Calar Alto 2 - herts.ac.ukstar.herts.ac.uk/ewass/talks/sessS/alves.pdf · Observatorio de Calar...
Transcript of Calar Alto 2 - herts.ac.ukstar.herts.ac.uk/ewass/talks/sessS/alves.pdf · Observatorio de Calar...
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Calar Alto 2.0Calar Alto 2.0
João Alves & David João Alves & David GaladGaladííJENAM 2009 JENAM 2009 University of Hertfordshire, 20th Apr 2009University of Hertfordshire, 20th Apr 2009
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Outline
• Who are we and what do we do?
• Where do we want to be in 5 yrs?
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Outline
Observatorio de Calar Alto – Calar Alto Sternwarte
Centro Astronómico Hispano Alemán (CAHA)
Max-Planck-Gesellschaft (MPG)Max-Planck Institut für Astronomie, MPIA, Heidelberg
Consejo Superior de Investigaciones Científicas (CSIC)Instituto de Astrofísica de Andalucía, IAA, Granada
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Provide top observational astronomytools to its community:State-of-the-art instruments, telescopesand services
CAHA has the sky quality, work force, experienceand infrastructure necessary to accoplishsuccessfully its current mission
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CAHA’s current strategy
1. Full and exhaustive characterization of the quality of the site
2. Drive science operations to perform a very high fraction of service mode observations(currently 60%-70%)
3. Calar Alto’s niche for the next decade
4. Education and Public Outreach
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Calar Alto NIR Sky Sánchez et al. 2007-8
Sky quality: optical and infra-red
Extinction monitoring (one band, soon: multi-band)Seeing monitorDark sky data (U, B, V, R, I, J, H, Ks, K)Sky spectraMeteo data
All data (raw and analised) available to the community!
Sánchez et al. (2007) PASP 119, 1186-1200Sánchez et al. (2008) PASP 120, 1244-1254
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Calar Alto Sky on par with sites hosting 10m-class telescopes
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Science time in 2007
2.2m 3.5m
Science: 98% Science: 98%
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Completion fraction 2007
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Refereed papers
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Publications
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Selected publications
Able reach accurate redshift values, (z/(1+z) ~ 0.03 for about 5e5 galaxies with I ~ 25 => study of the redshift evolution of the large-scale structure, the galaxy population and its evolution with redshift, the identification of clusters of galaxies, etc.
ALHAMBRA Moles et al. 2008
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Selected papers
General relativity test in strong field: The observations confirm the binary nature of the system and also provide evidence for the loss of orbital energy in agreement with the emission of gravitational waves from the system. In the absence of gravitational wave emission the outburst would have happened twenty days late
Valtonen et al. 2008, Nature
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Selected publications
Light echo of Cass A three centuries after explosion. Cass A was a type IIb SN. Their finding conclude a long-standing debate on the Cassiopeia A progenitor and provides new insight into supernova physics by linking the properties of the explosion to the wealth of knowledge about its remnant.
Krause et al. 2008Science
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Selected publications Krause et al. 2008Science
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Selected publications Krause et al. 2008Nature
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Selected publications Krause et al. 2008Nature
More scientific results at:
http://www.caha.es/ Releases
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Calar Alto Academy
• 110 graduate students, 6 Spanish Universities
• “Zero” financial cost to observatory• Some help needed from CAHA astronomers
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Public Outreach
• Refereed science• VIP visits• Aimed and the curious general public
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Public Outreach
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Light Pollution
Deep involvement with the regional government:
Law and regulation approvedCalar Alto has been present during the process, and will be present
during the developmentOffice for the Protection of Night Sky to be created Calar Alto will be a
part
Lot of work to be done at scientific, technical and political level, but goods prospects are arising
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Where do we want to be in 5 years?
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3.5m INS design studies
1.CARMENES:
A high-resolution échelle NIR and optical spectrograph
A. Quirrenbach (LSW) P. Amado (IAA)
• Planets around cold stars• Astroseismology• Astrophysics of cold stars• …
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2. XMS: Extremely Multiplexed SpectrographT. Shanks (University Durham)
• Dark matter cosmology• 4000 slits for low-res spectroscopy of galaxies (R approx 400)• 250 000 galaxy redshifts surveyed in 10 nights
3.5m INS design studies
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PANIC: Panoramic Infrared CameraJ. Fried (MPIA)M. Fernández (IAA)
1 deg field of viewOptimised for surveys
2.2 m new developement
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CAHA shares OPTICON philosophy and objectives
Calar Alto has participated in OPTICON and will participate in the future
2008: 20 OPTICON nights at the 2.2 m telescope10 OPTICON nights at the 3.5 m telescope
CAHA and OPTICON
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