2005A&A...429..297M


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.29CET09:12:20

2005A&A...429..297M - Astronomy and Astrophysics, volume 429, 297-308 (2005/1-1)

Depletion in post-AGB stars with a dusty disc. II.

MAAS T., VAN WINCKEL H. and LLOYD EVANS T.

Abstract (from CDS):

We present a chemical abundance analysis on the basis of high signal-to-noise and high resolution spectra for 12 stars of our newly defined sample. The selection criterion for the stars of this sample was their position in the ``RV Tauri'' box in the [12]-[25], [25]-[60] two-colour diagram. An additional requisite was the presence of a near-IR excess. We found that the photospheres of nine stars are affected by the depletion process. Since the most likely origin of the near-IR excess is a disc, this strongly suggests that the phenomenon of depletion and the presence of a disc are linked. Among the depleted stars we find different depletion patterns. In seven stars elements with a condensation temperature below 1500K are not or only slightly affected. Large underabundances are measured only for most elements with a condensation temperature above 1500K.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: AGB and post-AGB - stars: evolution - stars: binaries: spectroscopic

Simbad objects: 12

goto Full paper

goto View the reference in ADS

Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 CD-44 4961 pA* 08 56 14.1790943091 -44 43 10.710041643   10.55 9.176     F3e 53 1
2 V* BZ Pyx pA* 09 08 10.1395970261 -28 19 10.393046962   12.04 11.39     F6Ia 13 0
3 IRAS 09144-4933 RV* 09 16 09.6357192580 -49 46 12.091844704     11.1     M4/S? 17 0
4 V* GP Cha RV* 09 53 57.6766254343 -76 36 52.264816793   12.49 11.52     G0 12 0
5 IRAS 15469-5311 pA* 15 50 43.8045787663 -53 20 43.254393089   12.03 10.66     F3 21 0
6 V* V1333 Sco pA* 16 26 20.3836937817 -34 17 12.912826289   12.38 11.41     F8 16 0
7 CD-48 11445 pA* 17 07 36.6576312333 -48 19 08.476517172   12.33 10.55     G2p(R) 28 0
8 IRAS 17233-4330 pA* 17 26 58.6357460983 -43 33 13.582808324   11.99 11.56     A2Iab 15 0
9 V* LR Sco RV* 17 27 53.6264684155 -43 50 46.286212209   11.45 10.37     G0I 29 0
10 BD+03 3950 RV* 19 15 01.1800400072 +03 48 42.640112771   11.16 10.37     F8 31 0
11 BD-02 4931 pA* 19 18 22.7164743400 -02 42 10.880951310   11.55 10.78     B1III 29 0
12 V* QY Sge LP* 20 07 54.6188178294 +18 42 54.520818409   12.57       G0Ie 48 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2005A&A...429..297M and select 'bookmark this link' or equivalent in the popup menu


2020.01.29-09:12:20

© Université de Strasbourg/CNRS

    • Contact