow, T. W. B., Mundell, C. G., Panessa, F., Peck, A. B., Pérez-Torres, M. A., Romero-Cañizales, C., Saikia, P., Shankar, F., Spencer, R. E., Stevens, I. R., Varenius, E., Ward, M. J., Yates, J.
We present the second data release of high-resolution ($\leq0.2$ arcsec) 1.5-GHz radio images of 177 nearby galaxies from the Palomar sample, observed with the e-MERLIN array, as part of the LeMMINGs (Legacy e-MERLIN Multi-band Imaging of Nearby Gala
Externí odkaz:
http://arxiv.org/abs/2011.03062
Autor:
Morford, J. C., Fenech, D. M., Prinja, R. K., Blomme, R., Yates, J. A., Drake, J. J., Eyres, S. P. S., Richards, A. M. S., Stevens, I. R., Wright, N. J., Clark, J. S., Dougherty, S., Pittard, J. M., Smith, H., Vink, J. S.
Publikováno v:
A&A 637, A64 (2020)
The role of massive stars is central to an understanding of galactic ecology. It is important to establish the details of how massive stars provide radiative, chemical, and mechanical feedback in galaxies. Central to these issues is an understanding
Externí odkaz:
http://arxiv.org/abs/2001.06363
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