Galaxies at Redshift ~0.5 Around Three Closely Spaced Quasar Sightlines (2009)
Crighton, Neil H. M., Morris, Simon L., Bechtold, Jill, Crain, Robert A., Jannuzi, Buell T., Shone, Allen, ...
We examine the relationship between galaxies and the intergalactic medium at z < 1 using a group of three closely spaced background QSOs with z_em ~1 observed with the Hubble Space Telescope. Using a...
Kate Brand, Arjun Dey, Buell T. Jannuzi, Christopher S. Kochanek, Almus T. Kenter, ...
The XBoötes Survey is a 5-ks Chandra survey of the Boötes Field of the NOAO Deep Wide-Field Survey (NDWFS). This survey is unique in that it is the largest (9.3 deg2), contiguous region imaged in...
Strong polycyclic aromatic hydrocarbon emission from z ≈ 2 ULIRGs (2009)
Desai, Vandana, Soifer, B. T., Dey, Arjun, Le Floc'h, Emeric, Armus, Lee, Brand, Kate, ...
Using the Infrared Spectrograph on board the Spitzer Space Telescope, we present low-resolution (64 < λ/δλ < 124), mid-infrared (20-38 μm) spectra of 23 high-redshift ULIRGs detected in the...
Active Galactic Nuclei and the Truncation of Star Formation in K+A Galaxies (2009)
Brown, Michael J. I., Moustakas, John, Caldwell, Nelson, Palamara, David, Cool, Richard J., Dey, Arjun, ...
We have searched for active galactic nuclei (AGNs) in K+A galaxies, using multiwavelength imaging and spectroscopy in the Bootes field of the NOAO Deep Wide-Field Survey. The K+A galaxies, which have...
The Maryland-NOAO Instrument Partnership (2003-2009) (2009)
Veilleux, Sylvain, Jannuzi, Buell T.
Seven years ago, with the encouragement of the NSF and AURA, NOAO requested proposals from the community to partner with the national observatory to improve instrumentation and/or telescope...
Strong PAH Emission from z~2 ULIRGs (2009)
Desai, Vandana, Soifer, B. T., Dey, Arjun, Floc'h, Emeric Le, Armus, Lee, Brand, Kate, ...
Using the Infrared Spectrograph on board the Spitzer Space Telescope, we present low-resolution (64 < lambda / dlambda < 124), mid-infrared (20-38 micron) spectra of 23 high-redshift ULIRGs detected...
Hickox, Ryan C., Jones, Christine, Forman, William R., Murray, Stephen S., Kochanek, Christopher S., Eisenstein, Daniel, ...
We explore the connection between different classes of active galactic nuclei (AGNs) and the evolution of their host galaxies, by deriving host galaxy properties, clustering, and Eddington ratios of...
The Star Formation and Nuclear Accretion Histories of Normal Galaxies in the AGES Survey (2009)
Watson, Casey R., Kochanek, Christopher S., Forman, William R., Hickox, Ryan C., Jones, Christine J., Brown, Michael J. I., ...
We combine IR, optical and X-ray data from the overlapping, 9.3 square degree NOAO Deep Wide-Field Survey (NDWFS), AGN and Galaxy Evolution Survey (AGES), and XBootes Survey to measure the X-ray...
The origin of the 24 μm excess in red galaxies (2009)
Brand, Kate, Moustakas, John, Armus, Lee, Assef, Roberto J., Brown, Michael J. I., Cool, Richard R., ...
Observations with the Spitzer Space Telescope have revealed a population of red sequence galaxies with a significant excess in their 24 μm emission compared to what is expected from an old stellar...
Spitzer 70/160 μm observations of high-redshift ULIRGs and HyLIRSs in the Boötes field (2009)
Tyler, Krystal D., Le Floc'h, Emeric, Rieke, George H., Dey, Arjun, Desai, Vandana, Brand, Kate, ...
We present new 70 and 160 μm observations of a sample of extremely red (R – [24] ≳ 15 mag), mid-infrared bright, high-redshift (1.7 ≾ z ≾ 2.8) galaxies. All targets detected in the...
Hickox, Ryan C., Jones, Christine, Forman, William R., Murray, Stephen S., Kochanek, Christopher S., Eisenstein, Daniel, ...
We explore the connection between different classes of active galactic nuclei (AGNs) and the evolution of their host galaxies, by deriving host galaxy properties, clustering, and Eddington ratios of...
The Cosmic Evolution of AGN in galaxy clusters (2009)
Galametz, Audrey, Stern, Daniel, Eisenhardt, Peter R. M., Brodwin, Mark, Brown, Michael J. I., Dey, Arjun, ...
We present the surface density of luminous active galactic nuclei (AGN) associated with a uniformly selected galaxy cluster sample identified in the 8.5 square degree Bootes field of the NOAO Deep...
Galaxies at redshift ~0.5 around three closely spaced quasar sightlines (2009)
Crighton, Neil H. M., Morris, Simon L., Bechtold, Jill, Crain, Robert A., Jannuzi, Buell T., Shone, Allen, ...
We examine the relationship between galaxies and the intergalactic medium at z > 1 using a group of three closely spaced background QSOs with z_em ~1 observed with the Hubble Space Telescope. Using a...
The Origin of the 24-micron Excess in Red Galaxies (2008)
Brand, Kate, Moustakas, John, Armus, Lee, Assef, Roberto J., Brown, Michael J. I., Cool, Richard R., ...
Observations with the Spitzer Space Telescope have revealed a population of red-sequence galaxies with a significant excess in their 24-micron emission compared to what is expected from an old...
Clustering of dust-obscured galaxies at z ~ 2 (2008)
Brodwin, Mark, Dey, Arjun, Brown, Michael J. I., Pope, Alexandra, Armus, Lee, Bussmann, Shane, ...
We present the angular autocorrelation function of 2603 dust-obscured galaxies (DOGs) in the Boötes field of the NOAO Deep Wide-Field Survey. DOGs are red, obscured galaxies, defined as having...
Clustering of Dust-Obscured Galaxies at z ~ 2 (2008)
Brodwin, Mark, Dey, Arjun, Brown, Michael J. I., Pope, Alexandra, Armus, Lee, Bussmann, Shane, ...
We present the angular autocorrelation function of 2603 dust-obscured galaxies (DOGs) in the Bootes field of the NOAO Deep Wide-Field Survey. DOGs are red, obscured galaxies, defined as having R-[24]...
Mid-infrared selection of brown dwarfs and high-redshift quasars (2008)
Stern, Daniel, Kirkpatrick, J. Davy, Allen, Lori E., Bian, Chao, Blain, Andrew, Brand, Kate, ...
We discuss color selection of rare objects in a wide-field multiband survey spanning from the optical to the mid-infrared. Simple color criteria simultaneously identify and distinguish two of the...
A luminosity function of Lyα-emitting galaxies at z ≈ 4.5¹´² (2008)
Dawson, Steve, Rhoads, James E., Malhotra, Sangeeta, Stern, Daniel, Wang, JunXian, Dey, Arjun, ...
We present a catalog of 59 z ≈ 4:5 Lyα-emitting galaxies spectroscopically confirmed in a campaign of Keck DEIMOS follow-up observations to candidates selected in the Large Area Lyα (LALA)...
Spitzer mid-infrared spectroscopy of distant X-ray luminous active galactic nuclei (2008)
Brand, Kate, Weedman, Dan W., Desai, Vandana, Le Floc'h, Emeric, Armus, Lee, Dey, Arjun, ...
We present mid-infrared spectroscopy of a sample of 16 optically faint infrared luminous galaxies obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope. These sources were...
Redshift distribution of extragalactic 24 μm sources (2008)
Desai, Vandana, Soifer, B. T., Dey, Arjun, Jannuzi, Buell T., Le Floc'h, Emeric, Bian, Chao, ...
We present the redshift distribution of a complete, unbiased sample of 24 μm sources down to f_ν(24 μm) = 300 μJy (5 σ). The sample consists of 591 sources detected in the Boötes field of the...
A significant population of very luminous dust-obscured galaxies at redshift z ~ 2 (2008)
Dey, Arjun, Soifer, B. T., Desai, Vandana, Brand, Kate, Le Floc'h, Emeric, Brown, Michael J. I., ...
The Spitzer Space Telescope has revealed a significant population of high-redshift (z ~ 2) dust-obscured galaxies with large mid-infrared to ultraviolet luminosity ratios. Due to their optical...
Red Galaxy Growth and the Halo Occupation Distribution (2008)
Brown, Michael J. I., Zheng, Zheng, White, Martin, Dey, Arjun, Jannuzi, Buell T., Benson, Andrew J., ...
We have traced the past 7 Gyr of red galaxy stellar mass growth within dark matter halos. We have determined the halo occupation distribution, which describes how galaxies reside within dark matter...
Redshift Distribution of Extragalactic 24 micron Sources (2008)
Desai, Vandana, Soifer, B. T., Dey, Arjun, Jannuzi, Buell T., Floc'h, Emeric Le, Bian, Chao, ...
We present the redshift distribution of a complete, unbiased sample of 24 micron sources down to fnu(24 micron) = 300 uJy (5-sigma). The sample consists of 591 sources detected in the Bootes field of...
Spitzer Mid-Infrared Spectroscopy of Distant X-ray Luminous AGN (2008)
Brand, Kate, Weedman, Dan W., Desai, Vandana, Floc'h, Emeric Le, Armus, Lee, Dey, Arjun, ...
We present mid-infrared spectroscopy of a sample of 16 optically faint infrared luminous galaxies obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope. These sources were...
Spitzer mid-infrared spectroscopy of 70 μm-selected distant luminous infrared galaxies (2008)
Brand, Kate, Weedman, Dan W., Desai, Vandana, Le Floc'h, Emeric, Armus, Lee, Dey, Arjun, ...
We present mid-infrared spectroscopy obtained with the Spitzer Space Telescope of a sample of 11 optically faint, infrared luminous galaxies selected from a Spitzer MIPS 70 μm imaging survey of the...
A Significant Population of Very Luminous Dust-Obscured Galaxies at Redshift z ~ 2 (2008)
Dey, Arjun, Soifer, B. T., Desai, Vandana, Brand, Kate, LeFloc'h, Emeric, Brown, Michael J., ...
Observations with Spitzer Space Telescope have recently revealed a significant population of high-redshift z~2 dust-obscured galaxies (DOGs) with large mid-IR to UV luminosity ratios. These galaxies...
Red galaxy growth and the halo occupation distribution (2008)
Brown, Michael J. I., Zheng, Zheng, White, Martin, Dey, Arjun, Jannuzi, Buell T., Benson, Andrew J., ...
We have traced the past 7 Gyr of red galaxy stellar mass growth within dark matter halos. We have determined the halo occupation distribution, which describes how galaxies reside within dark matter...
John D. Silverman, Paul J. Green, Dong-woo Kim, Belinda J. Wilkes, Robert A, David Morris, ...
We present X-ray and optical observations of CXOMP J213945.0-234655, a high redshift (z = 4:93) quasar discovered through the Chandra Multiwavelength Project (ChaMP). This object is the most distant...
Chris Simpson, Peter Eisenhardt, Lee Armus, Arati Chokshi, Mark Dickinson, G. Djorgovski, ...
Young stars and non-stellar emission in the aligned radio galaxy
Varsha P. Kulkarni, John M. Hill, Glenn Schneider, Ray J. Weymann, J. Storrie-lombardi, ...
We have carried out a high-resolution imaging search for the galaxy associated with the damped Lya absorber (DLA) at z \ 1.859 toward the z \ 2.48 quasar QSO 1244]3443, using the Hubble Space...
Spitzer Mid-Infrared Spectroscopy of 70um-Selected Distant Luminous Infrared Galaxies (2007)
Brand, Kate, Weedman, Dan W., Desai, Vandana, Floc'h, Emeric Le, Armus, Lee, Dey, Arjun, ...
We present mid-infrared spectroscopy obtained with the Spitzer Space Telescope of a sample of 11 optically faint, infrared luminous galaxies selected from a Spitzer MIPS 70um imaging survey of the...
A Luminosity Function of Lyman Alpha Emitting Galaxies at Redshift 4.5 (2007)
Dawson, Steve, Rhoads, James E., Malhotra, Sangeeta, Stern, Daniel, Wang, JunXian, Dey, Arjun, ...
We present a catalog of 59 z=4.5 Lyman alpha emitting galaxies spectroscopically confirmed in a campaign of Keck/DEIMOS follow-up observations to candidates selected in the Large Area Lyman Alpha...
Supernovae in the Subaru Deep Field: An Initial Sample, and Type Ia Rate, out to Redshift 1.6 (2007)
Poznanski, Dovi, Maoz, Dan, Yasuda, Naoki, Foley, Ryan J., Doi, Mamoru, Filippenko, Alexei V., ...
Large samples of high-redshift supernovae (SNe) are potentially powerful probes of cosmic star formation, metal enrichment, and SN physics. We present initial results from a new deep SN survey, based...
The evolving luminosity function of red galaxies (2007)
Brown, Michael J. I., Arjun, Dey, Jannuzi, Buell T., Brand, Kate, Benson, Andrew J., Brodwin, Mark, ...
We trace the assembly history of red galaxies since z = 1 by measuring their evolving space density with the B-band luminosity function. Our sample of 39,599 red galaxies, selected from 6.96 deg2 of...
Evidence for merging or disruption of red galaxies from the evolution of their clustering (2006)
White, Martin, Zheng, Zheng, Brown, Michael J. I., Dey, Arjun, Jannuzi, Buell T.
The formation and evolution of massive red galaxies form a crucial test of theories of galaxy formation based on hierarchical assembly. In this letter we use observations of the clustering of...
The Evolving Luminosity Function of Red Galaxies (2006)
Brown, Michael J. I., Dey, Arjun, Jannuzi, Buell T., Brand, Kate, Benson, Andrew J., Brodwin, Mark, ...
We trace the assembly history of red galaxies since z=1, by measuring their evolving space density with the B-band luminosity function. Our sample of 39599 red galaxies, selected from 6.96 square...
The Discovery of Three New z>5 Quasars in the AGN and Galaxy Evolution Survey (2006)
Cool, Richard J., Kochanek, Christopher S., Eisenstein, Daniel J., Stern, Daniel, Brand, Kate, Brown, Michael J. I., ...
We present the discovery of three z>5 quasars in the AGN and Galaxy Evolution Survey (AGES) spectroscopic observations of the NOAO Deep Wide-Field Survey (NDWFS) Bootes Field. These quasars were...
The association between gas and galaxies I: CFHT spectroscopy and pair analysis (2006)
Morris, Simon L., Jannuzi, Buell T.
We investigate the relative distribution of the gaseous contents of the Universe (as traced by a sample of Lyman alpha (lya) absorbers), and the luminous baryonic matter (as traced by a redshift...
The Chandra XBootes Survey - III: Optical and Near-IR Counterparts (2005)
Brand, Kate, Brown, Michael J. I., Dey, Arjun, Jannuzi, Buell T., Kochanek, Christopher S., Kenter, Almus T., ...
The XBootes Survey is a 5-ks Chandra survey of the Bootes Field of the NOAO Deep Wide-Field Survey (NDWFS). This survey is unique in that it is the largest (9.3 deg^2), contiguous region imaged in...
The FLAMINGOS Extragalactic Survey (2005)
Elston, Richard J., Gonzalez, Anthony H., McKenzie, Eric, Brodwin, Mark, Brown, Michael J. I., Cardona, Gustavo, ...
Using the Florida Multi-object Imaging Near-IR grism Observational Spectrometer (FLAMINGOS), we have conducted the FLAMINGOS Extragalactic Survey (FLAMEX), a deep imaging survey covering 7.1 square...
Brown, Michael J. I., Brand, Kate, Dey, Arjun, Jannuzi, Buell T., Cool, Richard, Floc'h, Emeric Le, ...
We determine the rest-frame 8 micron luminosity function of type I quasars over the redshift range 1
Black Hole Masses and Eddington Ratios at 0.3 (2005)
Kollmeier, Juna A., Onken, Christopher A., Kochanek, Christopher S., Gould, Andrew, Weinberg, David H., Dietrich, Matthias, ...
We study the distribution of Eddington luminosity ratios, L_bol/L_edd, of active galactic nuclei (AGNs) discovered in the AGN and Galaxy Evolution Survey (AGES). We combine H-beta, MgII, and CIV line...
The XBootes Chandra Survey Paper II: The X-ray Source Catalog (2005)
Kenter, Almus, Murray, Stephen S., Forman, William R., Jones, Christine, Green, Paul, Kochanek, Christopher S., ...
We present results from a Chandra survey of the nine square degree Bootes field of the NOAO Deep Wide-Field Survey (NDWFS). This XBootes survey consists of 126 separate contiguous ACIS-I observations...
The Relationship Between Luminosity and Broad-Line Region Size in Active Galactic Nuclei (2005)
Kaspi, Shai, Maoz, Dan, Netzer, Hagai, Peterson, Bradley M., Vestergaard, Marianne, Jannuzi, Buell T.
We reinvestigate the relationship between the characteristic broad-line region size (R_blr) and the Balmer emission-line, X-ray, UV, and optical continuum luminosities. Our study makes use of the...
XBootes: An X-Ray Survey of the NDWFS Bootes Field - Paper I Overview and Initial Results (2005)
Murray, Stephen S., Kenter, Almus, Forman, William R., Jones, Christine, Green, Paul J., Kochanek, Christopher S., ...
We obtained a 5 ksec deep Chandra X-ray Observatory ACIS-I map of the 9.3 square degree Bootes field of the NOAO Deep Wide-Field Survey. Here we describe the data acquisition and analysis strategies...
Tracing the Nuclear Accretion History of the Red Galaxy Population (2005)
Brand, Kate, Dey, Arjun, Brown, Michael J. I., Watson, Casey R., Jannuzi, Buell T., Najita, Joan R., ...
We investigate the evolution of the hard X-ray luminosity of the red galaxy population using a large sample of 3316 red galaxies selected over a wide range in redshift (0.3
The Clustering of Extragalactic Extremely Red Objects (2004)
Brown, Michael J. I., Jannuzi, Buell T., Dey, Arjun, Tiede, Glenn P.
We have measured the angular and spatial clustering of 671 K5 Extremely Red Objects (EROs) from a 0.98 square degree sub-region of the NOAO Deep Wide-Field Survey (NDWFS). Our study covers nearly 5...
Mid-Infrared Selection of Active Galaxies (2004)
Stern, Daniel, Eisenhardt, Peter, Gorjian, Varoujan, Kochanek, Christopher S., Caldwell, Nelson, Eisenstein, Daniel, ...
Mid-infrared photometry provides a robust technique for identifying active galaxies. While the ultraviolet to mid-infrared continuum of normal galaxies is dominated by the composite stellar black...
Spectroscopic Properties of the z=4.5 Lyman-alpha Emitters (2004)
Dawson, Steve, Rhoads, James E., Malhotra, Sangeeta, Stern, Daniel, Dey, Arjun, Spinrad, Hyron, ...
We present Keck/LRIS optical spectra of 17 Lya-emitting galaxies and one Lyman break galaxy at z=4.5 discovered in the Large Area Lyman Alpha (LALA) survey. The survey has identified a sample of ~350...
Rhoads, James E., Xu, Chun, Dawson, Steve, Dey, Arjun, Malhotra, Sangeeta, Wang, JunXian, ...
We present a redshift z=6.535 galaxy discovered by its Lyman alpha emission in a 9180A narrowband image from the Large Area Lyman Alpha (LALA) survey. The Ly-a line luminosity (1.1e43 erg/s) is among...
Red Galaxy Clustering in the NOAO Deep Wide-Field Survey (2003)
Brown, Michael J. I., Dey, Arjun, Jannuzi, Buell T., Lauer, Tod R., Tiede, Glenn P., Mikles, Valerie J.
We have measured the clustering of z1000 galaxies to be selected as a function of spectral type, absolute magnitude, and photometric redshift. Spectral synthesis models can be used to predict the...
The Nature of the UV/X-Ray Absorber in PG 2302+029 (2003)
Sabra, Bassem M., Hamann, Fred, Jannuzi, Buell T., George, Ian M., Shields, Joseph C.
We present Chandra X-ray observations of the radio-quiet QSO PG 2302+029. This quasar has a rare system of ultra-high velocity (-56,000 km/s) UV absorption lines that form in an outflow from the...
Rhoads, James E., Dey, Arjun, Malhotra, Sangeeta, Stern, Daniel, Spinrad, Hyron, Jannuzi, Buell T., ...
Narrow-band searches for Lyman alpha emission are an efficient way of identifying star-forming galaxies at high redshifts. We present Keck telescope spectra confirming redshifts z = 5.7 for three...
Chandra Observations of the QSO Pair Q2345+007: Binary Quasar or Massive Dark Lens? (2002)
Green, Paul J., Kochanek, Chris, Siemiginowska, Aneta, Kim, Dong-Woo, Markevitch, Maxim, Silverman, John, ...
The components of the wide (7.3") separation quasar pair Q2345+007A,B (z=2.15) have the most strikingly similar optical spectra seen to date (Steidel & Sargent 1991) yet no detected lensing mass,...
The Large Area Lyman Alpha Survey (2001)
Rhoads, James E., Malhotra, Sangeeta, Dey, Arjun, Jannuzi, Buell T., Stern, Daniel, Spinrad, Hyron
The Lyman-$\alpha$ line is expected to be strong in the presence of active star formation and the absence of dust, making it a good tool for finding chemically primitive galaxies in the early...
Churchill, Christopher W., Mellon, Richard R., Charlton, Jane C., Jannuzi, Buell T., Kirhakos, Sofia, Steidel, Charles C., ...
[Abridged] We examine a sample of 45 Mg II absorption-selected systems over the redshift range 0.4 to 1.4. Mg II and Fe II absorption profiles were observed at a resolution of ~6 km/s with...
Churchill, Christopher W., Mellon, Richard R., Charlton, Jane C., Jannuzi, Buell T., Kirhakos, Sofia, Steidel, Charles C., ...
We present extensive metal-line absorption properties for 45 absorption systems that were selected by their Mg II absorption at redshifts between 0.4 and 1.4. For each system the properties of...
Kulkarni, Varsha P., Hill, John M., Schneider, Glenn, Weymann, Ray J., Storrie-Lombardi, Lisa J., Rieke, Marcia J., ...
We report results of a high-resolution imaging search (in rest frame H-$\alpha$ and optical continuum) for the galaxy associated with the damped Lyman-$\alpha$ (DLA) absorber at $z=1.892$ toward the...
Kaspi, Shai, Smith, Paul S., Netzer, Hagai, Maoz, Dan, Jannuzi, Buell T., Giveon, Uriel
(abridged) We have spectrophotometrically monitored a well-defined sample of 28 Palomar-Green quasars in order to obtain measurements of their BLRs and to investigate the relationships between quasar...
Young stars and non-stellar emission in the aligned radio galaxy 3C 256 (1999)
Simpson, Chris, Eisenhardt, Peter, Armus, Lee, Chokshi, Arati, Dickinson, Mark, Djorgovski, S. G., ...
We present ground-based images of the z=1.824 radio galaxy 3C 256 in the standard BVRIJHK filters and an interference filter centered at 8800A, a Hubble Space Telescope image in a filter dominated by...
Varsha P. Kulkarni, John M. Hill, Glenn Schneider, Ray J. Weymann, J. Storrie-lombardi, ...
We report results of a high-resolution imaging search for the galaxy associated with the damped Lya (DLA) absorber at z \ 1.892 toward the z \ 2.543 quasar LBQS 1210]1731, using the Hubble Space...
McNamara, Brian R., Jannuzi, Buell T., Sarazin, Craig L., Elston, Richard, Wise, Michael
We have obtained U-band polarimetry of the spatially extended, blue optical continuum associated with the FR I radio source PKS 2322-122. PKS 2322-122 is located in the Abell 2597 cluster central...
Weymann, Ray J., Jannuzi, Buell T., Lu, Limin, Bahcall, John N., Bergeron, Jacqueline, Boksenberg, Alec, ...
We present an analysis of the evolution of the Ly alpha absorption lines in the redshift interval 0.0 to \sim 1.5 based upon a sample of 987 lines identified in the spectra of 63 QSOs obtained with...
Jannuzi, Buell T., Bahcall, John N., Bergeron, Jacqueline, Boksenberg, Alec, Hartig, George F., Kirhakos, Sofia, ...
We present a catalogue of absorption lines obtained from the analysis of the ultra-violet spectra of 66 quasars. The data were acquired with the Faint Object Spectrograph of the HST as part of the...
The UV Properties of the Narrow Line Quasar I Zwicky 1 (1997)
Laor, Ari, Jannuzi, Buell T., Green, Richard F., Boroson, Todd A.
I Zw 1 is the prototype narrow line quasar. We report here the results of our study of the UV emission of I Zw 1 using a high S/N (50-120) spectrum obtained with the HST FOS. The following main new...
Imaging of the Host Galaxies of Three X-Ray Selected BL Lacertae Objects (1997)
Jannuzi, Buell T., Yanny, Brian, Impey, Chris
Hubble Space Telescope (HST) WFPC-2 I-band (F814W) images of three X-ray selected BL Lacertae objects (MS1221.8+2452, MS1407.9+5954, & MS2143.4+0704) reveal that each of these BL Lac objects is...
Where Are We and Where Should We Go? Summary Reports of the Girona Conference Workshops (1997)
Jannuzi, Buell T., Marsher, Alan P., Pohl, Martin, Smith, Alex G.
Four parallel workshops were organized at the 1996 Girona Conference, "Blazars, Black Holes, and Jets", with conference attendees free to choose which session they would like to attend. The chosen...
HST Imaging of the BL Lacertae Object OJ 287 (1997)
Yanny, Brian, Jannuzi, Buell T., Impey, Chris
Hubble Space Telescope WFPC-2 I-band (F814W) images of the BL Lacertae object OJ 287 and the surrounding field are presented. We find evidence of associated extended nebulosity near OJ 287, as well...
Probing the Geometry and Circumstellar Environment of SN 1993J in M81 (1997)
Tran, Hien D., Filippenko, Alexei V., Schmidt, Gary D., Bjorkman, Karen S., Jannuzi, Buell T., Smith, Paul S.
We have monitored the polarized radiation of the Type IIb SN 1993J in M81 over a period of 41 days, starting from 7 days after the explosion on 1993 March 27.5 (UT). Our data show clear evidence that...
Measurement of the Broad Line Region Size in Two Bright Quasars (1996)
Kaspi, Shai, Smith, Paul S., Maoz, Dan, Netzer, Hagai, Jannuzi, Buell. T.
We present 4 years of spectrophotometric monitoring data for two radio-quiet quasars, PG 0804+762 and PG 0953+414, with typical sampling intervals of several months. Both sources show continuum and...
Quasar Absorption Lines and the Intergalactic Medium (1996)
The importance of HST for the study of quasar absorption lines and of the nature of the intergalactic medium is illustrated by reviewing selected results from past HST observations. Topics reviewed...
Detection of Extended Polarized Ultraviolet Radiation from the z = 1.82 Radio Galaxy 3C 256 (1995)
Jannuzi, Buell T., Elston, Richard, Schmidt, Gary D., Smith, Paul S., Stockman, H. S.
We have detected spatially extended linear polarized UV emission from the high-redshift radio galaxy 3C~256 ($z=1.82$). A spatially integrated ($7.8''$ diameter aperture) measurement of the degree of...
Sarajedini, Vicki L., Green, Richard F., Jannuzi, Buell T.
We model the requirements on observational data that would allow an accurate determination of the degree of association between Lyman alpha absorbers and peaks in the redshift distribution of...
The HST Quasar Absorption Line Key Project VII. Absorption Systems at $z_{\rm abs} \leq 1.3$ (1995)
Bahcall, John N., Bergeron, Jacqueline, Boksenberg, Alec, Hartig, George F., Jannuzi, Buell T., Kirhakos, Sofia, ...
We present evidence that clumps of \lya lines are physically associated with about half of the extensive metal-line systems (absorption systems with four or more observed metal-line species) found in...
The Hidden Nuclear Spectrum of the Luminous IRAS Source FSC10214$+$4724 (1994)
Jannuzi, Buell T., Elston, Richard, Schmidt, Gary D., Smith, Paul S., Stockman, H. S.
Optical spectropolarimetry of the luminous IRAS source FSC10214$+$4724 (z$=2.286$) reveals that the strong (\twid17\%) linear polarization detected by Lawrence \etal\/ is shared by both the narrow UV...
Laor, Ari, Bahcall, John N., Jannuzi, Buell T., Schneider, Donald P., Green, IAS; Richard F., Hartig, NOAO; George F., ...
We analyze the ultraviolet (UV) emission line and continuum properties of five low-redshift active galactic nuclei (four luminous quasars: PKS~0405$-$123, H1821+643, PG~0953+414, and 3C273, and one...