The Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) releases the first set of data, corresponding to a sky area of one square degree observed at the well-known Extended Groth Strip. The data release contains a catalogue of more than 60,000 astronomical objects, each of them having more than a thousand parameters, including multi-band photometry in the unique set of 56 narrow-band (14 nm width) optical filters of J-PAS.
The J-PAS Pathfinder camera of the Javalambre Survey Telescope (JST250) received its first light on the night of 20th February, obtaining succesfully an image of the open cluster NGC1960. After the commissioning of the instrument, the Unique Scientific and Technical Infrastructure (ICTS, in their Spanish initials) Observatorio Astrofísico de Javalambre is working at full capacity, operating routinely the two main telescopes with first-level scientific instrumentation.
J-PAS XIII: The Science Awakens
2016-09-05 09:00
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The XIII Scientific Meeting of the Javalambre Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will be held in Teruel, in the headquarters of the Centro de Estudios de Física del Cosmos de Aragón (CEFCA) between the 5th and 9th September. This meeting, which is part of a series of meetings usually celebrated twice a year, expects the attendance of about 70 professional astronomers both from Spain and foreigners.
The aluminizing vacuum chamber and the cleaning unit for the maintenance of JST250 and JAST80 telescope's mirrors arrived yesterday at the Observatorio Astrofísico de Javalambre (OAJ). The chamber has been designed by CEFCA and Vacuum Technology Associates Inc, DYNAVAC (Boston, United States), responsible for its manufacture.
Optical fine tuning of the system during Final Acceptance tests provides images of 0.15” FWHM using “lucky imaging” techniques
CEFCA has proceeded with the final acceptance of the JST250 telescope installed at the Observatorio Astrofísico de Javalambre after carrying out additional tests with the verification camera in order to test proper operation of the telescope.
The OAJ already keeps the actuator system of JPCam in its clean room. After its arrival in mid January, the engineering team has carried out the integration of the system at the observatory in order to start with the verification and fine-tune processes, first in the clean room and, finally, in the JST250 telescope.
Achieved images of 0.33” PSF with “lucky imaging” techniques
Last September 2015, the JST250 telescope at the Observatorio Astrofísico de Javalambre passed successfully the Provisional Acceptance test review. This milestone represents a big step forward for the completion of the project, only pending the Final Acceptance tests that shall be completed in the next weeks.
During the last months has been carried out the installation process of the main storage and processing systems for the UPAD/T250. The infrastructure has been provided and installed by the companies Bull España S.A. and Fujitsu Technologies Solutions S.A. These systems increase the already existing capabilities of the UPAD/T80 in order to deal with the huge amount of data produced by JPCam once the camera is installed at JST250 telescope.
With the successful achievement of this important milestone, e2v has demonstrated that the focal plane is well within the very strict JPCam requirements. The JPCam engineering focal plane has been successfully integrated at e2v (Chelmsford, UK). JPCam, the main scientific instrument of the JST250 telescope, is a 1.2 Gpixel camera designed to perform the J-PAS survey.
In September 25th, at 22:57h Local Time, the Javalambre Survey Telescope (JST250) achieved engineering first light. This is a very important milestone in the project since it is the first time that photons from the Universe, in this case coming from the Polaris star, have gone through the complete optical system of the telescope as it was designed.
JST / T250 telescope of the Observatorio Astrofísico de Javalambre (OAJ) was completely integrated on September 2, 2014. The integration of the telescope with the final optical elements was made after a previous test phase in which the mechanical and control parts of the telescope were verified with dummies instead of the real optical elements.
Last week, CEFCA engineers moved to the Belgian company AMOS headquarters to discuss the final details of the final version of the control software of the telescope JST / T250. After the meetings, in which members of AMOS and of OSL company have participated, CEFCA engineers have given approval for the finalization of the software, which will be delivered to CEFCA in a few weeks.
In early December, and after an international process of peer review, Brazil’s Observatório Nacional, a partner institution in the Javalambre Physics of the Accelerated Universe Astrophysical Survey collaboration (J-PAS), and British company E2V signed a contract to provide the cryogenic camera system for the JST250 telescope of the Observatorio Astrofísico de Javalambre.
Towards the end of October, AMOS, the Belgian company responsible for the construction of the telescopes for the Observatorio Astrofísico de Javalambre (OAJ), started the manufacturing of the main mechanical parts of the JST250. The construction of the telescope, to be installed at the OAJ by mid 2012, is currently on schedule and its main structure is expected to be erected at the Belgian plant by January.
The Final Design Review of the JST250, the main telescope which will be instaled at the Observatorio Astrofísico de Javalambre, has been held at the new headquarters of the CEFCA during March 3rd and 4th. thickness of 250 mm. The inner hole, necessary for the light beam reaching the Cassegrain focus after being reflected in the secondary mirror, has a diameter of nearly 1010 mm.
In December 15th, CEFCA personnel visited AMOS headquarters in Liege (Belgium) to attend the Design Review meeting of the Javalambre JAST80 telescope. During this visit they had the opportunity to see in situ, at AMOS shops, the progress in the grinding and polishing processes of the two primary mirrors of the OAJ telescopes.
The M1 blank has been manufactured by the german company SCHOTT AG. It is made of ZERODUR, a glass ceramic with nearly null thermal expansion, commonly used for telescope mirrors and other engineering projects which require of using high accuracy not deformable surfaces. It weights 2366 kg and has an outer diameter of 2640 mm.
Marcelino Iglesias attends the First J-PAS Meeting opening
2010-06-15 12:40
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New seeing record at OAJ: 0.21
2010-03-29 13:05
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Award of contract signing for the construction of the OAJ
2010-03-23 13:11
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Preliminary award of OAJ's construction contract
2010-02-18 13:15
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Pico del Buitre's seismic activity report
2009-08-07 13:54
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Completed the Pico del Buitre's geotechnical study
2009-07-30 13:58
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