Jonathan R. Trump

The Nature of Optically Dull Active Galactic Nuclei in COSMOS (2009)

Trump, Jonathan R., Impey, Chris D., Taniguchi, Yoshi, Brusa, Marcella, Civano, Francesca, Elvis, Martin, ...

We present infrared, optical, and X-ray data of 48 X-ray bright, optically dull active galactic nuclei (AGNs) in the COSMOS field. These objects exhibit the X-ray luminosity of an AGN but lack broad...

The Nature of Optically Dull Active Galactic Nuclei in COSMOS (2009)

Trump, Jonathan R., Impey, Chris D., Taniguchi, Yoshi, Brusa, Marcella, Civano, Francesca, Elvis, Martin, ...

We present infrared, optical, and X-ray data of 48 X-ray bright, optically dull AGNs in the COSMOS field. These objects exhibit the X-ray luminosity of an active galactic nucleus (AGN) but lack broad...

Galaxies in COSMOS: Evolution of Black hole vs. bulge mass but not vs. total stellar mass over the last 9 Gyrs? (2009)

Jahnke, Knud, Bongiorno, Angela, Brusa, Marcella, Capak, Peter, Cappelluti, Nico, Cisternas, Mauricio, ...

We constrain the ratio of black hole (BH) mass to total stellar mass of type-1 AGN in the COSMOS survey at 1

Observational limits on type 1 active galactic nucleus rate in COSMOS (2009)

Trump, Jonathan R., Impey, Chris D., Kelly, Brandon C., Elvis, Martin, Merloni, A., Bongiorno, Angela, ...

We present black hole masses and accretion rates for 182 Type 1 active galactic nuclei (AGNs) in COSMOS. We estimate masses using the scaling relations for the broad H β, Mg ii, and C iv emission...

The COSMOS Active Galactic Nucleus Spectroscopic Survey. I. XMM-Newton Counterparts (2009)

Trump, Jonathan R., Impey, Chris D., Elvis, Martin, McCarthy, Patrick J., Huchra, John P., Brusa, Marcella, ...

We present optical spectroscopy for an X-ray and optical flux-limited sample of 677 XMM-Newton selected targets covering the 2 deg^2 Cosmic Evolution Survey field, with a yield of 485 high-confidence...

Observational Limits on Type 1 AGN Accretion Rate in COSMOS (2009)

Trump, Jonathan R., Impey, Chris D., Kelly, Brandon C., Elvis, Martin, Merloni, Andrea, Bongiorno, Angela, ...

We present black hole masses and accretion rates for 182 Type 1 AGN in COSMOS. We estimate masses using the scaling relations for the broad Hb, MgII, and CIV emission lines in the redshift ranges 0.16

The COSMOS active galactic nucleus spectroscopic survey - I. XMM-Newton counterparts (2009)

Trump, Jonathan R., Impey, Chris D., Elvis, Martin, McCarthy, Patrick J., Huchra, John P., Brusa, Marcella, ...

Observational limits on type 1 active galactic nucleus accretion rate in COSMOS (2009)

Trump, Jonathan R., Impey, Chris D., Kelly, Brandon C., Elvis, Martin, Merloni, Andrea, Bongiorno, Angela, ...

The COSMOS AGN Spectroscopic Survey I: XMM Counterparts (2008)

Trump, Jonathan R., Impey, Chris D., Elvis, Martin, McCarthy, Patrick J., Huchra, John P., Brusa, Marcella, ...

We present optical spectroscopy for an X-ray and optical flux-limited sample of 677 XMM-Newton selected targets covering the 2 deg^2 COSMOS field, with a yield of 485 high-confidence redshifts. The...

Observational Constraints on the Dependence of Radio-Quiet Quasar X-ray Emission on Black Hole Mass and Accretion Rate (2008)

Kelly, Brandon C., Bechtold, Jill, Trump, Jonathan R., Vestergaard, Marianne, Siemiginowska, Aneta

In this work we use a sample of 318 radio-quiet quasars (RQQ) to investigate the dependence of the ratio of optical/UV flux to X-ray flux, alpha_ox, and the X-ray photon index, Gamma_X, on black hole...

Magellan spectroscopy of AGN candidates in the COSMOS field (2007)

Trump, Jonathan R., Impey, Chris D., McCarthy, Patrick J., Elvis, Martin, Huchra, John P., Brusa, Marcella, ...

A multiwavelength study of AGN with COSMOS: Do low-Eddington ratio type 1 AGN exist? (2007)

Trump, Jonathan R., Impey, Chris D., Gabor, Jared M., McCarthy, Patrick J., Elvis, Martin, Huchra, John, ...

Magellan spectroscopy of AGN candidates in the COSMOS field (2007)

Trump, Jonathan R., Impey, Chris D., McCarthy, Patrick J., Elvis, Martin, Huchra, John P., Brusa, Marcella, ...

We present spectroscopic redshifts for the first 466 X-ray- and radio-selected AGN targets in the 2 deg2 COSMOS field. Spectra were obtained with the IMACS instrument on the Magellan (Baade)...

Magellan Spectroscopy of AGN Candidates in the COSMOS Field (2006)

Trump, Jonathan R., Impey, Chris D., McCarthy, Patrick J., Elvis, Martin, Huchra, John P., Brusa, Marcella, ...

We present spectroscopic redshifts for the first 466 X-ray and radio-selected AGN targets in the 2 deg^2 COSMOS field. Spectra were obtained with the IMACS instrument on the Magellan (Baade)...

A Catalog of Broad Absorption Line Quasars from the Sloan Digital Sky Survey Third Data Release (2006)

Trump, Jonathan R., Hall, Patrick B., Reichard, Timothy A., Richards, Gordon T., Schneider, Donald P., Berk, Daniel E. Vanden, ...

We present a total of 4784 unique broad absorption line quasars from the Sloan Digital Sky Survey Third Data Release. An automated algorithm was used to match a continuum to each quasar and to...

Wide absorption line quasars in the sloan digital sky survey / (2004)

Trump, Jonathan R., Schneider, Donald P., Schreyer Honors College.

Thesis supervisor: Donald P. Schneider.

The Sloan Digital Sky Survey Quasar Catalog II. First Data Release (2003)

Schneider, Donald P., Fan, Xiaohui, Hall, Patrick B., Jester, Sebastian, Richards, Gordon T., Stoughton, Chris, ...

We present the second edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of 16713 objects in the SDSS First Data Release (DR1) that have luminosities larger than...