AAS 198th Meeting, June 2001
Session 47. Variable and Binary Stars - Spectroscopy
Display, Tuesday, June 5, 2001, 10:00am-6:30pm, Exhibit Hall

[Previous] | [Session 47] | [Next]

[47.05] 3 - 14 µm Spectroscopy of V445 Puppis

R.W. Russell, D.K. Lynch (The Aerospace Corporation), M.L. Sitko (U. Cincinnati)

We report 3 – 14 µm spectroscopy of the nova on Jan 31.45 2001 UT using BASS on the IRTF approximately one month after the object was discovered. The spectrum (W cm-2 µm-1) revealed only a smooth, featureless continuum that decreased monotonically with increasing wavelengths between 3 and 13.6 µm. Its slope is close to l-1.5, much shallower than the Rayleigh-Jeans tail of a black body. The spectrum was consistent with thermal emission from gray (constant)-emissivity dust whose temperatures ranged from around 280 K to upwards of 1300 K. IR magnitudes were L = 2.8, M = 1.6, N = -0.27, all ± 0.05. The presence of such strong IR continuum emission so early after the nova’s outburst suggests that this object is a recurrent nova and has undergone previous outbursts and dust formation events. This work supported by The Aerospace Corporation’s Independent Research and Development program and by the US Air Force Space and Missile Systems Center through the Mission Oriented Investigation and Experimentation program, under contract F4701-00-C-0009.

If you would like more information about this abstract, please follow the link to http://www.aero.org/remote-sensing/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

[Previous] | [Session 47] | [Next]