David Axon

O/IR Polarimetry for the 2010 Decade (GAN): Science at the Edge, Sharp Tools for All (2009)

Clemens, Dan, Adamson, Andy, Axon, David, De Buizer, James, Cellino, Alberto, ...

Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the field of Galactic science. Community-based White Paper to Astro2010 in response to the...

O/IR Polarimetry for the 2010 Decade (PSF): Science at the Edge, Sharp Tools for All (2009)

Clemens, Dan, Adamson, Andy, Axon, David, De Buizer, James, Cellino, Alberto, ...

Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the fields of planetary systems and star formation. Community-based White Paper to...

O/IR Polarimetry for the 2010 Decade (CGT): Science at the Edge, Sharp Tools for All (2009)

Hines, Dean C., Packham, Christopher C., Adamson, Andy, Antonucci, Robert, Axon, David, ...

Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the field of extragalactic astrophysics. Community-based White Paper to Astro2010 in...

Understanding Polarized Foreground from Dust: Towards Reliable Measurements of CMB Polarization (2009)

Lazarian, Alex, Clemens, Dan, Adamson, Andy, Axon, David, De Buizer, James, ...

Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the field of cosmology. Community-based White Paper to Astro2010 in response to the call...

Unveiling the nature of Seyfert nuclei with 1 - 100 micron spectral energy distributions (2008)

Buchanan, Catherine, Gallimore, Jack, Dea, Christopher, Baum, Stefi, Axon, David, Robinson, Andrew, ...

Talk given at "The Central Kiloparsec: Active Galactic Nuclei and Their Hosts", Ierapetra, Crete, 4-6 June, 2008. To appear in Volume 79 of the Memorie della Societa Astronomica Italiana. 4 pages, 5...

Weighing black holes from zero to high redshift (2008)

Marconi, Alessandro, Axon, David, Maiolino, Roberto, Nagao, T., Pietrini, P., Robinson, Andrew, ...

Proceedings of "The Central Kiloparsec: Active Galactic Nuclei and Their Hosts", Ierapetra, Crete, 4-6 June, 2008. To appear in Volume 79 of the Memorie della Societa' Astronomica Italiana. 4 pages,...

The effect of radiation pressure on virial black hole mass estimates and the case of Narrow Line Seyfert 1 galaxies (2008)

Marconi, Alessandro, Axon, David, Maiolino, Roberto, Nagao, Tohru, Pastorini, Guia, Pietrini, Paola, ...

We consider the effect of radiation pressure from ionizing photons on black hole (BH) mass estimates based on the application of the virial theorem to broad emission lines in AGN spectra. BH masses...

The NICMOS polarimetric calibration (2006)

Batcheldor, Dan, Robinson, Andrew, Axon, David, Hines, Dean, Sparks, William, Tadhunter, Clive

Achived in: arXiv:astro-ph/0601541 v1 24 Jan 2006 AND Space Telescope Science Institute Eprint #1710

Hubble Space Telescope Near-Infrared Snapshot Survey of 3CR radio source counterparts at low redshift (2006)

Madrid, Juan P., Chiaberge, Marco, Floyd, David, Sparks, William B., Macchetto, Duccio, Miley, George K., ...

We present newly acquired images of the near-infrared counterpart of 3CR radio sources. All the sources were selected to have a redshift of less than 0.3 to allow us to obtain the highest spatial...

The jet and circumnuclear environment of 3C 293 (2006)

Floyd, David, Perlman, Eric, Leahy, J. Patrick, Beswick, RJ, Jackson, Neal, Sparks, William, ...

Also archived in: arXiv:astro-ph/0510853 v1 31 Oct 2005 AND Space Telescope Science Institute Eprint #1703

The jet and circumnuclear environment of 3C 293 (2006)

Floyd, David, Perlman, Eric, Leahy, J. Patrick, Beswick, Rob, Jackson, Neal, Sparks, William, ...

Also archived in: arXiv:astro-ph/0510853 v1 31 Oct 2005 AND Space Telescope Science Institute Eprint #1703

Infrared SEDs of Seyfert galaxies: Starbursts and the nature of the obscuring medium (2006)

Buchanan, Catherine, Gallimore, Jack, O’Dea, Christopher, Baum, Stefi, Axon, David, Robinson, Andrew, ...

"Infrared Diagnostics of Galaxy Evolution," Proceedings of the Spitzer Science Center 2005 Conference. Astronomical Society of the Pacific Conference Series. Held at the Pasadena Hilton, Pasadena,...

Infrared SEDs of Seyfert galaxies: Starbursts and the nature of the obscuring medium (2006)

Buchanan, Catherine, Gallimore, Jack, O’Dea, Christopher, Baum, Stefi, Axon, David, Robinson, Andrew, ...

"Infrared Diagnostics of Galaxy Evolution," Proceedings of the Spitzer Science Center 2005 Conference. Astronomical Society of the Pacific Conference Series. Held at the Pasadena Hilton, Pasadena,...

An optical-IR jet in 3C133 (2006)

Floyd, David J. E., Laing, Robert, Chiaberge, Marco, Perlman, Eric, Sparks, William, Macchetto, Duccio, ...

We report the discovery of a new optical-IR synchrotron jet in the radio galaxy 3C133 from our HST/NICMOS snapshot survey. The jet and eastern hotspot are well resolved, and visible at both optical...

An optical-IR jet in 3C 133 (2005)

Floyd, David, Laing, Robert, Chiaberge, Marco, Perlman, Eric, Sparks, William, Macchetto, Duccio, ...

Also archived in: arXiv:astro-ph/0602021 v1 1 Feb 2006 AND Space Telescope Science Institute Eprint #1711

An optical-IR jet in 3C 133 (2005)

Floyd, David, Laing, Robert, Chiaberge, Marco, Perlman, Eric, Sparks, William, Macchetto, Duccio, ...

Also archived in: arXiv:astro-ph/0602021 v1 1 Feb 2006 AND Space Telescope Science Institute Eprint #1711

The nature of the HE0450-2958 System (2005)

Merritt, David, Bergmann, Thaisa Storchi, Robinson, Andrew, Batcheldor, Dan, Axon, David, Fernandes, Roberto Cid

Magain et al. (2005) argued that the host galaxy of the quasar in HE0450-2958 is substantially under-luminous given the likely mass of its nuclear black hole. Using kinematical information from the...

The Warped Nuclear Disk of Radio Galaxy 3C 449 (2005)

Tremblay, Grant R., Quillen, Alice C., Floyd, David J. E., Noel-Storr, Jacob, Baum, Stefi A., Axon, David, ...

Among radio galaxies containing nuclear dust disks, the bipolar jet axis is generally observed to be perpendicular to the disk major axis. The FR I radio source 3C 449 is an outlier to this...

The supermassive black hole in the Seyfert 2 galaxy NGC 5252 (2004)

Capetti, Alessandro, Marconi, Alessandro, Macchetto, Duccio, Axon, David

We present results from HST/STIS long-slit spectroscopy of the gas motions in the nuclear region of the Seyfert 2 galaxy NGC 5252. The observed velocity field is consistent with gas in regular...

Hubble Space Telescope Observations of NGC 6240: a Case Study of an Ultra-Luminous Infrared Galaxy with Obscured Activity (2003)

Gerssen, Joris, Van Der Marel, Roeland P., Axon, David, Mihos, J. Christopher, Hernquist, Lars, Barnes, Joshua E.

We present results from an HST study of the morphology and kinematics of NGC 6240. This merging galaxy with a double nucleus is one of the nearest and best-studied ultraluminous infrared galaxies....

Spectropolarimetry and the geometry of Type 1 Seyfert nuclei (2003)

Robinson, Andy, Axon, David, Smith, James

Also archived in: arXiv:astro-ph/0211207 v1 11 Nov 2002 AND "Star Formation Through Time," Proceedings of A Conference to Honour Roberto J. Terlevich. Astronomical Society of the Pacific Conference...

Spectropolarimetry and the geometry of Type 1 Seyfert nuclei (2003)

Robinson, Andrew, Axon, David, Smith, James

Also archived in: arXiv:astro-ph/0211207 v1 11 Nov 2002 AND "Star Formation Through Time," Proceedings of A Conference to Honour Roberto J. Terlevich. Astronomical Society of the Pacific Conference...

HST [Hubble Space Telescope] observations of NGC 6240 (2001)

Gerssen, Joris, Van Der Marel, Roeland, Axon, David, Mihos, Christopher, Hernquist, Lars, Barnes, Joshua

"The Central kiloparsec of Starbursts and AGN: La Palma Connection". Proceedings of the Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific. Held at Hotel...

The black hole mass vs bulge mass relationship in spiral galaxies (2001)

Marconi, Alessandro, Axon, David, Atkinson, John, Binney, James, Capetti, Alessandro, Carollo, C. Marcella, ...

"Galaxies and their Constituents at the Highest Angular Resolutions", Proceedings of the International Astronomical Union Symposium #205. Astronomical Society of the Pacific. Held in Manchester,...

Peering through the dust: Evidence for a supermassive Black Hole at the nucleus of Centaurus A from VLT IR spectroscopy (2000)

Marconi, Alessandro, Capetti, Alessandro, Axon, David, Koekemoer, Anton, Macchetto, Duccio, Schreier, Ethan

We used the near infrared spectrometer ISAAC at the ESO 'Very Large Telescope' to map the velocity field of Centaurus A (NGC 5128) at several position angles and locations in the central 20" of the...

Unveiling the Active Nucleus of Centaurus A (1999)

Marconi, Alessandro, Schreier, Ethan, Koekemoer, Anton, Capetti, Alessandro, Axon, David, Macchetto, Duccio, ...

We report new HST WFPC2 and NICMOS observations of the center of the nearest radio galaxy Centaurus A (NGC 5128) and discuss their implications for our understanding of the active nucleus and jet. We...

PKS2250-41 and the role of jet-cloud interactions in powerful radio galaxies (1999)

Villar-Martin, Montse, Tadhunter, Clive, Morganti, Raffaella, Axon, David, Koekemoer, Anton

Also archived in: arXiv:astro-ph/9901201 v1 15 Jan 1999 AND Proceedings of the III National Astronomical Meeting of Spain, March 1998.

PKS2250-41 and the role of jet-cloud interactions in powerful radio galaxies (1999)

Villar-Martin, Montse, Tadhunter, Clive, Morganti, Raffaella, Axon, David, Koekemoer, Anton

Also archived in: arXiv:astro-ph/9901201 v1 15 Jan 1999 AND Proceedings of the III National Astronomical Meeting of Spain, March 1998.

Evidence for a 20pc disk at the nucleus of Centaurus A (1998)

Schreier, Ethan, Marconi, Alessandro, Axon, David, Caon, Nicola, Macchetto, Duccio, Capetti, Alessandro, ...

Also archived in: arXiv:astro-ph/9804098 v1 9 Apr 1998 AND Space Telescope Science Institute Preprint #1245

Evidence for a 20pc disk at the nucleus of Centaurus A (1998)

Schreier, Ethan, Marconi, Alessandro, Axon, David, Caon, Nicola, Macchetto, Duccio, Capetti, Alessandro, ...

Also archived in: arXiv:astro-ph/9804098 v1 9 Apr 1998 AND Space Telescope Science Institute Preprint #1245

Evidence for a 20pc disk at the nucleus of Centaurus A (1998)

Schreier, Ethan, Marconi, Alessandro, Axon, David, Caon, Nicola, Macchetto, Duccio, Capetti, Alessandro, ...

We report HST NICMOS observations of the central region of NGC 5128 at 2.2mic and in Paschen Alpha (PA). The continuum images show extended emission typical of an elliptical galaxy and a strong...

IRAS 0421+0400: Jets crossing an ISM/IGM interface? (1996)

Steffen, Wolfgang, Holloway, Anthony, Pedlar, Alan, Axon, David

"Energy Transport in Radio Galaxies and Quasars", Proceedings of a workshop part of the Astronomical Society of the Pacific Conference Series. Astronomical Society of the Pacific. Held in Tuscaloosa,...

Polarization profiles of scattered emission lines. II. Upstream dust scattering in the HH 1 jet (1994)

Henney, William, Raga, Alejandro, Axon, David

Also archived in: arXiv:astro-ph/9403026 v1 11 Mar 1994 AND Instituto de Astronomía de la Universidad Nacional Autónoma de México contribution #340

Polarization profiles of scattered emission lines. II. Upstream dust scattering in the HH 1 jet (1994)

Henney, William, Raga, Alejandro, Axon, David

Also archived in: arXiv:astro-ph/9403026 v1 11 Mar 1994 AND Instituto de Astronomía de la Universidad Nacional Autónoma de México contribution #340