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X-Ray Imaging Spectrometer (XIS) on Board Suzaku
Hamaguchi, Kenji; Dotani, Tadayasu; Miller, Eric D. +43 more
The XIS is an X-ray Imaging Spectrometer system, consisting of state-of-the-art charge-coupled devices (CCDs) optimized for X-ray detection, camera bodies, and control electronics. Four sets of XIS sensors are placed at the focal planes of the grazing-incidence, nested thin-foil mirrors (XRT: X-Ray Telescope) onboard the Suzaku satellite. Three of…
zCOSMOS: A Large VLT/VIMOS Redshift Survey Covering 0 < z < 3 in the COSMOS Field
Smail, I.; Finoguenov, A.; Kneib, J. -P. +74 more
zCOSMOS is a large-redshift survey that is being undertaken in the COSMOS field using 600 hr of observation with the VIMOS spectrograph on the 8 m VLT. The survey is designed to characterize the environments of COSMOS galaxies from the 100 kpc scales of galaxy groups up to the 100 Mpc scale of the cosmic web and to produce diagnostic information o…
The X-Ray Observatory Suzaku
Hamaguchi, Kenji; White, Nicholas E.; Isobe, Naoki +140 more
High-sensitivity wide-band X-ray spectroscopy is the key feature of the Suzaku X-ray observatory, launched on 2005 July 10. This paper summarizes the spacecraft, in-orbit performance, operations, and data processing that are related to observations. The scientific instruments, the high-throughput X-ray telescopes, X-ray CCD cameras, non-imaging ha…
Context Camera Investigation on board the Mars Reconnaissance Orbiter
Bell, James F.; Thomas, Peter C.; Wolff, Michael J. +11 more
The Context Camera (CTX) on the Mars Reconnaissance Orbiter (MRO) is a Facility Instrument (i.e., government-furnished equipment operated by a science team not responsible for design and fabrication) designed, built, and operated by Malin Space Science Systems and the MRO Mars Color Imager team (MARCI). CTX will (1) provide context images for data…
The Calibration of Mid-Infrared Star Formation Rate Indicators
Moustakas, J.; Roussel, H.; Leitherer, C. +25 more
With the goal of investigating the degree to which the MIR emission traces the SFR, we analyze Spitzer 8 and 24 µm data of star-forming regions in a sample of 33 nearby galaxies with available HST NICMOS images in the Paα (1.8756 µm) emission line. The galaxies are drawn from the SINGS sample and cover a range of morphologies and a fac…
The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era
Gilli, R.; Comastri, A.; Hasinger, G.
We present a detailed and self-consistent modeling of the cosmic X-ray background (XRB) based on the most up-to-date X-ray luminosity functions (XLF) and evolution of Active Galactic Nuclei (AGN). The large body of observational results collected by soft (0.5-2 keV) and hard (2-10 keV) X-ray surveys are used to constrain at best the properties of …
The Infrared Astronomical Mission AKARI*
Goto, Tomotsugu; Nakagawa, Takao; Shirahata, Mai +90 more
AKARI, the first Japanese satellite dedicated to infrared astronomy, was launched on 2006 February 21, and started observations in May of the same year. AKARI has a 68.5 cm cooled telescope, together with two focal-plane instruments, which survey the sky in six wavelength bands from the mid- to far-infrared. The instruments also have the capabilit…
Chromospheric Alfvénic Waves Strong Enough to Power the Solar Wind
Schrijver, C. J.; Ichimoto, K.; De Pontieu, B. +11 more
Alfvén waves have been invoked as a possible mechanism for the heating of the Sun's outer atmosphere, or corona, to millions of degrees and for the acceleration of the solar wind to hundreds of kilometers per second. However, Alfvén waves of sufficient strength have not been unambiguously observed in the solar atmosphere. We used images of high te…
The First Release COSMOS Optical and Near-IR Data and Catalog
Kneib, J. -P.; Aussel, H.; Sanders, D. B. +55 more
We present imaging data and photometry for the COSMOS survey in 15 photometric bands between 0.3 and 2.4 µm. These include data taken on the Subaru 8.3 m telescope, the KPNO and CTIO 4 m telescopes, and the CFHT 3.6 m telescope. Special techniques are used to ensure that the relative photometric calibration is better than 1% across the field…
The SAURON project - IX. A kinematic classification for early-type galaxies
Krajnović, Davor; Emsellem, Eric; van de Ven, Glenn +10 more
Two-dimensional stellar kinematics of 48 representative elliptical (E) and lenticular (S0) galaxies obtained with the SAURON integral-field spectrograph reveal that early-type galaxies appear in two broad flavours, depending on whether they exhibit clear large-scale rotation or not. We define a new parameter , which involves luminosity-weighted av…