Other
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aj....114.2686h&link_type=abstract
Astronomical Journal v.114, p.2686
Other
45
Variables: Other, Infrared: Stars, Stars: Agb
Scientific paper
Time series of high resolution spectra have been obtained for a set of 9 long period variables (LPVs), 4 Miras, and 5 semiregular variables (SRVs) in the 1.6-1.8μm infrared. The vibration-rotational lines of CO Δν=3 in this spectral interval have previously been shown to be good probes of the pulsational properties of cool variable stars. We use these spectral lines to show the differences and similarities in the radial velocity amplitude and excitation temperature among the Mira, SRa-, and SRb-type variables. All Miras of our sample show similar radial velocity variations and similar amplitudes independent of their period. The SRVs differ from the Miras by significantly lower amplitudes. All the LPVs show random velocity changes at the few km s-1 level. We find a correlation between radial velocity amplitude and visual amplitude.
Hinkle Kenneth H.
Lebzelter Thomas
Scharlach Werner W. G.
No associations
LandOfFree
Infrared Velocities of Long Period Variables: CO delta(upsilon)=3 in Four Miras and Five SR Variables 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 Infrared Velocities of Long Period Variables: CO delta(upsilon)=3 in Four Miras and Five SR Variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared Velocities of Long Period Variables: CO delta(upsilon)=3 in Four Miras and Five SR Variables will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1178816