Publication

Planck 2013 results. XVIII. The gravitational lensing-infrared background correlation

Julien Lesgourgues, Fabio Finelli
2014
Journal Articles

Abstract

The multi-frequency capability of the Planck satellite provides information both on the integrated history of star formation (via the cosmic infrared background, or CIB) and on the distribution of dark matter (via the lensing effect on the cosmic microwave background, or CMB). The conjunction of these two unique probes allows us to measure directly the connection between dark and luminous matter in the high redshift (1

Official source

https://infoscience.epfl.ch/entities/publication/5173b800-01ab-4f2e-bc2b-04df54b9231d

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Julien Lesgourgues, Fabio Finelli
2014
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5173b800-01ab-4f2e-bc2b-04df54b9231d

About this result

Ontological neighbourhood

Astronomy

Astrophysics: Physical cosmology

Related concepts (32)

Cosmic microwave background

The cosmic microwave background (CMB, CMBR) is microwave radiation that fills all space in the observable universe. It is a remnant that provides an important source of data on the primordial universe. With a standard optical telescope, the background space between stars and galaxies is almost completely dark. However, a sufficiently sensitive radio telescope detects a faint background glow that is almost uniform and is not associated with any star, galaxy, or other object.

Star formation

Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy.

Dark matter

Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Dark matter is called "dark" because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect, or emit electromagnetic radiation and is, therefore, difficult to detect. Various astrophysical observations - including gravitational effects which cannot be explained by currently accepted theories of gravity unless more matter is present than can be seen - imply dark matter's presence.

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