Search Publications
Herschel-ATLAS: far-infrared properties of radio-selected galaxies
Rodighiero, G.; Ivison, R. J.; Clements, D. L. +41 more
We use the Herschel-Astrophysical Terahertz Large Area Survey (ATLAS) science demonstration data to investigate the star formation properties of radio-selected galaxies in the GAMA-9h field as a function of radio luminosity and redshift. Radio selection at the lowest radio luminosities, as expected, selects mostly starburst galaxies. At higher rad…
HerMES: Herschel-SPIRE observations of Lyman break galaxies
Aussel, H.; Elbaz, D.; Pérez-Fournon, I. +64 more
We present first results of a study of the submillimetre (submm) (rest-frame far-infrared) properties of z ~ 3 Lyman break galaxies (LBGs) and their lower redshift counterparts BX/BM galaxies, based on Herschel-SPIRE observations of the Northern field of the Great Observatories Origins Deep Survey (GOODS-N). We use stacking analysis to determine t…
A search for molecules in the atmosphere of HD 189733b
Pinfield, D. J.; Collier Cameron, A.; Barnes, J. R. +7 more
We use signal enhancement techniques and a matched filter analysis to search for the K-band spectroscopic absorption signature of the close orbiting extrasolar giant planet, HD 189733b. With time-series observations taken with the Near Infrared Spectrometer (NIRSPEC) at Keck II, we investigate the relative abundances of H2O and carbon b…
Proper motions and natures of First Byurakan Survey blue stellar objects
Mickaelian, A. M.; Sinamyan, P. K.
A new method for combined calculations of proper motions (PMs) based on accurate measurements of POSS1 and POSS2 epoch plates is given. The positional accuracy of various surveys and catalogues is estimated, and statistical weights for each of them are established. To achieve the best positions, weighted averaging of direct measurements on DSS1/DS…
Accretion disc in the eclipsing binary AU Mon
Djurašević, G.; Vince, I.; Latković, O. +1 more
We analyse the CoRoT and V-passband ground-based light curves of the interacting close binary AU Mon, assuming that there is a geometrically and optically thick accretion disc around the hotter and more massive star, as inferred from the photometric and spectroscopic characteristics of the binary. Our model fits the observations very well and prov…
A galaxy populations study of a radio-selected protocluster at z ~ 3.1
Pentericci, L.; Kajisawa, M.; Tanaka, I. +12 more
We present a population study of several types of galaxies within the protocluster surrounding the radio galaxy MRC 0316-257 at z ~ 3.1. In addition to the known population of Lyα emitters and [OIII] emitters, we use colour-selection techniques to identify protocluster candidates that are Lyman break galaxies (LBG) and Balmer break galaxies (BBGs)…
On the origin of M81 group extended dust emission
Elbaz, D.; Bock, J. J.; Clements, D. L. +57 more
Galactic cirrus emission at far-infrared wavelengths affects many extragalactic observations. Separating this emission from that associated with extragalactic objects is both important and difficult. In this paper we discuss a particular case, the M81 group, and the identification of diffuse structures prominent in the infrared, but also detected …
Long-term monitoring of LS I +61°303 with INTEGRAL
Rea, N.; Torres, D. F.; Zhang, S. +3 more
LS I +61°303 is one of the few high-mass X-ray binaries that has been recently observed at TeV and GeV energies. Here we investigate the hard X-ray spectral and timing properties of this source using the IBIS/ISGRI instrument on-board the INTEGRAL satellite. We carry out a systematic analysis based on all available INTEGRAL data since 2002 Decembe…
Early-type galaxies at large galactocentric radii - I. Stellar kinematics and photometric properties
Forbes, Duncan A.; Couch, Warrick J.; Hau, George K. T. +1 more
We present the results of a combined analysis of the kinematic and photometric properties at large galactocentric radii of a sample of 14 low-luminosity early-type galaxies in the Fornax and Virgo clusters. From Gemini South GMOS long-slit spectroscopic data, we measure radial profiles of the kinematic parameters vrot, σ, h3 …
Correlated optical/X-ray variability in the high-mass X-ray binary SAX J2103.5+4545
Zezas, A.; Reig, P.; Słowikowska, A. +1 more
SAX J2103.5+4545 is the Be/X-ray binary (BeX) with the shortest orbital period. It shows extended bright and faint X-ray states that last for a few hundred days. The main objective of this work is to investigate the relationship between the X-ray and optical variability and to characterize the spectral and timing properties of the bright and faint…