Epsilon Aurigae Hydrogen Alpha Emission Line Variation: The Horn Dance

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The Hopkins Phoenix Observatory has been doing high resolution spectroscopy on the 3rd magnitude long period (27.1 year) eclipsing binary star system epsilon Aurigae since August 2008 using a Lhires III spectrograph with a 2,400 line/mm grating mounted on a 12" Meade LX200 GPS telescope. Observations have been in both the sodium D line region of the spectrum and with near continuous observations of the hydrogen alpha region. The out-of- eclipse hydrogen alpha spectrum shows significant night-to-night variation. While many star systems exhibit a strong hydrogen alpha absorption line, like Be stars. Epsilon Aurigae also shows strong blue and red shifted emission components sometimes called wings or horns bracketing the absorption line. Unlike the Be stars where the blue and red horns remain relatively constant, the hydrogen alpha horns of epsilon Aurigae seem to be in a wild dance with continuous motion up and down. This paper will discuss techniques and result of recent out-of-eclipse high-resolution spectroscopy of epsilon Aurigae.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Epsilon Aurigae Hydrogen Alpha Emission Line Variation: The Horn Dance 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 Epsilon Aurigae Hydrogen Alpha Emission Line Variation: The Horn Dance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Epsilon Aurigae Hydrogen Alpha Emission Line Variation: The Horn Dance will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1111713

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.