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Browsing MIT Open Access Articles by Title

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  • In, So-Ra; Han, Sang-Ok; Im, Eun Soon (Springer Netherlands, 2013-07)
    This study investigates the capability of two numerical models, namely the Weather Research and Forecasting (WRF) and Cloud Resolving Storm Simulator (CReSS), to simulate the heavy rainfall that occurred on September 21, ...
  • Lecoanet, Daniel; Le Bars, Michael; Vasil, Geoffrey M.; Brown, Benjamin P.; Quataert, Eliot; Oishi, Jeffrey S.; Burns, Keaton James (American Physical Society, 2015-06)
    Water's density maximum at 4[superscript ∘]C makes it well suited to study internal gravity wave excitation by convection: an increasing temperature profile is unstable to convection below 4[superscript ∘]C, but stably ...
  • Cheaib, Farah K.; Lienhard, John H.; Chehayeb, Karim Malek (Begell House Inc., 2014-08)
    The humidification-dehumidification (HDH) desalination system can be advantageous in small-scale, off-grid applications. The main drawback of this technology has been its low energy efficiency, which results in high water ...
  • Chesler, Paul Michael; Yaffe, Laurence G. (Springer-Verlag, 2014-07)
    A variety of gravitational dynamics problems in asymptotically anti-de Sitter (AdS) spacetime are amenable to efficient numerical solution using a common approach involving a null slicing of spacetime based on infalling ...
  • Chesler, Paul M.; Yaffe, Laurence G. (Springer Berlin Heidelberg, 2014-07)
    A variety of gravitational dynamics problems in asymptotically anti-de Sitter (AdS) spacetime are amenable to efficient numerical solution using a common approach involving a null slicing of spacetime based on infalling ...
  • Jing, Yun; Xu, Jun; Fang, Xuanlai (Elsevier B.V., 2012-09)
    This Letter studies a two-dimensional, membrane-based acoustic metamaterial with a near-zero refractive index. It yields a frequency-dependent effective density that is near-zero at a narrow frequency band centered around ...
  • Nagaraj, Kanthi; Chinchali, Sandeep; Bharadia, Dinesh; Mao, Hongzi; Alizadeh Attar, Mohammadreza; Katti, Sachin Rajsekhar (Association for Computing Machinery, 2016-08)
    We present xFabric, a novel datacenter transport design that provides flexible and fast bandwidth allocation control. xFabric is flexible: it enables operators to specify how bandwidth is allocated amongst contending flows ...
  • Kelliher, Denis; Robinson, James C.; Campbell, John S.; Clune, Rory P. (Springer Berlin Heidelberg, 2014-01)
    Cardiovascular stents have been used since the 1990s to treat atherosclerosis, one of leading causes of death in the western world, and structural optimization has led to significant improvements in stent performance. Much ...
  • Parker, M. L.; Tomsick, J. A.; Miller, J. M.; Yamaoka, K.; Lohfink, Anne M.; Fabian, A. C.; Alston, W. N.; Boggs, S. E.; Christensen, F. E.; Craig, W. W.; Gandhi, P.; Grefenstette, B. W.; Hailey, C. J.; Harrison, F. A.; Kara, Erin; King, A. L.; Stern, D.; Walton, D. J.; Wilms, J.; Zhang, W. W.; Nowak, Michael A.; Grinberg, Victoria; Furst, F. (IOP Publishing, 2015-07)
    We present simultaneous Nuclear Spectroscopic Telescope Array (NuSTAR ) and Suzaku observations of the X-ray binary Cygnus X-1 in the hard state. This is the first time this state has been observed in Cyg X-1 with NuSTAR, ...
  • Parker, M. L.; Tomsick, J. A.; Kennea, J. A.; Miller, J. M.; Harrison, F. A.; Barret, D.; Boggs, S. E.; Christensen, F. E.; Craig, W. W.; Fabian, A. C.; Fürst, F.; Hailey, C. J.; Romano, P.; Stern, D.; Walton, D. J.; Zhang, W. W.; Grinberg, Victoria (IOP Publishing, 2016-04)
    We present results from spectral fitting of the very high state of GX 339-4 with Nuclear Spectroscopic Telescope Array (NuSTAR) and Swift. We use relativistic reflection modeling to measure the spin of the black hole and ...
  • Lotti, Simone; Natalucci, Lorenzo; Mori, Kaya; Boggs, Steven E.; Christensen, Finn E.; Hailey, Charles J.; Harrison, Fiona A.; Hong, Jaesub; Krivonos, Roman A.; Rahoui, Farid; Stern, Daniel; Tomsick, John A.; Zhang, William W.; Baganoff, Frederick K; Craig, William W; Zhang, Shuo (IOP Publishing, 2016-05)
  • Bachetti, Matteo; Miyasaka, Hiromasa; Harrison, Fiona A.; Furst, Felix; Barret, Didier; Bellm, Eric C.; Boggs, Steven E.; Chakrabarty, Deepto; Chenevez, Jerome; Christensen, Finn E.; Craig, William W.; Grefenstette, Brian W.; Hailey, Charles J.; Madsen, Kristin K.; Natalucci, Lorenzo; Pottschmidt, Katja; Stern, Daniel; Tomsick, John A.; Walton, Dominic J.; Wilms, Jörn; Zhang, William (EDP Sciences, 2014-01)
    The NuSTAR hard X-ray telescope observed the transient Be/X-ray binary GS 0834–430 during its 2012 outburst. The source is detected between 3 – 79 keV with high statistical significance, and we were able to perform very ...
  • Bhalerao, Varun; Romano, Patrizia; Tomsick, John; Natalucci, Lorenzo; Smith, David M.; Bellm, Eric; Boggs, Steven E.; Chakrabarty, Deepto; Christensen, Finn E.; Craig, William W.; Fuerst, Felix; Hailey, Charles J.; Harrison, Fiona A.; Krivonos, Roman A.; Lu, Ting-Ni; Madsen, Kristin K.; Stern, Daniel; Younes, George; Zhang, William (Oxford University Press, 2015-01)
    We present NuSTAR spectral and timing studies of the supergiant fast X-ray transient (SFXT) IGR J17544−2619. The spectrum is well described by an ~1 keV blackbody and a hard continuum component, as expected from an accreting ...
  • Miyasaka, Hiromasa; Bachetti, Matteo; Harrison, Fiona A.; Barret, Didier; Bellm, Eric C.; Boggs, Steven E.; Chakrabarty, Deepto; Chenevez, Jerome; Christensen, Finn E.; Craig, William W.; Grefenstette, Brian W.; Hailey, Charles J.; Madsen, Kristin K.; Natalucci, Lorenzo; Pottschmidt, Katja; Stern, Daniel; Tomsick, John A.; Walton, Dominic J.; Zhang, William; Furst, Felix; Wilms, Jorn (IOP Publishing, 2013-09)
    The Nuclear Spectroscopic Telescope Array hard X-ray telescope observed the transient Be/X-ray binary GS 0834–430 during its 2012 outburst—the first active state of this system observed in the past 19 yr. We performed ...
  • Mori, Kaya; Gotthelf, Eric V.; Zhang, Shuo; An, Hongjun; Baganoff, Frederick K.; Barriere, Nicolas M.; Beloborodov, Andrei M.; Boggs, Steven E.; Christensen, Finn E.; Craig, William W.; Dufour, Francois; Grefenstette, Brian W.; Hailey, Charles J.; Harrison, Fiona A.; Hong, Jaesub; Kaspi, Victoria; Kennea, Jamie A.; Madsen, Kristin K.; Markwardt, Craig B.; Nynka, Melania; Stern, Daniel; Tomsick, John A.; Zhang, William W. (IOP Publishing, 2013-05)
    We report the discovery of 3.76 s pulsations from a new burst source near Sgr A* observed by the NuSTAR observatory. The strong signal from SGR J1745–29 presents a complex pulse profile modulated with pulsed fraction 27% ...
  • Pottschmidt, Katja; Kennea, Jamie A.; Bachetti, Matteo; Bellm, Eric C.; Boggs, Steven E.; Chakrabarty, Deepto; Christensen, Finn E.; Craig, William W.; Hailey, Charles J.; Harrison, Fiona A.; Stern, Daniel; Tomsick, John A.; Walton, Dominic J.; Zhang, William; Furst, Felix; Wilms, Jorn (IOP Publishing, 2014-03)
    We present a spectral analysis of three simultaneous Nuclear Spectroscopy Telescope Array and Swift/XRT observations of the transient Be-neutron star binary KS 1947+300 taken during its outburst in 2013/2014. These broadband ...
  • Krivonos, Roman A.; Tsygankov, Sergey S.; Lutovinov, Alexander A.; Tomsick, John A.; Chakrabarty, Deepto; Bachetti, Matteo; Boggs, Steven E.; Chernyakova, Masha; Christensen, Finn E.; Craig, William W.; Fürst, Felix; Hailey, Charles J.; Harrison, Fiona A.; Lansbury, George B.; Rahoui, Farid; Stern, Daniel; Zhang, William W. (IOP Publishing, 2015-08)
    We present spectral and timing analyses of Nuclear Spectroscopic Telescope Array (NuSTAR) observations of the accreting X-ray pulsar 2RXP J130159.6–635806. The source was serendipitously observed during a campaign focused ...
  • Baganoff, Frederick K. (IOP Publishing, 2015-11)
    We present the first sub-arcminute images of the Galactic Center above 10 keV, obtained with NuSTAR. NuSTAR resolves the hard X-ray source IGR J17456–2901 into non-thermal X-ray filaments, molecular clouds, point sources, ...
  • Hong, JaeSub; Mori, Kaya; Hailey, Charles J.; Nynka, Melania; Zhang, Shuo; Gotthelf, Eric; Fornasini, Francesca M.; Krivonos, Roman; Bauer, Franz; Perez, Kerstin; Tomsick, John A.; Bodaghee, Arash; Chiu, Jeng-Lun; Clavel, Maica; Stern, Daniel; Grindlay, Jonathan E.; Alexander, David M.; Aramaki, Tsuguo; Barret, Didier; Barriere, Nicolas; Boggs, Steven E.; Canipe, Alicia M.; Christensen, Finn E.; Craig, William W.; Desai, Meera A.; Forster, Karl; Giommi, Paolo; Grefenstette, Brian W.; Harrison, Fiona A.; Hong, Dooran; Hornstrup, Allan; Kitaguchi, Takao; Koglin, Jason E.; Madsen, Kristen K.; Mao, Peter H.; Miyasaka, Hiromasa; Perri, Matteo; Pivovaroff, Michael J.; Puccetti, Simonetta; Rana, Vikram; Westergaard, Niels J.; Zhang, William W.; Zoglauer, Andreas; Baganoff, Frederick K (IOP Publishing, 2016-07)
    We present the first survey results of hard X-ray point sources in the Galactic Center (GC) region by NuSTAR. We have discovered 70 hard (3–79 keV) X-ray point sources in a 0.6 deg² region around Sgr A* with a total exposure ...
  • Krivonos, Roman A.; Tomsick, John A.; Bachetti, Matteo; Boggs, Steven E.; Chakrabarty, Deepto; Christensen, Finn E.; Craig, William W.; Hailey, Charles J.; Harrison, Fiona A.; Hong, Jaesub; Mori, Kaya; Stern, Daniel; Zhang, William W.; Barriere, Nicolas M. (IOP Publishing, 2015-01)
    We report on two NuSTAR observations of GRS 1741.9-2853, a faint neutron star (NS) low-mass X-ray binary burster located 10' away from the Galactic center. NuSTAR detected the source serendipitously as it was emerging from ...
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