Zobrazeno 1 - 10
of 140
pro vyhledávání: '"David Axon"'
Autor:
Massimo Stiavelli, Zlatan Tsvetanov, David Axon, J. Gerssen, L. Dressel, A. Alonso-Herrero, Michael R. Merrifield, Warren M. Sparks, Holland C. Ford, M. A. Hughes, J. L. Collett, James Binney, Dan Batcheldor, A. Marconi, J. Atkinson, Alessandro Capetti, R. P. van der Marel, Witold Maciejewski, D. Macchetto, C. Scarlata, C. M. Carollo
We present Space Telescope Imaging Spectrograph emission-line spectra of the central regions of the spiral galaxies NGC 1300 and NGC 2748. From the derived kinematics of the nuclear gas we have found evidence for central supermassive black holes in b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59ab8a69add3e990836d500273510ace
http://doc.rero.ch/record/295568/files/359-2-504.pdf
http://doc.rero.ch/record/295568/files/359-2-504.pdf
Autor:
J. Gerssen, Warren M. Sparks, M. Ruiz, M. A. Hughes, A. Marconi, James Binney, L. Dressel, Marcella Carollo, Dan Batcheldor, Michael R. Merrifield, Zlatan Tsvetanov, Witold Maciejewski, D. Macchetto, J. Atkinson, C. Scarlata, Alessandro Capetti, Massimo Stiavelli, R. P. van der Marel, David Axon, A. Alonso-Herrero
We present surface photometry for the central regions of a sample of 48 spiral galaxies (mostly unbarred and barred of types Sbc or Sc) observed with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. Surface brightness pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24c202de16cbc1a63f5e7815a1bfa4b4
https://ora.ox.ac.uk/objects/uuid:b212fd77-8e7b-406f-8231-8146ef4ff96a
https://ora.ox.ac.uk/objects/uuid:b212fd77-8e7b-406f-8231-8146ef4ff96a
Autor:
Roeland P. van der Marel, M. A. Hughes, William B. Sparks, J. Atkinson, Claudia Scarlata, Michael R. Merrifield, Zlatan Tsvetanov, C. Marcella Carollo, Joris Gerssen, Holland C. Ford, Duccio Macchetto, A. Marconi, L. Dressel, Massimo Stiavelli, James Binney, Witold Maciejewski, Alessandro Capetti, David Axon
Publikováno v:
NASA Astrophysics Data System
We describe an on-going HST program aimed at determining the relationship between the nuclear black hole mass and bulge mass in spiral galaxies. We have selected a volume limited sample of 54 nearby spiral galaxies for which we already have ground ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1502acd3b552cb277a1f6cc1cc5a993c
https://ora.ox.ac.uk/objects/uuid:6c8f5122-d3cd-4b81-bb0b-a44755567dea
https://ora.ox.ac.uk/objects/uuid:6c8f5122-d3cd-4b81-bb0b-a44755567dea
Autor:
Chris Packham, Edgar A. Ramírez, David Axon, Dan Batcheldor, Clive Tadhunter, William B. Sparks, Simon A. Young
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 399:2165-2171
We report the analysis of near-infrared (near-IR) imaging, polarimetric and spectroscopic observations of the powerful radio galaxy 3C 433 (z = 0.1016), obtained with the Hubble Space Telescope (HST) and the United Kingdom Infrared Telescope. The hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6faf328e679936c9b176324bfb6e284d
https://doi.org/10.1111/j.1365-2966.2009.15417.x
https://doi.org/10.1111/j.1365-2966.2009.15417.x
Autor:
I. M. van Bemmel, D. Dicken, R. M. González Delgado, Katherine J. Inskip, Catherine L. Buchanan, Peter Barthel, Clive Tadhunter, J. Holt, David Axon, R. Morganti
Publikováno v:
Astrophysical Journal, 661(1), L13-L16. IOP PUBLISHING LTD
The uncertainty surrounding the nature of the heating mechanism for the dust that emits at mid- to far-IR (MFIR) wavelengths in active galaxies limits our understanding of the links between active galactic nuclei (AGN) and galaxy evolution, as well a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d1040152fd2c26a5303c9ce3f1fa973
https://doi.org/10.1086/518421
https://doi.org/10.1086/518421
Autor:
David Merritt, Claudia Scarlata, William B. Sparks, David Axon, Michael R. Merrifield, Dan Batcheldor, James Binney, M. A. Hughes, A. Capetti, Alessandro Marconi
Publikováno v:
The Astrophysical Journal Supplement Series. 160:76-86
We have obtained Integral Field Spectroscopy for 23 spiral bulges using INTEGRAL on the William Herschel Telescope and SPIRAL on the Anglo-Australian Telescope. This is the first 2D survey directed solely at the bulges of spiral galaxies. Eleven gala
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccf405498031b427753aae301cdf6a6c
https://doi.org/10.1086/431483
https://doi.org/10.1086/431483
Autor:
Stefi A. Baum, Raffaella Morganti, R. Fanti, Richard Gelderman, Peter Barthel, Alessandro Capetti, David Axon, Anton M. Koekemoer, Clive Tadhunter, Christopher P. O'Dea, W. H. de Vries
Publikováno v:
Publications of the Astronomical Society of Australia, 20(1), 88-93. Cambridge University Press
We have obtained HST/STIS long slit spectroscopy of the aligned emission line nebulae in three compact steep spectrum (CSS) radio sources - 3C67, 3C 277.1, and 3C 303.1. We find systematic offsets (similar to 300 - 500 km s(-1)) of the emission line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cba259f3336bb88ac90828abf78ac76
https://doi.org/10.1071/as03006
https://doi.org/10.1071/as03006
Autor:
Raffaella Morganti, Alessandro Capetti, Willem H. De Vries, Christopher P. O'Dea, David Axon, Anton M. Koekemoer, Richard Gelderman, Clive Tadhunter, Peter Barthel, Stefi A. Baum, Roberto Fanti
Publikováno v:
The Astronomical Journal. 123:2333-2351
We have obtained Hubble Space Telescope Space Telescope Imaging Spectrograph long-slit spectroscopy of the aligned emission-line nebulae in three compact steep-spectrum radio sources: 3C 67, 277.1, and 303.1. We find systematic offsets (~300–500 km
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb8175581b9d43c75caa80fdbaffc907
https://doi.org/10.1086/340076
https://doi.org/10.1086/340076
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 319:685-699
We present optical spectropolarimetric observations of three radio-loud broad-line active galactic nuclei: 3C 332, 3C 351 and 4C 73.18, together with new observations of 3C 390.3, which we observed previously. Intrinsically polarized broad Hα emissi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd8b277e398f1ee239b1ed87935a5156
https://doi.org/10.1046/j.1365-8711.2000.03658.x
https://doi.org/10.1046/j.1365-8711.2000.03658.x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 323:965-987
We present the result obtained from a study, based on long-slit spectroscopy, of the kinematics and ionization mechanisms of the line-emitting gas for a sample of four high/intermediate-redshift radio galaxies. In two of the galaxies (3C352 and 3C435
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea3597f693135d3992b34b4b63426884
https://doi.org/10.1046/j.1365-8711.2001.04334.x
https://doi.org/10.1046/j.1365-8711.2001.04334.x