EMU: Pau-Brasil: acquisition of CCD detectors for the panoramic CCD camera of the Javalambre - physics of the accelerating universe survey

• Grant number: 09/54162-6
• Support Opportunities: Multi-user Equipment Program
• Start date: August 01, 2010
• End date: August 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
• Principal Investigator: Laerte Sodré Junior
• Grantee: Laerte Sodré Junior
• Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• EMU web page: Página do Equipamento Multiusuário não informada
• Type of equipment: Tipo de Equipamento Multiusuário não informado
• Manufacturer: Fabricante não informado
• Model: Modelo não informado

Abstract

Dark energy, or the source of the recent acceleration of the expansion of the Universe, is presently Cosmology's deepest mystery. A key observation to help solving it is the detection of baryon acoustic oscillations (BAOs) in the galaxy distribution. We will map positions and redshifts for tens of millions of galaxies over an unprecedented volume of the observable Universe to detect BAO imprints and to provide the deepest glimpse into the nature of dark energy by the time our survey, J-PAS, for Javalambre - PAU (Physics of the Accelerating Universe), is finished. This survey is a collaboration between Spanish and Brazilian scientists and will be conducted with the 2.5m telescope of the Javalambre Astrophysical Observatory (JAO), in Temel, Spain. JAO (commissioning estimated by December 2011) is managed by the Centro de Estudios de Fisica del Cosmos de Aragón, which is also responsible for operating the facility. The Brazilian side of this collaboration, PAU-BRASIL, will be coordinated by Observatório Nacional of Rio de Janeiro and IAG in São Paulo. JAO will be responsible for J-PAS, whose main objective is to measure BAOs with unprecedented accuracy by the time of its completion (2016 - 2017). The telescope will be equipped with a wide field camera with field-of-view of 6 sq. deg. which will image the sky with many (-40 to 50) narrow filters in the visible part of the spectrum. It will be the main (or the sole) instrument at the JAO 2.5 m telescope for at least seven years. The core of this camera consists of 14 CCDs of 10.5k x 10.5k pixels each. The survey will map an area of 8000 sq. deg. allowing the determination with large accuracy of photometric redshifts for tens of millions of galaxies (z less than 1 for red luminous galaxies). Besides cosmology, the survey will allow investigations of extra-galactic astronomy (e.g., stellar populations, galaxy evolution), of the Galaxy (e.g., halo populations, satellite debris), and even of solar system objects (e.g., asteroids). The funding for the camera final design and construction is the PAU-BRASIL contribution to J-PAS. The objective of this EMU proposal- the counterpart of São Paulo- is to partially fund this wide field camera through the purchase of the 14 CCD detectors that it requires, at an estimated cost of US$ 2.5 million. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

XAVIER, HENRIQUE S.; RAUL ABRAMO, L.; SAKO, MASAO; BENITEZ, NARCISO; CALVAO, MAURICIO O.; EDEROCLITE, ALESSANDRO; MARIN-FRANCH, ANTONIO; MOLINO, ALBERTO; REIS, RIBAMAR R. R.; SIFFERT, BEATRIZ B.; et al. Photometric Type Ia supernova surveys in narrow-band filters. Monthly Notices of the Royal Astronomical Society, v. 444, n. 3, p. 2313-2332, NOV 1 2014. (09/54006-4, 09/54162-6)