Abstract
A Cosmic Far-InfraRed Background (CFIRB) has long been predicted that would trace the initial phases of galaxy formation. It has been first detected by [1] using COBE data and has been later confirmed by several recent studies [2], [3], [4]. I will present a new determination of the CFIRB that uses for the first time, in addition to COBE data, two independent gas tracers: the HI survey of Leiden/Dwingeloo [5] and the WHAM Hα survey [6]. We will see that the CFIRB above 100 μm is now very well constrained. The next step is to see if we can detect its fluctuations. To search for the CFIRB fluctuations, we have used the FIRBACK observations. FIRBACK is a deep cosmological survey conducted at 170μm with ISOPHOT [7]. We show that the emission of unresolved extra-galactic sources clearly dominates, at arc-minute scales, the background fluctuations in the lowest galactic emission regions. This is the first detection of the CFIRB fluctuations.
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
Puget J.L., Abergel A., Bernard J.P., et al. 1996, A&A 308, L5
Fixsen D.J., Dwek E., Mather J.C., et al. 1998, ApJ 508, 123
Hauser M.G., Arendt R.G., Kelsall T., et al., 1998, ApJ 508, 25
Lagache G., Abergel A., Boulanger F., et al., 1999, A&A 344, 322
Hartmann D., Burton W.B., Atlas of Galactic neutral Hydrogen, Cambridge University Press, 1997
Reynolds R.J., Tufte S.L., Haffner L.M., et al., 1998, PASA 1514
Dole H., et al., this proceeding
Lagache G., Haffner L.M., Reynolds R.J., Tufte S.L., A&A, in press (Astroph/9911355)
Guiderdoni B., Hivon E., Bouchet F., Maffei B., 1998, MNRAS 295, 877
Franceschini A., Andreani P., Danese L. 1998, MNRAS 296, 709
Puget J.L., Lagache G., Clements D.L. et al., 1999, A&A 354, 29
Lagache G., Dole H., to be submitted to A&A
Lagache G., J.-L. Puget, A&A, in press (Astroph/9910255)
Gautier T.N.III, Boulanger F., Pérault M., Puget J.L., 1992, AJ 103, 1313
Kogut A., Banday A.J., Bennett C.L., et al., 1996, ApJ 460, 1
Herbstmeier U., Abraham P., Lemke D., et al., 1998, A&A 332, 739
Wright E.L., 1998, ApJ 496, 1
Schlegel D.J., Finkbeiner D.P., Davis M., 1998, ApJ 500, 525
Miville-Deschênes M.A., PhD thesis, Paris XI University
Falgarone, E. in “Starbursts: triggers, nature and evolution”, Les Houches School, 1998, Ed. B. Guiderdoni & A. Kembhavi
Guiderdoni B., Bouchet B., Puget J.L., et al., 1997, Nature 390, 257
Haiman Z., Knox L., 1999, ApJ in press (Astroph/9906399)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2000 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Lagache, G. et al. (2000). The Extragalactic Background and Its Fluctuations in the Far-Infrared Wavelengths. In: Lemke, D., Stickel, M., Wilke, K. (eds) ISO Surveys of a Dusty Universe. Lecture Notes in Physics, vol 548. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45553-1_11
Download citation
DOI: https://doi.org/10.1007/3-540-45553-1_11
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-67479-5
Online ISBN: 978-3-540-45553-0
eBook Packages: Springer Book Archive