Citations Only: Recent submissions

Now showing items 241-260 of 990

    • A large, uniform sample of X-ray emitting AGN: selection approach and an initial catalog from the ROSAT All-Sky and Sloan Digital Sky Surveys 

      Anderson, Scott; Voges, Wolfgang; Margon, Bruce; Trumper, Joachim; Agueros, Marcel; Boller, Thomas; Collinge, Matthew; Homer, Lee; Stinson, Gregory; Strauss, Michael; Annis, James; Gomez, Percy; Hall, Patrick; Nichol, Robert; Richards, Gordon; Schneider, Donald; Vanden Berk, Daniel; Fan, Xiaohui; Ivezic, Zeljko; Munn, Jeffrey; Newberg, Heidi Jo; Richmond, Michael; Weinberg, David; Yanny, Brian; Bahcall, Neta; Brinkmann, Jonathan; Fukugita, Masataka; York, Donald (American Astronomical Society - The Astronomical Journal, 2003-11)
      Many open questions in X-ray astronomy are limited by the relatively small number of objects in uniform optically-identified and observed samples, especially when rare subclasses are considered, or when subsets are ...

    • Ultracompact AM CVn Binaries from the Sloan Digital Sky Survey: three candidates plus the first confirmed Eclipsing System 

      Anderson, Scott; Haggard, Daryl; Homer, Lee; Joshi, Nikhil; Margon, Bruce; Silvestri, Nicole; Szkody, Paula; Wolfe, Michael; Agol, Eric; Becker, Andrew; Henden, Arne; Hall, Patrick; Knapp, Gillian; Richmond, Michael; Schneider, Donald; Stinson, Gregory; Barentine, John; Brewington, Howard; Brinkmann, Jonanthan; Harvanek, Michael; Kleinman, Scott; Krzesinski, Jurek; Long, Dan; Neilsen, Eric; Nitta, Atsuko; Snedden, Stephanie (American Astronomical Society - The Astronomical Journal, 2005-11)
      AM CVn systems are a rare (about a dozen previously known) class of cataclysmic variables, arguably encompassing the shortest orbital periods (down to about 10 minutes) of any known binaries. Both binary components are ...

    • The Sloan Digital Sky Survey Monitor Telescope Pipeline 

      Tucker, Douglas; Kent, Stephen; Richmond, Michael; Annis, James; Smith, James; Allam, S.; Rodgers, C.; Stute, J.; Adelman-McCarthy, Jennifer; Brinkman, Jonathan; Doi, Mamoru; Finkbeiner, Douglas; Fukugita, Masataka; Goldston, J.; Greenway, B.; Gunn, James; Hendry, John; Hogg, David; Ichikawa, Shin-ichi; Ivezic, Zeljko; Knapp, Gillian; Lampeitl, Hubert; Lee, Brian; Lin, Huan; McKay, Timothy; Merrelli, A.; Munn, Jeffrey; Neilsen, E.; Newberg, H.; Richards, Gordon; Schlegel, David; Stoughton, Christopher; Uomoto, Alan; Yanny, Brian (Wiley InterScience: Astronomische Nachrichten, 2006-11)
      The photometric calibration of the Sloan Digital Sky Survey (SDSS) is a multi-step process which involves data from three different telescopes: the 1.0-m telescope at the US Naval Observatory (USNO), Flagstaff Station, ...

    • A large, uniform sample of X-ray emitting AGN from the ROSAT All-Sky and Sloan Digital Sky Surveys: the Data Release 5 Sample 

      Anderson, Scott; Margon, Bruce; Voges, Wolfgang; Plotkin, Richard; Syphers, David; Haggard, Daryl; Collinge, Matthew; Meyer, Jillian; Strauss, Michael; Agueros, Marcel; Hall, Patrick; Homer, Lee; Richards, Gordon; Richmond, Michael; Schneider, Donald; Stinson, Gregory; Vanden Berk, Daniel; York, Donald (American Astronomical Society - The Astronomical Journal, 2003-11)
      We describe further results of a program aimed to yield ∼104 fully characterized optical identifications of ROSAT X-ray sources. Our program employs X-ray data from the ROSAT All-Sky Survey (RASS), and both optical imaging ...

    • Exploring the variable sky with the Sloan Digital Sky Survey 

      Sesar, Branimir; Ivezic, Zeljko; Lupton, Robert; Juric, Mario; Gunn, James; Knapp, Gillian; De Lee, Nathan; Smith, Allyn; Miknaitis, Gajus; Lin, Huan; Tucker, Douglas; Doi, Mamoru; Tanaka, Masayuki; Fukugita, Masataka; Holtzman, Jon; Kent, Steve; Yanny, Brian; Schlegel, David; Finkbeiner, Douglas; Padmanabhan, Nikhil; Rockosi, Constance; Bond, Nicholas; Lee, Brian; Stoughton, Chris; Jester, Sebastian; Harris, Hugh; Harding, Paul; Brinkmann, Jon; Schneider, Donald; York, Donald; Richmond, Michael; Vanden Berk, Daniel (American Astronomical Society - The Astronomical Journal, 2007-12)
      We quantify the variability of faint unresolved optical sources using a catalog based on multiple SDSS imaging observations. The catalog covers SDSS Stripe 82, which lies along the celestial equator in the Southern ...

    • The Sloan Digital Sky Survey-II Supernova Survey: technical summary 

      Frieman, Joshua; Bassett, Bruce; Becker, Andrew; Choi, Changsu; Cinabro, David; DeJongh, Fritz; Depoy, Darren; Dilday, Ben; Doi, Mamoru; Garnavich, Peter; Hogan, Craig; Holtzman, Jon; Im, Myungshin; Jha, Saurabh; Kessler, Richard; Konishi, Kohki; Lampeitl, Hubert; Marriner, John; Marshall, Jennifer; McGinnis, David; Miknaitis, Gajus; Nichol, Robert; Prieto, Jose Luis; Riess, Adam; Richmond, Michael; Romani, Roger; Sako, Masao; Schneider, Donald; Smith, Mathew; Takanashi, Naohiro; Tokita, Kouichi; van der Heyden, Kurt; Yasuda, Naoki; Zheng, Chen; Adelman-McCarthy, Jennifer; Annis, James; Assef, Roberto; Barentine, John; Bender, Ralf; Blandford, Roger; Boroski, William; Bremer, Malcolm; Brewington, Howard; Collins, Chris; Crotts, Arlin; Dembicky, Jack; Eastman, Jason; Edmondson, Edmond; Elson, Edward; Eyler, Michael; Filippenko, Alexei; Foley, Ryan; Frank, Stephan; Goobar, Ariel; Gueth, Tina; Gunn, James; Harvanek, Michael; Hopp, Ulrich; Ihara, Yutaka; Ivezic, Zelko; Kahn, Steven; Kaplan, Jared; Kent, Stephen; Ketzeback, William; Kleinman, Scott; Kollatschny, Wolfram; Kron, Richard; Krzesinkski, Jurek; Lamenti, Dennis; Giorgos, Leloudas; Lin, Huan; Long, Daniel; Lucey, John; Lupton, Robert; Malanushenko, Elena; Malanushenko, Viktor; McMillan, Russet; Mendez, Javier; Morgan, Christopher; Morokuma, Tomoki; Nitta, Atsuko; Ostman, Linda; Pan, Kaike; Rockosi, Constance; Romer, Kathy; Ruiz-Lapuente, Pilar; Saurage, Gabrelle; Schelsinger, Katie; Snedden, Stephanie; Sollerman, Jesper; Stoughton, Chris; Stritzinger, Maximilian; SubbaRao, Mark; Tucker, Douglas; Vaisanen, Petri; Watson, Linda; Watters, Shannon; Wheeler, Craig; Yanny, Brian; York, Donald (American Astronomical Society - The Astronomical Journal, 2008-01)
      The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) ...

    • The Sloan Digital Sky Survey-II Supernova Survey: search Algorithm and follow-up observations 

      Sako, Masao; Bassett, Bruce; Becker, Andrew; Cinabro, David; DeJongh, Fritz; Depoy, Darren; Dilday, Ben; Doi, Mamoru; Frieman, Joshua; Garnavich, Peter; Hogan, Craig; Holtzman, Jon; Jha, Saurabh; Kessler, Richard; Konishi, Kohki; Lampeitl, Hubert; Marriner, John; Miknaitis, Gajus; Nichol, Robert; Prieto, Jose Luis; Riess, Adam; Richmond, Michael; Romani, Roger; Schneider, Donald; Smith, Matthew; SubbaRao, Mark; Takanashi, Naohiro; Tokita, Kouichi; van der Heyden, Kurt; Yasuda, Naoki; Zheng, Chen; Barentine, John; Brewington, Howard; Choi, Changsu; Dembicky, Jack; Harnavek, Michael; Ihara, Yutaka; Im, Myungshin; Ketzeback, William; Kleinman, Scott; Krzesinski, Jurek; Long, Daniel; Malanushenko, Elena; Malanushenko, Viktor; McMillan, Russet; Morokuma, Tomoki; Nitta, Atsuko; Pan, Kaike; Saurage, Gabrelle; Snedden, Stephani (American Astronomical Society - The Astronomical Journal, 2008-01)
      The Sloan Digital Sky Survey-II Supernova Survey has identified a large number of new transient sources in a 300 deg2 region along the celestial equator during its first two seasons of a three-season campaign. Multi-band ...

    • Two more candidate AM Canum Venaticorum (AM CVn) Binaries from the Sloan Digital Sky Survey 

      Anderson, Scott; Becker, Andrew; Haggard, Daryl; Prieto, Jose Luis; Knapp, Gillian; Sako, Masao; Halford, Kelly; Jha, Saurabh; Martin, Blake; Holtzman, Jon; Frieman, Joshua; Garnavich, Peter; Hayward, Suzanne; Ivezic, Zeljko; Mukadam, Anjum; Sesar, Branimir; Szkody, Paula; Malanushenko, Viktor; Richmond, Michael; Schneider, Donald; York, Donald (American Astronomical Society - The Astronomical Journal, 2008-06)
      AM CVn systems are a select group of ultracompact binaries with the shortest orbital periods of any known binary subclass; mass-transfer is likely from a low-mass (partially-)degenerate secondary onto a white dwarf ...

    • First-Year spectroscopy for the SDSS-II Supernova Survey 

      Zheng, Chen; Romani, Roger; Sako, Masao; Marriner, John; Bassett, Bruce; Becker, Andrew; Choi, Changsu; Cinabro, David; DeJongh, Fritz; Depoy, Darren; Dilday, Ben; Doi, Mamoru; Frieman, Joshua; Garnavich, Peter; Hogan, Craig; Holtzman, Jon; Im, Myungshin; Jha, Saurabh; Kessler, Richard; Konishi, Kohki; Lampeitl, Hubert; Marshall, Jennifer; McGinnis, David; Miknaitis, Gajus; Nichol, Robert; Preito, Jose; Riess, Adam; Richmond, Michael; Schneider, Donald; Smith, Matthew; Takanashi, Naohiro; Tokita, Kouichi; van der Heyden, Kurt; Yasuda, Naoki; Assef, Roberto; Barentine, John; Bender, Ralf; Blandford, Roger; Bremer, Malcolm; Brewington, Howard; Collins, Chris; Crotts, Arlin; Dembicky, Jack; Eastman, Jason; Edge, Alastair; Elson, Ed; Eyler, Michael; Filippenko, Alexei; Foley, Ryan; Frank, Stephan; Goobar, Ariel; Harvanek, Michael; Hopp, Ulrich; Ihara, Yutaka; Kahn, Steven; Ketzeback, William; Kleinman, Scott; Kollatschny, Wolfram; Krzesinski, Jurek; Leloudas, Giorgos; Long, Daniel; Lucey, John; Malanushenko, Elena; Malanushenko, Viktor; McMillan, Russet; Morgan, Christopher; Morokuma, Tomoki; Nitta, Atsuko; Ostman, Linda; Pan, Kaike; Romer, Kathy; Saurage, Gabrelle; Schlesinger, Katie; Snedden, Stephanie; Sollerman, Jesper; Stritzinger, Maximilian; Watson, Linda; Watters, Shannon; Wheeler, Craig; York, Donald (American Astronomical Society - The Astronomical Journal, 2008-05)
      This paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band light curves of supernovae in the ...

    • Empirical models for Dark Matter Halos. I. Nonparametric Construction of Density Profiles and comparison with Parametric Models 

      Merritt, David; Graham, Alister; Moore, Ben; Diemand, Jurg; Terzic, Balsa (American Astronomical Society - The Astronomical Journal, 2006-12)
      We use techniques from nonparametric function estimation theory to extract the density pro- files, and their derivatives, from a set of N-body dark matter halos. We consider halos generated from ΛCDM simulations of ...

    • Transient response of heat exchangers 

      Bunce, D.; Kandlikar, Satish (American Society of Mechanical Engineers (ASME), 1995-12)
      This paper presents a review of literature on the transient response of single-pass parallel, counter and cross-flow heat exchangers. The discussion will be focused on direct transfer type heat exchangers with a step change ...

    • Bubble nucleation and growth characteristics in subcooled flow boiling of water 

      Kandlikar, Satish; Mizo, Viktor; Cartwright, Michael; Ikenze, Emeka (American Society of Mechanical Engineers (ASME), 1997)
      Experimental results are presented for the onset of nucleation, bubble growth, and heat transfer in subcooled flow boiling of water near atmospheric pressure. The theoretical analysis for nucleation criterion is extended ...

    • Effect of surface finish on flow boiling heat transfer 

      Kandlikar, Satish; Spiesman, Paul (American Society of Mechanical Engineers (ASME), 1998-11)
      It is well known that the surface structure affects the pool boiling heat transfer from a heater surface. The number and size distribution of cavities present on a heater surface affect the nucleation characteristics. ...

    • A Theoretical model to predict pool boiling CHF incorporating effects of contact angle and orientation 

      Kandlikar, Satish (American Society of Mechanical Engineers (ASME), 2000)
      A theoretical model is developed to describe the hydrodynamic behavior of the vaporliquid interface of a bubble at the heater surface leading to the initiation of critical heat flux (CHF) condition. The momentum flux ...

    • Algorithmic regularization with velocity-dependent forces 

      Merritt, David; Mikkola, Seppo (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2006-05)
      Algorithmic regularization uses a transformation of the equations of motion such that the leapfrog algorithm produces exact trajectories for two-body motion as well as regular results in numerical integration of the ...

    • A Photographic insight into the motion of liquid-vapor interface during rapid evaporation of a liquid droplet on a heated surface 

      Kandlikar, Satish (American Society of Mechanical Engineers (ASME), 2001-11)
      Photographic observations of the boiling phenomena have played an important role in gaining insight into the boiling mechanism. This paper presents a brief historical review of the available literature on the photographic ...

    • Two-phase flow patterns, pressure drop and heat transfer during boiling in minichannel and microchannel flow passages of compact evaporators 

      Kandlikar, Satish (Taylor & Francis, 2001-12)
      The small hydraulic diameters employed during flow boiling in compact evaporator passages are becoming more important as they are employed in diverse applications including electronics cooling and fuel cell evaporators. ...

    • Molecular dynamics simulation and measurement of contact angle of water droplet on a platinum surface 

      Kandlikar, Satish; Maruyama, Shigeo; Steinke, Mark; Kimura, Tatsuto (American Society of Mechanical Engineers (ASME), 2001-11)
      A water liquid droplet in contact with a platinum surface was simulated by the molecular dynamics method. Water molecules were modeled by SPC/E and one layer of harmonic molecules represented the platinum surface with ...

    • High-speed photographic observation of flow boiling of water in parallel mini-channels 

      Kandlikar, Satish; Steinke, Mark; Tian, Shurong; Campbell, Levi (American Society of Mechanical Engineers (ASME), 2001-06)
      The use of smaller passage dimensions is becoming more prevalent in flow boiling applications. Passages with hydraulic diameters on the order of 1mm provide higher heat transfer coefficients resulting in more compact ...

    • Flow boiling heat transfer with binary and ternary mixtures in microfin tubes 

      Inoue, Nirihiro; Goto, asso; Kandlikar, Satish (American Society of Mechanical Engineers (ASME), 2000)
      An experimental setup was designed and fabricated to test the flow boiling heat transfer performance of microfin tubes. Five microfin tubes were tested with pure refrigerants. Two tubes were selected for further testing ...