Chemical Evolution of High-Redshift Radio Galaxies (2009)
Matsuoka, Kenta, Nagao, Tohru, Maiolino, Roberto, Marconi, Alessandro, Taniguchi, Yoshiaki
We present new deep optical spectra of 9 high-z radio galaxies (HzRGs) at z > 2.7 obtained with FORS2 on VLT. These rest-frame ultraviolet spectra are used to infer the metallicity of the narrow-line...
Science case for 1 mas spectro-imagining in the near-infrared (2008)
Garcia, Paulo J V, Berger, Jean-Philippe, Marconi, Alessandro, Krivov, Alexander, Chiavassa, Andrea, Aringer, Bernard, ...
Optical and Infrared Interferometry.
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,...
Marconi, Alessandro, Axon, David, Maiolino, Roberto, Nagao, Tohru, Guia, Pastorini, Pietrini, Paola, ...
Also archived in: arXiv:0802.2021 v1 14 Feb 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...
Science case for 1 mas spectro-imagining in the near-infrared (2008)
Garcia, Paulo J. V., Berger, Jean-Philippe, Marconi, Alessandro, Krivov, Alexander, Chiavassa, Andrea, Aringer, Bernard, ...
We present the work developed within the science team of the Very Large Telescope Interferometer Spectro-Imager (VSI) during the Phase A studies. VSI aims at delivering ~ 1 milliarcsecond resolution...
De Francesco, Giovanna, Capetti, Alessandro, Marconi, Alessandro
We present results from a kinematical study of the gas in the nucleus of a sample of three LINER galaxies, obtained from archival HST/STIS long-slit spectra. We found that, while for the elliptical...
Unveiling the Launching Region of YSO Jets with AMBER (2007)
Francesca Bacciotti, Leonardo Testi, Alessandro Marconi, Thomas P. Ray, Catherine Dougados
The interplay between accretion and ejection in the environment of young stellar objects (YSOs) is believed to be a crucial element in the star formation process. Since most of the properties of the...
Storchi-Bergmann, Thaisa, Dors Jr., Oli L., Riffel, Rogemar A., Fathi, Kambiz, Axon, David J., Robinson, Andrew, ...
We report the discovery of gas streaming motions along nuclear spiral arms towards the LINER nucleus of the galaxy NGC 6951. The observations, obtained using the GMOS integral field spectrograph on...
Batcheldor, Dan, Marconi, Alessandro, Merritt, David, Axon, David
Also archived in: arXiv:astro-ph/0610264 v2 May 29 2007
Supermassive black holes in the Sbc spiral galaxies NGC 3310, NGC 4303 and NGC 4258⋆ (2007)
Pastorini, Guia, Marconi, Alessandro, Capetti, Alessandro, Axon, David, Alonso-Herrero, Almudena, Atkinson, John, ...
Also archived in: arXiv:astro-ph/0703149 v1 Mar 7 2007
Supermassive black holes in the Sbc spiral galaxies NGC 3310, NGC 4303 and NGC 4258 (2007)
Pastorini, Guia, Marconi, Alessandro, Capetti, Alessandro, Axon, David J., Alonso-Herrero, Almudena, Atkinson, John, ...
We present new Space Telescope Imaging Spectrograph (STIS) observations of three spiral galaxies, NGC 4303, NGC 3310 and NGC 4258. The bright optical emission lines H$\alpha$ $\lambda$ $6564 \AA$,...
Nagao, Tohru, Murayama, Takashi, Maiolino, Roberto, Marconi, Alessandro, Kashikawa, Nobunari, Ajiki, Masaru, ...
We report new follow-up spectroscopy of i-dropout galaxies with an NB921-band depression found in the Subaru Deep Field. The NB921-depressed i-dropout selection method is expected to select galaxies...
Metallicity Evolution of Active Galactic Nuclei (2006)
Nagao, Tohru, Maiolino, Roberto, Marconi, Alessandro
In this contribution we report our recent investigation of the gas metallicity in active galactic nuclei and its dependence on luminosity and redshift. We compile large spectroscopic datasets of...
Batcheldor, Dan, Marconi, Alessandro, Merritt, David, Axon, David J.
Using the extended J, H and K magnitudes provided by the 2MASS data archive, we consider the position of brightest cluster galaxies (BCGs) in the observed relations between inferred supermassive...
Measuring supermassive black holes with gas kinematics: the active S0 galaxy NGC 3998 (2006)
De Francesco, Giovanna, Capetti, Alessandro, Marconi, Alessandro
We present results from a kinematical study of the gas in the nucleus of the active S0 galaxy NGC 3998 obtained from archival HST/STIS long-slit spectra. We analyzed the emission lines profiles and...
Extra-osseous osteochondroma-like soft tissue mass of the patello-femoral space (2006)
Oliva, Francesco, Marconi, Alessandro, Fratoni, Stefano, Maffulli, Nicola
Abstract Background Extraskeletal cartilaginous tumors are uncommon. Osteochondromas usually arise from the metaphyseal region of the growing skeleton. Case presentation A 53 year old man presented...
Streaming motions towards the supermassive black hole in NGC 1097 (2006)
Fathi, Kambiz, Storchi-Bergmann, Thaisa, Riffel, Rogemar, Winge, Claudia, Axon, David, Robinson, Andrew, ...
Also archived in: arXiv:astro-ph/0602002 v1 31 Jan 2006
Streaming motions towards the supermassive black hole in NGC 1097 (2006)
Fathi, Kambiz, Storchi-Bergmann, Thaisa, Riffel, Rogemar, Winge, Claudia, Axon, David, Robinson, Andrew, ...
Also archived in: arXiv:astro-ph/0602002 v1 31 Jan 2006
Storchi-Bergmann, Thaisa, Dors, Oli, Rogemar, Riffel, Fathi, Kambiz, Axon, David, Robinson, Andrew, ...
Also archived in: arXiv:0707.4176 v1 27 Jul 2007
Gas metallicity diagnostics in star-forming galaxies (2006)
Nagao, Tohru, Maiolino, Roberto, Marconi, Alessandro
Generally the gas metallicity in distant galaxies can only be inferred by using a few prominent emission lines. Various theoretical models have been used to predict the relationship between emission...
The Supermassive black hole in Centaurus A: A Benchmark for gas kinematical measurements (2006)
Marconi, Alessandro, Pastorini, Guia, Pacini, Franco, Axon, David, Capetti, Alessandro, Macchetto, Duccio, ...
Also archived in: arXiv:astro-ph/0507435 v3 10 Nov 2005
The supermassive black hole in Centaurus A: A Benchmark for gas kinematical measurements (2006)
Marconi, Alessandro, Pastorini, Guia, Pacini, Franco, Axon, David, Capetti, Alessandro, Macchetto, Duccio, ...
Also archived in: arXiv:astro-ph/0507435 v3 10 Nov 2005
Streaming Motions Towards the Supermassive Black Hole in NGC 1097 (2006)
Fathi, Kambiz, Storchi-Bergmann, Thaisa, Riffel, Rogemar A., Winge, Claudia, Axon, David J., Robinson, Andrew, ...
We have used GMOS-IFU and high resolution HST-ACS observations to map, in unprecedented detail, the gas velocity field and structure within the 0.7 kpc circumnuclear ring of the SBb LINER/Seyfert 1...
The Evolution of the Broad-Line Region among SDSS Quasars (2005)
Nagao, Tohru, Marconi, Alessandro, Maiolino, Roberto
Based on 5344 quasar spectra taken from the SDSS Data Release 2, the dependences of various emission-line flux ratios on redshift and quasar luminosity are investigated in the ranges 2.0 < z < 4.5...
Integral field spectroscopy of 23 spiral bulges (2005)
Batcheldor, Dan, Axon, David, Merritt, David, Hughes, M., Marconi, Alessandro, Binney, James, ...
Also archived In: astro-ph/0504660 v1 29 Apr 2005
Gas Metallicity in the Narrow-Line Regions of High-Redshift Active Galactic Nuclei (2005)
Nagao, Tohru, Maiolino, Roberto, Marconi, Alessandro
We analyze optical (UV rest-frame) spectra of X-ray selected narrow-line QSOs at redshift 1.5 < z < 3.7 found in the Chandra Deep Field South and of narrow-line radio galaxies at redshift 1.2 < z <...
Nagao, Tohru, Motohara, Kentaro, Maiolino, Roberto, Marconi, Alessandro, Taniguchi, Yoshiaki, Aoki, Kentaro, ...
We present a very deep near-infrared spectroscopic observation of a strong Ly_alpha emitter at z=6.33, SDF J132440.6+273607, which we used to search for HeII 1640. This emission line is expected if...
Garcia, Paulo J. V., Berger, Jean-Phillipe, Corradi, Romano, Forveille, Thierry, Harries, Tim, Henri, Gilles, ...
VITRUV is a second generation spectro-imager for the PRIMA enabled Very Large Telescope Interferometer. By combining simultaneously up to 8 telescopes VITRUV makes the VLTI up to 6 times more...
Hughes, MA, Axon, David, Atkinson, John, Alonso-Herrero, Almudena, Scarlata, Claudia, Marconi, Alessandro, ...
Also archived in: arXiv:astro-ph/0503693 v1 31 Mar 2005
Hughes, M., Axon, David, Atkinson, John, Alonso-Herrero, Almudena, Scarlata, Claudia, Marconi, Alessandro, ...
Also archived in: arXiv:astro-ph/0503693 v1 31 Mar 2005
Atkinson, John, Collett, JL, Marconi, Alessandro, Axon, David, Alonso-Herrero, Almudena, Batcheldor, Dan, ...
Also archived in: arXiv:astro-ph/0502573 v1 28 Feb 2005
Atkinson, John, Collett, J., Marconi, Alessandro, Axon, David, Alonso-Herrero, Almudena, Batcheldor, Dan, ...
Also archived in: arXiv:astro-ph/0502573 v1 28 Feb 2005
The supermassive black hole in the Seyfert 2 galaxy NGC 5252 (2005)
Capetti, Alessandro, Marconi, Alessandro, Macchetto, Duccio
Also archived in: arXiv:astro-ph/0411081 v1 3 Nov 2004
J. V. Garcia, Paulo, Berger, Jean-Phillipe, Corradi, Romano, Forveille, Thierry, Harries, Tim, Henri, Gilles, ...
VITRUV is a second generation spectro-imager for the PRIMA enabled Very Large Telescope Interferometer. By combining simultaneously up to 8 telescopes VITRUV makes the VLTI up to 6 times more...
J. V. Garcia, Paulo, Berger, Jean-Phillipe, Corradi, Romano, Forveille, Thierry, Harries, Tim, Henri, Gilles, ...
VITRUV is a second generation spectro-imager for the PRIMA enabled Very Large Telescope Interferometer. By combining simultaneously up to 8 telescopes VITRUV makes the VLTI up to 6 times more...
J. V. Garcia, Paulo, Berger, Jean-Phillipe, Corradi, Romano, Forveille, Thierry, Harries, Tim, Henri, Gilles, ...
VITRUV is a second generation spectro-imager for the PRIMA enabled Very Large Telescope Interferometer. By combining simultaneously up to 8 telescopes VITRUV makes the VLTI up to 6 times more...
J. V. Garcia, Paulo, Berger, Jean-Phillipe, Corradi, Romano, Forveille, Thierry, Harries, Tim, Henri, Gilles, ...
VITRUV is a second generation spectro-imager for the PRIMA enabled Very Large Telescope Interferometer. By combining simultaneously up to 8 telescopes VITRUV makes the VLTI up to 6 times more...
Woitas, Jens, Bacciotti, Francesca, Ray, Thomas P., Marconi, Alessandro, Coffey, Deirdre, Eisloeffel, Jochen
Using STIS on board the HST we have obtained a spectroscopic map of the bipolar jet from RW Aur. We find signatures of rotation within the first 300 AU of the jet (1.''5 from RW Aur). Both lobes...
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...
The supermassive black hole in the Seyfert 2 galaxy NGC 5252 (2004)
Capetti, Alessandro, Marconi, Alessandro, Macchetto, Duccio, Axon, David
Also archived in: arXiv:astro-ph/0411081 v1 3 Nov 2004
Scarlata, Claudia, Stiavelli, Massimo, Hughes, M, Axon, David, Alonso-Herrero, Almudena, Atkinson, John, ...
Also archived in: arXiv:astro-ph/0408435 v1 24 Aug 2004
Scarlata, Claudia, Stiavelli, Massimo, Hughes, M., Axon, David, Alonso-Herrero, Almudena, Atkinson, John, ...
Also archived in: arXiv:astro-ph/0408435 v1 24 Aug 2004
Tadhunter, Clive, Marconi, Alessandro, Axon, David, Wills, Karen, Robinson, TG, Jackson, Neal
Also archived in: arXiv:astro-ph/0302513 v1 25 Feb 2003
Tadhunter, Clive, Marconi, Alessandro, Axon, David, Wills, Karen, Robinson, TG, Jackson, Neal
Also archived in: arXiv:astro-ph/0302513 v1 25 Feb 2003
The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity (2003)
Marconi, Alessandro, Hunt, Leslie K.
We present new accurate near-infrared (NIR) spheroid (bulge) structural parameters obtained by two-dimensional image analysis for all galaxies with a direct black hole (BH) mass determination. As...
Is there really a black hole at the center of NGC 4041? - Constraints from gas kinematics (2003)
Marconi, Alessandro, Axon, David, Capetti, Alessandro, Maciejewski, Witold, Atkinson, John, Batcheldor, Dan, ...
Also archived in: arXiv:astro-ph/0211650 v1 29 Nov 2002
Extragalactic Astronomy with the VLTI: a new window on the Universe (2003)
Marconi, Alessandro, Maiolino, Roberto, Petrov, Romain G.
Interferometry in the optical and near infrared has so far played a marginal role in Extragalactic Astronomy. Active Galactic Nuclei are the brightest and most compact extragalactic sources,...
Black Holes in Galactic Nuclei: the Promise and the Facts (2002)
It has long been suspected that Active Galactic Nuclei are powered by accretion of matter onto massive black holes and this belief implies their presence in the nuclei of most nearby galaxies as...
Relic Black Holes and Type 2 Quasars (2001)
Marconi, Alessandro, Salvati, Marco
We follow the evolution of the Black Hole mass function in the assumption that mass accretion onto a massive BH is the powering mechanism of AGN activity. With reasonable assumptions suggested by...
Marconi, Alessandro, Capetti, Alessandro, Axon, David, Koekemoer, Anton, Macchetto, Duccio, Schreier, Ethan
Also archived in: arXiv:astro-ph/0011059 v1 2 Nov 2000
Marconi, Alessandro, Capetti, Alessandro, Axon, David, Koekemoer, Anton, Macchetto, Duccio, Schreier, Ethan
Also archived in: arXiv:astro-ph/0011059 v1 2 Nov 2000
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,...
AMBER : a near infrared focal instrument for the VLTI (2001)
G. Petrov, Romain, Malbet, Fabien, Richichi, Andrea, Hofmann, Karl-Heinz, Mourard, Denis, Agabi, Karim, ...
AMBER is the General User near-infrared focal instrument of the Very Large Telescope interferometer. Its specifications are based on three key programs on Young Stellar Objects, Active Galactic...
AMBER : a near infrared focal instrument for the VLTI (2001)
G. Petrov, Romain, Malbet, Fabien, Richichi, Andrea, Hofmann, Karl-Heinz, Mourard, Denis, Agabi, Karim, ...
AMBER is the General User near-infrared focal instrument of the Very Large Telescope interferometer. Its specifications are based on three key programs on Young Stellar Objects, Active Galactic...
AMBER : a near infrared focal instrument for the VLTI (2001)
Petrov, R.G., Malbet, F., Richichi, A., Hofmann, K.H., Mourard, Denis, Agabi, Karim, ...
AMBER is the General User near-infrared focal instrument of the Very Large Telescope interferometer. Its specifications are based on three key programs on Young Stellar Objects, Active Galactic...
AMBER : a near infrared focal instrument for the VLTI (2001)
Petrov, R.G., Malbet, F., Richichi, A., Hofmann, K.H., Mourard, Denis, Agabi, Karim, ...
AMBER is the General User near-infrared focal instrument of the Very Large Telescope interferometer. Its specifications are based on three key programs on Young Stellar Objects, Active Galactic...
Capetti, Alessandro, Schreier, Ethan, Axon, David, Young, Stuart, Hough, James, Clark, Simon, ...
Also archived in: arXiv:astro-ph/0007435 v1 28 Jul 2000
Capetti, Alessandro, Schreier, Ethan, Axon, David, Young, Stuart, Hough, James, Clark, Simon, ...
Also archived in: arXiv:astro-ph/0007435 v1 28 Jul 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...
Sub-mm and X-ray background: Two unrelated phenomena? (2000)
Severgnini, Paola, Maiolino, Roberto, Salvati, Marco, Axon, David, Cimatti, Andrea, Fiore, Fabrizio, ...
Also archived in: arXiv:astro-ph/0006233 v1 16 Jun 2000
Sub-mm and X-ray background: Two unrelated phenomena? (2000)
Severgnini, Paola, Maiolino, Roberto, Salvati, Marco, Axon, David, Cimatti, Andrea, Fiore, Fabrizio, ...
Also archived in: arXiv:astro-ph/0006233 v1 16 Jun 2000
Unveiling the active nucleus of Centaurus A (2000)
Marconi, Alessandro, Schreier, Ethan, Koekemoer, Anton, Capetti, Alessandro, Axon, David, Macchetto, Duccio, ...
Also archived in: arXiv:astro-ph/9907378 v1 27 Jul 1999
Unveiling the active nucleus of Centaurus A (2000)
Marconi, Alessandro, Schreier, Ethan, Koekemoer, Anton, Capetti, Alessandro, Axon, David, Macchetto, Duccio, ...
Also archived in: arXiv:astro-ph/9907378 v1 27 Jul 1999
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...
Winge, Claudia, Axon, David, Macchetto, Duccio, Capetti, Alessandro, Marconi, Alessandro
Also archived in: arXiv:astro-ph/9901415 v1 29 Jan 1999
Winge, Claudia, Axon, David, Macchetto, Duccio, Capetti, Alessandro, Marconi, Alessandro
Also archived in: arXiv:astro-ph/9901415 v1 29 Jan 1999
The Origin of the Narrow Line Region of Mrk 3: An Overpressured jet cocoon (1999)
Capetti, Alessandro, Axon, David, Macchetto, Duccio, Marconi, Alessandro, Winge, Claudia
Also archived in: arXiv:astro-ph/9811381 v1 24 Nov 1998
The origin of the narrow line region of Mrk 3: an overpressured jet cocoon (1999)
Capetti, Alessandro, Axon, David, Macchetto, Duccio, Marconi, Alessandro, Winge, Claudia
Also archived in: arXiv:astro-ph/9811381 v1 24 Nov 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...
The Supermassive black hole of M87 and the kinematics of its associated gaseous disk (1997)
Macchetto, Duccio, Marconi, Alessandro, Axon, David, Capetti, Alessandro, Sparks, William, Crane, Phillipe
Also archived in: arXiv:astro-ph/9706252 v1 25 Jun 1997
The supermassive black hole of M87 and the kinematics of its associated gaseous disk (1997)
Macchetto, Duccio, Marconi, Alessandro, Axon, David, Capetti, Alessandro, Sparks, William, Crane, Phillipe
Also archived in: arXiv:astro-ph/9706252 v1 25 Jun 1997
Jet driven motions in the Narrow Line region of NGC1068 (1997)
Axon, David, Marconi, Alessandro, Capetti, Alessandro, Macchetto, Duccio, Schreier, Ethan, Robinson, Andrew
Also archived in: arXiv:astro-ph/9801253 v1 26 Jan 1998
Jet driven motions in the Narrow Line region of NGC1068 (1997)
Axon, David, Marconi, Alessandro, Capetti, Alessandro, Macchetto, Duccio, Schreier, Ethan, Robinson, Andrew
Also archived in: arXiv:astro-ph/9801253 v1 26 Jan 1998
Is there really a super-massive black hole in M87? (1997)
Marconi, Alessandro, Axon, David, Macchetto, Duccio, Capetti, Alessandro, Sparks, William, Crane, Phillipe
Also archived in: arXiv:astro-ph/9706246 v1 24 Jun 1997
Is there really a super-massive black hole in M87? (1997)
Marconi, Alessandro, Axon, David, Macchetto, Duccio, Capetti, Alessandro, Sparks, William, Crane, Phillipe
Also archived in: arXiv:astro-ph/9706246 v1 24 Jun 1997