Infrared spectroscopy of the 1999 outburst of U Scorpii

Details Infrared spectroscopy of the 1999 outburst of U Scorpii Infrared spectroscopy of the 1999 outburst of U Scorpii

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...378..132e&link_type=abstract

Astronomy and Astrophysics, v.378, p.132-141 (2001)

Astronomy and Astrophysics

Astrophysics

13

Stars: Individual: U Sco, Stars: Cataclysmic Variables, Infrared: Stars

Scientific paper

We present infrared spectroscopy of the recurrent nova U Sco, obtained during the 1999 eruption. The 0.94...2.4 mu m spectrum is dominated by \pion{H}i, \pion{He}i and \pion{He}{ii} emission lines and the pseudophotosphere of the hot white dwarf. The ejected material is overabundant in He and O; we estimate He/H =~ 4.5+/-1.7 and O/H =~ 0.013 by number, for electron temperature 2*E4 K. There appears to be excess emission longward of ~ 1.4 mu m, which is likely to be due to free-free emission by the material ejected in the 1999 eruption; from this we deduce an ejected mass of 2.7 (+/- 0.9) x 10-7 M_sun. Based on observations obtained at the New Technology Telescope, European Southern Observatory, La Silla, Chile (Target of opportunity observations).

Affiliated with

Also associated with

No associations

Rating

Infrared spectroscopy of the 1999 outburst of U Scorpii 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 spectroscopy of the 1999 outburst of U Scorpii, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared spectroscopy of the 1999 outburst of U Scorpii will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1099873