M. Kramer, N. Wex, R. Wielebinski, Alexander Potekhin, Gilles Chabrier, Yuri Shibanov
. We study equilibrium properties of partially ionized hydrogen atmospheres and subphotospheric layers of weakly (with magnetic eld B 10 9 G) and strongly (B 10 10 G) magnetized neutron stars. In...
V. D. Pal'shin, A. I. Tsygan (2007)
Ioffe Physical Technical, M. Kramer, N. Wex, R. Wielebinski, V. D. Pal'shin, A. I. Tsygan
. It is shown that X-ray binaries can be accelerated by their own radiation. It is possible if the magnetic field of a neutron star in a binary differs from the dipolar field. Asymmetric X-ray...
Emission of Particles and Photons in the Pulsar Polar Cap (2007)
Tsygan St Peterburg, M. Kramer, N. Wex, R. Wielebinski, A. I. Tsygan
. We study emission of particles and photons from the pulsar polar cap. The Goldreich-Julian model for the regime of free emission of charged particles from the neutron star surface is used. In this...
On Large-Scale Magnetic Field Reversals in the Outer Galaxy (2007)
J. C. Brown, A.R. Taylor, R. Wielebinski, P. Mueller
We combine the observations of rotation measures of extragalactic radio sources from the Canadian Galactic Plane Survey and pulsars to investigate the question of magnetic field reversals in the...
Polarization observations of SNR G156.2+5.7 at lambda 6cm (2007)
Xu, J. W., Han, J. L., Sun, X. H., Reich, W., Xiao, L., Reich, P., ...
G156.2+5.7 is a large supernova remnant (SNR) first discovered in the ROSAT X-ray survey but radio observations are rare because of its low surface brightness and large size. Radio continuum and...
Sun, X. H., Han, J. L., Reich, W., Reich, P., Shi, W. B., Wielebinski, R., ...
(Abridged) Polarization measurements of the Galactic plane at lambda6 cm probe the interstellar medium (ISM) to larger distances compared to measurements at longer wavelengths, hence enable us to...
The distribution of the spectral index in the Galactic center region has been studied using calibrated maps in the frequency range between 843 MHz and 43.25 GHz. The common angular resolution at...
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...
Molecular gas in the Andromeda galaxy (2005)
Nieten, Ch., Neininger, N., Guelin, M., Ungerechts, H., Lucas, R., Berkhuijsen, E. M., ...
We present a new 12CO(J=1-0)-line survey of the Andromeda galaxy, M31, covering the bright disk with the highest resolution to date (85 pc along the major axis), observed On-the-Fly (in italics) with...
Krause, M., Wielebinski, R., Dumke, M.
We observed the nearby early-type spiral galaxy NGC 4594 (M 104, Sombrero galaxy) with the Very Large Array at 4.86 GHz, with the Effelsberg 100-m telescope at 8.35 GHz as well as with the Heinrich...
New lambda6cm observations of the Cygnus Loop (2005)
Sun, X. H., Reich, W., Han, J. L., Reich, P., Wielebinski, R.
Radio continuum and polarization observations of the entire Cygnus Loop at 6cm wavelength were made with the Urumqi 25m telescope. The 6cm map is analysed together with recently published maps from...
An absolutely calibrated survey of polarized emission from the northern sky at 1.4 GHz (2005)
Wolleben, M., Landecker, T. L., Reich, W., Wielebinski, R.
A new polarization survey of the northern sky at 1.41 GHz is presented. The observations were carried out using the 25.6m telescope at the Dominion Radio Astrophysical Observatory in Canada, with an...
The IAU historic radio astronomy working group. 2 : progress report (2005)
Orchiston, W., Bracewell, R., Davies, R., Goss, M., Gunn, A., ...
Shapiro delay in the PSR J1640+2224 binary system (2004)
Loehmer, O., Lewandowski, W., Wolszczan, A., Wielebinski, R.
We present the results of precision timing observations of the binary millisecond pulsar PSR J1640+2224. Combining the pulse arrival time measurements made with the Effelsberg 100-m radio telescope...
A Search for Cold Dust around Neutron Stars (2004)
Loehmer, O., Wolszczan, A., Wielebinski, R.
We present observations of nine radio pulsars using the Heinrich-Hertz-Telescope at \lambda 0.87mm and the IRAM 30-m telescope at \lambda 1.2mm in search for a cold dust around these sources. Five of...
Detection of a radio halo in the Virgo cluster (2004)
Vollmer, B., Reich, W., Wielebinski, R.
New Effelsberg 1.4 GHz observations of the central 10\degr x 10\degr of the Virgo cluster are presented. NVSS data are used to subtract point sources from our map. During the data reduction process...
The DRAO 26-m Large Scale Polarization Survey at 1.41 GHz (2004)
Wolleben, M., Landecker, T. L., Reich, W., Wielebinski, R.
The Effelsberg telescope as well as the DRAO synthesis telescope are currently surveying the Galactic polarized emission at 21 cm in detail. These new surveys reveal an unexpected richness of...
Magnetic fields in barred galaxies - III. The southern peculiar galaxy NGC 2442 (2004)
Harnett, J., Ehle, M., Fletcher, A., Beck, R., Haynes, R., Ryder, S., ...
High-resolution CO(1-0) survey of the Andromeda galaxy (2004)
Nieten, C., Neininger, N., Guélin, M., Lucas, R., Ungerechts, H., Beck, R., ...
The Effelsberg 1.4 GHz medium galactic latitude survey (2004)
Reich, W., Fürst, E., Reich, P., Uyaniker, B., Wielebinski, R., Wolleben, M.
Cold dust in a selected sample of nearby galaxies. I. The interacting galaxy NGC4631 (2003)
Dumke, M., Krause, M., Wielebinski, R.
We have observed the continuum emission of the interacting galaxy NGC4631 at 0.87 and 1.23mm using the Heinrich-Hertz-Telescope on Mt. Graham and the IRAM 30-m telescope on Pico Veleta. We have...
Magnetic fields in barred galaxies III: The southern peculiar galaxy NGC 2442 (2003)
Harnett, J., Ehle, M., Fletcher, A., Beck, R., Haynes, R., Ryder, S., ...
Observations of the southern peculiar galaxy NGC 2442 with the Australia Telescope Compact Array in total and linearly polarized radio continuum at 6cm are presented and compared with previously...
Synchrotron Polarization at High Galactic Latitude (2003)
Abidin, Z. Zainal, Leahy, J. P., Wilkinson, A., Reich, P., Reich, W., Wielebinski, R.
We present preliminary results from mapping the high-latitude Galactic polarization with the Effelsberg Telescope at $\lambda$21 cm. Structures on the resulting maps are mostly on the scale of...
Submillimeter Photometry of the ISOPHOT Virgo Cluster Deep Sample (2003)
Popescu,C. C., Banhidi,Z., Chini,R., Dumke,M., Tuffs,R.J., Völk,H.J., ...
The new era of large paraboloid antennas: the life of Prof. Dr. Otto Hachenberg (2003)
Seldom does a scientist get an opportunity in his lifetime to build an instrument that remains unchallenged as the world’s no. 1 for 30 years. The Effelsberg 100- m radio telescope, constructed...
Submillimeter Photometry of the ISOPHOT Virgo Cluster Deep Sample (2003)
Popescu, C. C., Banhidi, Z., Chini, R., Dumke, M., Tuffs, R.J., Völk, H.J., ...
Synchrotron polarization at high galactic latitude (2003)
Abidin, Z. Z., Leahy, J. P., Wilkinson, A., Reich, P., Reich, W., Wielebinski, R.
We present preliminary results from mapping the high-latitude galactic polarization with the Effelsberg Telescope at lambda21 cm. Structures on the resulting maps are mostly on the scale of several...
Systematic bias in interstellar magnetic field estimates (2003)
Beck, R., Shukurov, A., Sokoloff, D., Wielebinski, R.
Faraday rotation of the polarization plane in magnetized thermal plasma provides one of the most efficient methods to deduce regular magnetic fields from radio astronomical observations. Since the...
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...
New results on the spectral index-flux density relation from the WENSS/NVSS catalogs (2003)
Zhang, X., Reich, W., Reich, P., Wielebinski, R.
We present new statistical results on the spectral index-flux density relation for large samples of radio sources using archival data of the most sensitive surveys, such as WENSS and NVSS....
On large-scale magnetic field reversals in the outer Galaxy (2003)
Brown, J. C., Taylor, A. R., Wielebinski, R., Müller, P.
We combine the observations of rotation measures of extragalactic radio sources from the Canadian Galactic Plane Survey and pulsars to investigate the question of magnetic field reversals in the...
The diffuse radio emission from the Coma cluster at 2.675 GHz and 4.85 GHz (2003)
Thierbach, M., Klein, U., Wielebinski, R.
We present new measurements of the diffuse radio halo emission from the Coma cluster of galaxies at 2.675 GHz and 4.85 GHz using the Effelsberg 100-m telescope. After correction for the contribution...
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...
The diffuse radio emission from the Coma cluster at 2.675 GHz and 4.85 GHz (2002)
Thierbach, M., Klein, U., Wielebinski, R.
We present new measurements of the diffuse radio halo emission from the Coma cluster of galaxies at 2.675 GHz and 4.85 GHz using the Effelsberg 100--m telescope. After correction for the contribution...
Milestones in the Observations of Cosmic Magnetic Fields (2002)
Magnetic fields are observed everywhere in the universe. In this review, we concentrate on the observational aspects of the magnetic fields of Galactic and extragalactic objects. Readers can follow...
Camilo, F., Stairs, I. H., Lorimer, D. R., Backer, D. C., Ransom, S. M., Klein, B., ...
We report the discovery with the 100 m Green Bank Telescope of 65 ms radio pulsations from the X-ray pulsar J0205+6449 at the center of supernova remnant 3C58, making this possibly the youngest radio...
Molecular gas in NGC6946 (2002)
Walsh, W., Beck, R., Thuma, G., Weiss, A., Wielebinski, R., Dumke, M.
We present imaging of molecular gas emission in the star-forming spiral galaxy NGC6946. Our CO(1-0) and CO(3-2) images, made at 22" resolution with the IRAM 30-m and the Heinrich Hertz 10-m radio...
Camilo, F., Stairs, I. H., Lorimer, D. R., Backer, D. C., Ransom, S. M., Klein, B., ...
We report the discovery with the 100 m Green Bank Telescope of 65 ms radio pulsations from the X-ray pulsar J0205+6449 at the center of supernova remnant 3C 58, making this possibly the youngest...
Milestones in the observations of cosmic magnetic fields (2002)
Magnetic fields are observed everywhere in the universe. In this review, we concentrate on the observational aspects of the magnetic fields of Galactic and extragalactic objects. Readers can follow...
The development of radio astronomy (2002)
Following the detection of extraterrestrial radio waves in 1932 by Karl Jansky, radio astronomy developed quickly after World War II. It established itself soon as a new branch of astronomy with...
Molecular gas in NGC 6946 (2002)
Walsh, W., Beck, R., Thuma, G., Weiss, A., Wielebinski, R., Dumke, M.
We present imaging of molecular gas emission in the star- forming spiral galaxy NGC 6946. Our (CO)-C-12(1-0) and (CO)-C- 12(3-2) images, made at 22" resolution with the IRAM 30-m and the Heinrich...
Recent results on magnetic fields in the Milky Way (2002)
Wielebinski, R., Reich, W., Furst, E.
Of all the methods available to observe magnetic fields in the Milky Way, the mapping of linear polarization at cm wavelengths has proven to be most successful. The instruments that have contributed...
Polarization surveys of the Galaxy (2002)
Reich, W., Fürst, E., Reich, P., Wielebinski, R., Wolleben, M.
Polarization surveys of the Galaxy (2001)
Reich, W., Fuerst, E., Reich, P., Wielebinski, R., Wolleben, M.
We report on sensitive 21cm and 11cm polarization surveys of the Galactic plane carried out with the Effelsberg 100-m telescope at arcmin angular resolution and some related work. Highly structured...
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...
Unusual magnetic fields in the interacting spiral NGC 3627 (2001)
Soida, M., Urbanik, M., Beck, R., Wielebinski, R., Balkowski, C.
By observing the interacting galaxy NGC 3627 in radio polarization we try to answer the question to which degree the magnetic field follows the galactic gas flows. We obtained total power and...
Atomic and Molecular Gas in the Starburst Galaxy NGC4945 (2001)
Ott, M., Whiteoak, J. B., Henkel, C., Wielebinski, R.
Spatial and kinematical correlations between HI and CO (2-1) emission of the southern spiral galaxy NGC4945 are studied with a common angular (23 arcsec) and velocity resolution (7 km/s). The 21cm...
Warm gas in central regions of nearby galaxies. Extended mapping of CO(3-2) emission (2001)
Dumke, M., Nieten, Ch., Thuma, G., Wielebinski, R., Walsh, W.
We have mapped the CO(3-2) line emission from several nearby galaxies, using the Heinrich-Hertz-Telescope. Our investigation includes twelve galaxies of various types and in different stages of star...
Cold dust in the starburst galaxy M82 (2000)
Thuma, G., Neininger, N., Klein, U., Wielebinski, R.
The starburst galaxy M82 has been mapped at 1.2 mm using the IRAM 30-m telescope and the MPIfR 19-channel bolometer. The influence of the sidelobe pattern and the 12CO(2-1) line has been carefully...
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...
Mitra, D., Konar, S., Bhattacharya, D., Hoensbroech, A.V., Seiradakis, J.H., Wielebinski, R.
Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations. ulsar Astronomy - 2000 and Beyond, ASP Conference Series, Vol. 202; Proceedings of the 177th...
Heat and Charge Transport in Envelopes of Weakly and Strongly Magnetized Neutron Stars (2000)
M. Kramer, N. Wex, R. Wielebinski, Alexander Potekhin
. Thermal and electrical electron conductivities are calculated for a broad range of physical parameters typical for envelopes of neutron stars. An appropriate eective electron-ion scattering...
Mitra, D., Konar, S., Bhattacharya, D., Hoensbroech, A. V., Seiradakis, J. H., Wielebinski, R.
The evolution of the multipolar structure of the magnetic field of isolated neutron stars is studied assuming the currents to be confined to the crust. Lower orders ($\le 25$) of multipole are seen...
A 1400-MHz pilot search for young pulsars (1999)
Lorimer, D. R., Kramer, M., Mueller, P., Wex, N., Jessner, A., Lange, C., ...
We have used the Effelsberg 100-m radio telescope to conduct a 1400-MHz ($\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...
Uyaniker, B., Fuerst, E., Reich, W., Reich, P., Wielebinski, R.
We present the first section of a radio continuum and polarization survey at medium Galactic latitudes carried out with the Effelsberg 100-m telescope at 1.4 GHz. Four large fields have been...
Magnetic fields and strong density waves in the interacting galaxy NGC 3627 (1999)
Soida, M., Urbanik, M., Beck, R., Wielebinski, R.
We present 10.55 GHz observations of strong density-wave spiral NGC 3627. Total power and polarization maps with a resolution of 1.13', sensitive to a weak extended emmision were obtained. In the...
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...
Binary Eclipsing Millisecond Pulsars: A Decade of Timing (1999)
M. Kramer, N. Wex, R. Wielebinski, David J. Nice, Zaven Arzoumanian, Stephen E. Thorsett
. We present results of long-term timing of eclipsing binaries PSR B1744 24A and PSR B1957+20 at Arecibo, the VLA, and Green Bank. Both pulsars exhibit irregularities in pulsar rotation and orbital...
13CO at the centre of M82 (1998)
Neininger, N., Guelin, M., Klein, U., Garcia-Burillo, S., Wielebinski, R.
Using the IRAM interferometer, we have observed the nearby starburst galaxy M82 with a 4.2" resolution (~70 pc) in the 1->0 line of 13CO and in the 2.6-mm continuum. The spatial distribution of the...
Uyaniker, B., Fuerst, E., Reich, W., Reich, P., Wielebinski, R.
A radio continuum survey at medium Galactic latitudes with the Effelsberg 100-m telescope is being carried out at a centre frequency of 1.4 GHz in total power and linear polarization. Areas up to +/-...
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...
The large-scale structure of the diffuse radio halo of the Coma cluster at 1.4 GHz (1996)
Deiss, B. M., Reich, W., Lesch, H., Wielebinski, R.
We present new measurements of the diffuse radio emission from the Coma cluster of galaxies at 1.4 GHz using the Effelsberg 100-m-telescope. The halo source Coma C has an extent down to noise of...
Galactic Halo Magnetic Fields as Due to a `spiky' Wind (1994)
D. Elstner, G. Golla, G. Rüdiger, R. Wielebinski
. To approach the galactic dynamo we solve the mean-field induction equation (with a 2D time-stepping code after Elstner et al. 1990) for a well-defined flow system. The turbulence pattern is assumed...