Lazaridis, K., Wex, N., Jessner, A., Kramer, M., Stappers, B. W., Janssen, G. H., ...
We present results from the high precision timing analysis of the pulsar-white dwarf (WD) binary PSR J1012+5307 using 15 years of multi-telescope data. Observations were performed regularly by the...
Simultaneous multi-frequency single-pulse properties of AXP XTE J1810-197 (2008)
Serylak, M., Stappers, B. W., Weltevrede, P., Kramer, M., Jessner, A., Lyne, A. G., ...
We have used the 76-m Lovell, 94-m equivalent WSRT and 100-m Effelsberg radio telescopes to investigate the simultaneous single-pulse properties of the radio emitting magnetar AXP XTE J1810-197 at...
Multi-telescope timing of PSR J1518+4904 (2008)
Janssen, G. H., Stappers, B. W., Kramer, M., Nice, D. J., Jessner, A., Cognard, I., ...
PSR J1518+4904 is one of only 9 known double neutron star systems. These systems are highly valuable for measuring the masses of neutron stars, measuring the effects of gravity, and testing...
Radio spectrum of the AXP J1810-197 and of its profile components (2008)
Lazaridis, K., Jessner, A., Kramer, M., Stappers, B. W., Lyne, A. G., Jordan, C. A., ...
As part of a European Pulsar Network (EPN) multi-telescope observing campaign, we performed simultaneous multi-frequency observations at 1.4, 4.9 and 8.4 GHz during July 2006 and quasi-simultaneous...
Observations of pulsars at 9 millimetres (2008)
Loehmer, O., Jessner, A., Kramer, M., Wielebinksi, R., Maron, O.
The behaviour of the pulsar spectrum at high radio frequencies can provide decisive information about the nature of the radio emission mechanism. We report recent observations of a selected sample of...
Multi-telescope timing of PSR J1518+4904 (2008)
Janssen, G.H., Stappers, B.W., Kramer, M., Nice, D.J., Jessner, A., Cognard, I., ...
Context. PSR J1518+4904 is one of only 9 known double neutron star systems. These systems are highly valuable for measuring the masses of neutron stars, measuring the effects of gravity, and testing...
Radio spectrum of the AXP J1810−197 and of its profile components (2008)
Lazaridis, K., Jessner, A., Kramer, M., Stappers, B.W., Lyne, A.G., Jordan, C.A., ...
As part of a European Pulsar Network (EPN) multitelescope observing campaign, we performed simultaneous multifrequency observations at 1.4, 4.9 and 8.4 GHz during 2006 July and quasi-simultaneous...
Polarized radio emission from a magnetar (2007)
Kramer, M., Stappers, B. W., Jessner, A., Lyne, A. G., Jordan, C. A.
We present polarization observations of the radio emitting magnetar AXP J1810-197. Using simultaneous multi-frequency observations performed at 1.4, 4.9 and 8.4 GHz, we obtained polarization...
The Geometry of PSR B0031-07 (2007)
Smits, J. M., Mitra, D., Stappers, B. W., Kuijpers, J., Weltevrede, P., Jessner, A., ...
PSR B0031-07 is well known to exhibit three different modes of drifting sub-pulses (mode A, B and C). It has recently been shown that in a multifrequency observation, consisting of 2700 pulses, all...
Comparison of giant radio pulses in young pulsars and millisecond pulsars (2007)
Slowikowska, A., Jessner, A., Kanbach, G., Klein, B.
Pulse-to-pulse intensity variations are a common property of pulsar radio emission. For some of the objects single pulses are often 10-times stronger than their average pulse. The most dramatic...
The geometry of PSR B0031-07 (2006)
Smits, R., Mitra, D., Stappers, B., Kuijpers, J., Weltevrede, P., Jessner, A., ...
Here we present the results from an analysis of a multifrequency simultaneous observation of PSR B0031$-$07. We have constructed a geometrical model, based on an empirical relationship between height...
The binary pulsar PSR J1811-1736: evidence of a low amplitude supernova kick (2006)
Corongiu, A., Kramer, M., Stappers, B. W., Lyne, A. G., Jessner, A., Possenti, A., ...
Aims: The binary pulsar PSR J1811-1736 has been identified, since its discovery, as a member of a double neutron star system. Observations of such binary pulsars allow the measurement of general...
International Colloquium on Scattering and Scintillation in Radio Astronomy (2006)
Shishov, V I, Coles, W A, Rickett, B J, Bird, M K, Efimov, A I, Samoznaev, L N, ...
Topics of the Colloquium: a) Interplanetary scintillation b) Interstellar scintillation c) Modeling and physical origin of the interplanetary and the interstellar plasma turbulence d) Scintillation...
Shishov, V. I., Coles, W. A., Rickett, B. J., Bird, M. K., Efimov, A. I., Samoznaev, L. N., ...
Topics of the Colloquium: a) Interplanetary scintillation b) Interstellar scintillation c) Modeling and physical origin of the interplanetary and the interstellar plasma turbulence d) Scintillation...
The European Pulsar Timing Array (2006)
Stappers, B.W., Kramer, M., Lyne, A.G., D'Amico, N., Jessner, A.
The timing of radio pulsars provides a tool for studying a wide range of fundamental physical and astrophysical problems. The best results are obtained by regular, frequent timing observations of a...
Polarization characteristics of the Crab pulsar's giant radio pulses at HFCs phases (2005)
Slowikowska, A., Jessner, A., Klein, B., Kanbach, G.
We discuss our recent discovery of the giant radio emission from the Crab pulsar at its high frequency components (HFCs) phases and show the polarization characteristic of these pulses. This leads us...
Giant radio pulses from the Crab pulsar (2005)
Jessner, A., Slowikowska, A., Klein, B., Lesch, H., Jaroschek, C. H., Kanbach, G., ...
Giant radio pulses from the Crab pulsar (2005)
Jessner, A., Slowikowska, A., Klein, B., Lesch, H., Jaroschek, C. H., Kanbach, G., ...
A 2.1 Msolar pulsar measured by relativistic orbital decay (2005)
Nice, D. J., Splaver, E. M., Stairs, I. H., Löhmer, O., Jessner, A., Kramer, M., ...
Pulsar Physics at Low Frequencies (2004)
Eilek, J. A., Hankins, T. H., Jessner, A.
Recent work has made it clear that the ``standard model'' of pulsar radio emission cannot be the full answer. Some fundamental assumptions about the magnetic field and plasma flow in the radio-loud...
Giant Radio Pulses from the Crab Pulsar (2004)
Jessner, A., Slowikowska, A., Klein, B., Lesch, H., Jaroschek, C. H., Kanbach, G., ...
Individual giant radio pulses (GRPs) from the Crab pulsar last only a few microseconds. However, during that time they rank among the brightest objects in the radio sky reaching peak flux densities...
The Parallax, Mass and Age of the PSR J2145-0750 binary system (2004)
Loehmer, O., Kramer, M., Driebe, T., Jessner, A., Mitra, D., Lyne, A. G.
We present results of timing measurements of the binary millisecond pulsar PSR J2145-0750. Combining timing data obtained with the Effelsberg and Lovell radio telescopes we measure a significant...
The parallax, mass and age of the PSR J2145-0750 binary system (2004)
Löhmer, O., Kramer, M., Driebe, T., Jessner, A., Mitra, D., Lyne, A. G.
Shishov, V. I., Smirnova, T. V., Sieber, W., Malofeev, V. M., Potapov, V. A., Stinebring, D., ...
Interstellar scintillation multi- frequency observations of PSR 0329 + 54 in the frequency range from 102 MHz to 5 GHz were analysed to estimate the spectrum of interstellar plasma inhomogeneities in...
The effect of HII regions on rotation measure of pulsars (2003)
Mitra, D., Wielebinski, R., Kramer, M., Jessner, A.
We have obtained new rotation measures for 11 pulsars observed with the Effelsberg 100-m radio telescope, in the direction of the Perseus arm. Using a combination of 34 published and the 11 newly...
A current circuit model of pulsar radio emission (2002)
Kunzl, Th., Lesch, H., Jessner, A.
We present the outline of a new model for the coherent radio emission of pulsars that succeeds in reproducing the energetics and brightness temperatures of the observed radio emission from the...
Natural Limits for Currents in Charge Separated Pulsar Magnetospheres (2002)
Jessner, A., Lesch, H., Kunzl, T.
Rough estimates and upper limits on current and particle densities form the basis of most of the canonical pulsar models. Whereas the surface of the rotating neutron star is capable of supplying...
Orbital variability of the PSR J2051-0827 Binary System (2001)
Doroshenko, O., Loehmer, O., Kramer, M., Jessner, A., Wielebinski, R., Lyne, A. G., ...
We have carried out high-precision timing measurements of the binary millisecond pulsar PSR J2051$-$0827 with the Effelsberg 100-m radio telescope of the Max-Planck-Institut f\"ur Radioastronomie and...
Karastergiou, A., Von Hoensbroech, A., Kramer, M., Lorimer, D. R., Lyne, A. G., Doroshenko, O., ...
We present the first results from a programme of multi-frequency simultaneous single pulse observations carried out as part of the European Pulsar Network. We detail the main data analysis methods...
Microwave plasma emission of a flare on AD Leo (2001)
Stepanov, A. V., Kliem, B., Zaitsev, V. V., Fuerst, E., Jessner, A., Krueger, A., ...
An intense radio flare on the dMe star AD Leo, observed with the Effelsberg radio telescope and spectrally resolved in a band of 480 MHz centred at 4.85 GHz is analysed. A lower limit of the...
Charge densities above pulsar polar caps (2000)
Jessner, A., Lesch, H., Kunzl, T.
The ability of the neutron star surface to supply all or only part of the charges filling the pulsar magnetosphere is crucial for the physics prevailing within it, with direct consequences for the...
The Effelsberg Search for Pulsars in the Galactic Centre (2000)
Kramer, M., Klein, B., Lorimer, D. R., Mueller, P., Jessner, A., Wielebinski, R.
We report the status of a search for pulsars in the Galactic Centre, using a completely revised and improved high-sensitivity double-horn system at 4.85-GHz. We also present calculations about the...
A 1400-MHz pilot search for young pulsars (1999)
Lorimer, D. R., Kramer, M., Mueller, P., Wex, N., Jessner, A., Lange, C., ...
We have used the Effelsberg 100-m radio telescope to conduct a 1400-MHz ($\lambda$ 21-cm) search for young and rapidly rotating radio pulsars along a 2 deg$^2$ strip of the northern Galactic plane...
The characteristics of millisecond pulsar emission: III.From low to high frequencies (1999)
Kramer, M., Lange, C., Lorimer, D. R., Backer, D. C., Xilouris, K. M., Jessner, A., ...
In this paper we present the first observations of a large sample of millisecond pulsars at frequencies of 2.7 GHz and 4.9 GHz. Our new flux measurements extend the known spectra for millisecond...
Role of time resolution on polarization of pulsar radiation (1999)
Gangadhara, R. T, Xilouris, K. M, Von Hoensbroech, A, Kramer, M, Jessner, A, Wielebinski, R
The role of orthogonal polarization modes in pulsar emission is re-examined in view of polarization data of high time resolution. Individual pulse data of PSR B1133+16 at 1.41 GHz, obtained with time...
On the Possibility of Curvature Radiation from Radio Pulsars (1998)
Lesch, H., Jessner, A., Kramer, M., Kunzl, Th.
We consider the widespread hypothesis that coherent curvature radiation is responsible for the radio emission of pulsars. The comparison of energy conservation and the published data and luminosities...
Kramer, M., Xilouris, K. M., Lorimer, D., Doroshenko, O., Jessner, A., Wielebinski, R., ...
We have monitored a large sample of millisecond pulsars using the 100-m Effelsberg radio telescope in order to compare their radio emission properties to the slowly rotating population. With some...
The characteristics of millisecond pulsar emission: II. Polarimetry (1998)
Xilouris, K. M., Kramer, M., Jessner, A., Von Hoensbroech, A., Lorimer, D., Wielebinski, R., ...
We have made polarimetric monitoring observations of millisecond pulsars visible from the northern hemisphere at 1410 MHz. Their emission properties are compared with those of normal pulsars....
A flexible format for exchanging pulsar data (1998)
Lorimer, D. R., Jessner, A., Seiradakis, J. H., Lyne, A. G., D'Amico, N., Athanasopoulos, A., ...
We describe a data format currently in use amongst European institutions for exchanging and archiving pulsar data. The format is designed to be as flexible as possible with regard to present and...
Origin of pulsar radio emission -- I. High frequency data (1997)
M. Kramer, Kramer Xilouris, A. Jessner, D. R. Lorimer, R. Wielebinski, A. G. Lyne
. Using the pulse arrival times from pulsar observations made between 1.4 and 32 GHz, we constrain the location and size of the emission region. We demonstrate that for normal pulsars the magnetic...