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Research on the Demand for International Reserves: Developments in Academia, the Contribution of IMF Researchers, and Influence on IMF Surveillance
, 2012
"... This paper reviews the academic literature on the demand for and adequacy of international reserves and assesses the contribution of research carried out by IMF staff to this literature. It also evaluates the impact of research on analytical approaches used by Fund staff to assess member countries ’ ..."
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’ reserve holdings in the context of IMF surveillance activities. The paper concludes that IMF economists were generally at the forefront of research during the 2000s, notably in empirical applications of theoretical models, in quantifying the effects of growing exposures to financial crises on reserve
Magnetic field and electric currents in the vicinity of polar cusps as inferred from Polar and Cluster data, Ann
- Geophys
, 2009
"... Abstract. A detailed statistical study of the magnetic struc-ture of the dayside polar cusps is presented, based on multi-year sets of magnetometer data of Polar and Cluster space-craft, taken in 1996–2006 and 2001–2007, respectively. Thanks to the dense data coverage in both Northern and Southern H ..."
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Cited by 3 (0 self)
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and the solar wind/IMF conditions. The selection funnels were shifted within ±10 ◦ of SM latitude around the model cusp location, and linear regression parameters were calcu-lated for each sliding subset, further divided into 10 bins of distance in the range 2≤R≤12RE, with the following re-sults. (1
The stellar initial mass function of early type galaxies from low to high stellar velocity dispersion: homogeneous analysis of ATLAS3Dand Sloan Lens ACS galaxies
, 2014
"... We present an investigation about the shape of the initial mass function (IMF) of early-type galaxies (ETGs), based on a joint lensing and dynamical analysis, and on stellar population synthesis models, for a sample of 55 lens ETGs identified by the Sloan Lens ACS (SLACS) Survey. We construct axisym ..."
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We present an investigation about the shape of the initial mass function (IMF) of early-type galaxies (ETGs), based on a joint lensing and dynamical analysis, and on stellar population synthesis models, for a sample of 55 lens ETGs identified by the Sloan Lens ACS (SLACS) Survey. We construct
Global MHD modeling of Mercury’s magnetosphere with applications to the MESSENGER mission and dynamo theory,
- Icarus,
, 2008
"... Abstract We use a global magnetohydrodynamic (MHD) model to simulate Mercury's space environment for several solar wind and interplanetary magnetic field (IMF) conditions in anticipation of the magnetic field measurements by the MESSENGER spacecraft. The main goal of our study is to assess wha ..."
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Cited by 3 (1 self)
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what characteristics of the internally generated field of Mercury can be inferred from the MESSENGER observations, and to what extent they will be able to constrain various models of Mercury's magnetic field generation. Based on the results of our simulations, we argue that it should be possible
accepted to the Astrophysical Journal The Initial Mass Function of Low-Mass Stars and Brown Dwarfs in Young Clusters 1,2
, 2000
"... We have obtained images of the Trapezium Cluster (140 ′ ′ × 140 ′ ′ ; 0.3 pc × 0.3 pc) with the Hubble Space Telescope Near-Infrared Camera and Multi-Object Spectrometer (NICMOS). Combining these data with new ground-based K-band spectra (R = 800) and existing spectral types and photometry, we have ..."
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have constructed an H-R diagram and used it and other arguments to infer masses and ages. To allow comparison with the results of our previous studies of IC 348 and ρ Oph, we first use the models of D’Antona & Mazzitelli. With these models, the distributions of ages of comparable samples of stars
Preprint typeset using LATEX style emulateapj v. 10/09/06 A YOUNG SUPER STAR CLUSTER IN THE NUCLEAR REGION OF NGC 253
, 902
"... We present observations of a massive star cluster near the nuclear region of the nearby starburst galaxy NGC 253. The peak of near-infrared emission, which is spatially separated by 4 ′ ′ from the kinematic center of the galaxy, is coincident with a super star cluster whose properties we examine wit ..."
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with low-resolution (R ∼ 1,200) infrared CTIO spectroscopy and optical/near-infrared HST imaging. Extinction, measured from [Fe II] lines, is estimated at AV = 17.7±2.6. The age of the cluster is estimated at 5.7 Myr, based on Brγ equivalent width for an instantaneous burst using Starburst99 modeling
WHO DECIDES? POLICY RIGHTS AND COALITION GOVERNMENT
, 2007
"... Who decides policy in a coalition government? The question is important to political scientists and presumably to voters. It plays a central role in a literature on government accountability and economic voting. Empirical analysis of policy-making, however, faces considerable challenges. This paper ..."
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. This paper circumvents those challenges and infers macro-economic policy using the actual record of the macro-economy in a specification based on Alesina’s rational partisan theory (Alesina, 1987). The testing strategy relies upon the variation we see in party control of different cabinet ministries under
Preprint typeset using L ATEX style emulateapj v. 08/22/09 DYNAMICAL MASSES OF EARLY-TYPE GALAXIES AT z ∼ 2: ARE THEY TRULY SUPERDENSE? 1
, 2009
"... We measured stellar velocity dispersions σ and derived dynamical masses of 9 massive (M ≈ 10 11 M⊙) early-type galaxies (ETG) from the GMASS sample at redshift 1.4 � z � 2.0. The σ are based on individual spectra for two galaxies at z ≈ 1.4 and on a stacked spectrum for 7 galaxies with 1.6 < z &l ..."
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< 2.0, with 202-h of exposure at the ESO Very Large Telescope. We constructed detailed axisymmetric dynamical models for the objects, based on the Jeans equations, taking the observed surface brightness (from deep HST/ACS observations), PSF and slit effects into account. Our dynamical masses MJeans
Preprint typeset using L ATEX style emulateapj v. 08/22/09 DYNAMICAL MASSES OF EARLY-TYPE GALAXIES AT z ∼ 2: ARE THEY TRULY SUPERDENSE? 1
, 906
"... We measured stellar velocity dispersions σ and dynamical masses of 9 massive (M ≈ 10 11 M⊙) earlytype galaxies (ETG) from the GMASS sample at redshift 1.4 � z � 2.0. The σ are based on individual spectra for two galaxies at z ≈ 1.4 and on a stacked spectrum for 7 galaxies with 1.6 < z < 2.0, w ..."
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.0, with 202-h of exposure at the ESO Very Large Telescope. We constructed detailed axisymmetric dynamical models for the objects, based on the Jeans equations, taking the observed surface brightness (from deep HST/ACS observations), PSF and slit effects into account. Our dynamical masses MJeans agree within
Star Formation Rates in Cooling Flow Clusters: A UV Pilot Study with Archival XMM-Newton Optical Monitor Data
, 2005
"... We have analyzed XMM-Newton Optical Monitor (OM) UV (180-400 nm) data for a sample of 33 galaxies. 30 are cluster member galaxies, and nine of these are central cluster galaxies (CCGs) in cooling flow clusters having mass deposition rates which span a range of 8 −525 M ⊙ yr −1. By comparing the rati ..."
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Cited by 1 (0 self)
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for the cooling flow sample. For 2/3 of this sample it is possible to equate Chandra/XMM cooling flow mass deposition rates with UV inferred star formation rates, for a combination of starburst lifetime and IMF slope. This is a pilot study of the well populated XMM UV cluster archive and a more extensive follow
Results 1 - 10
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12