Near-Infrared Observations of IRAS Sources with SiO Masers in the Direction of the Near End of the Galactic Bar

Details Near-Infrared Observations of IRAS Sources with SiO Masers in the Direction of the Near End of the Galactic Bar Near-Infrared Observations of IRAS Sources with SiO Masers in the Direction of the Near End of the Galactic Bar

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasj...50..597d&link_type=abstract

Publications of the Astronomical Society of Japan, v.50, p.597-.

Astronomy and Astrophysics

Astronomy

19

Galaxies: Milky Way, Infrared: Sources, Stars: Kinematics, Stars: Long-Period Variables, Stars: Mass Loss

Scientific paper

In order to investigate the kinematics of stars in the direction of the near end of the galactic bar, J, H, and K photometric observations were made for 67 IRAS sources in the galactic plane (15(deg}From the J, H, K-band and IRAS 12 and 25 mu m intensities, we estimated the spectral energy distributions of the 61 sources. After correcting for interstellar extinction, the bolometric corrections to the 12 mu m fluxes of the sources were calculated. The distances from the Sun have been obtained assuming a constant stellar luminosity (L= 8000 LO ) for the sources. The stars with a large deviation of motion from the galactic rotation are found to fall at a distance of ~ 5.5 kpc from the Sun. This fact might indicate that the stellar motion deviates strongly from smooth galactic rotation near to the tip of the bar. % at a radius of about ~ 3 kpc from the galactic center.

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