Stellar laboratories - VII. New Kr iv – vii oscillator strengths and an improved spectral analysis of the hot, hydrogen-deficient DO-type white dwarf RE 0503−289

Free Access

Table 5

Parameters to estimate the circumstellar column densities around RE 0503−289 and RE 0457−281 owing to their AGB mass loss.

	RE 0503−289	RE 0457−281

Post-AGB age/ 10⁶ a	0.80^a	1.2^b
/ cm	5.0 × 10¹⁹ ^c	7.5 × 10¹⁹ ^c
/ pc	16.4	24.5
/ cm³	5.3 × 10⁵⁹	1.8 × 10⁶⁰
M _ZAMS ^d / M _⊙	1.0^a	2.5^b
M _final / M _⊙	0.514^e	0.660^f
AGB mass loss/ M _⊙	0.486	1.840
AGB mass loss/ M _{H i}	5.8 × 10⁵⁶	2.2 × 10⁵⁷
Column density^g/ cm^-2	5.4 × 10¹⁵	9.2 × 10¹⁵

Notes.

^(a)

Althaus et al. (2009);

^(b)

Renedo et al. (2010);

^(c)

v_exp = 20 km s^-1 assumed;

^(d)

zero-age main sequence;

^(e)

Werner et al. (2015);

^(f)

this paper;

^(g)

circumstellar, assumed location of swept up material within 0.9–1.0 .

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.