High-resolution observations of interstellar NA I and CA II absorption lines toward the Scorpius OB1 association

Details High-resolution observations of interstellar NA I and CA II absorption lines toward the Scorpius OB1 association High-resolution observations of interstellar NA I and CA II absorption lines toward the Scorpius OB1 association

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...336..212c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 336, Jan. 1, 1989, p. 212-230. Research supported by SERC.

Astronomy and Astrophysics

Astrophysics

57

Absorption Spectra, B Stars, Calcium, Interstellar Matter, O Stars, Sodium, Galactic Rotation, Stellar Spectra, Velocity Distribution

Scientific paper

Observations of Na I and Ca II in absorption toward 22 stars in the Sco OB1 region, obtained at resolution R = 100,000 with a coude echelle spectrograph and 3.3-m camera on the 1.9-m telescope at Mt. Stromlo Observatory during 1986, are reported. The data are presented in extensive tables and graphs and analyzed in detail. Features discussed include (1) strong absorption at heliocentric velocities between 0 and -20 km/sec, (2) sharp discrete components with blueshifted velocities of up to -50 km/sec, and (3) some absorption at positive heliocentric velocities up to +20 km/sec. The (Na I)/(Ca II) ratios are found to be 4-200 for component (1), near 1 for component (2), and 0.4 or less for component (3).

Affiliated with

Also associated with

No associations

Rating

High-resolution observations of interstellar NA I and CA II absorption lines toward the Scorpius OB1 association 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 High-resolution observations of interstellar NA I and CA II absorption lines toward the Scorpius OB1 association, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-resolution observations of interstellar NA I and CA II absorption lines toward the Scorpius OB1 association will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-825858