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- Publisher Website: 10.1126/science.aat8123
- Scopus: eid_2-s2.0-85057548351
- PMID: 30498122
- WOS: WOS:000451609000039
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Article: A gamma-ray determination of the Universe’s star formation history
| Title | A gamma-ray determination of the Universe’s star formation history |
|---|---|
| Authors | |
| Issue Date | 2018 |
| Publisher | American Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org |
| Citation | Science, 2018, v. 362 n. 6418, p. 1031-1035 How to Cite? |
| 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. |
| Description | P. M. Saz Parkinson is one of the members of The Fermi-LAT Collaboration |
| Persistent Identifier | http://hdl.handle.net/10722/266101 |
| ISSN | 2023 Impact Factor: 44.7 2023 SCImago Journal Rankings: 11.902 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | The Fermi-LAT Collaboration | - |
| dc.contributor.author | Saz Parkinson, PM | - |
| dc.date.accessioned | 2018-12-17T02:16:47Z | - |
| dc.date.available | 2018-12-17T02:16:47Z | - |
| dc.date.issued | 2018 | - |
| dc.identifier.citation | Science, 2018, v. 362 n. 6418, p. 1031-1035 | - |
| dc.identifier.issn | 0036-8075 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/266101 | - |
| dc.description | P. M. Saz Parkinson is one of the members of The Fermi-LAT Collaboration | - |
| dc.description.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. | - |
| dc.language | eng | - |
| dc.publisher | American Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org | - |
| dc.relation.ispartof | Science | - |
| dc.rights | Science. Copyright © American Association for the Advancement of Science. | - |
| dc.rights | This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in [Science Journal Title] on [Volume number and date], DOI: [insert DOI number]. | - |
| dc.title | A gamma-ray determination of the Universe’s star formation history | - |
| dc.type | Article | - |
| dc.identifier.email | Saz Parkinson, PM: pablosp@hku.hk | - |
| dc.identifier.authority | Saz Parkinson, PM=rp01803 | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1126/science.aat8123 | - |
| dc.identifier.pmid | 30498122 | - |
| dc.identifier.scopus | eid_2-s2.0-85057548351 | - |
| dc.identifier.hkuros | 296462 | - |
| dc.identifier.volume | 362 | - |
| dc.identifier.issue | 6418 | - |
| dc.identifier.spage | 1031 | - |
| dc.identifier.epage | 1035 | - |
| dc.identifier.isi | WOS:000451609000039 | - |
| dc.publisher.place | United States | - |
| dc.customcontrol.immutable | csl 181220 | - |
| dc.identifier.issnl | 0036-8075 | - |