J-PAS

Javalambre Physics of the Accelerating Universe Astrophysical SurveyAlternative names| J-PAS

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Location(s)| Spain
Coordinates| 40°02′42″N 1°00′36″W﻿ / ﻿40.045°N 1.01°W﻿ / 40.045; -1.01
Website| www.j-pas.org

Location of J-PAS

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J-PAS (Javalambre Physics of the Accelerating universe Astrophysical Survey) is an astronomical survey[1] is being carried out by the Astrophysical Observatory of Javalambre (OAJ), located in Pico del Buitre in Sierra de Javalambre, in Teruel, Spain. J-PAS officially started in the summer of 2023.[2]

OAJ is managed by Aragon Center for Physics of the Cosmos (CEFCA) and consists of two telescopes: a 2.5-metre primary mirror telescope (JST/T250) and an 80-centimeter telescope (JAST/T80). J-PAS is surveying the sky with JST/T250 telescope which has a 1.2 Giga-pixel camera, constituted by an array of 14 CCDs. J-PAS will observe more than 8000 square degrees (about 1/5 of the whole sky) in 57 filters during 5 to 6 years.

J-PAS filters cover the entire visible region of the electromagnetic spectrum (3500 Å to 10000 Å)[3] and can be classified as:

* 54 narrow-band (roughly 14-nanometer width) filters.
* 2 medium-band (roughly 50-nanometer width) filters; these are located on the extreme blue and extreme red of the spectral coverage of J-PAS filters.
* 1 broad-band iSDSS (roughly 200-nanometer width) filter; which is also used as the detection filter.

## History and members

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See also: Astrophysical Observatory of Javalambre § History

J-PAS was one of the founding ideas behind OAJ, see OAJ history for more. The founding institutes of J-PAS are listed below.

* Centro de Estudios de Fisica del Cosmos de Aragon, in Teruel, Spain.
* Brazilian National Observatory, Rio de Janeiro, Brasil.
* Instituto de Astronomia, Geofísica e Ciências Atmosféricas da Universidade de São Paulo [pt], in São Paulo, Brazil.
* Instituto de Astrofísica de Andalucía-CSIC, in Granada, Spain.

Full J-PAS members are from the founding institutes above; although scientists from other institutes can also apply to become associate members or external collaborators.[4]

## References

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1. ^ Bonoli, S.; Marín-Franch, A.; Varela, J.; Vázquez Ramió, H.; Abramo, L.R.; Cenarro, J.; Dupke, R.A.; et, al. (September 2021). "The miniJPAS survey: A preview of the Universe in 56 colors". Astronomy and Astrophysics. 653: A31. arXiv:2007.01910. Bibcode:2021A&A...653A..31B. doi:10.1051/0004-6361/202038841.
2. ^ Valdivielso Casas, L. "The largest mapping of the Cosmos begins". CEFCA NEWS. CEFCA. Retrieved 4 November 2023.
3. ^ Dupke, Renato A.; Finoguenov, Alexis; Irwin, Jimmy; Bonoli, Silvia; Lopes De Oliveira, Raimundo; Cenarro, Javier; Marín Franch, Antonio; Abramo, Raul; Vilchez, Jose; Collaboration, Jpas (March 2019). "J-PAS/eROSITA Joint Cluster/AGN Survey". HEAD. 17: 107.17. Bibcode:2019HEAD...1710717D.
4. ^ (CEFCA), Tamara Civera. "Javalambre Physics of the Accelerating Universe Astrophysical Survey". www.j-pas.org. Archived from the original on 2023-12-02. Retrieved 2025-03-01.

## External links

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* Official website