Abstract
We present here a new method using interferometric measurements of quasars, that allows the determination of direct geometrical distances on cosmic scales. Quasar Broad Emission Line Regions sizes provide a ‘meter rule’ with which to measure the metric of the Universe. This method is less dependent of model assumptions, and even of variations in the fundamental constants (other than c). We discuss the spectral and spatial requirements on the VLTI observations needed to carry out these measurements.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Baldwin, J.A., Ferland, G., Korista, K. and Verner, D.: 1995, ApJL 455, L119.
Elvis, M.: 2000, ApJ 545, 63.
Elvis, M. and Karovska, M.: 2002, ApJ Letters, in press.
Freedman, W. et al.: 2001, ApJ 553, 47.
Kaspi, S., Smith, P.S., Netzer, H., Maoz, D., Jannuzi, B.T. and Giveon, U.: 2000, ApJ 533, 631.
Netzer, H. and Peterson, B.M.: 1997, in: D. Maoz, A. Sternberg and E.M. Leibowitz (eds.), Astronomical Time Series, Kluwer, Dordrecht, p. 85.
Panagia, N., Gilmozzi, R., Macchetto, F., Adorf, H.-M. and Kirshner, R.P.: 2001, ApJ 380, L23.
Paresce, F.: 2001, Science with VLTI,(http://www.eso.org/projects/vlti/).
Perlmutter, S. et al.: 1999, ApJ 517, 565.
Peterson, B.M.: 1993, PASP 105, 247.
Peterson, B.M.: 1997, An Introduction to Active Galactic Nuclei, CUP, Cambridge.
Peterson, B.M., Wanders, I., Betram, R., Hunley, J.F., Pogge, R.W. and Wagner, R.M.: 1998, ApJ 501, 82.
Peterson, B.M.: 2001, in: The Starburst-AGN Connection 2001,World Scientific, Singapore, astro-ph/0109495
Petrov, R. et al.: 2000, Proc. SPIE Vol. 4006 p. 68, in P.J. Lena and A. Quirrenbach (eds.), Interferometry in Optical Astronomy,http: //buz.obs-nice.fr/amber/)
Sasselov, D. and Karovska, M.: 1994, ApJ 432, 367.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Karovska, M., Elvis, M., Marengo, M. (2003). Distances on Cosmological Scales with VLTI. In: Garcia, P.J.V., Glindemann, A., Henning, T., Malbet, F. (eds) The Very Large Telescope Interferometer Challenges for the Future. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0157-0_30
Download citation
DOI: https://doi.org/10.1007/978-94-017-0157-0_30
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-6379-3
Online ISBN: 978-94-017-0157-0
eBook Packages: Springer Book Archive