G. E. Morfill

Details der Publikationsliste

Zeitraum

1984 - 2010

Anzahl

313

Co-Autoren

Acceleration of small astrophysical grains due to charge fluctuations (2010)

Ivlev, A. V., Lazarian, A., Tsytovich, V. N., De Angelis, U., Hoang, Thiem, Morfill, G. E.

We discuss a novel mechanism of dust acceleration which dominates for particles smaller than $\sim0.1 \mu$m. The acceleration is caused by charge fluctuations occurring on grains during their mutual...

Dusty Magnetohydrodynamics in Star Forming Regions (2010)

Van Loo, S., Falle, S. A. E. G., Hartquist, T. W., Havnes, O., Morfill, G. E.

Star formation occurs in dark molecular regions where the number density of hydrogen nuclei, nH, exceeds 10^4 cc and the fractional ionization is 10^-7 or less. Dust grains with sizes ranging up to...

Three years of Ulysses dust data: 2005 to 2007 (2009)

Krueger, Harald, Dikarev, V., Anweiler, B., Dermott, S. F., Graps, A. L., Gruen, E., ...

The Ulysses spacecraft has been orbiting the Sun on a highly inclined ellipse since it encountered Jupiter in February 1992. Since then it made almost three revolutions about the Sun. Here we report...

Galileo dust data from the jovian system: 2000 to 2003 (2009)

Krueger, Harald, Bindschadler, D., Dermott, S. F., Graps, A. L., Gruen, E., Gustafson, B. A., ...

The Galileo spacecraft was orbiting Jupiter between Dec 1995 and Sep 2003. The Galileo dust detector monitored the jovian dust environment between about 2 and 370 R_J (jovian radius R_J = 71492 km)....

First direct measurement of optical phonons in 2D plasma crystals (2009)

Couëdel, L., Nosenko, V., Zhdanov, S. K., Ivlev, A. V., Thomas, H. M., Morfill, G. E.

Spectra of phonons with out-of-plane polarization were studied experimentally in a 2D plasma crystal. The dispersion relation was directly measured for the first time using a novel method of particle...

Dynamics of lane formation in driven binary complex plasmas (2008)

Sütterlin, K. R., Wysocki, A., Ivlev, A. V., Räth, C., Thomas, H. M., Rubin-Zuzic, M., ...

The dynamical onset of lane formation is studied in experiments with binary complex plasmas under microgravity conditions. Small microparticles are driven and penetrate into a cloud of big particles,...

Electromechanical Effect in Complex Plasmas (2008)

Zhdanov, S., Schwabe, M., Heidemann, R, Thomas, H. M., Rubin-Zuzic, M., Rothermel, H., ...

Experimental results on an auto-oscillatory pattern observed in a complex plasma are presented. The experiments are performed with an argon plasma which is produced under microgravity conditions...

Convective dust clouds in a complex plasma (2008)

Mitic, S., Suetterlin, R., Ivlev, A. V., Hoefner, H., Thoma, M. H., Zhdanov, S., ...

The plasma is generated in a low frequency glow discharge within an elongated glass tube oriented vertically. The dust particles added to the plasma are confined above the heater and form...

In situ dust measurements in the inner Saturnian system (2006)

Srama, R., Kempf, S., Moragas-Klostermeyer, G., Helfert, S., Ahrens, T.J., Altobelli, N., ...

In July 2004 the Cassini–Huygens mission reached the Saturnian system and started its orbital tour. A total of 75 orbits will be carried out during the primary mission until August 2008. In these...

In situ dust measurements in the inner Saturnian system (2006)

Srama, R., Kempf, S., Moragas-Klostermeyer, G., Helfert, S., Ahrens, T. J., Altobelli, N., ...

In July 2004 the Cassini-Huygens mission reached the Saturnian system and started ist orbital tour. A total of 75 orbits will be carried out during the primary mission until August 2008. In these...

Galileo dust data from the jovian system: 1997–1999 (2006)

Krüger, H., Bindschadler, D., Dermott, S. F., Graps, A. L., Grün, E., Gustafson, B. A., ...

The dust detector system on board the Galileo spacecraft recorded dust impacts in circumjovian space during the craft's orbital mission about Jupiter. This is the eighth in a series of papers...

Five years of Ulysses dust data : 2000 to 2004 (2006)

Krüger, H., Altobelli, N., Anweiler, B., Dermott, S. F., Dikarev, V., Fechtig, H., ...

The Ulysses spacecraft has been orbiting the Sun on a highly inclined ellipse (i=79, perihelion distance 1.3 AU, aphelion distance 5.4 AU) since it encountered Jupiter in 1992. Between January 2000...

In-situ dust measurements at Saturn (2006)

Srama, R., Kempf, Sascha, Moragas-Klostermeyer, G., Helfert, S., Ahrens, T. J., Altobelli, N., ...

In July 2004 the Cassini–Huygens mission reached the Saturnian system and started its orbital tour. A total of 75 orbits will be carried out during the primary mission until August 2008. In these...

Measurement of the Ion Drag Force in a Complex DC-Plasma Using the PK-4 Experiment (2004)

Thoma, M. H., Hoefner, H., Khrapak, S. A., Kretschmer, M., Quinn, R. A., Ratynskaia, S., ...

The force on a microparticle in a complex plasma by streaming ions, the so-called ion drag force, is not well known. However, it is important for the understanding of interesting phenomena in complex...

The Cassini Cosmic Dust Analyzer (2004)

Srama, R., Ahrens, T.J., Altobelli, N., Auer, S., Bradley, J.G., Burton, M., ...

The Cassini-Huygens Cosmic Dust Analyzer (CDA) is intended to provide direct observations of dust grains with masses between 10−19 and 10−9 kg in interplanetary space and in the jovian and...

The Cassini Cosmic Dust Analyzer (2004)

Srama, R., Ahrens, T. J., Altobelli, N., Auer, S., Bradley, J. G., Burton, M., ...

The Cassini-Huygens Cosmic Dust Analyzer (CDA) is intended to provide direct observations of dust grains with masses between 10-19 and 10-9 kg in interplanetary space and in the jovian and saturnian...

Decharging of complex plasmas : First kinetic observations (2003)

Ivlev, A. V., Kretschmer, M., Zuzic, M., Morfill, G. E., Rothermel, H., Thomas, H. M., ...

The first experiment on the decharging of a complex plasma in microgravity conditions was conducted. After switching off the rf power, in the afterglow plasma, ions and electrons rapidly recombine...

Complex plasmas : II. Elementary processes in complex plasmas (2003)

Morfill, G. E., Tsytovich, V. N., Thomas, H.

This paper continues a series of review papers devoted to the physics of complex plasmas. The review contains a description of elementary processes in complex plasmas. The elementary processes are...

A review of liquid and crystalline plasmas - new physical states of matter? (2002)

Morfill,G. E., Annaratone,B. M., Bryant,P., Ivlev,A. V., Thomas,H. M., Zuzic,M., ...

Liquid and crystalline phases can be formed in so-called complex plasmas—plasmas enriched with solid particles in the nano- to micrometre range. The particles absorb electrons and ions and charge...

A review of liquid and crystalline plasmas - new physical states of matter? (2002)

Morfill, G. E., Annaratone, B. M., Bryant, P., Ivlev, A. V., Thomas, H. M., Zuzic, M., ...

Liquid and crystalline phases can be formed in so-called complex plasmas-plasmas enriched with solid particles in the nano- to micrometre range. The particles absorb electrons and ions and charge...

Ion drag force in complex plasmas (2002)

Khrapak, S. A., Ivlev, A. V., Morfill, G. E., Thomas, H. M.

The problem of calculating the ion drag force in complex plasmas is considered. It is shown that the standard theory of Coulomb scattering usually fails for the ion-dust elastic collisions. A simple...

Dust diffusion across a magnetic field due to random charge fluctuations (2002)

Khrapak, S. A., Morfill, G. E.

Dust particle diffusion across a magnetic field due to random charge fluctuations is reconsidered. Previously it was suggested that this mechanism could be one of the most effective processes which...

Gravity compensation in complex plasmas by application of a temperature gradient (2002)

Rothermel, H., Hagl, T., Morfill, G. E., Thoma, M. H., Thomas, H. M.

Micron-sized particles are suspended or lifted up in a gas by thermophoresis. This allows the study of many processes occurring in strongly coupled complex plasmas at the kinetic level in a...

Coagulation of charged microparticles in neutral gas and charge-induced gel transitions (2002)

Ivlev, A. V., Morfill, G. E., Konopka, U.

Coagulation of charged particles was studied using the mean- field Smoluchowski equation. The coagulation equation was generalized for the case of a conserved system of charged particles. It was...

Complex-plasma boundaries (2002)

Annaratone, B. M., Khrapak, S. A., Bryant, P., Morfill, G. E., Rothermel, H., Thomas, H. M., ...

This study deals with the boundary between a normal plasma of ions and electrons, and an adjacent complex plasma of ions, electrons, and microparticles, as found in innumerable examples in nature....

Vibrational modes in plasma crystals due to nonlinear temperature distribution in gas discharge plasmas (2002)

Yaroshenko, V. V., Morfill, G. E., Vladimirov, S. V.

It is shown that a nonlinear temperature distribution in gas discharge plasma leads to a specific low-frequency mode of a quasi-two-dimensional plasma crystal. Linear dispersion characteristics of...

Complex plasmas: I. Complex plasmas as unusual state of matter (2002)

Tsytovich, V. N., Morfill, G. E., Thomas, H.

This paper opens a series of review papers devoted to the physics of the so-called complex plasmas. The review contains a description of new physical phenomena met in dusty plasmas and complex...

Collective attraction of equal-sign charged grains in plasmas (2002)

Tsytovich, V. N., Morfill, G. E.

It is shown that, in the presence of many grains embedded in a plasma, any two grains with the same charge sign can attract each other. The attraction is caused by collective effects. Both the...

Measurements of forces acting on suspended microparticles in the void region of a complex plasma (2002)

Thomas, E., Annaratone, B. M., Morfill, G. E., Rothermel, H.

A laboratory experiment has been performed in which a temperature gradient is used to generate a large central void in a rf-generated complex plasma. Through the use of laser flashing techniques,...

Anisotropic plasma crystal solitons (2002)

Zhdanov, S. K., Samsonov, D., Morfill, G. E.

An analytical two-dimensional model for weakly dispersive and weakly nonlinear longitudinal and transverse shear waves propagating in an ideal two-dimensional hexagonal Yukawa crystal is presented....

Four years of Ulysses dust data: 1996-1999 (2001)

Krüger,Harald, Grün,Eberhard, Landgraf,M., Dermott,S., Fechtig,Hugo, Gustafson,B. A., ...

The Ulysses spacecraft is orbiting the Sun on a highly inclined ellipse (i=79°, perihelion distance 1.3 AU, aphelion distance 5.4 AU). Between January 1996 and December 1999 the spacecraft was...

One year of Galileo dust data from the Jovian system: 1996 (2001)

Krüger,Harald, Grün,Eberhard, Graps,Amara, Bindschadler,D., Dermott,S., Fechtig,Hugo, ...

The dust detector system onboard Galileo has recoding dust impacts in circumjovian space since the spacecraft was injected into a bound orbit about Jupiter in December 1995. This is the sixth in a...

Four years of Ulysses dust data: 1996-1999 (2001)

Krüger, H., Grün, E., Landgraf, M., Dermott, S., Fechtig, H., Gustafson, B. A., ...

The Ulysses spacecraft is orbiting the Sun on a highly inclined ellipse (i=79°, perihelion distance 1.3 AU, aphelion distance 5.4 AU). Between January 1996 and December 1999 the spacecraft was...

Gravity compensation in complex plasmas by application of a temperature gradient (2001)

Rothermel, H., Hagl, T., Morfill, G. E., Thoma, M. H., Thomas, H. M

Micron sized particles are suspended or even lifted up in a gas by thermophoresis. This allows the study of many processes occurring in strongly coupled complex plasmas at the kinetic level in a...

One year of Galileo dust data from the Jovian system: 1996 (2001)

Krüger, H., Grün, E., Graps, A., Bindschadler, D., Dermott, S., Fechtig, H., ...

The dust detector system onboard Galileo records dust impacts in circumjovian space since the spacecraft has been injected into a bound orbit about Jupiter in December 1995. This is the sixth in a...

Four years of Ulysses dust data: 1996 to 1999 (2001)

Krüger, H., Grün, E., Landgraf, M., Dermott, S., Fechtig, H., Gustafson, B. A., ...

The Ulysses spacecraft is orbiting the Sun on a highly inclined ellipse ($ i = 79^{\circ}$, perihelion distance 1.3 AU, aphelion distance 5.4 AU). Between January 1996 and December 1999 the...

Four years of Ulysses dust data: 1996-1999 (2001)

Krüger, H., Grün, E., Landgraf, M., Dermott, S., Fechtig, H., Gustafson, B. A., ...

The Ulysses spacecraft is orbiting the Sun on a highly inclined ellipse(/i=79°, perihelion distance 1.3 AU, aphelion distance 5.4 AU).Between January /1996 and December /1999 the spacecraft was...

One year of Galileo dust data from the Jovian system: 1996 (2001)

Krüger, H., Grün, E., Graps, A., Bindschadler, D., Dermott, S., Fechtig, H., ...

The dust detector system onboard Galileo has recoding dust impacts incircumjovian space since the spacecraft was injected into a bound orbitabout Jupiter in December 1995. This is the sixth in a...

One year of Galileo dust data from the Jovian system: 1996 (2001)

Krüger, H., Grün, E., Graps, A., Bindschadler, D., Dermott, S., Fechtig, H., ...

The dust detector system onboard Galileo has recoding dust impacts in circumjovian space since the spacecraft was injected into a bound orbit about Jupiter in December 1995. This is the sixth in a...

Four years of Ulysses dust data: 1996-1999 (2001)

Krüger, Harald, Grün, Eberhard, Landgraf, M., Dermott, S., Fechtig, Hugo, Gustafson, B. A., ...

The Ulysses spacecraft is orbiting the Sun on a highly inclined ellipse (i=79°, perihelion distance 1.3 AU, aphelion distance 5.4 AU). Between January 1996 and December 1999 the spacecraft was...

One year of Galileo dust data from the Jovian system: 1996 (2001)

Krüger, Harald, Grün, Eberhard, Graps, Amara, Bindschadler, D., Dermott, S., Fechtig, Hugo, ...

The dust detector system onboard Galileo has recoding dust impacts in circumjovian space since the spacecraft was injected into a bound orbit about Jupiter in December 1995. This is the sixth in a...

Dust in the Local Interstellar Wind (1999)

Frisch, P. C., Dorschner, J. M., Geiss, J., Greenberg, J. M., Grün, E., Landgraf, M., ...

The gas-to-dust mass ratios found for interstellar dust within the Solar System, versus values determined astronomically for the cloud around the Solar System, suggest that large and small...

Three years of Galileo dust data: II. 1993 to 1995 (1998)

Krüger, H., Grün, E., Hamilton, D. P., Baguhl, M., Dermott, S., Fechtig, H., ...

Between Jan 1993 and Dec 1995 the Galileo spacecraft traversed interplanetary space between Earth and Jupiter and arrived at Jupiter on 7 Dec 1995. The dust instrument onboard was operating during...

Three years of Ulysses dust data: 1993 to 1995 (1998)

Krüger, H., Grün, E., Landgraf, M., Baguhl, M., Dermott, S., Fechtig, H., ...

The Ulysses spacecraft is orbiting the Sun on a highly inclined ellipse ($i = 79^{\circ}$). After its Jupiter flyby in 1992 at a heliocentric distance of 5.4 AU, the spacecraft reapproached the inner...

Physical processes in interstellar clouds / edited by G. E. Morfill and M. Scholer (1987)

NATO Advanced Study Institute On Physical Processes In Interstellar Clouds : (1986Irsee, Germany), Morfill, G. E, Scholer, M., 1940-

Proceedings of the NATO Advanced Study Institute on Physical Processes in Interstellar Clouds, Irsee, F. R. G., August, 18-28, 1986