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A study of the radial velocity of the star theta 1 Ori C.
DOI: 10.1134/1.1476981 Bibcode: 2002AstL...28..324V

Vitrichenko, E. A.

2002 • Astronomy Letters
IUE 19
A Chemically Decoupled Nucleus and Inner Polar Ring of the SBb Galaxy NGC 4548
DOI: 10.1134/1.1467255 Bibcode: 2002AstL...28..207S

Sil'chenko, O. K.

2002 • Astronomy Letters
eHST 10
A Preliminary Radial-Velocity Curve for the Star θ1 Ori D
DOI: 10.1134/1.1525835 Bibcode: 2002AstL...28..843V

Vitrichenko, É. A.

2002 • Astronomy Letters
IUE 10
Astrometric Orbits from a Direct Combination of Ground-Based Catalogs with the Hipparcos Catalog
DOI: 10.1134/1.1467262 Bibcode: 2002AstL...28..261G

Kiyaeva, O. V.; Goncharov, G. A.

2002 • Astronomy Letters
Hipparcos 9
Analysis of HST Ultraviolet Spectra for T Tauri Stars: Estimating the Interstellar Extinction and the Contribution from an Accretion Shock to the Emission-Continuum Formation
DOI: 10.1134/1.1525834 Bibcode: 2002AstL...28..835K

Lamzin, S. A.; Kravtsova, A. S.

2002 • Astronomy Letters
eHST 9
Acoustic Power Mapping for Active Regions from MDI, HLH, and TON Data
DOI: 10.1134/1.1484142 Bibcode: 2002AstL...28..411L

Hill, F.; Ladenkov, O. V.; Egamberdiev, Sh. A. +1 more

2002 • Astronomy Letters
SOHO 8
Two-Dimensional Spectroscopy of Double-Barred Galaxies
DOI: 10.1134/1.1518713 Bibcode: 2002AstL...28..755M

Moiseev, A. V.

We describe the results of our spectroscopy for a sample of barred galaxies whose inner regions exhibit an isophotal twist commonly called a secondary bar. The line-of-sight velocity fields of the ionized gas and stars and the light-of-sight velocity dispersion fields of the stars were constructed from two-dimensional spectroscopy with the 6m Spec…

2002 • Astronomy Letters
eHST 7
A minimum in the light curve of the classical symbiotic star YY Her in 2001.
DOI: 10.1134/1.1505506 Bibcode: 2002AstL...28..620K

Kolotilov, E. A.; Yudin, B. F.; Tatarnikova, A. A. +1 more

2002 • Astronomy Letters
IUE 1
Trigonometric Parallaxes and a Kinematically Adjusted Distance Scale for OB Associations
DOI: 10.1134/1.1336863 Bibcode: 2001AstL...27...58D

Dambis, A. K.; Rastorguev, A. S.; Mel'Nik, A. M.

By directly comparing the photometric distances of Blaha and Humphreys (1989) (BH) to OB associations and field stars with the corresponding Hipparcos trigonometric parallaxes, we show that the BH distance scale is overestimated, on average, by 10-20%. This result is independently corroborated by applying the rigorous statistical-parallax method a…

2001 • Astronomy Letters
Hipparcos 48
An Astrometric Study of the Triple Star ADS 48
DOI: 10.1134/1.1374678 Bibcode: 2001AstL...27..391K

Kiselev, A. A.; Kiyaeva, O. V.; Polyakov, E. V. +1 more

We analyze the series of relative positions of the hierarchical triple system ADS 48 ABF (AB = 6 arcsec, AF = 327 arcsec) obtained with the 26-inch Pulkovo refractor during 1961-1995 and measured with the Fantazia automated measuring system. A new relative orbit of pair AB is determined by the method of apparent-motion parameters using new observa…

2001 • Astronomy Letters
Hipparcos 33