CALCIUM DEPLETION IN COOLING-FLOW NEBULAE AND THE ORIGIN OF THE LINE-EMITTING GAS

Authors
DONAHUE M VOIT GM
Citation
M. Donahue et Gm. Voit, CALCIUM DEPLETION IN COOLING-FLOW NEBULAE AND THE ORIGIN OF THE LINE-EMITTING GAS, The Astrophysical journal, 414(1), 1993, pp. 120000017-120000020
Citations number
38
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
414
Issue
1
Year of publication
1993
Part
2
Pages
120000017 - 120000020
Database
ISI
SICI code
0004-637X(1993)414:1<120000017:CDICNA>2.0.ZU;2-9
Abstract
We present upper limits on the [Ca II] lambda7291 flux from emission-l ine nebulae in cluster cooling flows. The observed lack of [Ca II] emi ssion indicates that gas-phase calcium is underabundant in cooling-flo w nebulae and is most likely depleted onto dust grains. If calcium in the line-emitting filaments is largely bound into dust, then these fil aments probably did not condense out of the hot intracluster gas.