CAOSP abstracts, Volume: 54, No.: 2, year: 2024

Abstract: WD 1145+017 is the first white dwarf known to be orbited by disintegrating exoasteroids. It is a helium-dominated white dwarf with lines of metals in spectra and variable asymmetric transits. The analysis of WD 1145 light curve allowed us to identify at least 8 bodies which periodically eclipse the star, showing periods ranging from 4.490 to 4.493 hours. Waterfall diagram shows that some of these periods are not stable. Estimating transit depths gave us possibility to assess the disintegration rate. We have estimated the lower limit of dust masses associated with these bodies, which exhibits time-varying characteristics, fluctuating within the range of approximately 2-3×1014 kg.

Full text version of this article in PDF.

Back to:
CAOSP Vol. 54 No. 2 index
CAOSP archive main index
CAOSP main page
Astronomical Institute home page
Valid XHTML 1.0! Valid CSS!

Last update: February 22, 2024