Pt. 1: A Halo symbiotic binary not related to the globular cluster NGC 6401

Details Pt. 1: A Halo symbiotic binary not related to the globular cluster NGC 6401 Pt. 1: A Halo symbiotic binary not related to the globular cluster NGC 6401

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...292..501m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 292, no. 2, p. 501-506

Astronomy and Astrophysics

Astronomy

1

Emission Spectra, Galactic Halos, Globular Clusters, Infrared Astronomy, Infrared Spectra, Milky Way Galaxy, Symbiotic Stars, Visible Spectrum, Absorption Spectra, Astrometry, Distance, Galactic Bulge, Kinematics, Metallicity, Planetary Nebulae, Radial Velocity, Stellar Spectrophotometry

Scientific paper

We present absolute 4000-9000 A spectrophotometry and astrometry of the emission line object Pt 1, originally discovered as a planetary nebula possibly associated with the Bulge globular cluster NGC 6401 and later discussed as a symbiotic star. The radial velocity (-350 +/- 10 km/sec), the distance (2.7 +/- 1.2 kpc) and possibly also the metallicity of the late type giant all deny association of Pt 1 with NGC 6401. The extreme values derived both from absorption and emission features make Pt 1 the symbiotic star with the highest known radial velocity and strongly suggest that it belongs to the Halo population of the Galaxy. It is then seen projected against NGC 6401 and quite close to the galactic center by a mere coincidence. Our kinematic data on Pt 1 suggest an extremely eccentric galactocentric orbit with an orbital period of several 108 yr. The limited number of passages through the Bulge over the lifetime of the Galaxy supports the possibility that Pt 1 is a first generation Halo binary.

Affiliated with

Also associated with

No associations

Rating

Pt. 1: A Halo symbiotic binary not related to the globular cluster NGC 6401 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pt. 1: A Halo symbiotic binary not related to the globular cluster NGC 6401, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pt. 1: A Halo symbiotic binary not related to the globular cluster NGC 6401 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1317643