J-PAS (Javalambre Physics of the Accelerating universe Astrophysical Survey) is an astronomical survey is being carried out by the
Astrophysical Observatory of Javalambre (OAJ), located in Pico del Buitre in
Sierra de Javalambre
Sierra de Javalambre ( an, Sierra de Chabalambre) is a long mountain range in the Gúdar-Javalambre comarca of Aragon and the Rincón de Ademuz and Serrans comarcas of the Valencian Community, Spain.
Highway N-234 winds its way between Sier ...
, in
Teruel,
Spain.
J-PAS officially started in the summer of 2023.
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)
and can be classified as:
* 54 narrow-band (roughly 14-
nanometer
330px, Different lengths as in respect to the molecular scale.
The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American and British English spelling differences#-re ...
width) filters.
* 2 medium-band (roughly 50-
nanometer
330px, Different lengths as in respect to the molecular scale.
The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American and British English spelling differences#-re ...
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
330px, Different lengths as in respect to the molecular scale.
The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American and British English spelling differences#-re ...
width) filter; which is also used as the detection filter.
History and members
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.
* , in
São Paulo, Brazil.
*
Instituto de Astrofísica de Andalucía-
CSIC, in
Granada
Granada (,, DIN 31635, DIN: ; grc, Ἐλιβύργη, Elibýrgē; la, Illiberis or . ) is the capital city of the province of Granada, in the autonomous communities of Spain, autonomous community of Andalusia, Spain. Granada is located at the fo ...
, 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.
References
{{reflist
External links
Official website
Astronomical surveys
Observational astronomy
Photometric systems