Optical Spectroscopy of Distant Red Galaxies (2009)
Wuyts, Stijn, Van Dokkum, Pieter G., Franx, Marijn, Schreiber, Natascha M. Forster, Illingworth, Garth D., Labbe, Ivo, ...
We present optical spectroscopic follow-up of a sample of Distant Red Galaxies (DRGs) with K < 22.5 (Vega), selected by J-K > 2.3, in the Hubble Deep Field South, the MS 1054-03 field, and the...
Searching for a Gravitational Heating Signature in Nearby Luminous Ellipticals (2009)
Tal, Tomer, Van Dokkum, Pieter G., Kenney, Jeffrey D. P.
We present a new deep optical study of a luminosity limited sample of nearby elliptical galaxies, attempting to observe the effects of gravitational interactions on the ISM of these objects. This...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Magee, Daniel K.
We present HST NIC2 morphologies of a spectroscopic sample of massive galaxies at z~2.3, by extending our sample of nine compact quiescent galaxies (r_e~0.9 kpc) with ten massive emission-line...
Star formation in the CDFS: observations confront simulations (2009)
Damen, Maaike, Schreiber, Natascha M. Förster, Franx, Marijn, Labbé, Ivo, Toft, Sune, Van Dokkum, Pieter G., ...
We investigate the star formation history of the universe using FIREWORKS, a multiwavelength survey of the CDFS. We study the evolution of the specific star formation rate (sSFR) with redshift in...
Tal, Tomer, Van Dokkum, Pieter G., Nelan, Jenica, Bezanson, Rachel
We present a deep broadband optical imaging study of a complete sample of luminous elliptical galaxies (M_B
On the Dearth of Compact, Massive, Red Sequence Galaxies in the Local Universe (2009)
Taylor, Edward N, Franx, Marijn, Glazebrook, Karl, Brinchmann, Jarle, Van Der Wel, Arjen, Van Dokkum, Pieter G
Using data from the Sloan Digital Sky Survey (SDSS; data release 7), we have conducted a search for local analogs to the extremely compact, massive, quiescent galaxies that have been identified at z...
A high stellar velocity dispersion for a compact massive galaxy at z=2.2 (2009)
Van Dokkum, Pieter G., Kriek, Mariska, Franx, Marijn
Recent studies have found that the oldest and most luminous galaxies in the early Universe are surprisingly compact, having stellar masses similar to present-day elliptical galaxies but much smaller...
Muzzin, Adam, Marchesini, Danilo, Van Dokkum, Pieter G., Labbé, Ivo, Kriek, Mariska, Franx, Marijn
We present SED modeling of a sample of 34 K-selected galaxies at z ~ 2.3. These galaxies have NIR spectroscopy that samples the rest-frame Balmer/4000A break as well as deep photometry in thirteen...
Wuyts, Stijn, Franx, Marijn, Cox, Thomas J., Schreiber, Natascha M. Forster, Hayward, Christopher C., Hernquist, Lars, ...
We present a comparison between the observed color distribution, number and mass density of massive galaxies at 1.5 < z < 3 and a model by Hopkins et al. that relates the quasar and galaxy population...
An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2 (2009)
Kriek, Mariska, Van Dokkum, Pieter G., Labbe, Ivo, Franx, Marijn, Illingworth, Garth D., Marchesini, Danilo, ...
Several recent studies have shown that about half of the massive galaxies at z~2 are in a quiescent phase. Moreover, these galaxies are commonly found to be ultra-compact with half-light radii of ~1...
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...
Bezanson, Rachel, Van Dokkum, Pieter G., Tal, Tomer, Marchesini, Danilo, Kriek, Mariska, Franx, Marijn, ...
Recent studies have shown that massive quiescent galaxies at high redshift are much more compact than present-day galaxies of the same mass. Here we compare the radial stellar density profiles and...
Wuyts, Stijn, Franx, Marijn, Cox, Thomas J., Hernquist, Lars, Hopkins, Philip F., Robertson, Brant E., ...
We present a detailed analysis of our ability to determine stellar masses, ages, reddening and extinction values, and star formation rates of high-redshift galaxies by modeling broad-band SEDs with...
The NEWFIRM Medium-Band Survey: Filter Definitions and First Results (2009)
Van Dokkum, Pieter G., Labbe, Ivo, Marchesini, Danilo, Quadri, Ryan, Brammer, Gabriel, Whitaker, Katherine E., ...
Deep near-infrared imaging surveys allow us to select and study distant galaxies in the rest-frame optical, and have transformed our understanding of the early Universe. As the vast majority of K- or...
Marchesini, Danilo, Van Dokkum, Pieter G., Schreiber, Natascha M. Forster, Franx, Marijn, Labbe', Ivo, Wuyts, Stijn
[Abridged] We present the evolution of the stellar mass function (SMF) of galaxies from z=4.0 to z=1.3 measured from a sample constructed from the deep NIR MUSYC, the FIRES, and the GOODS-CDFS...
Taylor, Edward N, Franx, Marijn, Van Dokkum, Pieter G, Bell, Eric F, Brammer, Gabriel B, Rudnick, Gregory, ...
We present the color-magnitude and color-stellar mass diagrams for galaxies with z_phot < ~2, based on a K < 22 (AB) catalog of the Extended Chandra Deep Field South (ECDFS) from the MUltiwavelength...
Damen, Maaike, Labbe, Ivo, Franx, Marijn, Van Dokkum, Pieter G., Taylor, Edward N., Gawiser, Eric J.
We study the evolution of the star formation rate (SFR) of mid-infrared (IR) selected galaxies in the extended Chandra Deep Field South (E-CDFS). We use a combination of U-K GaBoDS and MUSYC data,...
Franx, Marijn, Van Dokkum, Pieter G., Schreiber, Natascha M. Foerster, Wuyts, Stijn, Labbe, Ivo, Toft, Sune
We present an analysis of galaxies in the CDF-South. We find a tight relation to z=3 between color and size at a given mass, with red galaxies being small, and blue galaxies being large. We show that...
EAZY: A Fast, Public Photometric Redshift Code (2008)
Brammer, Gabriel B., Van Dokkum, Pieter G., Coppi, Paolo
We describe a new program for determining photometric redshifts, dubbed EAZY. The program is optimized for cases where spectroscopic redshifts are not available, or only available for a biased subset...
The Detection of a Red Sequence of Massive Field Galaxies at z~2.3 and its Evolution to z~0 (2008)
Kriek, Mariska, Van Der Wel, Arjen, Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D.
The existence of massive galaxies with strongly suppressed star formation at z~2.3, identified in a previous paper, suggests that a red sequence may already be in place beyond z=2. In order to test...
Wuyts, Stijn, Labbe, Ivo, Schreiber, Natascha M. Forster, Franx, Marijn, Rudnick, Gregory, Brammer, Gabriel B., ...
We present a Ks-selected catalog, dubbed FIREWORKS, for the Chandra Deep Field South (CDFS) containing photometry in U_38, B_435, B, V, V_606, R, i_775, I, z_850, J, H, Ks, [3.6 um], [4.5 um], [5.8...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Marchesini, Danilo, Quadri, Ryan, ...
Using the Gemini Near-InfraRed Spectrograph (GNIRS), we have completed a near-infrared spectroscopic survey for K-bright galaxies at z~2.3, selected from the MUSYC survey. We derived spectroscopic...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Marchesini, Danilo, Quadri, Ryan, ...
Wuyts, Stijn, Labbé, Ivo, Förster Schreiber, Natascha M., Franx, Marijn, Rudnick, Gregory, Brammer, Gabriel B., ...
Franx, Marijn, Van Dokkum, Pieter G., Förster Schreiber, Natascha M., Wuyts, Stijn, Labbé, Ivo, Toft, Sune
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...
Spitzer Mid-to-Far-Infrared Flux Densities of Distant Galaxies (2007)
Papovich, Casey, Rudnick, Gregory, Floc'h, Emeric Le, Van Dokkum, Pieter G., Rieke, George H., Taylor, Edward N., ...
We study the infrared (IR) properties of high-redshift galaxies using deep Spitzer 24, 70, and 160 micron data. Our primary interest is to improve the constraints on the total IR luminosities, L(IR),...
What do we learn from IRAC observations of galaxies at 2 < z < 3.5? (2007)
Wuyts, Stijn, Labbé, Ivo, Franx, Marijn, Rudnick, Gregory, Van Dokkum, Pieter G., Fazio, Giovanni G., ...
Size evolution of galaxies since z~3: combining SDSS, GEMS and FIRES (2007)
Trujillo, Ignacio, Förster Schreiber, Natascha M., Rudnick, Gregory, Barden, Marco, Franx, Marijn, Rix, Hans-Walter, ...
Labbé, Ivo, Franx, Marijn, Rudnick, Gregory, Förster Schreiber, Natascha M., Van Dokkum, Pieter G., Moorwood, Alan, ...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Coppi, Paolo, Förster Schreiber, Natascha M., ...
What do we learn from IRAC observations of galaxies at 2 < z < 3.5? (2007)
Wuyts, Stijn, Labbé, Ivo, Franx, Marijn, Rudnick, Gregory, Van Dokkum, Pieter G., Fazio, Giovanni G., ...
We analyze very deep HST, VLT, and Spitzer photometry of galaxies at 21] galaxies, but only by a factor of 1.3 for blue [(U-V)rest2. The most massive galaxies at high redshift have red rest-frame U-V...
Evolution of Galaxies Since Z~3:COMBINING SDSS, GEMS and FIRES (2007)
Trujillo, Ignacio, Förster Schreiber, Natascha M., Rudnick, Gregory, Barden, Marco, Franx, Marijn, Rix, Hans-Walter, ...
We present the evolution of the luminosity size and stellar mass size relations of luminous (LV > 3.4×1010h70 -2Lo) and of massive (M* >3×1010h70 -2Mo) galaxies in the lastË11 Gyr. We use very...
The Density and Spectral Energy Distributions of Red Galaxies at z~3.7 (2006)
Brammer, Gabriel B., Van Dokkum, Pieter G.
We use the deep NIR imaging of the FIRES survey to investigate trends with redshift of the properties of galaxies selected to have strong Balmer/4000A breaks at 22, we propose two color criteria,...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Coppi, Paolo, Schreiber, Natascha M. Forster, ...
Using the Gemini Near-InfraRed Spectrograph (GNIRS), we have assembled a complete sample of 20 K-selected galaxies at 2.0
Van Der Marel, Roeland P., Van Dokkum, Pieter G.
We present spatially resolved stellar rotation velocity and velocity dispersion profiles form Keck/LRIS absorption-line spectra for 25 galaxies, mostly visually classified ellipticals, in three...
Van Der Marel, Roeland P., Van Dokkum, Pieter G.
We study M/L evolution of early-type galaxies using dynamical modeling of resolved internal kinematics. This makes fewer assumptions than Fundamental Plane (FP) studies and provides a powerful new...
The Star Formation Epoch of the Most Massive Early-Type Galaxies (2006)
Van Dokkum, Pieter G., Van Der Marel, Roeland P.
We present new Keck spectroscopy of early-type galaxies in three galaxy clusters at z~0.5. We focus on the fundamental plane (FP) relation, and combine the kinematics with structural parameters...
What do we learn from IRAC observations of galaxies at 2 < z < 3.5? (2006)
Wuyts, Stijn, Labbe, Ivo, Franx, Marijn, Rudnick, Gregory, Van Dokkum, Pieter G., Fazio, Giovanni G., ...
We analyze very deep HST, VLT and Spitzer photometry of galaxies at 2 1) galaxies, but only by a factor of 1.3 for blue (U-V < 1) galaxies. We find a similar color-dependence of the improvement for...
Van Der Wel, Arjen, Franx, Marijn, Wuyts, Stijn, Van Dokkum, Pieter G., Huang, Jiasheng, Rix, Hans-Walter, ...
We determine the importance of redshift-dependent systematic effects in the determination of stellar masses from broad band spectral energy distributions (SEDs), using high quality kinematic and...
Measuring the Average Evolution of Luminous Galaxies at z (2006)
Rudnick, Gregory, Labbe, Ivo, Schreiber, Natascha M. Foerster, Wuyts, Stijn, Franx, Marijn, Finlator, Kristian, ...
(Abridged) We present the evolution of the volume averaged properties of the rest-frame optically luminous galaxy population to z~3, determined from four disjoint deep fields with optical to...
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...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Förster Schreiber, Natascha M., Gawiser, Eric, Illingworth, Garth D., ...
Rudnick, Gregory, Labbé, Ivo, Förster Schreiber, Natascha M., Wuyts, Stijn, Franx, Marijn, Finlator, Kristian, ...
The size evolution of galaxies since z~3: combining SDSS, GEMS, and FIRES (2006)
Trujillo, Ignacio, Förster Schreiber, Natascha M., Rudnick, Gregory, Barden, Marco, Franx, Marijn, Rix, Hans-Walter, ...
Van Der Wel, Arjen, Franx, Marijn, Van Dokkum, Pieter G., Rix, Hans-Walter, Illingworth, Garth D., Huang, Juasheng, ...
The size evolution of galaxies since z~3: Combining SDSS, GEMS, and FIRES (2006)
Trujillo, Ignacio, Förster Schreiber, Natascha M., Rudnick, Gregory, Barden, Marco, Franx, Marijn, Rix, Hans-Walter, ...
We present the evolution of the luminosity-size and stellar mass-size relations of luminous (LV>~3.4×1010 h-270 Lsolar) and massive (M*>~3×1010 h-270 Msolar) galaxies in the last ~11 Gyr. We use...
Rudnick, Gregory, Labbé, Ivo, Förster Schreiber, Natascha M., Wuyts, Stijn, Franx, Marijn, Finlator, Kristian, ...
We present the evolution of the volume-averaged properties of the rest-frame optically luminous (LV>3×1010 h-270 Lsolar) galaxy population to z~3, determined from four disjoint deep fields. We...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Quadri, Ryan, Gawiser, Eric, Herrera, David, ...
We present first results of a spectroscopic survey targeting K-selected galaxies at z=2.0-2.7 using the Gemini near-infrared spectrograph (GNIRS). We obtained near-infrared spectra with a wavelength...
Kriek, Mariska, Van Dokkum, Pieter G., Franx, Marijn, Förster Schreiber, Natascha M., Gawiser, Eric, Illingworth, Garth D., ...
We use near-infrared (NIR) spectroscopy obtained with the GNIRS on Gemini, NIRSPEC on the Keck, and ISAAC on the VLT to study the rest-frame optical continua of three ``distant red galaxies'' (with...
The Recent and Continuing Assembly of Field Ellipticals by Red Mergers (2005)
We present a study of tidal debris associated with 126 nearby red galaxies selected from the MUSYC and NDWFS surveys. In the full sample 67 galaxies (53%) show morphological signatures of tidal...
The size evolution of galaxies since z~3: combining SDSS, GEMS and FIRES (2005)
Trujillo, Ignacio, Schreiber, Natascha M. Forster, Rudnick, Gregory, Barden, Marco, Franx, Marijn, Rix, Hans-Walter, ...
We present the evolution of the luminosity-size and stellar mass-size relations of luminous (L_V>3.4x10^10h_70^-2L_sun) and of massive (M_*>3x10^10h_70^-2M_sun) galaxies in the last ~11 Gyr. We use...
A JavaScript Passive Evolution Calculator (2005)
Van Dokkum, Pieter G., Franx, Marijn
We present a JavaScript calculator which provides the redshift evolution of the luminosities and colors of passively evolving galaxies for a range of rest-frame filters. In its simplest form it gives...
Labbé, Ivo, Huang, Jiasheng, Franx, Marijn, Rudnick, Gregory, Barmby, Pauline, Daddi, Emanuele, ...
We present deep 3.6-8 mum imaging of the Hubble Deep Field-South with the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We study distant red galaxies (DRGs) at z>2 selected by...
Observing Cluster Galaxies and their Progenitors with JDEM (2004)
The Joint Dark Energy Mission (JDEM) is expected to have a field-of-view that is several orders of magnitude larger than that of current instruments on the Hubble Space Telescope, with only slightly...
Rubin, Kate H. R., Van Dokkum, Pieter G., Coppi, Paolo, Johnson, Olivia, Schreiber, Natascha M. Forster, Franx, Marijn, ...
Very deep near-infrared observations have recently uncovered a significant population of red galaxies at redshifts z>2. These distant red galaxies (DRGs) are efficiently selected by the criterion...
Rubin, Kate H. R., Van Dokkum, Pieter G., Coppi, Paolo, Johnson, Olivia, Förster Schreiber, Natascha M., Franx, Marijn, ...
The Luminosity-Size and Mass-Size Relations of Galaxies out to z similar to 3 (2004)
Trujillo, Ignacio, Rudnick, Gregory, Rix, Hans-Walter, Labbé, Ivo, Franx, Marijn, Daddi, Emanuele, ...
Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Daddi, Emanuele, Kraiberg-Knudsen, Kirsten, Labbé, Ivor, ...
The luminosity-size and mass-size relations of galaxies out to z ~ 3 (2004)
Trujillo, Ignacio, Rudnick, Gregory, Rix, Hans-Walter, Labbé, Ivo, Franx, Marijn, Daddi, Emanuele, ...
The luminosity-size and mass-size distributions of galaxies out to z~3 are presented. We use very deep near-infrared images of the Hubble Deep Field-South in the Js, H, and Ks bands, taken as part of...
Van Dokkum, Pieter G., Franx, Marijn, Förster Schreiber, Natascha M., Illingworth, Garth D., Daddi, Emanuele, Knudsen, Kirsten Kraiberg, ...
We recently identified a substantial population of galaxies at zgt;2 with comparatively red rest-frame optical colors. These distant red galaxies (DRGs) are efficiently selected by the simple...
Wuyts, Stijn, Van Dokkum, Pieter G., Kelson, Daniel D., Franx, Marijn, Illingworth, Garth D.
We study the fundamental plane relation in high redshift clusters using a sample of 26 galaxies in MS 2053-04 (z=0.583) and 22 galaxies in MS 1054-03 (z=0.83). The zeropoint and scatter are compared...
A unique small-scale gravitational arc in Abell 1201 (2003)
Edge, Alastair C., Smith, Graham P., Sand, David J., Treu, Tommaso, Ebeling, Harald, Allen, Steven W., ...
We present a snapshot Hubble Space Telescope (HST) image of the galaxy cluster A1201 (z=0.169), revealing a tangential arc 2arcsec from the brightest cluster galaxy (BCG). Keck-ESI spectroscopy...
Rudnick, Gregory, Rix, Hans-Walter, Franx, Marijn, Labbe, Ivo, Blanton, Michael, Daddi, Emanuele, ...
We present the evolution of the rest-frame optical luminosity density, of the integrated rest-frame optical color, and of the stellar mass density for a sample of Ks-band selected galaxies in the...
The Luminosity-Size and Mass-Size Relations of Galaxies out to z~3 (2003)
Trujillo, Ignacio, Rudnick, Gregory, Rix, Hans-Walter, Labbe, Ivo, Franx, Marijn, Daddi, Emanuele, ...
The luminosity-size and stellar mass-size distributions of galaxies out to z~3 is presented. We use very deep near-infrared images of the Hubble Deep Field South in the J_s, H, and K_s bands, taken...
On the Assembly History of Early-Type Galaxies in the Hubble Deep Field North (2003)
Van Dokkum, Pieter G., Ellis, Richard S.
We present deep Keck spectroscopy for a sample of I
A Significant Population of Red, Near-IR Selected High Redshift Galaxies (2003)
Franx, Marijn, Labbe, Ivo, Rudnick, Gregory, Van Dokkum, Pieter G., Daddi, Emanuele, Schreiber, Natascha M. Forster, ...
We use very deep near-infrared photometry of the Hubble Deep Field South taken with ISAAC/VLT to identify a population of high redshift galaxies with rest- frame optical colors similar to those of...
Van Dokkum, Pieter G., Schreiber, Natascha M. Forster, Franx, Marijn, Daddi, Emanuele, Illingworth, Garth D., Labbe, Ivo, ...
We confirm spectroscopically the existence of a population of galaxies at z>~2 with rest-frame optical colors similar to normal nearby galaxies. The galaxies were identified by their red...
Labbé, Ivo, Frankx, Marijn, Rudnick, Gregory, Förster Schreiber, Natascha M., Rix, Hans-Walter, Moorwood, Alan, ...
Rudnick, Gregory, Rix, Hans-Walter, Franx, Marijn, Labbé, Ivo, Blanton, Michael, Daddi, Emanuele, ...
A significant population of red, near-infrared-selected high-redshift galaxies (2003)
Franx, Marijn, Labbé, Ivo, Rudnick, Gregory, Van Dokkum, Pieter G., Daddi, Emanuele, Förster Schreiber, Natascha M., ...
We use very deep near-infrared photometry of the Hubble Deep Field-South taken with ISAAC on the Very Large Telescope to identify a population of high-redshift galaxies with rest-frame optical colors...
Labbé, Ivo, Franx, Marijn, Rudnick, Gregory, Schreiber, Natascha M., Förster Schreiber, Natascha M., Rix, Hans-Walter, ...
We present deep near-infrared (NIR) Js-, H-, and Ks-band ISAAC imaging of the Wide Field Planetary Camera 2 (WFPC2) field of the Hubble Deep Field South (HDF-S). The 2.5 arcmin; times;2.5 arcmin;...
Large disklike galaxies at high redshift (2003)
Labbé, Ivo, Rudnick, Gregory, Franx, Marijn, Daddi, Emanuele, Van Dokkum, Pieter G., Förster Schreiber, Natascha M., ...
Using deep near-infrared imaging of the Hubble Deep Field-South with the Infrared Spectrometer and Array Camera on the Very Large Telescope, we find six large disklike galaxies at redshifts...
Rudnick, Gregory, Rix, Hans-Walter, Franx, Marijn, Labbé, Ivo, Blanton, Michael, Daddi, Emanuele, ...
We present the evolution of the rest-frame optical luminosity density jrest lambda;, the integrated rest-frame optical color, and the stellar mass density, rho;*, for a sample of Ks band-selected...
Van Dokkum, Pieter G., Förster Schreiber, Natascha M., Franx, Marijn, Daddi, Emanuele, Illingworth, Garth D., Labbé, Ivo, ...
We confirm spectroscopically the existence of a population of galaxies at z gt;~2 with rest-frame optical colors similar to normal nearby galaxies. The galaxies were identified by their red...
Fires: Ultradeep near-infrared imaging with Vlt/Isaac (2003)
Labbé, Ivo, Franx, Marijn, Forster Schreiber, Natascha M., Rudnick, Gregory, Daddi, Emanuele, Moorwood, Alan F., ...
Van Dokkum, Pieter G., Stanford, S. A.
We present results on the Fundamental Plane (FP) of early-type galaxies in the cluster RDCS J0848+4453 at z=1.27. Internal velocity dispersions of three K-selected early-type galaxies are determined...
Formation and Evolution of Galaxies in Clusters (2001)
Elliptical and S0 galaxies dominate the galaxy population in nearby rich clusters such as Coma. Studies of the evolution of the colors, M/L ratios, and line indices of early-type galaxies indicate...
Hoekstra, Henk, Franx, Marijn, Kuijken, Konrad, Van Dokkum, Pieter G.
We have detected the weak lensing signal induced by the cluster of galaxies MS 2053-04 (z=0.58) from a two-colour mosaic of 6 HST WFPC2 images. The best fit singular isothermal sphere model to the...
Cosmic-Ray Rejection by Laplacian Edge Detection (2001)
Conventional algorithms for rejecting cosmic-rays in single CCD exposures rely on the contrast between cosmic-rays and their surroundings, and may produce erroneous results if the Point Spread...
U, B and r band luminosity functions of galaxies in the Coma cluster (2001)
Beijersbergen, Marco, Hoekstra, Henk, Van Dokkum, Pieter G., Van Der Hulst, Thijs
We present a deep multi-colour CCD mosaic of the Coma cluster (Abell 1656), covering 5.2 deg^2 in the B and r bands, and 1.3 deg^2 in the U band. This large, homogeneous data set provides a valuable...
Luminosity Evolution of Field Early-Type Galaxies to z=0.55 (2001)
Van Dokkum, Pieter G., Franx, Marijn, Kelson, Daniel D., Illingworth, Garth D.
We study the Fundamental Plane of field early-type galaxies at intermediate redshift, using HST WFPC2 observations and deep Keck spectroscopy. Structural parameters and internal velocity dispersions...
The Evolution of Balmer Absorption Line Strengths in E/S0 Galaxies from z=0 to z=0.83 (2001)
Kelson, Daniel D., Illingworth, Garth D., Franx, Marijn, Van Dokkum, Pieter G.
We present new results from a systematic study of absorption line strengths of galaxies in clusters approaching redshifts of unity. In this paper, we specifically compare the strengths of the...
Morphological Evolution and the Ages of Early-Type Galaxies in Clusters (2001)
Van Dokkum, Pieter G., Franx, Marijn
Morphological and spectroscopic studies of high redshift clusters indicate that a significant fraction of present-day early-type galaxies was transformed from star forming galaxies at z
Van Dokkum, Pieter G., Franx, Marijn, Fabricant, Daniel, Illingworth, Garth D., Kelson, Daniel D.
We present a study of 81 I selected, spectroscopically-confirmed members of the X-ray cluster MS1054-03 at z=0.83. Redshifts and spectral types were determined from Keck spectroscopy. Morphologies...
Kelson, Daniel D., Illingworth, Garth D., Van Dokkum, Pieter G., Franx, Marijn
Using HST imaging of CL1358+62 (z=0.33) structural parameters are derived for 53 cluster members. We fit integrated r^{1/4}-laws to the integrated S.B. profiles, and fit two-dimensional r^{1/4}-law...
The Evolution of Stellar Populations in Intermediate Redshift Clusters (1999)
Kelson, Daniel D., Illingworth, Garth D., Franx, Marijn, Van Dokkum, Pieter G.
The $M/L$ ratios and absorption line-strengths of distant cluster galaxies can be used to directly study their stellar populations, determine their redshift of formation, their scatter in ages, and...
Kelson, Daniel D., Illingworth, Garth D., Van Dokkum, Pieter G., Franx, Marijn
We define a large sample of galaxies for use in a study of the fundamental plane in the intermediate redshift cluster CL1358+62 at $z=0.33$. We have analyzed high resolution spectra for 55 members of...
Kelson, Daniel D., Illingworth, Garth D., Van Dokkum, Pieter G., Franx, Marijn
Keck spectroscopy and Hubble Space Telescope WFPC2 imaging over a 1.5x1.5 Mpc field of CL1358+62 at z=0.33 are used to study the Fundamental Plane of galaxies based on a new, large sample of 53...
Van Dokkum, Pieter G., Franx, Marijn, Fabricant, Daniel, Kelson, Daniel D., Illingworth, Garth D.
We present a morphological study of the galaxy population of the luminous X-ray cluster MS1054-03 at z=0.83. The sample consists of 81 spectroscopically confirmed cluster members in a 3 x 2 Mpc area...
The evolution of cluster E and S0 galaxies measured from the Fundamental Plane (1999)
Jorgensen, Inger, Franx, Marijn, Hjorth, Jens, Van Dokkum, Pieter G.
New photometry and spectroscopy for the two rich clusters Abell 665 and Abell 2218 are presented and used to establish the Fundamental Plane (FP) for the clusters. The FP for these two clusters adds...
Van Dokkum, Pieter G., Franx, Marijn, Kelson, Daniel D., Illingworth, Garth D.
We present deep spectroscopy with the Keck telescope of eight galaxies in the luminous X-ray cluster MS1054-03 at z=0.83. The data are combined with imaging observations from the Hubble Space...
Van Dokkum, Pieter G., Franx, Marijn, Kelson, Daniel D., Illingworth, Garth D., Fisher, David, Fabricant, Daniel
We use a large mosaic of HST WFPC2 images to measure the colors and morphologies of 194 spectroscopically confirmed members of the rich galaxy cluster CL1358+62 at z=0.33. We study the...
A Pair of Lensed Galaxies at z=4.92 in the Field of CL1358+62 (1997)
Franx, Marijn, Illingworth, Garth D., Kelson, Daniel D., Van Dokkum, Pieter G., Tran, Kim-Vy
The cluster CL1358+62 displays a prominent red arc in WFPC2 images obtained with the Hubble Space Telescope. Keck spectra of the arc show Ly alpha emission at 7204 Angstrom, a continuum drop blueward...
Kelson, Daniel D., Van Dokkum, Pieter G., Franx, Marijn, Illingworth, Garth D., Fabricant, Daniel
We present new results on the Fundamental Plane of galaxies in two rich clusters, Cl1358+62 at $z=0.33$ and MS2053--04 at $z=0.58$, based on Keck and HST observations. Our new data triple the sample...