Howes, Gregory G., Quataert, Eliot
Measurements of small-scale turbulent fluctuations in the solar wind find a non-zero right-handed magnetic helicity. This has been interpreted as evidence for ion cyclotron damping. However,...
When Should We Treat Galaxies as Isolated? (2009)
Hopkins, Philip F., Keres, Dusan, Ma, Chung-Pei, Quataert, Eliot
Traditionally, secular evolution is defined as evolution of systems where the internal growth of structure and instabilities dominates the growth via external drivers (e.g. accretion/mergers). Most...
Self-Regulated Black Hole Growth via Momentum Deposition in Galaxy Merger Simulations (2009)
DeBuhr, Jackson, Quataert, Eliot, Ma, Chung-Pei, Hopkins, Philip
We perform hydrodynamical simulations of major galaxy mergers using new methods for calculating the growth of massive black holes (BH) in galactic nuclei and their impact on the surrounding galaxy....
The Heating of Test Particles in Numerical Simulations of Alfvenic Turbulence (2009)
Lehe, Remi, Parrish, Ian J., Quataert, Eliot
We study the heating of charged test particles in three-dimensional numerical simulations of weakly compressible magnetohydrodynamic (MHD) turbulence (``Alfvenic turbulence''); these results are...
A Maximum Stellar Surface Density in Dense Stellar Systems (2009)
Hopkins, Philip F., Murray, Norman, Quataert, Eliot, Thompson, Todd A.
We compile observations of the surface mass density profiles of dense stellar systems, including globular clusters in the Milky Way and nearby galaxies, massive star clusters in nearby starbursts,...
The SINS Survey: Broad Emission Lines in High-Redshift Star-Forming Galaxies (2009)
Shapiro, Kristen L., Genzel, Reinhard, Quataert, Eliot, Förster Schreiber, Natascha M., Davies, Richard, Tacconi, Linda, ...
High signal-to-noise, representative spectra of star-forming galaxies at z ~ 2, obtained via stacking, reveal a high-velocity component underneath the narrow Hα and [NII] emission lines. When...
Chandran, Benjamin D. G., Quataert, Eliot, Howes, Gregory G., Xia, Qian, Pongkitiwanichakul, Peera
One proposed mechanism for heating the solar wind, from close to the sun to beyond 10 AU, invokes low-frequency, oblique, Alfven-wave turbulence. Because small-scale oblique Alfven waves (kinetic...
The Physics of the FIR-Radio Correlation: I. Calorimetry, Conspiracy, and Implications (2009)
Lacki, Brian C., Thompson, Todd A., Quataert, Eliot
(Abridged) The far-infrared (FIR) and radio luminosities of star-forming galaxies are linearly correlated over a very wide range in star formation rate, from normal spirals like the Milky Way to the...
Murray, Norman, Quataert, Eliot, Thompson, Todd A.
Star formation is slow, in the sense that the gas consumption time is much longer than the dynamical time. It is also inefficient; essentially all star formation in local galaxies takes place in...
Anisotropic Thermal Conduction and the Cooling Flow Problem in Galaxy Clusters (2009)
Parrish, Ian J., Quataert, Eliot, Sharma, Prateek
We examine the long-standing cooling flow problem in galaxy clusters with 3D MHD simulations of isolated clusters including radiative cooling and anisotropic thermal conduction along magnetic field...
Optical Flares from the Tidal Disruption of Stars by Massive Black Holes (2009)
Strubbe, Linda E., Quataert, Eliot
A star that wanders too close to a massive black hole (BH) is shredded by the BH's tidal gravity. Stellar gas falls back to the BH, releasing a flare of energy. In anticipation of upcoming transient...
The Turbulent Heating Rate in Strong MHD Turbulence with Nonzero Cross Helicity (2009)
Chandran, Benjamin D. G., Quataert, Eliot, Howes, Gregory G., Hollweg, Joseph V., Dorland, William
Different results for the cascade power in strong, incompressible MHD turbulence with nonzero cross helicity appear in the literature. In this paper, we discuss the conditions under which these...
Compact High-Redshift Galaxies Are the Cores of the Most Massive Present-Day Spheroids (2009)
Hopkins, Philip F., Bundy, Kevin, Murray, Norman, Quataert, Eliot, Lauer, Tod, Ma, Chung-Pei
Observations suggest that effective radii of high-z massive spheroids are as much as a factor ~6 smaller than low-z galaxies of comparable mass. Given the apparent absence of low-z counterparts, this...
The SINS Survey: Broad H-alpha Emission in High-Redshift Star-Forming Galaxies (2009)
Shapiro, Kristen L., Genzel, Reinhard, Quataert, Eliot, Schreiber, Natascha M. Förster, Davies, Richard, Tacconi, Linda, ...
High signal-to-noise, representative spectra of star-forming galaxies at z~2, obtained via stacking of the galaxies observed in the context of the SINS survey, reveal broad (FWHM > 1500 km/s) H-alpha...
When Is Secular Evolution Important? (2009)
Hopkins, Philip F., Keres, Dusan, Ma, Chung-Pei, Quataert, Eliot
This abstract has been withdrawn.
Thompson, Todd A., Quataert, Eliot, Murray, Norman
Using observations from the literature, we show that the non-thermal radio luminosity (L) of supernova remnants (SNRs) is a strong function of the average gas surface density (Sigma) of the galaxy in...
Are Most Low-Luminosity AGN Really Obscured? (2009)
Hopkins, Philip F., Hickox, Ryan, Quataert, Eliot, Hernquist, Lars
At low Eddington ratio (mdot), two effects make it harder to detect AGN given some selection criteria. First, they may transition to a radiatively inefficient state, changing SED shape and...
The SINS survey: broad emission lines in high-redshift star-forming galaxies (2009)
Shapiro, Kristen L., Genzel, Reinhard, Quataert, Eliot, Förster Schreiber, Natascha M., Davies, Richard, Tacconi, Linda, ...
Astrometry with the Keck-Interferometer: the ASTRA project and its science (2008)
Pott, Jorg-Uwe, Woillez, Julien, Akeson, Rachel L., Berkey, Ben, Colavita, Mark M., Cooper, Andrew, ...
The sensitivity and astrometry upgrade ASTRA of the Keck Interferometer is introduced. After a brief overview of the underlying interferometric principles, the technology and concepts of the upgrade...
Spherical Accretion with Anisotropic Thermal Conduction (2008)
Sharma, Prateek, Quataert, Eliot, Stone, James M.
We study the effects of anisotropic thermal conduction on magnetized spherical accretion flows using global axisymmetric MHD simulations. In low collisionality plasmas, the Bondi spherical accretion...
Extragalactic Zeeman Detections in OH Megamasers (2008)
Robishaw, Timothy, Quataert, Eliot, Heiles, Carl
We have measured the Zeeman splitting of OH megamaser emission at 1667 MHz from five (ultra)luminous infrared galaxies ([U]LIRGs) using the 305 m Arecibo telescope and the 100 m Green Bank Telescope....
Nonlinear Saturation of g-modes in Proto-Neutron Stars: Quieting the Acoustic Engine (2008)
Weinberg, Nevin N., Quataert, Eliot
According to Burrows et al.'s acoustic mechanism for core-collapse supernova explosions, the primary, l=1, g-mode in the core of the proto-neutron star is excited to an energy of ~ 10^{50} ergs and...
Parrish, Ian J., Quataert, Eliot
In low collisionality plasmas heat flows almost exclusively along magnetic field lines, and the condition for stability to convection is modified from the standard Schwarzschild criterion. We present...
On the Conditions for Neutron-Rich Gamma-Ray Burst Outflows (2007)
Metzger, Brian D., Thompson, Todd A., Quataert, Eliot
We calculate the structure and neutron content of neutrino-heated MHD winds driven from the surface of newly-formed magnetars (``proto-magnetars'') and from the midplane of hyper-accreting disks, two...
Dynamical Friction and Galaxy Merging Timescales (2007)
Boylan-Kolchin, Michael, Ma, Chung-Pei, Quataert, Eliot
The timescale for galaxies within merging dark matter halos to merge with each other is an important ingredient in galaxy formation models. Accurate estimates of merging timescales are required for...
Howes, Gregory G., Cowley, Steven C., Dorland, William, Hammett, Gregory W., Quataert, Eliot, Schekochihin, Alexander A.
This paper studies the turbulent cascade of magnetic energy in weakly collisional magnetized plasmas. A cascade model is presented, based on the assumptions of local nonlinear energy transfer in...
Dissipation-Scale Turbulence in the Solar Wind (2007)
Howes, Gregory G., Cowley, Steven C., Dorland, William, Hammett, Gregory W., Quataert, Eliot, Schekochihin, Alexander A.
We present a cascade model for turbulence in weakly collisional plasmas that follows the nonlinear cascade of energy from the large scales of driving in the MHD regime to the small scales of the...
Faraday Rotation in Global Accretion Disk Simulations: Implications for Sgr A* (2007)
Sharma, Prateek, Quataert, Eliot, Stone, James M.
These Faraday rotation calculations of hot, thick accretion flows are motivated by the measured steady rotation measure (RM) of $\approx -6 \times 10^5$ rad m$^{-2}$ from Sgr A*. In our numerical...
Electron Heating in Hot Accretion Flows (2007)
Sharma, Prateek, Quataert, Eliot, Hammett, Gregory W., Stone, James M.
Local (shearing box) simulations of the nonlinear evolution of the magnetorotational instability in a collisionless plasma show that angular momentum transport by pressure anisotropy ($p_\perp \ne...
The Ionization State of Sodium in Galactic Winds (2006)
Murray, Norman, Martin, Crystal L., Quataert, Eliot, Thompson, Todd A.
Roughly 80% of Ultraluminous Infrared Galaxies (ULIRGs) show blue shifted absorption in the resonance lines of neutral sodium, indicating that cool winds are common in such objects, as shown by Rupke...
Assessing The Starburst Contribution to the Gamma-Ray and Neutrino Backgrounds (2006)
Thompson, Todd A., Quataert, Eliot, Waxman, Eli, Loeb, Abraham
If cosmic ray protons interact with gas at roughly the mean density of the interstellar medium in starburst galaxies, then pion decay in starbursts is likely to contribute significantly to the...
Proto-Neutron Star Winds with Magnetic Fields and Rotation (2006)
Metzger, Brian D., Thompson, Todd A., Quataert, Eliot
We solve the 1D neutrino-heated non-relativistic MHD wind problem for conditions that range from slowly rotating (spin period P > 10 ms) protoneutron stars (PNSs) with surface field strengths typical...
The Effects of Thermal Conduction on Radiatively-Inefficient Accretion Flows (2006)
Johnson, Bryan M., Quataert, Eliot
We quantify the effects of electron thermal conduction on the properties of hot accretion flows, under the assumption of spherical symmetry. Electron heat conduction is important for low accretion...
Luminosity Dependence in the Fundamental Plane Projections of Elliptical Galaxies (2006)
Desroches, Louis-Benoit, Quataert, Eliot, Ma, Chung-Pei, West, Andrew A.
We analyze the fundamental plane projections of elliptical galaxies as a function of luminosity, using a sample of approximately 80,000 galaxies drawn from Data Release 4 (DR4) of the Sloan Digital...
The Starburst Contribution to the Extra-Galactic Gamma-Ray Background (2006)
Thompson, Todd A., Quataert, Eliot, Waxman, Eli
Cosmic ray protons interacting with gas at the mean density of the interstellar medium in starburst galaxies lose energy rapidly via inelastic collisions with ambient nuclei. The resulting pions...
Magnetic Fields in Starburst Galaxies and The Origin of the FIR-Radio Correlation (2006)
Thompson, Todd A., Quataert, Eliot, Waxman, Eli, Murray, Norman, Martin, Crystal L.
We estimate minimum energy magnetic fields (B_min) for a sample of galaxies with measured gas surface densities, spanning from normal spirals to starbursts. We show that the ratio of the minimum...
Boylan-Kolchin, Michael, Ma, Chung-Pei, Quataert, Eliot
Several recent observations suggest that gas-poor (dissipationless) mergers of elliptical galaxies contribute significantly to the build-up of the massive end of the red sequence. We perform a series...
Astrophysical Gyrokinetics: Basic Equations and Linear Theory (2005)
Howes, Gregory G., Cowley, Steven C., Dorland, William, Hammett, Gregory W., Quataert, Eliot, Schekochihin, Alexander A.
Magnetohydrodynamic (MHD) turbulence is encountered in a wide variety of astrophysical plasmas, including accretion disks, the solar wind, and the interstellar and intracluster medium. On small...
Thermal X-Ray Iron Line Emission from the Galactic Center Black Hole Sagittarius A* (2005)
Xu, Ya-Di, Narayan, Ramesh, Quataert, Eliot, Yuan, Feng, Baganoff, Frederick K.
We model thermal X-ray emission from the accreting supermassive black hole Sagittarius A* at the Galactic Center. For the region inside $1.^{\prime\prime}5$ of the center, we use a {generalized}...
Nonthermal THz to TeV Emission from Stellar Wind Shocks in the Galactic Center (2005)
Quataert, Eliot, Loeb, Abraham
The central parsec of the Galaxy contains dozens of massive stars with a cumulative mass loss rate of ~ 10^{-3} solar masses per year. Shocks among these stellar winds produce the hot plasma that...
Shearing Box Simulations of the MRI in a Collisionless Plasma (2005)
Sharma, Prateek, Hammett, Gregory W., Quataert, Eliot, Stone, James M.
We describe local shearing box simulations of turbulence driven by the magnetorotational instability (MRI) in a collisionless plasma. Collisionless effects may be important in radiatively inefficient...
Radiation Pressure Supported Starburst Disks and AGN Fueling (2005)
Thompson, Todd A., Quataert, Eliot, Murray, Norm
We consider the structure of marginally Toomre-stable starburst disks under the assumption that radiation pressure on dust grains provides the dominant vertical support against gravity. This is...
Dissipationless Mergers of Elliptical Galaxies and the Evolution of the Fundamental Plane (2005)
Boylan-Kolchin, Michael, Ma, Chung-Pei, Quataert, Eliot
We carry out numerical simulations of dissipationless major mergers of elliptical galaxies using initial galaxy models that consist of a dark matter halo and a stellar bulge with properties...
Goldston, Joshua E., Quataert, Eliot, Igumenshchev, Igor V.
We calculate synchrotron radiation in three-dimensional pseudo-Newtonian magnetohydrodynamic simulations of radiatively inefficient accretion flows. We show that the emission is highly variable at...
The distribution and cosmic evolution of massive black hole spins (2004)
Volonteri, Marta, Madau, Piero, Quataert, Eliot, Rees, Martin
We study the expected distribution of massive black hole (MBH) spins and its evolution with cosmic time in the context of hierarchical galaxy formation theories. Our model uses Monte Carlo...
Core Formation in Galactic Nuclei Due to Recoiling Black Holes (2004)
Boylan-Kolchin, Michael, Ma, Chung-Pei, Quataert, Eliot
Anisotropic gravitational radiation from a coalescing black hole binary can impart a recoil velocity of up to several hundred km/s to the remnant black hole. We examine the effects of recoiling...
Murray, Norman, Quataert, Eliot, Thompson, Todd A.
We investigate large-scale galactic winds driven by momentum deposition. Momentum injection is provided by (1) radiation pressure produced by the continuum absorption and scattering of UV photons on...
The effect of gravitational-wave recoil on the demography of massive black holes (2004)
The coalescence of massive black hole (MBH) binaries following galaxy mergers is one of the main sources of low-frequency gravitational radiation. A higher-order relativistic phenomenon, the recoil...
Viscosity and Rotation in Core-Collapse Supernovae (2004)
Thompson, Todd A., Quataert, Eliot, Burrows, Adam
We construct models of core-collapse supernovae in one spatial dimension, including rotation, angular momentum transport, and viscous dissipation employing an alpha-prescription. We compare the...
The Formation and Evolution of the First Massive Black Holes (2004)
Haiman, Zoltan, Quataert, Eliot
The first massive astrophysical black holes likely formed at high redshifts (z>10) at the centers of low mass (~10^6 Msun) dark matter concentrations. These black holes grow by mergers and gas...
Haiman, Zoltan, Quataert, Eliot, Bower, Geoffrey C.
We use a physically motivated semi-analytic model, based on the mass function of dark matter halos, to predict the number of radio-loud quasars as a function of redshift and luminosity. Simple models...
Magnetar Spindown, Hyper-Energetic Supernovae, and Gamma Ray Bursts (2004)
Thompson, Todd A., Chang, Philip, Quataert, Eliot
The Kelvin-Helmholtz cooling epoch, lasting tens of seconds after the birth of a neutron star in a successful core-collapse supernova, is accompanied by a neutrino-driven wind. For magnetar-strength...
On The Nature of the Variable Infrared Emission from Sgr A* (2004)
Yuan, Feng, Quataert, Eliot, Narayan, Ramesh
Recent infrared (IR) observations of the center of our Galaxy indicate that the supermassive black hole source Sgr A* is strongly variable in the IR. The timescale for the variability, $\sim 30$ min,...
Norman Murray, Eliot Quataert, Todd A. Thompson
We investigate large-scale galactic winds driven by momentum deposition. Momentum injection is provided by (1) radiation pressure produced by the continuum absorption and scattering of photons on...
A Dynamical Model for Hot Gas in the Galactic Center (2003)
Winds from massive stars supply ~ 10^{-3} solar masss/year of gas to the central parsec of the Galactic Center. Spherically symmetric hydrodynamic calculations show that ~ 1 % of this gas, or ~...
On the Viability of Two-temperature Accretion Flows (2003)
Binney (2003) has argued that two-temperature radiatively inefficient accretion flow models are unphysical because the electron-ion equipartition time is much shorter than the accretion time. I show...
Transition from collisionless to collisional MRI (2003)
Sharma, Prateek, Hammett, Gregory W., Quataert, Eliot
Recent calculations by Quataert et al. (2002) found that the growth rates of the magnetorotational instability (MRI) in a collisionless plasma can differ significantly from those calculated using...
Nonthermal Electrons in Radiatively Inefficient Accretion Flow Models of Sagittarius A* (2003)
Yuan, Feng, Quataert, Eliot, Narayan, Ramesh
We investigate radiatively inefficient accretion flow models for Sgr A*, the supermassive black hole in our Galactic Center, in light of new observational constraints. Confirmation of linear...
Radiatively Inefficient Accretion Flow Models of Sgr A* (2003)
I review radiatively inefficient accretion flow models for the 2.6 million solar mass black hole (BH) in the Galactic Center. I argue for a 'concordance model' of Sgr A*: both theory and observations...
The Magnetorotational Instability in a Collisionless Plasma (2002)
Quataert, Eliot, Dorland, William, Hammett, Greg
We consider the linear axisymmetric stability of a differentially rotating collisionless plasma in the presence of a weak magnetic field; we restrict our analysis to wavelengths much larger than the...
The Magnetohydrodynamics of Convection-Dominated Accretion Flows (2002)
Narayan, Ramesh, Quataert, Eliot, Igumenshchev, Igor V., Abramowicz, Marek A.
Radiatively inefficient accretion flows onto black holes are unstable due to both an outwardly decreasing entropy (`convection') and an outwardly decreasing rotation rate (the `magnetorotational...
A Thermal Bremsstrahlung Model For the Quiescent X-ray Emission from Sagittarius A* (2002)
I consider the thermal bremsstrahlung emission from hot accretion flows (Bondi/ADAFs), taking into account the finite size of the observing telescope's beam (R_beam) relative to the Bondi accretion...
On the Radial Structure of Radiatively Inefficient Accretion Flows with Convection (2001)
Abramowicz, Marek A., Igumenshchev, Igor V., Quataert, Eliot, Narayan, Ramesh
We consider the radial structure of radiatively inefficient hydrodynamic accretion flows around black holes. We show that low-viscosity flows consist of two zones: an outer convection-dominated zone...
Activity From Tidal Disruptions in Galactic Nuclei (2001)
Menou, Kristen, Quataert, Eliot
The tidal disruption of a star by a supermassive black hole is expected to lead to a short bright flare followed by an extended period of low-level emission. Existing models of the late-time...
Menou, Kristen, Quataert, Eliot
We consider the combined role of the thermal ionization, magneto-rotational and gravitational instabilities in thin accretion disks around supermassive black holes. We find that in the portions of...
Spectral Models of Convection-Dominated Accretion Flows (2000)
Ball, Gregory, Narayan, Ramesh, Quataert, Eliot
For small values of the dimensionless viscosity parameter, namely $\alpha\lesssim 0.1$, the dynamics of non-radiating accretion flows is dominated by convection; convection strongly suppresses the...
Constraining the Accretion Rate Onto Sagittarius A* Using Linear Polarization (2000)
Quataert, Eliot, Gruzinov, Andrei
Two possible explanations for the low luminosity of the supermassive black hole at the center of our galaxy are (1) an accretion rate of order the canonical Bondi value (roughly 10^{-5} solar masses...
Angular Momentum Transport in Particle and Fluid Disks (2000)
Quataert, Eliot, Chiang, Eugene I.
We examine the angular momentum transport properties of disks composed of macroscopic particles whose velocity dispersions are externally enhanced (``stirred''). Our simple Boltzmann equation model...
Lyman Alpha Cooling Radiation from High-Redshift Halos (2000)
Haiman, Zoltan, Spaans, Marco, Quataert, Eliot
The baryons inside high-redshift halos with virial temperatures above T=10^4 K cool radiatively as they condense inside dark matter potential wells. We show that the release of the gravitational...
Chandra, GLAST, and the Galactic Center (2000)
Quataert, Eliot, Gruzinov, Andrei
Two-temperature spherical accretion flows produce $\approx 100$ Mev gamma-rays from the decay of neutral pions created in proton-proton collisions close to the black hole; they also produce $\sim 10$...
Convection-Dominated Accretion Flows (1999)
Quataert, Eliot, Gruzinov, Andrei
Non-radiating, advection-dominated, accretion flows are convectively unstable. We calculate the two-dimensional (r-theta) structure of such flows assuming that (1) convection transports angular...
Quataert, Eliot, Di Matteo, Tiziana, Narayan, Ramesh, Ho, Luis C.
M81 and NGC 4579 are two of the few low-luminosity active galactic nuclei which have an estimated mass for the central black hole, detected hard X-ray emission, and detected optical/UV emission. In...
The Cooling Flow to Accretion Flow Transition (1999)
Quataert, Eliot, Narayan, Ramesh
Cooling flows in galaxy clusters and isolated elliptical galaxies are a source of mass for fueling accretion onto a central supermassive black hole. We calculate the dynamics of accreting matter in...
What is the Accretion Rate in Sgr A*? (1999)
Quataert, Eliot, Narayan, Ramesh, Reid, Mark
The radio source Sgr A* at the center of our Galaxy is believed to be a 2.6 x 10^6 solar mass black hole which accretes gas from the winds of nearby stars. We show that limits on the X-ray and...
Spectral Models of Advection-Dominated Accretion Flows with Winds (1998)
Quataert, Eliot, Narayan, Ramesh
We calculate spectral models of advection-dominated accretion flows, taking into account the possibility that significant mass may be lost to a wind. We apply the models to the soft X-ray transient...
On the Energetics of Advection-Dominated Accretion Flows (1998)
Quataert, Eliot, Narayan, Ramesh
Using mean field MHD, we discuss the energetics of optically thin, two temperature, advection-dominated accretion flows (ADAFs). If the magnetic field is tangled and roughly isotropic, flux freezing...
Particle Heating in Advection-Dominated Accretion Flows (1998)
I review particle heating by MHD turbulence in collisionless plasmas appropriate to advection-dominated accretion flows. These considerations suggest that the preferential turbulent heating of...
The Proton Distribution Function in Weakly Magnetized Turbulent Plasmas (1998)
Gruzinov, Andrei, Quataert, Eliot
We calculate the proton distribution function due to heating by subsonic (Alfvenic) turbulence in a weakly magnetized collisionless plasma. The distribution function is nonthermal. For...
Astrophysical Evidence for Black Hole Event Horizons (1998)
Menou, Kristen, Quataert, Eliot, Narayan, Ramesh
Astronomers have discovered many potential black holes in X-ray binaries and galactic nuclei. These black holes are usually identified by the fact that they are too massive to be neutron stars. Until...
Advection-Dominated Accretion around Black Holes (1998)
Narayan, Ramesh, Mahadevan, Rohan, Quataert, Eliot
This article reviews the physics of advection-dominated accretion flows (ADAFs) and describes applications to several black hole X-ray binaries and galactic nuclei. The possibility of using ADAFs to...
Turbulence and Particle Heating in Advection-Dominated Accretion Flows (1998)
Quataert, Eliot, Gruzinov, Andrei
We extend and reconcile recent work on turbulence and particle heating in advection-dominated accretion flows. For approximately equipartition magnetic fields, the turbulence primarily heats the...
Particle Heating by Alfvenic Turbulence in Hot Accretion Flows (1997)
Recent work on Alfvenic turbulence by Goldreich & Sridhar (1995; GS) suggests that the energy cascades almost entirely perpendicular to the local magnetic field. As a result, the cyclotron resonance...
Are Particles in Advection-Dominated Accretion Flows Thermal? (1997)
Mahadevan, Rohan, Quataert, Eliot
We investigate the form of the momentum distribution function for protons and electrons in an advection-dominated accretion flow (ADAF). We show that for all accretion rates, Coulomb collisions are...
Observational Searches for Solar g-modes: Some Theoretical Considerations (1995)
Kumar, Pawan, Quataert, Eliot, Bahcall, John N.
We argue that the solar g-modes are unlikely to have caused the discrete peaks in the power spectrum of the solar wind flux observed by Thomson et al. (1995). The lower limit to the energy of...
On the Validity of the Classical Apsidal Motion Formula for Tidal Distortion (1995)
Quataert, Eliot, Kumar, Pawan, Ao, Chi On
We check the validity of the widely used classical apsidal motion formula as a function of orbital parameters, stellar structure, and stellar rotation rate by comparing dynamical calculations of the...