output
19922026
Showing 1998 · astro-phShow all

21 papers · 2 filters

astro-ph1998★ 1 cited

AgapeZ1: a Large Amplification Microlensing Event or an Odd Variable Star Towards the Inner Bulge of M31

R. Ansari, M. Auriere, P. Baillon +14

AgapeZ1 is the brightest and the shortest duration microlensing candidate event found in the Agape data. It occured only 42" from the center of M31. Our photometry shows that the h…

astro-ph1998

Discovery of distant high luminosity infrared galaxies

Paul P. van der Werf, D. L. Clements, P. A. Shaver +1

We have developed a method for selecting the most luminous galaxies detected by IRAS based on their extreme values of R, the ratio of 60 micron and B-band luminosity. These objects…

astro-ph1998★ 4 cited

An ultra-deep ISOCAM observation through a cluster-lens

B. Altieri, L. Metcalfe, J. P. Kneib +10

We present results of ultra-deep ISOCAM observations through a cluster-lens at 7 and 15 micron with the Infrared Space Observatory (ISO) satellite. These observations reveal a larg…

astro-ph1998★ 1 cited

Destriping Polarised data

B. Revenu, F. Couchot, J. Delabrouille +1

We show how to take advantage of a circle scanning strategy, such as that planned for the Planck mission, to get rid of low frequency noises for polarised data.

astro-ph1998★ 108 cited

ISO LWS Spectroscopy of M82: A Unified Evolutionary Model

J. W. Colbert, M. A. Malkan, P. E. Clegg +9

We present the first complete far-infrared spectrum (43 to 197 um) of M82, the brightest infrared galaxy in the sky, taken with the Long Wavelength Spectrometer of the Infrared Spa…

astro-ph1998★ 5 cited

A classical approach to faint extragalactic source extraction from ISOCAM deep surveys. Application to the Hubble Deep Field

F. -X. Desert, J. -L. Puget, D. L. Clements +4

We have developed a general data reduction technique for ISOCAM data coming from various deep surveys of faint galaxies. In order to reach the fundamental limits of the camera (due…

astro-ph1998★ 51 cited

Detection of Far-Infrared Water Vapor, Hydroxyl, and Carbon Monoxide Emissions from the Supernova Remnant 3C 391

William T. Reach, Jeonghee Rho

We report the detection of shock-excited far-infrared emission of H2O, OH, and CO from the supernova remnant 3C 391, using the ISO Long-Wavelength Spectrometer. This is the first d…

astro-ph1998

Towards Completing a Large Area ULIRG Survey

D. L. Clements, W. J. Saunders, R. G. McMahon

We present the latest results in our efforts to produce a complete, large sample of Ultraluminous Infrared Galaxies (ULIRGs, L60 > 10^11.4 Lsun for H0=100kms^-1 Mpc^-1, q0=0.5) for…

astro-ph1998★ 21 cited

Observations of the Sunyaev-Zel'dovich effect at high angular resolution towards the galaxy clusters A665, A2163 and CL0016+16

F. -X. Desert, A. Benoit, S. Gaertner +9

We report on the first observation of the Sunyaev-Zel'dovich effect with the Diabolo experiment at the IRAM 30 metre telescope. A significant brightness decrement is detected in th…

astro-ph1998

Isocam deep surveys unveiling star formation in the mid-infrared

D. Elbaz, H. Aussel, C. J. Cesarsky +5

Before having exhausted the helium in its tank on April 8, 1998, the Infrared Space Observatory had time to perform several complementary surveys at various depths and areas within…

astro-ph1998★ 29 cited

Optimised polarimeter configurations for measuring the Stokes parameters of the Cosmic Microwave Background Radiation

F. Couchot, J. Delabrouille, J. Kaplan +1

We present configurations of polarimeters which measure the three linear Stokes parameters of the Cosmic Microwave Background Radiation with a nearly diagonal error matrix, indepen…

astro-ph1998★ 153 cited

Extragalactic database. VII Reduction of astrophysical parameters

G. Paturel, H. Andernach, L. Bottinelli +10

The Lyon-Meudon Extragalactic database (LEDA) gives a free access to the main astrophysical parameters for more than 100,000 galaxies. The most common names are compiled allowing u…

astro-ph1998★ 1 cited

Definitions of the Lambda Boo stars

R. Faraggiana, M. Gerbaldi

Since the identification of these stars by Morgan et al. in 1943, various definitions have been proposed for the stars of the Lambda Bootis group. We present here the various defin…

astro-ph1998

Determination of T_eff and log g for A0 type stars and its impact on the interpretation of the HR diagram with the HIPPARCOS results

M. Gerbaldi, R. Faraggiana, R. Burnage +3

The determination of the ``Fundamental Parameters'' T_eff and log g for a set of dwarf A0-type stars is discussed in terms of consistency when comparing these values determined thr…

astro-ph1998★ 38 cited

Mid--IR emission of galaxies in the Virgo cluster: II. Integrated properties

A. Boselli, J. Lequeux, M. Sauvage +7

We analyse the integrated properties of the Mid-IR emission of a complete, optically selected sample of galaxies in the Virgo cluster observed with the ISOCAM instrument on board t…

astro-ph1998★ 83 cited

Excitation and Disruption of a Giant Molecular Cloud by the Supernova Remnant 3C391

William T. Reach, Jeonghee Rho

Using the IRAM 30-m telescope, we observed the supernova remnant 3C 391 (G31.9+0.0) and its surroundings in the CO(2-1), HCO+(1-0), CS(2-1), CS(3-2), and CS(5-4) lines. The ambient…

astro-ph1998★ 16 cited

Prototype Tests for the CELESTE Solar Array Gamma--Ray Telescope

B. Giebels, R. Bazer-Bachi, H. Bergeret +24

The CELESTE experiment will be an Atmospheric Cherenkov detector designed to bridge the gap in energy sensitivity between current satellite and ground-based gamma-ray telescopes, 2…

astro-ph1998★ 216 cited

EROS and MACHO Combined Limits on Planetary Mass Dark Matter in the Galactic Halo

EROS Collaboration, MACHO Collaboration

The EROS and MACHO collaborations have each published upper limits on the amount of planetary mass dark matter in the Galactic Halo obtained from gravitational microlensing searche…

astro-ph1998★ 11 cited

The radial space distribution of KLUN-galaxies up to 200 Mpc: incompleteness or evidence for the behaviour predicted by fractal dimension ~ 2?

P. Teerikorpi, M. Hanski, G. Theureau +4

We have studied using the KLUN sample of 5171 spiral galaxies having Tully-Fisher distance moduli, the average radial space distribution of galaxies out to a distance of about 200…

astro-ph1998★ 102 cited

Infrared Excess and Molecular Clouds: A comparison of new suerveys of far-infrared and H I 21-cm emission at high galactic latitudes

William T. Reach, William F. Wall, Nils Odegard

We have created a map of the large-scale infrared surface brightness in excess of that associated with the atomic interstellar medium, using region-by-region correlations between t…

astro-ph1998★ 21 cited

High Resolution CO Imaging of the Molecular Disk around the jets in KjPN 8

Thierry Forveille, Patrick J. Huggins, Rafael Bachiller +1

We report high resolution (2.5 arcsec) CO J=1-0 line imaging which confirms the presence of a molecular disk around the origin of the spectacular, 14 arcmin times 4 arcmin, episodi…