Search Publications
Spitzer Identifications and Classifications of Submillimeter Galaxies in Giant, High-Redshift, Lyα-Emission-Line Nebulae
Ivison, R. J.; Smail, Ian; Alexander, D. M. +4 more
Using Spitzer Space Telescope IRAC (3.6-8 µm) and MIPS (24 µm) imaging, as well as Hubble Space Telescope optical observations, we identify the IRAC counterparts of the luminous power sources residing within the two largest and brightest Lyα-emitting nebulae (LABs) in the SA 22 protocluster at z=3.09 (LAB 1 and LAB 2). These sources ar…
Hinode Calibration for Precise Image Co-Alignment between SOT and XRT (2006 November-2007 April)
Kano, Ryohei; Sakao, Taro; Tsuneta, Saku +11 more
To understand the physical mechanisms for activity and heating in the solar atmosphere, the magnetic coupling from the photosphere to the corona is an important piece of information from the Hinode observations, and therefore precise positional alignment is required among the data acquired by different telescopes. The Hinode spacecraft and its onb…
The Rosetta Lander (``Philae'') Investigations
Bibring, J. -P.; Rosenbauer, H.; Boehnhardt, H. +17 more
The paper describes the Rosetta Lander named Philae and introduces its complement of scientific instruments. Philae was launched aboard the European Space Agency Rosetta spacecraft on 02 March 2004 and is expected to land and operate on the nucleus of 67P/Churyumov-Gerasimenko at a distance of about 3 AU from the Sun. Its overall mass is ~98 kg (p…
Saturn eddy momentum fluxes and convection: First estimates from Cassini images
West, Robert A.; Porco, Carolyn C.; Ingersoll, Andrew P. +5 more
We apply an automated cloud feature tracking algorithm to estimate eddy momentum fluxes in Saturn's southern hemisphere from Cassini Imaging Science Subsystem near-infrared continuum image sequences. Voyager Saturn manually tracked images had suggested no conversion of eddy to mean flow kinetic energy, but this was based on a small sample of <1…
Hubble Space Telescope Advanced Camera for Surveys Mosaic of the Prototypical Starburst Galaxy M82
Gallagher, J. S.; Bond, H. E.; Noll, K. S. +9 more
In 2006 March, the Hubble Heritage Team obtained a large, four-filter (B, V, I, and Hα), 6 point mosaic data set of the prototypical starburst galaxy NGC 3034 (M82) with the Advanced Camera for Surveys on board the Hubble Space Telescope (HST). The resulting color composite Heritage image was released in 2006 April to celebrate HST's 16th annivers…
Intense Star Formation and Feedback at High Redshift: Spatially Resolved Properties of the z = 2.6 Submillimeter Galaxy SMM J14011+0252
Lutz, D.; Genzel, R.; Baker, A. J. +9 more
We present a detailed analysis of the spatially resolved properties of the lensed submillimeter galaxy (SMG) SMM J14011+0252 at z=2.56, combining deep near-infrared integral-field data obtained with SPIFFI on the VLT with other multiwavelength data sets. As previously discussed by other authors, the broad characteristics of SMM J14011+0252 in part…
A cluster in a crowded environment: XMM-Newton and Chandra observations of A3558
Finoguenov, A.; Rossetti, M.; Molendi, S. +1 more
Combining XMM-Newton and Chandra data, we have performed a detailed study of Abell 3558. Our analysis shows that its dynamical history is more complicated than previously thought. We have found some traits typical of cool core clusters (surface brightness peaked at the center, peaked metal abundance profile) and others that are more common in merg…
Comparing different approaches to model the rotational modulation of the Sun as a star
Lanza, A. F.; Rodonò, M.; Bonomo, A. S.
Context: The space missions MOST, COROT and Kepler are going to provide us with high-precision optical photometry of solar-like stars with time series extending from tens of days to several years. They can be modelled to obtain information on stellar magnetic activity by fitting the rotational modulation of the stellar flux produced by the brightn…
Recovery of surface reflectance spectra and evaluation of the optical depth of aerosols in the near-IR using a Monte Carlo approach: Application to the OMEGA observations of high-latitude regions of Mars
Bibring, J. -P.; Gondet, B.; Langevin, Y. +2 more
We present a model of radiative transfer through atmospheric particles based on Monte Carlo methods. This model can be used to analyze and remove the contribution of aerosols in remote sensing observations. We have developed a method to quantify the contribution of atmospheric dust in near-IR spectra of the Martian surface obtained by the OMEGA im…
Supermassive black holes in the Sbc spiral galaxies NGC 3310, NGC 4303 and NGC 4258
Marconi, A.; Capetti, A.; Carollo, C. M. +12 more
We have undertaken an HST Space Telescope Imaging Spectrograph survey of 54 late type spiral galaxies to study the scaling relations between black holes and their host spheroids at the low mass end. Our aim is to measure black hole masses or to set upper limits for a sizeable sample of spiral galaxies. In this paper we present new Space Telescope …