HerMES: The contribution to the cosmic infrared background from galaxies selected by mass and redshift
Date
2013Author
Viero, M. P.
Monclesi, L.
Quadri, L.F.
Arumugam, V.
Assef, R.J.
Bethermin, M.
Bock, J.
Bridge, C.
Casey, C.M.
Conley, A.
Cooray, Asantha
Farrah, D.
Glenn, J.
Heinis, S.
Ibar, Edo
Ikarashi, S.
Ivison, R.J.
Kohno, K.
Marsden, G.
Oliver, S.J.
Roseboom, I.G.
Schulz, B.
Scott, Douglas
Serra, P.
Vaccari, M.
Vieira, J.D.
Wang, L.
Wardlow, Julie L.
Wilson, G.W.
Yun, M.S.
Zemcov, M.
Metadata
Show full item recordAbstract
The cosmic infrared background (CIB), discovered in Far
Infrared Absolute Spectrophotometer (FIRAS) data from the
Cosmic Background Explorer (COBE; Puget et al. 1996;
Fixsen et al. 1998), originates from thermal re-radiation of
imagine cutting out hundreds of thumbnails from a map centered
on the positions where galaxies are known to be, and averaging
those thumbnails together until an image of the average galaxy
emerges from the noise. These positional priors can come
in many forms, e.g., they could be catalogs of UV, optical,
IR, or radio sources. Note that the output is the average of
that population in the stacked maps, i.e., there will likely be
sources whose actual fluxes are higher or lower. Thus, the more
homogeneous the sources comprising the input list, the more
meaningful the stacked flux will be.