Star Formation at the Galactic Center (2009)
Molecular clouds at the Galactic center (GC) have environments considerably different from their disk counterparts. The GC may therefore provide important clues about how the environment affects star...
Holden, Lisa, Hoppins, Kevin, Baxter, Benjamin, Fatuzzo, Marco
A self-similar formalism for the study of the gravitational collapse of molecular gas provides an important theoretical framework from which to explore the dynamics of star formation. Motivated by...
Diffuse TeV Emission at the Galactic Centre (2008)
Wommer, Elizabeth, Melia, Fulvio, Fatuzzo, Marco
The High-Energy Stereoscopic System (HESS) has detected intense diffuse TeV emission correlated with the distribution of molecular gas along the galactic ridge at the centre of our Galaxy. Earlier...
Stochastic Acceleration in the Galactic Center HESS Source (2006)
Liu, Siming, Melia, Fulvio, Petrosian, Vahe, Fatuzzo, Marco
Stochastic acceleration of electrons interacting resonantly with a turbulent magnetic field in a small accretion torus appears to be the likely mechanism responsible for much of Sagittarius A*'s...
Fatuzzo, Marco, Melia, Fulvio, Crocker, Roland Murley
In recent years, apparent anisotropies in the ~EeV cosmic ray (CR) flux arriving at Earth from the general direction of the galactic center have been reported from the analysis of AGASA and SUGAR...
Fatuzzo, Marco, Melia, Fulvio, Crocker, Roland Murley
In recent years, apparent anisotropies in the ~EeV cosmic ray (CR) flux arriving at Earth from the general direction of the galactic center have been reported from the analysis of AGASA and SUGAR...
Adams, Fred C., Proszkow, Eva M., Fatuzzo, Marco, Myers, Philip C.
This paper studies the dynamical evolution of young stellar clusters with $N$ = 100 - 1000 members. We use N-body simulations to explore how evolution depends on system size $N$ and the initial...
Primary Versus Secondary Leptons in the EGRET SNR's (2004)
The EGRET supernova remnants (SNR's) are all expanding into nearby dense molecular clouds, powering a shock at the interface where protons and electrons accelerate to relativistic energies. A viable...
Crocker, Roland M., Fatuzzo, Marco, Jokipii, Randy, Melia, Fulvio, Volkas, Raymond R.
Recent analysis of data sets from two extensive air shower cosmic ray detectors shows tantalizing evidence of an anisotropic overabundance of cosmic rays towards the Galactic Center (GC) that ``turns...
Dynamical Stability of Earth-Like Planetary Orbits in Binary Systems (2003)
David, Eva-Marie, Quintana, Elisa V., Fatuzzo, Marco, Adams, Fred C.
This paper explores the stability of an Earth-like planet orbiting a solar mass star in the presence of an outer-lying intermediate mass companion. The overall goal is to estimate the fraction of...
A Kinship between the EGRET SNR's and Sgr A East (2003)
Sgr A East appears to be a single, mixed morphology 10,000 year-old supernova remnant (SNR) at the Galactic Center. It also appears to belong to a class of remnants that have been observed and...
Enhancement of Ambipolar Diffusion Rates through Field Fluctuations (2002)
Fatuzzo, Marco, Adams, Fred C.
Previous treatments of ambipolar diffusion in star-forming molecular clouds do not consider the effects of fluctuations in the fluid fields about their mean values. This paper generalizes the...
Is Thermal Expansion Driving the Initial Gas Ejection in NGC 6251? (2001)
Melia, Fulvio, Liu, Siming, Fatuzzo, Marco
In this paper, we explore the possibility that the radiative properties of the most compact region in NGC 6251* may be understood in the same sense as Sgr A*, though with some telling differences...
Correlated Sub-mm and X-ray Variability in Sgr A* (2000)
Melia, Fulvio, Liu, Siming, Fatuzzo, Marco
PAPER WITHDRAWN. The recent detection of Sgr A* in the X-ray band, together with the radio polarization measurements conducted over the past few years, offer the best constraints yet for...
Electron Positron Annihilation Radiation from SgrA East at the Galactic Center (2000)
Fatuzzo, Marco, Melia, Fulvio, Rafelski, Johann
Maps of the Galactic electron-positron annihilation radiation show evidence for three distinct and significant features: (1) a central bulge source, (2) emission in the Galactic plane, and (3) an...
The Hard X-Ray to Gamma-ray Spectrum in the EGRET AGNs (1998)
EGRET (20 MeV to 30 GeV) on board the Compton GRO has observed high-energy emission from about 40-50 Active Galactic Nuclei. Theoretical models of this emission based on the upscattering of thermal...
Melia, Fulvio, Yusef-Zadeh, Farhad, Fatuzzo, Marco
Continuum low-frequency radio observations of the Galactic Center reveal the presence of two prominent radio sources, Sgr A East and its surrounding Halo, containing non-thermal particle...
A Theory of the IMF for Star Formation in Molecular Clouds (1996)
Adams, Fred C., Fatuzzo, Marco
We present models for the initial mass function (IMF) for stars forming within molecular clouds. These models use the idea that stars determine their own masses through the action of powerful stellar...
Wave Motions In Molecular Clouds: Results in Two Dimensions (1995)
Gehman, Curtis S., Adams, Fred C., Fatuzzo, Marco, Watkins, Richard
We study the linear evolution of small perturbations in self-gravitating fluid systems in two spatial dimensions; we consider both cylindrical and cartesian (i.e., slab) geometries. The treatment is...
Nonlinear stationary waves and solitary waves in fluid systems with long-range forces (1993)
Adams, Fred C., Fatuzzo, Marco, Watkins, Richard
We study a class of nonlinear model equations which represent one-dimensional fluid systems with long range forces (such as gravity). We present elementary theorems which constrain the allowed types...
General Analytic Results for Nonlinear Waves and Solitons in Molecular Clouds (1993)
Adams, Fred C., Fatuzzo, Marco, Watkins, Richard
We study nonlinear wave phenomena in self-gravitating fluid systems, with a particular emphasis on applications to molecular clouds. This paper presents analytical results for one spatial dimension....