Moro-Martin, Amaya, Turner, Edwin L., Loeb, Abraham
Planetesimal formation is a common by-product of the star formation process. Taking the dynamical history of the Solar system as a guideline -- in which the planetesimal belts were heavily depleted...
Improved Measurement of the Rossiter-McLaughlin Effect in the Exoplanetary System HD 17156 (2009)
Narita, Norio, Hirano, Teruyuki, Sato, Bun'ei, Winn, Joshua N., Suto, Yasushi, Turner, Edwin L., ...
We present an improved measurement of the Rossiter-McLaughlin effect for the exoplanetary system HD 17156, based on radial-velocity data gathered with the Subaru 8.2m telescope throughout the...
Photometric Variability in Earthshine Observations (2009)
Langford, Sally V., Wyithe, J. Stuart B., Turner, Edwin L.
The identification of an extrasolar planet as Earth-like will depend on the detection of atmospheric signatures or surface non-uniformities. In this paper we present spatially unresolved flux light...
The Spin-Orbit Misalignment of the XO-3 Exoplanetary System (2009)
Winn, Joshua N., Johnson, John Asher, Fabrycky, Daniel, Howard, Andrew W., Marcy, Geoffrey W., Narita, Norio, ...
We present photometric and spectroscopic observations of the 2009 Feb. 2 transit of the exoplanet XO-3b. The new data show conclusively that the planetary orbital axis and stellar rotation axis are...
The prograde orbit of exoplanet TrES-2b (2008)
Winn, Joshua N., Johnson, John Asher, Narita, Norio, Suto, Yasushi, Turner, Edwin L., Fischer, Debra A., ...
We monitored the Doppler shift of the G0 V star TrES-2 throughout a transit of its giant planet. The anomalous Doppler shift due to stellar rotation (the Rossiter-McLaughlin effect) is discernible in...
Measurement of the Spin-Orbit Angle of Exoplanet HAT-P-1b (2008)
Johnson, John A., Winn, Joshua N., Narita, Norio, Enya, Keigo, Williams, Peter K. G., Marcy, Geoffrey W., ...
We present new spectroscopic and photometric observations of the HAT-P-1 planetary system. Spectra obtained during three transits exhibit the Rossiter-McLaughlin effect, allowing us to measure the...
On the Eccentricity Distribution of Exoplanets from Radial Velocity Surveys (2008)
We investigate the estimation of orbital parameters by least-$\chi^2$ Keplerian fits to radial velocity (RV) data using synthetic data sets. We find that while the fitted period is fairly accurate,...
The Prograde Orbit of Exoplanet TrES-2b (2008)
Winn, Joshua N., Johnson, John Asher, Narita, Norio, Suto, Yasushi, Turner, Edwin L., Fischer, Debra A., ...
We monitored the Doppler shift of the G0V star TrES-2 throughout a transit of its giant planet. The anomalous Doppler shift due to stellar rotation (the Rossiter-McLaughlin effect) is discernible in...
Oguri, Masamune, Inada, Naohisa, Strauss, Michael A., Kochanek, Christopher S., Richards, Gordon T., Schneider, Donald P., ...
We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., Shin, Min-Su, Richards, Gordon T., Hennawi, Joseph F., ...
We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the...
Oguri, Masamune, Inada, Naohisa, Strauss, Michael A., Kochanek, Christopher S., Richards, Gordon T., Schneider, Donald P., ...
We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., Shin, Min-Su, Richards, Gordon T., Hennawi, Joseph F., ...
We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the...
Tomislav Kundi'c, Wesley N. Colley, J. Richard Gott, Sangeeta Malhotra, Ue-li Pen, James E. Rhoads, ...
CCD photometry of the gravitational lens system 0957+561A,B in the g and r bands was obtained on alternate nights, weather permitting, from December 1994 through May 1995 using the Double Imaging...
Through a Lens Darkly: Evidence for Dusty Gravitational Lenses (2007)
Sangeeta Malhotra, James E. Rhoads, Edwin L. Turner
Foreground galaxies that amplify the light from background quasars may also dim that light if the galaxies contain enough dust. Extinction by dust in lenses could hide the large number of lensed...
Tomislav Kundi'c, Edwin L. Turner, Wesley N. Colley, J. Richard Gott, James E. Rhoads, Yun Wang, ...
Continued photometric monitoring of the gravitational lens system 0957+561A,B in the g and r bands with the Apache Point Observatory (APO) 3.5 m telescope during 1996 shows a sharp g band event in...
Quasar Populations in a Cosmological Constant Dominated Flat Universe (2007)
Sangeeta Malhotra, Edwin L. Turner
Most physical properties derived for quasars, as single entities or as a population, depend upon the cosmology assumed. In this paper, we calculate the quasar luminosity function and some related...
Liu, Xin, Turner, Edwin L., Narita, Norio, Suto, Yasushi, Winn, Joshua N., Yamada, Toru, ...
We present a new technique for detecting scattered starlight from transiting, close-orbiting extrasolar giant planets (CEGPs) that has the virtues of simplicity, robustness, linearity, and...
Oguri, Masamune, Inada, Naohisa, Strauss, Michael A., Kochanek, Christopher S., Richards, Gordon T., Schneider, Donald P., ...
We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., Shin, Min-Su, Richards, Gordon T., Hennawi, Joseph F., ...
We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the...
Spin-Orbit Alignment for the Eccentric Exoplanet HD 147506b (2007)
Winn, Joshua N., Johnson, John Asher, Peek, Kathryn M. G., Marcy, Geoffrey W., Bakos, Gaspar A., Enya, Keigo, ...
The short-period exoplanet HD 147506b (also known as HAT-P-2b) has an eccentric orbit, raising the possibility that it migrated through planet-planet scattering or Kozai oscillations accompanied by...
Reid, I. Neill, Turner, Edwin L., Turnbull, Margaret C., Mountain, M., Valenti, Jeff A.
The chemical composition of Earth's atmosphere has undergone substantial evolution over the course of its history. It is possible, even likely, that terrestrial planets in other planetary systems...
Measurement of the Rossiter--McLaughlin Effect in the Transiting Exoplanetary System TrES-1 (2007)
Narita, Norio, Enya, Keigo, Sato, Bun'ei, Ohta, Yasuhiro, Winn, Joshua N., Suto, Yasushi, ...
We report a measurement of the Rossiter--McLaughlin effect in the transiting extrasolar planetary system TrES-1, via simultaneous spectroscopic and photometric observations with the Subaru and MAGNUM...
Measurement of the Spin-Orbit Alignment in the Exoplanetary System HD 189733 (2006)
Winn, Joshua N., Johnson, John A., Marcy, Geoffrey W., Butler, R. Paul, Vogt, Steven S., Henry, Gregory W., ...
We present spectroscopy of a transit of the exoplanet HD 189733b. By modeling the Rossiter-McLaughlin effect (the anomalous Doppler shift due to the partial eclipse of the rotating stellar surface),...
The effect of FIR emission from SDSS galaxies on the SFD Galactic extinction map (2006)
Yahata, Kazuhiro, Yonehara, Atsunori, Suto, Yasushi, Turner, Edwin L., Broadhurst, Tom, Finkbeiner, Douglas P.
We compare the most successful and widely used map of Galactic dust extinction, provided by Schlegel, Finkbeiner & Davis (1998; hereafter SFD), to the galaxy number counts in the Sloan Digital Sky...
The Sloan Digital Sky Survey Quasar Lens Search. I. Candidate Selection Algorithm (2006)
Oguri, Masamune, Inada, Naohisa, Pindor, Bartosz, Strauss, Michael A., Richards, Gordon T., Hennawi, Joseph F., ...
We present an algorithm for selecting an uniform sample of gravitationally lensed quasar candidates from low-redshift (0.6
Extrasolar Transiting Planet Search with Subaru Suprime-Cam (2006)
Urakawa, Seitaro, Yamada, Toru, Suto, Yasushi, Turner, Edwin. L., Itoh, Yoichi, Mukai, Tadashi, ...
We report the results of a prototype photometric search for transiting extrasolar planets using Subaru Suprime-Cam. Out of about 100,000 stars monitored around the Galactic plane (l=90 degree,b=0...
Joshua N. Winn, John Asher Johnson, Geoffrey W. Marcy, R. Paul Butler, Steven S. Vogt, Gregory W. Henry, ...
We present spectroscopy of a transit of the exoplanet HD 189733b. By modeling the Rossiter-McLaughlin effect (the anomalous Doppler shift due to the partial eclipse of the rotating stellar surface),...
Near-Infrared Photometric Monitoring of a Pre-Main-Sequence Object KH 15D (2005)
Kusakabe, Nobuhiko, Tamura, Motohide, Nakajima, Yasushi, Kandori, Ryo, Ishihara, Akika, Nagata, Tetsuya, ...
An extensive photometric monitoring of KH 15D, an enigmatic variable in the young star cluster NGC 2264, has been conducted. Simultaneous and accurate near-infrared (JHKs-bands) photometry is...
SDSSJ102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar (2005)
Pindor, Bart, Eisenstein, Daniel J., Gregg, Michael D., Becker, Robert H., Inada, Naohisa, Oguri, Masamune, ...
We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) dataset. We have confirmed that SDSS J102111.02+491330.4 is a previously...
Subaru HDS Transmission Spectroscopy of the Transiting Extrasolar Planet HD 209458b (2005)
Narita, Norio, Suto, Yasushi, Winn, Joshua N., Turner, Edwin L., Aoki, Wako, Leigh, Christopher J., ...
We have searched for absorption in several common atomic species due to the atmosphere or exosphere of the transiting extrasolar planet HD 209458b, using high precision optical spectra obtained with...
Measurement of Spin-Orbit Alignment in an Extrasolar Planetary System (2005)
Winn, Joshua N., Noyes, Robert W., Holman, Matthew J., Charbonneau, David, Ohta, Yasuhiro, Taruya, Atsushi, ...
We determine the stellar, planetary, and orbital properties of the transiting planetary system HD 209458, through a joint analysis of high-precision radial velocities, photometry, and timing of the...
Vegetation's Red Edge: A Possible Spectroscopic Biosignature of Extraterrestrial Plants (2005)
Seager, Sara, Turner, Edwin L., Schafer, Justin, Ford, Eric B.
Earth's deciduous plants have a sharp order-of-magnitude increase in leaf reflectance between approximately 700 and 750 nm wavelength. This strong reflectance of Earth's vegetation suggests that...
Winn, Joshua N., Suto, Yasushi, Turner, Edwin L., Narita, Norio, Frye, Brenda L., Aoki, Wako, ...
There is evidence that the transiting planet HD 209458b has a large exosphere of neutral hydrogen, based on a 15% decrement in Lyman-alpha flux that was observed by Vidal-Madjar et al. during...
Microlensing of the Broad Emission Line Region in the Quadruple Lens SDSS J1004+4112 (2004)
Richards, Gordon T., Keeton, Charles R., Pindor, Bartosz, Hennawi, Joseph F., Hall, Patrick B., Turner, Edwin L., ...
We present seven epochs of spectroscopy on the quadruply imaged quasar SDSS J1004+4112, spanning observed-frame time delays from 1 to 322 days. The spectra reveal differences in the emission lines...
Oguri, Masamune, Inada, Naohisa, Keeton, Charles R., Pindor, Bartosz, Hennawi, Joseph F., Gregg, Michael D., ...
We study the recently discovered gravitational lens SDSS J1004+4112, the first quasar lensed by a cluster of galaxies. It consists of four images with a maximum separation of 14.62". The system was...
Actively Star Forming Elliptical Galaxies at Low Redshifts in the Sloan Digital Sky Survey (2003)
Fukugita, Masataka, Nakamura, Osamu, Turner, Edwin L., Helmboldt, Joe, Nichol, R. C.
We report discovery of actively star forming elliptical galaxies in a morphologically classified sample of bright galaxies at a low redshift obtained from the Sloan Digital Sky Survey. The emission...
SDSS J115517.35+634622.0: A Newly Discovered Gravitationally Lensed Quasar (2003)
Pindor, Bart, Eisenstein, Daniel J., Inada, Naohisa, Gregg, Michael D., Becker, Robert H., Brinkmann, Jon, ...
We report the discovery of SDSSJ115517.35+634622.0, a previously unknown gravitationally lensed quasar. The lens system exhibits two images of a $z = 2.89$ quasar, with an image separation of...
A New Method to Map Flares in Quasars (2003)
Yonehara, Atsunori, Mineshige, Shin, Takei, Yoh, Chartas, George, Turner, Edwin L.
Recently, Chartas et al. (2001) detected a rapid X-ray flare in the gravitationally lensed, multiple image quasar RX J0911.4+0551. Dramatic events, such as rapid X-ray flares, are useful in providing...
Determining the Lensing Fraction of SDSS Quasars: Methods and Results from the EDR (2003)
Pindor, Bart, Turner, Edwin L., Lupton, Robert H., Brinkmann, J.
We present an algorithm for selecting gravitational lens candidates from amongst Sloan Digital Sky Survey (SDSS) quasars. In median Early Data Release (EDR) conditions, the algorithm allows for the...
A gravitationally lensed quasar with quadruple images separated by 14.62arcseconds (2003)
Inada, Naohisa, Oguri, Masamune, Pindor, Bartosz, Hennawi, Joseph F., Chiu, Kuenley, Zheng, Wei, ...
Gravitational lensing is a powerful tool for the study of the distribution of dark matter in the Universe. The cold-dark-matter model of the formation of large-scale structures (that is, clusters of...
A Model of the Temporal Variability of Optical Light from Extrasolar Terrestrial Planets (2002)
Ford, Eric B., Seager, Sara, Turner, Edwin L.
The light scattered by an extrasolar Earth-like planet's surface and atmosphere will vary in intensity and color as the planet rotates; the resulting light curve will contain information about the...
Gravitational Lensing Magnification and Time Delay Statistics for Distant Supernovae (2002)
Oguri, Masamune, Suto, Yasushi, Turner, Edwin L.
Strong gravitational lensing of distant supernovae (SNe), particularly Type Ia's, has some exploitable properties not available when other sorts of cosmologically distant sources are lensed. One such...
Strong Gravitational Lensing Time Delay Statistics and the Density Profile of Dark Halos (2001)
Oguri, Masamune, Taruya, Atsushi, Suto, Yasushi, Turner, Edwin L.
The distribution of differential time delays \Delta t between images produced by strong gravitational lensing contains information on the mass distributions in the lensing objects as well as on...
Predictions for the Counts of Faint, High-Redshift Galaxies in the Mid-Infrared (2001)
Haiman, Zoltan, Spergel, David N., Turner, Edwin L.
Deep mid-infrared (MIR) observations could reveal a population of faint, high-redshift (z>3) dusty starburst galaxies that are the progenitors of present-day spheroids or bulges, and are beyond the...
Empirical constraints on alternative gravity theories from gravitational lensing (2001)
Mortlock, Daniel J., Turner, Edwin L.
If it is hypothesised that there is no dark matter then some alternative gravitational theory must take the place of general relativity (GR) on the largest scales. Dynamical measurements can be used...
Gravitational lensing in modified Newtonian dynamics (2001)
Mortlock, Daniel J., Turner, Edwin L.
Modified Newtonian dynamics (MOND) is an alternative theory of gravity that aims to explain large-scale dynamics without recourse to any form of dark matter. However the theory is incomplete, lacking...
Gravitational lensing and modified Newtonian dynamics (2001)
Mortlock, Daniel J., Turner, Edwin L.
Gravitational lensing is most often used as a tool to investigate the distribution of (dark) matter in the universe, but, if the mass distribution is known a priori, it becomes, at least in...
Wambsganss, Joachim, Schmidt, Robert W., Colley, Wesley N., Kundic, Tomislav, Turner, Edwin L.
If the halo of the lensing galaxy 0957+561 is made of massive compact objects (MACHOs), they must affect the lightcurves of the quasar images Q0957+561 A and B differently. We search for this...
Superclustering of Faint Galaxies in the Field of a QSO Concentration at z~1.1 (2000)
Tanaka, Ichi, Yamada, Toru, Turner, Edwin L., Suto, Yasushi
We report on a wide-area (48' x 9') imaging survey of faint galaxies in R and I bands toward the 1338+27 field where an unusual concentration of five QSOs at z\sim1.1, embedded in a larger-scale...
A Model-Independent Photometric Redshift Estimator (1999)
Wang, Yun, Bahcall, Neta, Turner, Edwin L.
We derive a simple empirical photometric redshift estimator using a training set of galaxies with multiband photometry and measured redshifts in the Hubble Deep Field (HDF). This estimator is...
An X-Ray Microlensing Test of AU-Scale Accretion Disk Structure in Q2237+0305 (1998)
Yonehara, Atsunori, Mineshige, Shin, Manmoto, Tadahiro, Fukue, Jun, Umemura, Masayuki, Turner, Edwin L.
The innermost regions of quasars can be resolved by a gravitational-lens {\lq}telescope{\rq} on scales down to a few AU. For the purpose, X-ray observations are most preferable, because X-rays...
A Catalog of Color-based Redshift Estimates for z (1998)
Wang, Yun, Bahcall, Neta, Turner, Edwin L.
We derive simple empirical color-redshift relations for $z\la 4$ galaxies in the Hubble Deep Field (HDF) using a linear function of three photometric colors ($U-B$, $B-V$, $V-I$). The dispersion...
The Near-Infrared Galaxy Counts Anomaly: Local Underdensity or Strong Evolution? (1998)
Phillips, L. A., Turner, Edwin L.
We analyze bright-end (K = 10 -17) galaxy counts from a number of near-infrared galaxy surveys. All studies available as of mid-1997, considered individually or collectively, show that the observed...
A maximum-likelihood method for improving faint source flux and color estimates (1997)
Hogg, David W., Turner, Edwin L.
Flux estimates for faint sources or transients are systematically biased high because there are far more truly faint sources than bright. Corrections which account for this effect are presented as a...
Wang, Yun, Spergel, David N., Turner, Edwin L.
Low amplitude (linear regime) cosmic density fluctuations lead to spatial variations in the locally measurable value of $H_0$ (denoted as $H_L$), $\delta_H \equiv (H_L-H_0)/H_0$, which are of order...
Caustics, Critical Curves and Cross Sections for Gravitational Lensing by Disk Galaxies (1997)
We study strong gravitational lensing by spiral galaxies, modeling them as infinitely thin uniform disks embedded in singular isothermal spheres. We derive general properties of the critical curves...
Astrophysical Effects of Extreme Gravitational Lensing Events (1997)
Every astrophysical object (dark or not) is a gravitational lens, as well as a receiver/observer of the light from sources lensed by other objects in its neighborhood. For a given pair of source and...
Through a Lens Darkly: Evidence for Dusty Gravitational Lenses (1996)
Malhotra, Sangeeta, Rhoads, James E., Turner, Edwin L.
Foreground galaxies that amplify the light from background quasars may also dim that light if the galaxies contain enough dust. Extinction by dust in lenses could hide the large number of lensed...
Kundic, Tomislav, Turner, Edwin L., Colley, Wesley N., Gott, J. Richard, Rhoads, James E., ...
Photometric monitoring of the gravitational lens system 0957+561A,B in the g and r bands with the Apache Point Observatory (APO) 3.5 m telescope during 1996 shows a sharp g band event in the trailing...
Statistics of Extreme Gravitational Lensing Events. II.The Small Shear Case (1996)
We consider an astrophysical system with a population of sources and a population of lenses. For each pair of source and lens, there is a thin on-axis tube-like volume behind the lens in which the...
Gravitational Lensing of Gravitational Waves from Merging Neutron Star Binaries (1996)
Wang, Yun, Stebbins, Albert, Turner, Edwin L.
We discuss the gravitational lensing of gravitational waves from merging neutron star binaries, in the context of advanced LIGO type gravitational wave detectors. We consider properties of the...
Dynamical Mass Estimates of Large-Scale Filaments in Redshift Surveys (1996)
Eisenstein, Daniel J., Loeb, Abraham, Turner, Edwin L.
We propose a new method to measure the mass of large-scale filaments in galaxy redshift surveys. The method is based on the fact that the mass per unit length of isothermal filaments depends only on...
The Cosmological Constant and Advanced Gravitational Wave Detectors (1996)
Interferometric gravitational wave detectors could measure the frequency sweep of a binary inspiral [characterized by its chirp mass] to high accuracy. The observed chirp mass is the intrinsic chirp...
Unlensing Multiple Arcs in 0024+1654: Reconstruction of the Source Image (1995)
Colley, Wesley N., Tyson, J. Anthony, Turner, Edwin L.
A unique reconstruction of the image of a high redshift source galaxy responsible for multiple long arcs in the z = 0.4 cluster 0024+1654 is obtained by inverse lensing. Deep B and I imaging with the...
Statistics of Extreme Gravitational Lensing Events. I.The Zero Shear Case (1995)
For a given source and lens pair, there is a thin on-axis tube-like volume behind the lens in which the radiation flux from the source is greatly increased due to gravitational lensing. Any objects...
Quasar Populations in a Cosmological Constant Dominated Flat Universe (1994)
Malhotra, Sangeeta, Turner, Edwin L
Most physical properties derived for quasars, as single entities or as a population, depend upon the cosmology assumed. In this paper, we calculate the quasar luminosity function and some related...
Testing Cosmogonic Models with Gravitational Lensing (1994)
Wambsganss, Joachim, Cen, Renyue, Ostriker, Jeremiah P., Turner, Edwin L.
Gravitational lensing provides a strict test of cosmogonic models. Detailed numerical propagation of light rays through a universe having a distribution of inhomogeneities derived from the standard...
Galaxy Mergers and Gravitational Lens Statistics (1994)
Rix, Hans-Walter, Maoz, Dan, Turner, Edwin L., Fukugita, Masataka
We investigate the impact of hierarchical galaxy merging on the statistics of gravitational lensing of distant sources. Since no definite theoretical predictions for the merging history of luminous...
Unlensing Multiple Arcs in 0024+1654: Reconstruction of the Source Image
Wesley Colley, J. Anthony Tyson, Edwin L. Turner
A unique reconstruction of the image of a high redshift source galaxy responsible for multiple long arcs in the z = 0.4 cluster 0024+1654 is obtained by inverse lensing. Deep B and I imaging with the...