28,479 datasets found

The authors calculated atomic partition functions (APF) for iron ions, FeI-FeX, using recent compilations of atomic energy levels. Observed sets of atomic energy levels were...

The authors calculated atomic partition functions (APF) for nickel ions, Ni I - Ni X, using recent compilations of atomic energy levels. Observed sets of atomic energy levels...

The present catalog contains the most numerous, observationally homogeneous sample of contact binaries. It is derived from the OGLE experiment (Optical Gravitational Lensing...

We present an implementation of the difference image photometry based on the Alard and Lupton optimal PSF matching algorithm. The most important feature distinguishing this...

We present identification and astrometry of all previously known or suspected variables along with the discovery of six new variables in the globular cluster M3. The number of...

The basic physical processes responsible for X-ray emission from thin plasmas are considered. Collisional ionization or photoionization of inner shells of neutral atoms and ions...

The positions in right ascension and declination of 1105 FK5 stars, observed with a Meridian Circle during the period 1979 to 1991, are given. The average mean square error of a...

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Data are given for 205 LTT stars found on 23 areas, covering 25 square degrees each, south of declination -40D and right ascension between 04h 30m and 16h 00m. Four stars...

Energy distribution data on 238 secondary standard stars in the range 3200-7600{AA} with a 50{AA} step are presented. These stars are common to the Catalogue of the Sternbergh...

We present a list of 1679 blue stars located in a region of the Southern sky between the Magellanic Clouds. Equatorial coordinates and photographic V and B-V are given for stars...

Data are given for 377 new proper-motion stars with {mu}>=0.15arcsec/yr. The stars 1 to 144 are given in Wroblewski and Torres (1989A&AS...78..231W) Cone search...

Data are given for 104 LTT stars found on 11 areas, covering 25 squares degrees each, south of declination -40deg and right ascension between 00h and 04h30m. Three stars present...

Data are given for 144 new proper-motion stars with {mu}>=0.15arcsec/yr. Cone search capability for table J/A+AS/78/231/table2 (Stars 1/144)

Positions for a total of 3487 stars, scattered over 14 regions, have been determined using the Danish 1.5-m telescope at La Silla. The 14 regions are centred on one of the...

The present investigation was undertaken to get more information about the structure and the rotation of our Galaxy in the Puppis OB association area, towards longitude...

The Breit-Pauli R-matrix method developed under the Iron Project has been used to obtain extensive sets of oscillator strengths and transition probabilities for dipole allowed...

A catalog of a sample of 105 Jupiter family (JF) comets (defined as those with Tisserand constants T>2 and orbital periods P<20yr) is presented with our ``best estimates''...

We present the measurements of 65 visual double stars made in 1998 with the 50 cm refractor of the Nice Observatory (table 1). A CCD camera was attached to this refractor. 6 new...

An extensive set of dipole-allowed, intercombination, and forbidden transition probabilities for Fe V is presented. The Breit-Pauli R-matrix (BPRM) method is used to calculate...