Abstract
In this chapter we focus on the calibration of International LOFAR, which includes the long baselines provided by international stations, to produce high-resolution radio images. The Very Long Baseline Interferometry (VLBI) techniques are explained, as well as the different steps required to properly calibrate a long-baseline observation at low frequencies.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsNotes
- 1.
- 2.
A LOFAR core station consists of two sub-stations (2 × 24 tiles) in the HBA.
- 3.
A secondary calibrator is often referred to as an “in-beam” calibrator in VLBI if it is close enough to the target source to be observed contemporaneously.
- 4.
- 5.
References
Cordes, J.M., Lazio, T.J.W.: ArXiv Astrophysics e-prints (2002)
Greisen, E.W.: Information Handling in Astronomy - Historical Vistas, vol. 285, p. 109. Kluwer, Dordrecht (2003)
Heald, G.H., Pizzo, R.F., Orrú, E., et al.: Astron. Astrophys. 582, A123 (2015)
Intema, H.T., Jagannathan, P., Mooley, K.P., Frail, D.A.: Astron. Astrophys. 598, A78 (2017)
Jackson, N., Tagore, A., Deller, A., et al.: Astron. Astrophys. 595, A86 (2016)
Lane, W.M., Cotton, W.D., Helmboldt, J.F., Kassim, N.E.: Radio Sci. 47, 0 (2012)
Martí-Vidal, I.: Astron. Astrophys. 517, A83 (2010)
Moldón, J., Deller, A.T., Wucknitz, O., et al.: Astron. Astrophys. 574, A73 (2015)
Nigl, A., Zarka, P., Kuijpers, J., et al.: Astron. Astrophys. 471, 1099 (2007)
Rengelink, R.B., Tang, Y., de Bruyn, A.G., et al.: Astron. Astrophys. Suppl. Ser. 124, 259 (1997)
Sotomayor-Beltran, C., Sobey, C., Hessels, J.W.T., et al.: Astron. Astrophys. 552, A58 (2013)
Taylor, G.B., Carilli, C.L., Perley, R.A. (eds.): Synthesis Imaging in Radio Astronomy II. Astronomical Society of the Pacific Conference Series, vol. 180 (1999)
van Haarlem, M.P., Wise, M.W., Gunst, A.W., et al.: Astron. Astrophys. 556, A2 (2013)
Varenius, E., Conway, J.E., Martí-Vidal, I., et al.: Astron. Astrophys. 574, A114 (2015)
Acknowledgements
This chapter and all the techniques and procedures described in it are based on the work and many useful contributions of the LOFAR long baselines working group. AIPS is produced and maintained by the National Radio Astronomy Observatory, a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer International Publishing AG, part of Springer Nature
About this chapter
Cite this chapter
Moldón, J., Varenius, E. (2018). Long Baseline Imaging with LOFAR. In: Heald, G., McKean, J., Pizzo, R. (eds) Low Frequency Radio Astronomy and the LOFAR Observatory. Astrophysics and Space Science Library, vol 426. Springer, Cham. https://doi.org/10.1007/978-3-319-23434-2_11
Download citation
DOI: https://doi.org/10.1007/978-3-319-23434-2_11
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-23433-5
Online ISBN: 978-3-319-23434-2
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)