Published May 1988
| Version v1
Journal article
Spectrum of EY Ori near the secondary minimum
Description
The results are given of spectral observations of the binary system EY Ori near the secondary minimum (eclipse). The spectrum of the star reveals the presence of a number of nonstationary processes manifested in variability of the line spectrum. The hydrogen line profiles indicate the existence of an expanding shell. Signs of the spectrum of the second component have not been found. The measured velocity of axial rotation of the observed component is 150+- 30 km/sec. At the phase 0.52-0.58 a deviation from the radial velocity curve of order 100 km/sec during the course of a day is observed. On the basis of the nature of the spectrum, the system has the features of typical Orion variables
Additional details
Publishing Information
- Journal Title
- Astrophysics (English Translation)
- Journal Volume
- 27
- Journal Issue
- 3
- Series
- Astrophysics (Engl. Transl.).
- Journal Page Range
- 614-617
- ISSN
- 0004-6396
- CODEN
- ATPYA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20070626
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Translation
- Descriptors DEI
- BINARY STARS; CALCIUM; COSMIC GASES; EMISSION SPECTRA; HYDROGEN; LINE WIDTHS; LUMINOSITY; RADIAL VELOCITY; RED SHIFT; SPECTROPHOTOMETRY; STELLAR ATMOSPHERES; VARIABLE STARS
- Descriptors DEC
- ALKALINE EARTH METALS; ATMOSPHERES; ELEMENTS; FLUIDS; GASES; METALS; NONMETALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPECTRA; STARS; VELOCITY
Optional Information
- Notes
- Translated from Astrofizika; 27: No. 3, 471-475(Nov-Dec 1987). Cover-to-cover translation of Astrofizika (USSR).