HD 29647, a heavily reddened mercury--manganese star

Journal Article · Mon Mar 01 04:00:00 EST 1982 · Sov. Astron. Lett. (Engl. Transl.); (United States)

OSTI ID:6424293

Straizys, V; Glagolevskii, Y V; Romanyuk, I I; Bychkov, V D

The heavily reddened star HD 29647 (V = 8/sup m/.4) is investigated using spectrograms of 9- and 28-A/mm dispersion taken with the 6-m telescope as well as photometry in the seven-color Vilnius system. The hydrogen lines and the Balmer discontinuity yield T/sub e/ = 15 600 /sup 0/K (corresponding to spectral type B5) and log g = 3.70. HD 29647 is a peculiar Hg--Mn star. Its radial velocity of +14.1 +- 1.0 km/sec nearly coincides with that of the Taurus dark cloud and the embedded T Tau variables. If the star is at 165-pc distance near the front edge of the dark cloud and has E/sub B/-V = 1.06, its visual absolute magnitude would be -0/sup m/.9. On the basis of the photometry, trace variability may possibly exist in the short-wavelength U,P,X bands.

• Research Organization: Institute of Physics, Lithuanian Academy of Sciences, Vilnius
• OSTI ID: 6424293
• Journal Information: Sov. Astron. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Astron. Lett. (Engl. Transl.); (United States) Vol. 8:2; ISSN SALED
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
BALMER LINES
COLOR
ELECTROMAGNETIC RADIATION
ELEMENTS
GRAVITATION
MANGANESE
MERCURY
METALS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHOTOMETRY
PHYSICAL PROPERTIES
POLARIZATION
RADIAL VELOCITY
RADIATIONS
SPECTRA
STARS
TRANSITION ELEMENTS
ULTRAHIGH TEMPERATURE
ULTRAVIOLET RADIATION
VARIATIONS
VELOCITY
VISIBLE SPECTRA