Taylor, Edward N, Franx, Marijn, Van Dokkum, Pieter G, Quadri, Ryan F, Gawiser, Eric, Bell, Eric F, ...
We present a new K-selected, optical-to-near-infrared photometric catalog of the Extended Chandra Deep Field South (ECDFS), making it publicly available to the astronomical community. The dataset is...
Do Moderate-Luminosity Active Galactic Nuclei Suppress Star Formation? (2009)
Schawinski, Kevin, Virani, Shanil, Simmons, Brooke, Urry, C. Megan, Treister, Ezequiel, Kaviraj, Sugata, ...
The growth of supermassive black holes and their host galaxies are thought to be linked, but the precise nature of this symbiotic relationship is still poorly understood. Both observations and...
Is there an upper limit to black hole masses? (2008)
Natarajan, Priyamvada, Treister, Ezequiel
We make a case for the existence for ultra-massive black holes (UMBHs) in the Universe, but argue that there exists a likely upper limit to black hole masses of the order of $M \sim 10^{10} \msun$....
Mid-infrared Properties and Color Selection for X-ray Detected AGN in the MUSYC ECDF-S field (2008)
Cardamone, Carolin N., Urry, C. Megan, Damen, Maaike, Van Dokkum, Pieter, Treister, Ezequiel, Labbé, Ivo, ...
We present the mid-infrared colors of X-ray-detected AGN and explore mid-infrared selection criteria. Using a statistical matching technique, the likelihood ratio, over 900 IRAC counterparts were...
Measuring the Fraction of Obscured Quasars by the Infrared Luminosity of Unobscured Quasars (2008)
Treister, Ezequiel, Krolik, Julian H., Dullemond, Cornelis
Recent work has suggested that the fraction of obscured AGN declines with increasing luminosity, but it has been difficult to quantify this trend. Here, we attempt to measure this fraction as a...
Measuring the fraction of obscured quasars by the infrared luminosity of unobscured quasars (2008)
Treister, Ezequiel, Krolik, Julian H., Dullemond, Cornelis
Recent work has suggested that the fraction of obscured AGNs declines with increasing luminosity, but it has been difficult to quantify this trend. Here we attempt to measure this fraction as a...
Clustering of Intermediate Luminosity X-ray selected AGN at z~3 (2007)
Francke, Harold, Gawiser, Eric, Lira, Paulina, Treister, Ezequiel, Virani, Shanil, Cardamone, Carie, ...
We present the first clustering results of X-ray selected AGN at z~3. Using Chandra X-ray imaging and UVR optical colors from MUSYC photometry in the ECDF-S field, we selected a sample of 58 z~3 AGN...
Ly Alpha-Emitting Galaxies at z=3.1: L* Progenitors Experiencing Rapid Star Formation (2007)
Gawiser, Eric, Francke, Harold, Lai, Kamson, Schawinski, Kevin, Gronwall, Caryl, Ciardullo, Robin, ...
We studied the clustering properties and multiwavelength spectral energy distributions of a complete sample of 162 Ly Alpha-Emitting (LAE) galaxies at z=3.1 discovered in deep narrow-band MUSYC...
Quadri, Ryan, Marchesini, Danilo, Van Dokkum, Pieter, Gawiser, Eric, Franx, Marijn, Lira, Paulina, ...
Publicación ISI
Quadri, Ryan, Marchesini, Danilo, Van Dokkum, Pieter, Gawiser, Eric, Franx, Marijn, Lira, Paulina, ...
Publicación ISI
Quadri, Ryan, Marchesini, Danilo, Van Dokkum, Pieter, Gawiser, Eric, Franx, Marijn, Lira, Paulina, ...
We present deep near-infrared JHK imaging of four 10'x10' fields. The observations were carried out as part of the Multiwavelength Survey by Yale-Chile (MUSYC) with ISPI on the CTIO 4m telescope. The...
CXOCY J220132.8-320144: An edge-on spiral gravitational lens (2006)
Castander, Francisco J., Treister, Ezequiel, Maza, José, Gawiser, Eric
We present the CXOCY J220132.8-320144 system, which is composed of an edge-on spiral galaxy at z = 0.32 lensing a z = 3.9 background quasar. Two images of the quasar are seen. The geometry of the...
The evolution of obscuration in active galactic nuclei (2006)
Treister, Ezequiel, Urry, C. Megan
In order to study the evolution of the relative fraction of obscured active galactic nuclei (AGNs), we constructed the largest sample to date of AGNs selected in hard X-rays. The full sample contains...
The Evolution of Obscuration in AGN (2006)
Treister, Ezequiel, Urry, C. Megan
In order to study the evolution of the relative fraction of obscured Active Galactic Nuclei (AGN) we constructed the largest sample to date of AGN selected in hard X-rays. The full sample contains...
The physical nature of Ly alpha-emitting galaxies at z=3.1 (2006)
Gawiser, Eric, Dokkum, Pieter G. Van, Gronwall, Caryl, Ciardullo, Robin, Blanc, Guillermo A., Castander, Francisco J., ...
We selected 40 candidate Ly alpha-emitting galaxies ( LAEs) at z similar or equal to 3.1 with observed-frame equivalent widths greater than 150 and inferred emission-line fluxes above 2.5 x 10(-17)...
The Physical Nature of Lyman Alpha Emitting Galaxies at z=3.1 (2006)
Gawiser, Eric, Van Dokkum, Pieter G., Gronwall, Caryl, Ciardullo, Robin, Blanc, Guillermo A., Castander, Francisco J., ...
We selected 40 candidate Lyman Alpha Emitting galaxies (LAEs) at z ~=3.1 with observed frame equivalent widths >150A and inferred emission line fluxes >2.5x10^-17 ergs/cm^2/s from deep narrow-band...
Gawiser, Eric, Dokkum, Pieter G. Van, Herrera, David, Maza, José, Castander, Francisco J., Infante, Leopoldo, ...
We present UBVRIz' optical images taken with MOSAIC on the CTIO 4 m telescope of the 0.32 deg(2) Extended Hubble Deep Field-South. This is one of four fields comprising the MUSYC survey, which is...
Spitzer Number Counts of AGN in the GOODS fields (2005)
Treister, Ezequiel, Urry, C. Megan, Van Duyne, Jeffrey, Dickinson, Mark, Chary, Ranga-Ram, Alexander, David M., ...
We present mid-infrared observations of AGN in the GOODS fields, performed with the Spitzer Space Telescope. These are the deepest infrared and X-ray fields to date and cover a total area of ~0.1...
Obscured and Unobscured AGN Evolution and the X-ray background (2005)
Treister, Ezequiel, Urry, C. Megan, Lira, Paulina
The Great Observatories Origins Deep Survey (GOODS) combines deep HST and Spitzer imaging with the deepest Chandra/XMM observations to probe obscured AGN at higher redshifts than previous...
The Extended Chandra Deep Field-South Survey: Optical Properties of X-ray Detected Sources (2005)
Virani, Shanil, Treister, Ezequiel, Urry, C. Megan, Gawiser, Eric, Collaboration, The MUSYC
The Extended Chandra Deep Field-South (E-CDF-S) survey consists of 4 Chandra ACIS-I pointings and covers ~1100 square arcminutes (~0.3 deg^2) centered on the original CDF-S field to a depth of...
The Extended Chandra Deep Field-South Survey: X-ray Point-Source Catalog (2005)
Virani, Shanil, Treister, Ezequiel, Urry, C. Megan, Gawiser, Eric
The Extended Chandra Deep Field-South (ECDFS) survey consists of 4 Chandra ACIS-I pointings and covers $\approx$ 1100 square arcminutes ($\approx$ 0.3 deg$^2$) centered on the original CDF-S field to...
AGN Unification and the X-ray Background (2005)
Treister, Ezequiel, Urry, C. M.
Active Galactic Nuclei (AGN) unification, which implies a large number of obscured AGN, can explain the optical, infrared and X-ray content of deep multiwavelength surveys. Here, we show that the...
Infrared Properties of AGN in the GOODS Fields: AGN in Stellar Dominated High-z Galaxies (2005)
Van Duyne, Jeffrey, Urry, C. Meg, Chatzichristou, Eleni, Treister, Ezequiel, Team, The GOODS AGN
We present analysis of spectral energy distributions (SEDs) from mid-infrared through X-ray of a sample of 420 hard X-ray selected, z-band and Spitzer/IRAC detected active galactic nuclei (AGN) and...
Obscured AGN in Multiwavelength Surveys (2004)
Treister, Ezequiel, Urry, C. M., Van Duyne, Jeff, Team, The GOODS AGN
Using a simple unification model for AGN, with a fixed ratio of obscured to unobscured AGN of 3:1, we explain the X-ray, optical and infrared properties of the X-ray sources in the GOODS fields. That...
Treister, Ezequiel, Castander, Francisco, Maccarone, Thomas, Gawiser, Eric, Coppi, Paolo, Urry, C. Megan, ...
We present the first results from the Cal\'an-Yale Deep Extragalactic Research (CYDER) survey. The main goal of this survey is to study serendipitous X-ray sources detected by Chandra in an...
An X-ray Selected AGN at z=4.6 Discovered by the CYDER Survey (2003)
Treister, Ezequiel, Castander, Francisco J., Maccarone, Thomas J., Herrera, David, Gawiser, Eric, Maza, Jose, ...
We present the discovery of a high redshift, X-ray selected AGN by the Calan-Yale Deep Extragalactic Research (CYDER) survey: CXOCY J033716.7-050153, located at $z=4.61$, the second high redshift AGN...
Properties of Low Surface Brightness Galaxies and Normal Spirals in the Near-IR (2002)
Galaz, Gaspar, Dalcanton, Julianne, Infante, Leopoldo, Treister, Ezequiel
(Abridged) We present results for J and Ks near-IR imaging data on a large sample of 88 galaxies drawn from the catalogue of Impey et al. (1996). The near-IR data unveils many features of LSBGs not...