Two-year monitoring of intra-day variability of quasar 1156+295 at 4.8 GHz

Aims. The quasar 1156+295 (4C +29.45) is one of the targets in the Urumqi monitoring program which aimed to search for evidence of annual modulation in the timescales of intra-day variable (IDV) sources.

[1]  T. Krichbaum,et al.  IDV observations & study of the quasar 0917+624 , 2013, 1304.1953.

[2]  T. Krichbaum,et al.  Intra-day variability observations of S5 0716+714 over 4.5 years at 4.8 GHz , 2012, 1206.0083.

[3]  T. Krichbaum,et al.  A seasonal cycle and an abrupt change in the variability characteristics of the intraday variable source S4 0954+65 , 2012, 1204.5012.

[4]  L. Gurvits,et al.  Radio structure of the blazar 1156 + 295 with sub-pc resolution , 2011, 1102.3046.

[5]  T. Krichbaum,et al.  The radio lightcurve of SN 2008iz in M82 revealed by Urumqi observations , 2009, 0909.5535.

[6]  M. Walker,et al.  Extremely anisotropic scintillations , 2008, 0809.1694.

[7]  Bonn,et al.  Serendipitous VLBI detection of rapid, large-amplitude, intraday variability in QSO 1156+295 , 2008, 0809.0451.

[8]  J. Lovell,et al.  The Micro-Arcsecond Scintillation-Induced Variability (MASIV) Survey. II. The First Four Epochs , 2008, 0808.1140.

[9]  B. Rickett Interstellar scintillation: observational highlights , 2007 .

[10]  J. Linsky,et al.  The Origin of Radio Scintillation in the Local Interstellar Medium , 2007, 0711.1144.

[11]  G. D. Bruyn,et al.  Emergence and disappearance of microarcsecond structure in the scintillating quasar J1819+3845 , 2007, 0705.3414.

[12]  Chinese Academy of Sciences,et al.  The IDV source J 1128+5925, a new candidate for annual modulation? , 2007, 0704.0871.

[13]  J. Lovell,et al.  Rapid Interstellar Scintillation of PKS 1257–326: Two-Station Pattern Time Delays and Constraints on Scattering and Microarcsecond Source Structure , 2006, astro-ph/0608619.

[14]  M. Cohen,et al.  MOJAVE: MONITORING OF JETS IN ACTIVE GALACTIC NUCLEI WITH VLBA EXPERIMENTS. XI. SPECTRAL DISTRIBUTIONS , 2014, 1404.0014.

[15]  A. Tzioumis,et al.  First Results from MASIV: The Microarcsecond Scintillation-induced Variability Survey , 2003, astro-ph/0306484.

[16]  E. Ros,et al.  Intraday variability in compact extragalactic radio sources - II. Observations with the Effelsberg 100 m radio telescope , 2003 .

[17]  A. Bruyn,et al.  Annual modulation in the scattering of J1819+3845: Peculiar plasma velocity and anisotropy , 2003, astro-ph/0303201.

[18]  J. Lovell,et al.  Rapid Variability and Annual Cycles in the Characteristic Timescale of the Scintillating Source PKS 1257–326 , 2002, astro-ph/0211451.

[19]  L. Kedziora-Chudczer,et al.  Interstellar Scintillation of the Polarized Flux Density in Quasar PKS 0405–385 , 2002, astro-ph/0208307.

[20]  T. Krichbaum,et al.  Intraday Variability in Northern Hemisphere Radio Sources , 2001, Publications of the Astronomical Society of Australia.

[21]  Xi-zhen Zhang,et al.  Annual Modulation in Intraday Variability Timescales of Extragalactic Radio Sources , 2001 .

[22]  M. Walker Interstellar scintillation of compact extragalactic radio sources , 1998 .

[23]  Stefan J. Wagner,et al.  Intraday Variability in Quasars and BL LAC Objects , 1995 .

[24]  P. Padovani,et al.  UNIFIED SCHEMES FOR RADIO-LOUD ACTIVE GALACTIC NUCLEI , 1995, astro-ph/9506063.

[25]  Ramesh Narayan,et al.  The physics of pulsar scintillation , 1992, Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences.

[26]  K. Johnston,et al.  Correlated Radio and Optical Variability in the BL Lacertae Object 0716+714 , 1991 .

[27]  C. Hummel,et al.  Rapid variability of extragalactic radio sources , 1987, Nature.

[28]  D. S. Heeschen,et al.  Flicker of extragalactic radio sources at two frequencies , 1984 .

[29]  W. A. Coles,et al.  Solar wind velocity estimation from multi-station IPS , 1978 .

[30]  Kenneth I. Kellermann,et al.  The Spectra of Opaque Radio Sources , 1969 .