Publications (38)
A Sino-German 6cm polarisation survey of the Galactic plane IX. HII regions
X. Y. Gao, P. Reich, L. G. Hou +2
Large-scale radio continuum surveys provide data to get insights into the physical properties of radio sources. HII regions are prominent radio sources produced by thermal emission…
New lambda6cm observations of the Cygnus Loop
X. H. Sun, W. Reich, J. L. Han +2
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 pu…
A radio continuum survey of the southern sky at 1420 MHz. Observations and data reduction
J. C. Testori, P. Reich, J. A. Bava +5
We describe the equipment, observational method and reduction procedure of an absolutely calibrated radio continuum survey of the South Celestial Hemisphere at a frequency of 1420…
New high-frequency radio observations of the Cygnus Loop supernova remnant with the Italian radio telescopes
S. Loru, A. Pellizzoni, E. Egron +19
Supernova remnants (SNRs) represent a powerful laboratory to study the Cosmic-Ray acceleration processes at the shocks, and their relation to the properties of the circumstellar me…
A Sino-German 6\ cm polarization survey of the Galactic plane VI. Discovery of supernova remnants G178.2-4.2 and G25.1-2.3
X. Y. Gao, X. H. Sun, J. L. Han +3
Supernova remnants (SNRs) were often discovered in radio surveys of the Galactic plane. Because of the surface-brightness limit of previous surveys, more faint or confused SNRs awa…
Radio observations of the gamma-ray quasar 0528+134: Superluminal motion and an extreme scattering event
M. Pohl, W. Reich, T. P. Krichbaum +9
We report on multifrequency radio observations made with the Effelsberg 100-m telescope, the IRAM 30-m telescope and the Green Bank Interferometer between 1992 and 1994 of the …
Radio polarization observations of large supernova remnants at 6cm
J. L. Han, X. Y. Gao, X. H. Sun +7
We have observed 79 supernova remnants (SNRs) with the Urumqi 25m telescope at 6cm during the Sino-German 6cm polarization survey of the Galactic plane. We measured flux densities…
Radio observations of the -ray blazar 0528+134
M. Pohl, W. Reich, T. P. Krichbaum +10
We report multifrequency observations of the -ray blazar 0528+134 with the Effelsberg 100-m telescope, the IRAM 30-m telescope, and the NRL Green Bank Interferometer. 0528+134…
Radio observations of gamma-ray blazars
M. Pohl, A. Muecke, W. Reich +3
Starting in 1991 we have performed a regular monitoring of EGRET sources with the Effelsberg 100-m telescope and the IRAM 30-m at Pico Veleta. In comparison with data on a sample o…
The sino-german 6cm polarization survey of the galactic plane: A summary
J. L. Han, W. Reich, X. H. Sun +5
We have finished the 6cm polarization survey of the Galactic plane using the Urumqi 25m radio telescope. It covers 10deg<l<230deg in Galactic longitude and |b| <5deg in Galactic la…
A Sino-German 6cm polarization survey of the Galactic plane VII. Small supernova remnants
X. H. Sun, P. Reich, W. Reich +3
We study the spectral and polarization properties of supernova remnants (SNRs) based on our 6cm survey data. The observations were taken from the Sino-German 6cm polarization surve…
New 6cm and 11cm observations of the supernova remnant CTA 1
X. H. Sun, W. Reich, C. Wang +2
(Abridged) We conducted new 6cm and 11cm observations of CTA 1 using the Urumqi 25-m and Effelsberg 100-m telescopes. Data at other wavelengths were included to investigate the spe…
Broadband radio study of the supernova remnant Kes 73
S. Loru, A. Ingallinera, A. Pellizzoni +16
Strong shocks occurring in supernova remnants (SNRs), and their interaction with an often anisotropic surrounding medium, make SNRs ideal laboratories for studying the production a…
Polarization surveys of the Galaxy
W. Reich, E. Fuerst, P. Reich +2
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.…
A Survey of the Polarized Emission from the Galactic Plane at 1420 MHz with Arcminute Angular Resolution
T. L. Landecker, W. Reich, R. I. Reid +9
Context: Observations of polarized emission are a significant source of information on the magnetic field that pervades the Interstellar Medium of the Galaxy. Despite the acknowled…
G181.1+9.5, a new high-latitude low-surface brightness supernova remnant
R. Kothes, P. Reich, T. J. Foster +1
More than 90% of the known Milky Way supernova remnants are within 5 degrees of the Galactic Plane. We present the discovery of the supernova remnant G181.1+9.5, a new high-latitud…
A Sino-German 6 cm polarization survey of the Galactic plane III. The region from 10 degree to 60 degree longitude
X. H. Sun, W. Reich, J. L. Han +4
(Abridged) We have conducted a total intensity and polarization survey of the Galactic plane at 6 cm using the Urumqi 25 m telescope for the Galactic longitude range of 10 deg<l<60…
Magnetic fields of the W4 superbubble
X. Y. Gao, W. Reich, P. Reich +2
Superbubbles and supershells are the channels for transferring mass and energy from the Galactic disk to the halo. Magnetic fields are believed to play a vital role in their evolut…
A Radio Continuum and Polarisation Study of the pulsar wind nebula CTB87 (G74.9+1.2)
R. Kothes, W. Reich, S. Safi-Harb +3
We present radio continuum and linear polarisation observations of the pulsar wind nebula CTB87 (G74.9+1.2) with the Effelsberg 100-m radio telescope between 4.75 and 32 GHz. An an…
A Sino-German 6cm polarization survey of the Galactic plane IV. The region from 60deg to 129deg longitude
L. Xiao, J. L. Han, W. Reich +5
Linear polarization of diffuse Galactic emission is a signature of magnetic fields in the interstellar medium of our Galaxy. Observations at high frequencies are less affected by F…
The radio spectrum and magnetic field structure of SNR HB3
W. B. Shi, J. L. Han, X. Y. Gao +4
Evidence for a spectral flattening of the supernova remnant (SNR) HB3 (G132.7+1.3) was recently claimed in literature based on previously published total flux density data, and the…
A Sino-German 6\ cm polarization survey of the Galactic plane. V. Large supernova remnants
X. Y. Gao, J. L. Han, W. Reich +3
Observations of large supernova remnants (SNRs) at high frequencies are rare, but provide valuable information about their physical properties. The total intensity and polarization…
Peering into the Milky Way by FAST: IV. Identification of two new Galactic supernova remnants G203.1+6.6 and G206.7+5.9
X. Y. Gao, W. Reich, X. H. Sun +5
A 5 7 sky area containing two large radio structures of G203.1+6.6 and G206.7+5.9 with a size of about 2.5 and 3.5 respectively is…
A Sino-German lambda6 cm polarization survey of the Galactic plane I. Survey strategy and results for the first survey region
X. H. Sun, J. L. Han, W. Reich +4
(Abridged) Polarization measurements of the Galactic plane at lambda6 cm probe the interstellar medium (ISM) to larger distances compared to measurements at longer wavelengths, hen…
A Sino-German 6 cm polarization survey of the Galactic plane II. The region from 129 degree to 230 degree longitude
X. Y. Gao, W. Reich, J. L. Han +8
Linearly polarized Galactic synchrotron emission provides valuable information about the properties of the Galactic magnetic field and the interstellar magneto-ionic medium, when F…
A Sino-German 6cm polarisation survey of the Galactic plane - VIII. Small-diameter sources
W. Reich, X. H. Sun, P. Reich +3
Information of small-diameter sources is extracted from the Sino-German 6cm polarisation survey of the Galactic plane carried out with the Urumqi 25-m telescope. We performed two-d…
A statistical analysis of a Galactic all sky survey at 1.4 GHz
C. Burigana, L. La Porta, P. Reich +1
Radio surveys at frequencies of about 1 GHz allow to map the synchrotron emission in a frequency range where (except for very low Galactic latitudes or towards localized regions) i…
The impact of Galactic synchrotron emission on CMB anisotropy measurements. I. Angular power spectrum analysis of total intensity all-sky surveys
L. La Porta, C. Burigana, W. Reich +1
Galactic foreground emission is a limiting factor for precise cosmic microwave background (CMB) anisotropy measurements. We perform an angular power spectrum analysis (APS) of all-…
Polarization observations of SNR G156.2+5.7 at lambda 6cm
J. W. Xu, J. L. Han, X. H. Sun +4
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…
A 1.4 GHz radio continuum and polarization survey at medium Galactic latitudes: I. Observation and reduction technique
B. Uyaniker, E. Fuerst, W. Reich +2
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 polarizati…
Synchrotron Polarization at High Galactic Latitude
Z. Zainal Abidin, J. P. Leahy, A. Wilkinson +3
We present preliminary results from mapping the high-latitude Galactic polarization with the Effelsberg Telescope at 21 cm. Structures on the resulting maps are mostly on the s…
Monopole and dipole estimation for multi-frequency sky maps by linear regression
I. K. Wehus, U. Fuskeland, H. K. Eriksen +9
We describe a simple but efficient method for deriving a consistent set of monopole and dipole corrections for multi-frequency sky map data sets, allowing robust parametric compone…
A 1.4 GHz radio continuum and polarization survey at medium Galactic latitudes: II. First section
B. Uyaniker, E. Fuerst, W. Reich +2
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…
Discovery of supernova remnants in the Sino-German 6cm polarization survey of the Galactic plane
X. Y. Gao, X. H. Sun, J. L. Han +3
The Sino-German 6cm polarization survey has mapped in total intensity and polarization intensity over an area of approximately 2200 square degrees in the Galactic disk. This survey…
Deep 1.4-GHz observations of diffuse polarized emission
E. Carretti, S. Poppi, W. Reich +5
Polarized diffuse emission observations at 1.4-GHz in a high Galactic latitude area of the northern Celestial hemisphere are presented. The 3.2 X 3.2 deg^2 field, centred at RA = 1…
An angular power spectrum analysis of the DRAO 1.4 GHz polarization survey: implications for CMB observations
L. La Porta, C. Burigana, W. Reich +1
The aim of the present analysis is to improve the knowledge of the statistical properties of the Galactic diffuse synchrotron emission, which constrains sensitive CMB anisotropy me…
Discovery of a new supernova remnant G21.8-3.0
X. Y. Gao, P. Reich, W. Reich +2
Sensitive radio continuum surveys of the Galactic plane are ideal for discovering new supernova remnants (SNRs). From the Sino-German λ6 cm polarisation survey of the Galactic pla…
Is there a correlation between radio and gamma ray luminosities of AGN ?
A. Mücke, M. Pohl, P. Reich +11
The possibility of a correlation between the radio (cm)- and -ray luminosity of variable AGN seen by EGRET is investigated. We performed Monte-Carlo simulations of typical data…