A gamma-ray determination of the Universe's star formation history

Fermi-LAT Collaboration

Collaborators

Fermi-LAT Collaboration:
S Abdollahi, M Ackermann, M Ajello, W Atwood, L Baldini, J Ballet, G Barbiellini, D Bastieri, J Becerra González, R Bellazzini, E Bissaldi, R Blandford, E Bloom, R Bonino, E Bottacini, S Buson, J Bregeon, P Bruel, R Buehler, R Cameron, R Caputo, P A Caraveo, E Cavazzuti, E Charles, S Chen, T Cheung, G Chiaro, S Ciprini, J Cohen-Tanugi, L Cominsky, J Conrad, D Costantin, S Cutini, F D'Ammando, F de Palma, A Desai, S Digel, N Di Lalla, M Di Mauro, L Di Venere, A Domínguez, C Favuzzi, S Fegan, J Finke, A Franckowiak, Y Fukazawa, S Funk, P Fusco, G Gallardo Romero, F Gargano, D Gasparrini, N Giglietto, F Giordano, M Giroletti, D Green, I Grenier, L Guillemot, S Guiriec, D H Hartmann, E Hays, K Helgason, D Horan, G Jóhannesson, D Kocevski, M Kuss, S Larsson, L Latronico, J Li, F Longo, F Loparco, B Lott, M Lovellette, P Lubrano, G Madejski, J Magill, S Maldera, A Manfreda, L Marcotulli, M Mazziotta, J McEnery, M Meyer, P Michelson, T Mizuno, M E Monzani, A Morselli, I Moskalenko, M Negro, E Nuss, R Ojha, N Omodei, M Orienti, E Orlando, J Ormes, M Palatiello, V Paliya, D Paneque, J Perkins, M Persic, M Pesce-Rollins, V Petrosian, F Piron, T Porter, J R Primack, G Principe, S Rainò, R Rando, M Razzano, S Razzaque, A Reimer, O Reimer, P Saz Parkinson, C Sgrò, E J Siskind, G Spandre, P Spinelli, D J Suson, H Tajima, M Takahashi, J Thayer, L Tibaldo, D F Torres, E Torresi, G Tosti, A Tramacere, E Troja, J V Valverde, G Vianello, M Vogel, K Wood, G Zaharijas

PMID: 30498122
DOI: 10.1126/science.aat8123

A gamma-ray determination of the Universe's star formation history

Fermi-LAT Collaboration. Science. 2018.

. 2018 Nov 30;362(6418):1031-1034.

doi: 10.1126/science.aat8123.

Author

Fermi-LAT Collaboration

Collaborators

Fermi-LAT Collaboration:
S Abdollahi, M Ackermann, M Ajello, W Atwood, L Baldini, J Ballet, G Barbiellini, D Bastieri, J Becerra González, R Bellazzini, E Bissaldi, R Blandford, E Bloom, R Bonino, E Bottacini, S Buson, J Bregeon, P Bruel, R Buehler, R Cameron, R Caputo, P A Caraveo, E Cavazzuti, E Charles, S Chen, T Cheung, G Chiaro, S Ciprini, J Cohen-Tanugi, L Cominsky, J Conrad, D Costantin, S Cutini, F D'Ammando, F de Palma, A Desai, S Digel, N Di Lalla, M Di Mauro, L Di Venere, A Domínguez, C Favuzzi, S Fegan, J Finke, A Franckowiak, Y Fukazawa, S Funk, P Fusco, G Gallardo Romero, F Gargano, D Gasparrini, N Giglietto, F Giordano, M Giroletti, D Green, I Grenier, L Guillemot, S Guiriec, D H Hartmann, E Hays, K Helgason, D Horan, G Jóhannesson, D Kocevski, M Kuss, S Larsson, L Latronico, J Li, F Longo, F Loparco, B Lott, M Lovellette, P Lubrano, G Madejski, J Magill, S Maldera, A Manfreda, L Marcotulli, M Mazziotta, J McEnery, M Meyer, P Michelson, T Mizuno, M E Monzani, A Morselli, I Moskalenko, M Negro, E Nuss, R Ojha, N Omodei, M Orienti, E Orlando, J Ormes, M Palatiello, V Paliya, D Paneque, J Perkins, M Persic, M Pesce-Rollins, V Petrosian, F Piron, T Porter, J R Primack, G Principe, S Rainò, R Rando, M Razzano, S Razzaque, A Reimer, O Reimer, P Saz Parkinson, C Sgrò, E J Siskind, G Spandre, P Spinelli, D J Suson, H Tajima, M Takahashi, J Thayer, L Tibaldo, D F Torres, E Torresi, G Tosti, A Tramacere, E Troja, J V Valverde, G Vianello, M Vogel, K Wood, G Zaharijas

PMID: 30498122
DOI: 10.1126/science.aat8123

Abstract

The light emitted by all galaxies over the history of the Universe produces the extragalactic background light (EBL) at ultraviolet, optical, and infrared wavelengths. The EBL is a source of opacity for gamma rays via photon-photon interactions, leaving an imprint in the spectra of distant gamma-ray sources. We measured this attenuation using 739 active galaxies and one gamma-ray burst detected by the Fermi Large Area Telescope. This allowed us to reconstruct the evolution of the EBL and determine the star formation history of the Universe over 90% of cosmic time. Our star formation history is consistent with independent measurements from galaxy surveys, peaking at redshift z ~ 2. Upper limits of the EBL at the epoch of reionization suggest a turnover in the abundance of faint galaxies at z ~ 6.

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Clues from gamma rays on the history of star birth.
Prandini E. Prandini E. Science. 2018 Nov 30;362(6418):995-996. doi: 10.1126/science.aav7344. Science. 2018. PMID: 30498112 No abstract available.

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A gamma-ray determination of the Universe's star formation history

Collaborators

A gamma-ray determination of the Universe's star formation history

Author

Collaborators

Abstract

Comment in

Publication types

LinkOut - more resources

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