M. Brozović
A5042083671- Astro and Planetary Science
- Planetary Science and Exploration
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Isotope Analysis in Ecology
- Space Satellite Systems and Control
- Geology and Paleoclimatology Research
- Space Exploration and Technology
- Dark Matter and Cosmic Phenomena
- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Cosmology and Gravitation Theories
- Particle Detector Development and Performance
- Space Science and Extraterrestrial Life
- Space exploration and regulation
- Particle Accelerators and Free-Electron Lasers
- Spacecraft and Cryogenic Technologies
- Spacecraft Design and Technology
- Geophysics and Gravity Measurements
- Astronomy and Astrophysical Research
- Computational Physics and Python Applications
- Neural dynamics and brain function
Jet Propulsion Laboratory
2016-2025
University of Central Florida
2021
Colorado School of Mines
2021
Massachusetts Institute of Technology
2021
Sorbonne Université
2021
Centre National de la Recherche Scientifique
2021
Auburn University
2021
Lunar and Planetary Institute
2021
California Institute of Technology
2006-2020
University of Colorado Boulder
2016
New Horizons' views of Pluto The flyby and its moon Charon by the Horizons spacecraft generated news coverage around world. Now Stern et al. report first scientific results from high-speed encounter. surface is surprisingly diverse, with large regions differing brightness composition. There ample evidence for ongoing rich geological processes that act to sculpt surface. Charon's similarly complex, numerous relief structures varied coloration. Pluto's atmosphere extensive but less dense than...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
Active asteroids are those that show evidence of ongoing mass loss. We report repeated instances particle ejection from the surface (101955) Bennu, demonstrating it is an active asteroid. The events were imaged by OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) spacecraft. For three largest observed events, we estimated ejected velocities sizes, event times, source regions, energies. also determined trajectories photometric properties...
Abstract The Double Asteroid Redirection Test (DART) spacecraft successfully performed the first test of a kinetic impactor for asteroid deflection by impacting Dimorphos, secondary near-Earth binary (65803) Didymos, and changing orbital period Dimorphos. A change in approximately 7 min was expected if incident momentum from DART directly transferred to target perfectly inelastic collision 1 , but studies probable impact conditions properties indicated that considerable enhancement ( β )...
Abstract The Double Asteroid Redirection Test (DART) mission impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos, on 2022 September 26 UTC. We estimate changes in orbital and physical properties system due to impact using ground-based photometric radar observations, as well DART camera observations. Under assumption that Didymos is an oblate spheroid, we its equatorial polar radii are 394 ± 11 m 290 16 m, respectively. instantaneously changed along-track velocity...
We report on measurements of differential cross sections dsigma/dp(T) for prompt charm meson production in ppmacr; collisions at sqrt[s]=1.96 TeV using 5.8+/-0.3 pb(-1) data from the CDF II detector Fermilab Tevatron. The are collected with a new trigger that is sensitive to long lifetime hadrons containing heavy flavor. measured central rapidity region |y|</=1 four fully reconstructed decay modes: D0-->K-pi(+), D(*+)-->D0pi(+), D+-->K-pi(+)pi(+), D(+)(s)-->phipi(+), and their charge...
We have measured the polarization of J/psi and psi(2S) mesons produced in pp collisions at sqrt[s] = 1.8 TeV, using data collected Collider Detector Fermilab during 1992-1995. The promptly [psi(2S)] is isolated from those B-hadron decay, over kinematic range 4 [5.5]<P(T)<20 GeV/c |y|<0.6. For P(T) greater than or approximately equal 12 we do not observe significant prompt component.
The growth and development of ``charged particle jets'' produced in proton-antiproton collisions at $1.8 \mathrm{TeV} $ are studied over a transverse momentum range from $0.5$ $\mathrm{GeV}/c$ to $50$ $\mathrm{GeV}/c.$ A variety leading (highest momentum) charged jet observables compared with the QCD Monte Carlo models HERWIG, ISAJET, PYTHIA. describe fairly well multiplicity distribution particles within jet, size radial around direction, jet. direction jet'' each event is used define three...
We report on measurements of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) differential cross sections (d(2)sigma/dp(T)dy)(/y/<0.4), as well Upsilon(1S) polarization in p macro collisions at square root s = 1.8 TeV using a sample 77+/-3 pb(-1) collected by collider detector Fermilab. The three resonances were reconstructed through decay Upsilon-->mu(+)mu(-). measured angular distribution muons rest frame is consistent with unpolarized meson production.
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
Abstract We analyze the trajectories of 313 particles seen in near‐Bennu environment between December 2018 and September 2019. Of these, 65% follow suborbital trajectories, 20% undergo more than one orbital revolution around asteroid, 15% directly escape on hyperbolic trajectories. The median lifetime these is ∼6 hr. are sensitive to Bennu's gravitational field, which allows us reliably estimate spherical harmonic coefficients through degree 8 resolve nonuniform mass distribution 3....
We report results from a study of events with leading antiproton beam momentum fraction 0.905<x(F)<0.965 and 4-momentum transfer squared |t|<3 GeV2 produced in &pmacr;p collisions at sqrt[s] = 1800 GeV the Fermilab Tevatron collider. Approximately 2% contain two jets transverse energy E(jet)(T)>7 GeV. Using dijet events, we evaluate diffractive structure function compare it expectations based on obtained deep inelastic scattering experiments DESY ep collider HERA.
Abstract We present the results of a fourth planetary defense exercise, focused this time on small near-Earth asteroid (NEA) 2023 DZ2 and conducted during its close approach to Earth in March. The International Asteroid Warning Network (IAWN), with support from NASA's Planetary Defense Coordination Office (PDCO), has been coordinating observational campaigns since 2017 test operational readiness global capabilities. last campaign NEA Apophis, an outcome that exercise was need for short burst...
<title>Abstract</title> Understanding the physical characteristics of small bodies in Solar System is crucial for refining models their formation and evolution. Although several kilometre-sized asteroids have already been visited by spacecraft, 1998 KY26 will be first asteroid decametre range to explored situ. Its diameter spin period place it above barrier, suggesting that its properties may differ from those previously bodies. However, key remain poorly understood. We conducted a...
Abstract Contact binaries are found throughout the solar system. The recent discovery of Selam, satellite MBA (152830) Dinkinesh, by NASA LUCY mission has made it clear that term ‘contact binary’ covers a variety different types bi-modal mass distributions and formation mechanisms. Only modelling more contact can this population be properly understood. We determined spin state shape model for Apollo group binary asteroid (388188) 2006 DP14using ground-based optical radar observations...
We present results from the measurement of inclusive jet cross section for transverse energies 40 to 465 GeV in pseudorapidity range $0.1<|\ensuremath{\eta}|<0.7.$ The are based on 87 ${\mathrm{pb}}^{\ensuremath{-}1}$ data collected by CDF Collaboration at Fermilab Tevatron collider. consistent with previously published results. also QCD predictions given flexibility allowed current knowledge proton parton distributions. develop a new procedure ranking agreement distributions and find...
We have performed a search for gluinos (g) and scalar quarks (q) in data sample of 84 pb(-1) pp collisions at square root[s] = 1.8 TeV, recorded by the Collider Detector Fermilab. investigate final state large missing transverse energy three or more jets, characteristic signature R-parity-conserving supersymmetric models. The analysis has been "blind," that inspection signal region is made only after predictions from standard model backgrounds calculated. Comparing with constrained models,...