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An absolute calibration of DENIS (deep near infrared southern sky survey)

An absolute calibration of the DENIS photometric system is presented. It includes the determination of the overall transmission profiles in the 3 bands, namely i, J and Ks, combining contributions from atmosphere, telescope mirrors, instrument lenses and dichroics, filters, and detectors. From these normalized profiles, isophotal and effective wavelengths are computed, using the...

An absolute calibration of DENIS (deep near infrared southern sky survey)

An absolute calibration of the DENIS photometric system is presented. It includes the determination of the overall transmission profiles in the 3 bands, namely i, J and Ks, combining contributions from atmosphere, telescope mirrors, instrument lenses and dichroics, filters, and detectors. From these normalized profiles, isophotal and effective wavelengths are computed, using the...

The angular sizes of dwarf stars and subgiants - Non-linear surface brightness relations in from interferometry

A&A Astronomy & Astrophysics P. Kervella 1 P. Fouqué 0 0 LATT, Université de Toulouse , CNRS, 14 avenue Edouard Belin, 31400 Toulouse , France 1 LESIA, Observatoire de Paris, CNRS UMR 8109, UPMC ... between ONERA, Observatoire de Paris, CNRS, and University Denis Diderot Paris 7. θUD (mas) 5.6000.070 5.6300.080 5.9360.016 P. Kervella and P. Fouqué: The angular sizes of dwarf stars and subgiants from

The Baade-Wesselink p-factor applicable to LMC Cepheids

Context. Recent observations of LMC Cepheids bring new constraints on the slope of the period-projection factor relation (hereafter Pp relation) that is currently used in the Baade-Wesselink (hereafter BW) method of distance determination. The discrepancy between observations and theoretical analysis is particularly significant for short period CepheidsAims. We investigate three...

Calibrating the Cepheid period-luminosity relation from the infrared surface brightness technique - I. The p-factor, the Milky Way relations, and a universal K-band relation

, J. , Jefferys , W. H. , Gieren , W. P. , & Fouqué , P. 2005b, ApJ , 631 , 572 Benedict , G. F. , McArthur , B. E. , Fredrick , L. W. , et al. 2002 , AJ, 124 , 1695 Benedict, G. F. , McArthur , B. E ... . , Bersier , D. , Mourard , D. , & Coudé de Foresto , V. 2004a , A &A, 416 , 941 Kervella , P. , Bersier , D. , Mourard , D. , et al. 2004b, A &A, 428 , 587 Kervella, P. , Fouqué , P. , Storm , J. , et al

Calibrating the Cepheid period-luminosity relation from the infrared surface brightness technique - II. The effect of metallicity and the distance to the LMC,

Conf . Proc. , 1170 , 3 Barnes , T. G. , & Evans , D. S. 1976 , MNRAS, 174 , 489 Barnes, T. G. , Storm , J. , Jefferys , W. H. , Gieren , W. P. , & Fouqué , P. 2005 , ApJ, 631 , 572 Benedict , G. F ... . , et al. 2008 , Acta Astron ., 58 , 163 Storm, J. , Carney , B. W. , Gieren , W. P. , et al. 2004 , A &A, 415 , 531 Storm, J. , Gieren , W. P. , Fouqué , P. , Barnes , T. G. , & Gómez , M. 2005 , A &A

Calibrating the Cepheid period-luminosity relation from the infrared surface brightness technique - II. The effect of metallicity and the distance to the LMC,

Conf . Proc. , 1170 , 3 Barnes , T. G. , & Evans , D. S. 1976 , MNRAS, 174 , 489 Barnes, T. G. , Storm , J. , Jefferys , W. H. , Gieren , W. P. , & Fouqué , P. 2005 , ApJ, 631 , 572 Benedict , G. F ... . , et al. 2008 , Acta Astron ., 58 , 163 Storm, J. , Carney , B. W. , Gieren , W. P. , et al. 2004 , A &A, 415 , 531 Storm, J. , Gieren , W. P. , Fouqué , P. , Barnes , T. G. , & Gómez , M. 2005 , A &A

ExELS: an exoplanet legacy science proposal for the ESA Euclid mission – I. Cold exoplanets

The Euclid mission is the second M-class mission of the ESA Cosmic Vision programme, with the principal science goal of studying dark energy through observations of weak lensing and baryon acoustic oscillations. Euclid is also expected to undertake additional Legacy Science programmes. One such proposal is the Exoplanet Euclid Legacy Survey (ExELS) which will be the first survey...

The long-period Galactic Cepheid RS Puppis - II. 3D structure and mass of the nebula from VLT/FORS polarimetry

Context. The southern long-period Cepheid RS Pup is surrounded by a large circumstellar dusty nebula reflecting the light from the central star. Due to the changing luminosity of the central source, light echoes propagate into the nebula. This remarkable phenomenon was the subject of Paper I. The origin and physical properties of the nebula are however uncertain: it may have been...

The long-period Galactic Cepheid RS Puppis - I. A geometric distance from its light echoes

databases at the CDS, Strasbourg (France), and NASA’s Astrophysics Data System Bibliographic Services. Barnes , T. G. , Storm , J. , Jefferys , W. H. , Gieren , W. P. , & Fouqué , P. 2005 , ApJ, 631 , 572

Cepheid distances from infrared long-baseline interferometry - III. Calibration of the surface brightness-color relations

The recent VINCI/VLTI observations presented in Paper I have nearly doubled the total number of available angular diameter measurements of Cepheids. Taking advantage of the significantly larger color range covered by these observations, we derive in the present paper high precision calibrations of the surface brightness-color relations using exclusively Cepheid observations...

The EFIGI catalogue of 4458 nearby galaxies with detailed morphology

. Arnouts, A. Baillard, E. Bertin, P. Fouqué, V. de Lapparent, J.-F. Le Borgne, D. Makarov, L. Makarova, H. J. McCracken, Y. Mellier, R. Pelló). Statistics are automatically computed for each astronomer

A frozen super-Earth orbiting a star at the bottom of the main sequence

A&A Astronomy & Astrophysics D. Kubas 7 8 J. P. Beaulieu 6 8 D. P. Bennett 13 A. Cassan 8 A. Cole 12 J. Lunine 10 11 J. B. Marquette 8 S. Dong 14 15 A. Gould 9 T. Sumi 4 V. Batista 8 9 P. Fouqué 5 ... . 2001 , Nature, 414 , 617 Beaulieu , J.-P. , Bennett , D. P. , Fouqué , P. , et al. 2006 , Nature, 439 , 437 Bennett , D. P. , & Rhie , S. H. 1996 , ApJ, 472 , 660 Bennett , D. P. , Anderson , J. , Bond

Calibration of the distance scale from galactic Cepheids - II. Use of the HIPPARCOS calibration

New estimates of the distances of 36 nearby galaxies is presented. These are based on the calibration of the V- and I-band Period-Luminosity relations for galactic Cepheids measured by the HIPPARCOS mission. The distance moduli are obtained in a classical way. The statistical bias due to the incompleteness of the sample is corrected according to the precepts introduced by...

CO(1–0) observation of isolated late-type galaxies

We present 12CO(–0) line observations of 99 galaxies obtained with the SEST 15 m, the Kitt Peak 12 m and the IRAM 30 m telescopes. The target galaxies were selected from the catalogue of isolated galaxies of Karachentseva ([CITE]). These data are thus representative of the CO properties of isolated late-type galaxies. All objects were observed in their central position, those...

Difference imaging photometry of blended gravitational microlensing events with a numerical kernel

The numerical kernel approach to difference imaging has been implemented and applied to gravitational microlensing events observed by the PLANET collaboration. The effect of an error in the source-star coordinates is explored and a new algorithm is presented for determining the precise coordinates of the microlens in blended events, essential for accurate photometry of difference...

Serendipitous detection of galaxies behind the Milky Way from the DENIS survey

A search has been undertaken at Lyon Observatory to identify, by eye, galaxy candidates at galactic latitudes lower than ±15 degrees on the DENIS J and K-band images. This paper presents a list of 2028 objects that were serendipitously detected throughout the DENIS survey. Cross-identification with galaxy entries in the LEDA Database has been performed. Comparison with the second...

First DENIS I-band extragalactic catalog

This paper presents the first I-band photometric catalog of the brightest galaxies extracted from the Deep Near Infrared Survey of the Southern Sky (DENIS) An automatic galaxy recognition program has been developed to build this provisional catalog. The method is based on a discriminating analysis. The most discriminant parameter to separate galaxies from stars is proved to be...

First DENIS I-band extragalactic catalog

This paper presents the first I-band photometric catalog of the brightest galaxies extracted from the Deep Near Infrared Survey of the Southern Sky (DENIS) An automatic galaxy recognition program has been developed to build this provisional catalog. The method is based on a discriminating analysis. The most discriminant parameter to separate galaxies from stars is proved to be...

New neighbours: II. An M9 dwarf at 4 pc, DENIS-P J104814.7-395606.1

We present the discovery of a previously unknown member of the immediate solar neighbourhood, DENIS-P J104814.7-395606.1 (hereafter DENIS 1048-39), identified while mining the DENIS database for new nearby stars. A HIRES echelle spectrum obtained with the 10-m Keck telescope shows that it is an M9 dwarf. DENIS 1048-39 has a very bright apparent magnitude () for its spectral type...