Browsing by Author "Finkbeiner, Douglas"

Now showing items 1-20 of 103

    • Average Spectra of Massive Galaxies in the Sloan Digital Sky Survey 

      Eisenstein, Daniel James; Hogg, David W.; Fukugita, Masataka; Nakamura, Osamu; Bernardi, Mariangela; Finkbeiner, Douglas; Schlegel, David J.; Brinkmann, J.; Connolly, Andrew J.; Csabai, Istvan; Gunn, James E.; Ivezi?, ?eljko; Lamb, Don Q.; Loveday, Jon; Munn, Jeffrey A.; Nichol, Robert C.; Schneider, Donald P.; Strauss, Michael A.; Szalay, Alex; York, Don G. (IOP Publishing, 2003)
      We combine Sloan Digital Sky Survey spectra of 22,000 luminous, red, bulge-dominated galaxies to get high signal-to-noise ratio average spectra in the rest-frame optical and ultraviolet (2600-7000 Å). The average spectra ...

    • The Blue Tip of the Stellar Locus: Measuring Reddening with the Sloan Digital Sky Survey 

      Schlafly, Edward F.; Finkbeiner, Douglas; Schlegel, David J.; Juric, Mario; Ivezic, Zeljko; Gibson, Robert R.; Knapp, Gillian R.; Weaver, Benjamin A. (IOP Publishing, 2010)
      We present measurements of reddening due to dust using the colors of stars in the Sloan Digital Sky Survey (SDSS). We measure the color of main-sequence turnoff stars by finding the "blue tip" of the stellar locus: the ...

    • Case for a700+GeVWIMP: Cosmic ray spectra from PAMELA, Fermi, and ATIC 

      Cholis, Ilias; Dobler, Gregory; Finkbeiner, Douglas; Goodenough, Lisa; Weiner, Neal (American Physical Society (APS), 2009)
      Multiple lines of evidence indicate an anomalous injection of high-energy e+- in the Galactic halo. The recent e+ fraction spectrum from the Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics (PAMELA) ...

    • The clustering of luminous red galaxies in the Sloan Digital Sky Survey imaging data 

      Padmanabhan, N.; Schlegel, D. J.; Seljak, U.; Makarov, A.; Bahcall, N. A.; Blanton, M. R.; Brinkmann, J.; Eisenstein, D. J.; Finkbeiner, Douglas; Gunn, J. E.; Hogg, D. W.; Ivezic, Z.; Knapp, G. R.; Loveday, J.; Lupton, R. H.; Nichol, R. C.; Schneider, D. P.; Strauss, M. A.; Tegmark, M.; York, D. G. (Oxford University Press (OUP), 2007)
      We present the 3D real-space clustering power spectrum of a sample of ∼600 000 luminous red galaxies measured by the Sloan Digital Sky Survey, using photometric redshifts. These galaxies are old, elliptical systems with ...

    • CMB and 21-cm signals for dark matter with a long-lived excited state 

      Finkbeiner, Douglas; Padmanabhan, Nikhil; Weiner, Neal (American Physical Society (APS), 2008)
      Motivated by the eXciting Dark Matter (XDM) model of Finkbeiner & Weiner, hypothesized to explain the 511 keV signal in the center of the Milky Way, we consider the CMB and 21-cm signatures of models of dark matter with ...

    • CMB constraints on WIMP annihilation: Energy absorption during the recombination epoch 

      Slatyer, Tracy R.; Padmanabhan, Nikhil; Finkbeiner, Douglas (American Physical Society (APS), 2009)
      We compute in detail the rate at which energy injected by dark matter annihilation heats and ionizes the photon-baryon plasma at z ~ 1000, and provide accurate fitting functions over the relevant redshift range for a broad ...

    • Colors of 2625 Quasars at 0 < z < 5 Measured in the Sloan Digital Sky Survey Photometric System 

      Richards, Gordon T.; Fan, Xiaohui; Schneider, Donald P.; Vanden Berk, Daniel E.; Strauss, Michael A.; York, Donald G.; Anderson, Jr., John E.; Anderson, Scott F.; Annis, James; Bahcall, Neta A.; Bernardi, Mariangela; Briggs, John W.; Brinkmann, J.; Brunner, Robert; Burles, Scott; Carey, Larry; Castander, Francisco J.; Connolly, A. J.; Crocker, J. H.; Csabai, István; Doi, Mamoru; Finkbeiner, Douglas; Friedman, Scott D.; Frieman, Joshua A.; Fukugita, Masataka; Gunn, James E.; Hindsley, Robert B.; Ivezic, Zeljko; Kent, Stephen; Knapp, G. R.; Lamb, D. Q.; Leger, R. French ; Long, Daniel C.; Loveday, Jon; Lupton, Robert H.; McKay, Timothy A.; Meiksin, Avery; Merrelli, Aronne; Munn, Jeffrey A.; Newberg, Heidi Jo; Newcomb, Matt; Nichol, R. C.; Owen, Russell; Pier, Jeffrey R.; Pope, Adrian; Richmond, Michael W.; Rockosi, Constance M.; Schlegel, David J.; Siegmund, Walter A.; Smee, Stephen; Snir, Yehuda; Stoughton, Chris; Stubbs, Christopher William; SubbaRao, Mark; Szalay, Alexander S.; Szokoly, Gyula P.; Tremonti, Christy; Uomoto, Alan; Waddell, Patrick; Yanny, Brian; Zheng, Wei (IOP Publishing, 2001)
      We present an empirical investigation of the colors of quasars in the Sloan Digital Sky Survey (SDSS) photometric system. The sample studied includes 2625 quasars with SDSS photometry: 1759 quasars found during SDSS ...

    • Composite Quasar Spectra from the Sloan Digital Sky Survey 

      Vanden Berk, Daniel E.; Richards, Gordon T.; Bauer, Amanda; Strauss, Michael A.; Schneider, Donald P.; Heckman, Timothy M.; York, Donald G.; Hall, Patrick B.; Fan, Xiaohui; Knapp, G. R.; Anderson, Scott F.; Annis, James; Bahcall, Neta A.; Bernardi, Mariangela; Briggs, John W.; Brinkmann, J.; Brunner, Robert; Burles, Scott; Carey, Larry; Castander, Francisco J.; Connolly, A. J.; Crocker, J. H.; Csabai, István; Doi, Mamoru; Finkbeiner, Douglas; Friedman, Scott; Frieman, Joshua A.; Fukugita, Masataka; Gunn, James E.; Hennessy, G. S.; Ivezic, Zeljko; Kent, Stephen; Kunszt, Peter Z.; Lamb, D. Q.; Leger, R. French; Long, Daniel C.; Loveday, Jon; Lupton, Robert H.; Meiksin, Avery; Merelli, Aronne; Munn, Jeffrey A.; Newberg, Heidi Jo; Newcomb, Matt; Nichol, R. C.; Owen, Russell; Pier, Jeffrey R.; Pope, Adrian; Rockosi, Constance M.; Schlegel, David J.; Siegmund, Walter A.; Smee, Stephen; Snir, Yehuda; Stoughton, Chris; Stubbs, Christopher William; SubbaRao, Mark; Szalay, Alexander S.; Szokoly, Gyula P.; Tremonti, Christy; Uomoto, Alan; Waddell, Patrick; Yanny, Brian; Zheng, Wei (IOP Publishing, 2001)
      We have created a variety of composite quasar spectra using a homogeneous data set of over 2200 spectra from the Sloan Digital Sky Survey (SDSS). The quasar sample spans a redshift range of 0.044 ≤ z ≤ 4.789 and an absolute ...

    • Consistent scenarios for cosmic-ray excesses from Sommerfeld-enhanced dark matter annihilation 

      Finkbeiner, Douglas; Goodenough, Lisa; Slatyer, Tracy R; Vogelsberger, Mark; Weiner, Neal (IOP Publishing, 2011)
      Anomalies in direct and indirect detection have motivated models of dark matter consisting of a multiplet of nearly-degenerate states, coupled by a new GeV-scale interaction. We perform a careful analysis of the thermal ...

    • Constraining Spinning Dust Parameters With the WMAP Five-Year Data 

      Dobler, Gregory; Draine, Bruce; Finkbeiner, Douglas (IOP Publishing, 2009)
      We characterize spinning dust emission in the warm ionized medium (WIM) by comparing templates of Galactic dust and Hα with the five-year maps from the Wilkinson Microwave Anisotropy Probe (WMAP). The Hα-correlated microwave ...

    • Cosmological constraints from the SDSS luminous red galaxies 

      Tegmark, Max; Eisenstein, Daniel James; Strauss, Michael A.; Weinberg, David H.; Blanton, Michael R.; Frieman, Joshua A.; Fukugita, Masataka; Gunn, James E.; Hamilton, Andrew J. S.; Knapp, Gillian R.; Nichol, Robert C.; Ostriker, Jeremiah P.; Padmanabhan, Nikhil; Percival, Will J.; Schlegel, David J.; Schneider, Donald P.; Scoccimarro, Roman; Seljak, Uros; Seo, Hee-Jong; Swanson, Molly; Szalay, Alexander S.; Vogeley, Michael S.; Yoo, Jaiyul; Zehavi, Idit; Abazajian, Kevork; Anderson, Scott F.; Annis, James; Bahcall, Neta A.; Bassett, Bruce; Berlind, Andreas; Brinkmann, Jon; Budavari, Tamás; Castander, Francisco; Connolly, Andrew; Csabai, Istvan; Doi, Mamoru; Finkbeiner, Douglas; Gillespie, Bruce; Glazebrook, Karl; Hennessy, Gregory S.; Hogg, David W.; Ivezic, Zeljko; Jain, Bhuvnesh; Johnston, David; Kent, Stephen; Lamb, Donald Q.; Lee, Brian C.; Lin, Huan; Loveday, Jon; Lupton, Robert H.; Munn, Jeffrey A.; Pan, Kaike; Park, Changbom; Peoples, John; Pier, Jeffrey R.; Pope, Adrian; Richmond, Michael; Rockosi, Constance; Scranton, Ryan; Sheth, Ravi K.; Stebbins, Albert; Stoughton, Christopher; Szapudi, István; Tucker, Douglas L.; Berk, Daniel E. Vanden; Yanny, Brian; York, Donald G. (American Physical Society (APS), 2006)
      We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological parameters from the Wilkinson ...

    • Cosmological parameters from SDSS and WMAP 

      Tegmark, Max; Strauss, Michael A.; Blanton, Michael R.; Abazajian, Kevork; Dodelson, Scott; Sandvik, Havard; Wang, Xiaomin; Weinberg, David H.; Zehavi, Idit; Bahcall, Neta A.; Hoyle, Fiona; Schlegel, David; Scoccimarro, Roman; Vogeley, Michael S.; Berlind, Andreas; Budavari, Tamás; Connolly, Andrew; Eisenstein, Daniel James; Finkbeiner, Douglas; Frieman, Joshua A.; Gunn, James E.; Hui, Lam; Jain, Bhuvnesh; Johnston, David; Kent, Stephen; Lin, Huan; Nakajima, Reiko; Nichol, Robert C.; Ostriker, Jeremiah P.; Pope, Adrian; Scranton, Ryan; Seljak, Uroš; Sheth, Ravi K.; Stebbins, Albert; Szalay, Alexander S.; Szapudi, István; Xu, Yongzhong; Annis, James; Brinkmann, J.; Burles, Scott; Castander, Francisco J.; Csabai, Istvan; Loveday, Jon; Doi, Mamoru; Fukugita, Masataka; Gillespie, Bruce; Hennessy, Greg; Hogg, David W.; Ivezic, Zeljko; Knapp, Gillian R.; Lamb, Don Q.; Lee, Brian C.; Lupton, Robert H.; McKay, Timothy A.; Kunszt, Peter; Munn, Jeffrey A.; O’Connell, Liam; Peoples, John; Pier, Jeffrey R.; Richmond, Michael; Rockosi, Constance; Schneider, Donald P.; Stoughton, Christopher; Tucker, Douglas L.; Vanden Berk, Daniel E.; Yanny, Brian; York, Donald G. (American Physical Society (APS), 2004)
      We measure cosmological parameters using the three-dimensional power spectrum P(k) from over 200,000 galaxies in the Sloan Digital Sky Survey (SDSS) in combination with WMAP and other data. Our results are consistent with ...

    • The DEEP2 Galaxy Redshift Survey: Clustering of Galaxies in Early Data 

      Coil, Alison L.; Davis, Marc; Madgwick, Darren S.; Newman, Jeffrey A.; Conselice, Christopher J.; Cooper, Michael; Ellis, Richard S.; Faber, S. M.; Finkbeiner, Douglas; Guhathakurta, Puragra; Kaiser, Nick; Koo, David C.; Phillips, Andrew C.; Steidel, Charles C.; Weiner, Benjamin J.; Willmer, Christopher N. A.; Yan, Renbin (IOP Publishing, 2004)
      We measure the two-point correlation function ξ(rp, π) in a sample of 2219 galaxies between z = 0.7 and 1.35 to a magnitude limit of RAB = 24.1 from the first season of the DEEP2 Galaxy Redshift Survey. From ξ(rp, π) we ...

    • The DEEP2 Galaxy Redshift Survey: Design, Observations, Data Reduction, and Redshifts 

      Newman, Jeffrey A.; Cooper, Michael C.; Davis, Marc; Faber, S. M.; Coil, Alison L.; Guhathakurta, Puragra; Koo, David C.; Phillips, Andrew C.; Conroy, Charlie; Dutton, Aaron A.; Finkbeiner, Douglas; Gerke, Brian F.; Rosario, David J.; Weiner, Benjamin J.; Willmer, C. N. A.; Yan, Renbin; Harker, Justin J.; Kassin, Susan A.; Konidaris, N. P.; Lai, Kamson; Madgwick, Darren S.; Noeske, K. G.; Wirth, Gregory D.; Connolly, A. J.; Kaiser, N.; Kirby, Evan N.; Lemaux, Brian C.; Lin, Lihwai; Lotz, Jennifer M.; Luppino, G. A.; Marinoni, C.; Matthews, Daniel J.; Metevier, Anne; Schiavon, Ricardo P. (IOP Publishing, 2013)
      We describe the design and data analysis of the DEEP2 Galaxy Redshift Survey, the densest and largest high-precision redshift survey of galaxies at z ~ 1 completed to date. The survey was designed to conduct a comprehensive ...

    • The DEEP2 Galaxy Redshift Survey: First Results on Galaxy Groups 

      Gerke, Brian F.; Newman, Jeffrey A.; Davis, Marc; Marinoni, Christian; Yan, Renbin; Coil, Alison L.; Conroy, Charlie; Cooper, Michael C.; Faber, S. M.; Finkbeiner, Douglas; Guhathakurta, Puragra; Kaiser, Nick; Koo, David C.; Phillips, Andrew C.; Weiner, Benjamin J.; Willmer, Christopher N. A. (IOP Publishing, 2005)
      We use the first 25% of the DEEP2 Galaxy Redshift Survey spectroscopic data to identify groups and clusters of galaxies in redshift space. The data set contains 8370 galaxies with confirmed redshifts in the range 0.7 ≤ z ...

    • The DEEP2 Galaxy Redshift Survey: the relationship between galaxy properties and environment at z  1 

      Cooper, M. C.; Newman, J. A.; Croton, D. J.; Weiner, B. J.; Willmer, C. N. A.; Gerke, B. F.; Madgwick, D. S.; Faber, S. M.; Davis, M.; Coil, A. L.; Finkbeiner, Douglas; Guhathakurta, P.; Koo, D. C. (Oxford University Press (OUP), 2006)
      We study the mean environment of galaxies in the DEEP2 Galaxy Redshift Survey as a function of rest-frame colour, luminosity, and [O-ii] 3727-Å equivalent width. The local galaxy overdensity for >14-000 galaxies at 0.75 < ...

    • Detecting dark matter annihilation with CMB polarization: Signatures and experimental prospects 

      Padmanabhan, Nikhil; Finkbeiner, Douglas (American Physical Society (APS), 2005)
      Dark matter (DM) annihilation during hydrogen recombination (z ~ 1000) will alter the recombination history of the Universe, and affect the observed CMB temperature and polarization fluctuations. Unlike other astrophysical ...

    • Determining Foreground Contamination in Cosmic Microwave Background Observations: Diffuse Galactic Emission in the MAXIMA‐I Field 

      Jaffe, A. H.; Balbi, A.; Bond, J. R.; Borrill, J.; Ferreira, P. G.; Finkbeiner, Douglas; Hanany, S.; Lee, A. T.; Rabii, B.; Richards, P. L.; Smoot, G. F.; Stompor, R.; Winant, C. D.; Wu, J. H. P. (IOP Publishing, 2004)
      Observations of the CMB can be contaminated by diffuse foreground emission from sources such as Galactic dust and synchrotron radiation. In these cases, the morphology of the contaminating source is known from observations ...

    • Discovery of a Wide Binary Brown Dwarf Born in Isolation 

      Luhman, K. L.; Mamajek, E. E.; Allen, P. R.; Muench, August A.; Finkbeiner, Douglas (IOP Publishing, 2009)
      During a survey for stars with disks in the Taurus star-forming region using the Spitzer Space Telescope, we have discovered a pair of young brown dwarfs, FU Tau A and B, in the Barnard 215 dark cloud. They have a projected ...

    • Discovery of Giant Gamma-ray Bubbles in the Milky Way 

      Su, Meng (2012-08-09)
      Based on data from the Fermi Gamma-ray Space Telescope, we have discovered two gigantic gamma-ray emitting bubble structures in our Milky Way (known as the Fermi bubbles), extending \(\sim 50\) degrees above and below the ...